CERN Accelerating science

Article
Report number arXiv:2204.13042 ; LHCb-PAPER-2022-001 ; CERN-EP-2022-062
Title Evidence for modification of $b$ quark hadronization in high-multiplicity $pp$ collisions at $\sqrt{s} = 13$ TeV
Author(s)

Aaij, Roel (Nikhef, Amsterdam) ; Abdelmotteleb, Ahmed Sameh Wagih (Warwick U.) ; Abellan Beteta, Carlos (Zurich U.) ; Abudinén, Fernando Jesus (Warwick U.) ; Ackernley, Thomas (Liverpool U.) ; Adeva, Bernardo (U. Santiago de Compostela (main)) ; Adinolfi, Marco (Bristol U.) ; Afsharnia, Hossein (Clermont-Ferrand U.) ; Agapopoulou, Christina (Paris U., VI-VII) ; Aidala, Christine Angela (U. Michigan, Ann Arbor) ; Aiola, Salvatore (INFN, Milan) ; Ajaltouni, Ziad (Clermont-Ferrand U.) ; Akar, Simon (Cincinnati U.) ; Akiba, Kazuyoshi (Nikhef, Amsterdam) ; Albrecht, Johannes (Tech. U., Dortmund (main)) ; Alessio, Federico (CERN) ; Alexander, Michael (Glasgow U.) ; Alfonso Albero, Alejandro (U. Barcelona (main)) ; Aliouche, Zakariya (Manchester U.) ; Alvarez Cartelle, Paula (Cambridge U.) ; Amato, Sandra (Rio de Janeiro Federal U.) ; Amey, Jake Lewis (Bristol U.) ; Amhis, Yasmine (IJCLab, Orsay ; CERN) ; An, Liupan (CERN) ; Anderlini, Lucio (INFN, Florence) ; Andersson, Martin (Zurich U.) ; Andreianov, Aleksei ; Andreotti, Mirco (INFN, Ferrara) ; Andreou, Dimitra (Syracuse U.) ; Ao, Dong (Beijing, GUCAS) ; Archilli, Flavio (Heidelberg U.) ; Artamonov, Alexander ; Artuso, Marina (Syracuse U.) ; Aslanides, Elie (Marseille, CPPM) ; Atzeni, Michele (Zurich U.) ; Audurier, Benjamin (Ecole Polytechnique) ; Bachmann, Sebastian (Heidelberg U.) ; Bachmayer, Marie (Ecole Polytechnique, Lausanne) ; Back, John (Warwick U.) ; Bailly-reyre, Aurelien (Paris U., VI-VII) ; Baladron Rodriguez, Pablo (U. Santiago de Compostela (main)) ; Balagura, Vladislav (Ecole Polytechnique) ; Baldini, Wander (INFN, Ferrara) ; Baptista de Souza Leite, Juan (Rio de Janeiro, CBPF) ; Barbetti, Matteo (INFN, Florence ; Florence U.) ; Barlow, Roger (Manchester U.) ; Barsuk, Sergey (IJCLab, Orsay) ; Barter, William (Imperial Coll., London) ; Bartolini, Matteo (Cambridge U.) ; Baryshnikov, Fedor ; Basels, Jan-Marc (Aachen, Tech. Hochsch.) ; Bassi, Giovanni (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Batsukh, Baasansuren (Beijing, Inst. High Energy Phys.) ; Battig, Alexander (Tech. U., Dortmund (main)) ; Bay, Aurelio (Ecole Polytechnique, Lausanne) ; Beck, Anja (Warwick U.) ; Becker, Maik (Tech. U., Dortmund (main)) ; Bedeschi, Franco (INFN, Pisa) ; Bediaga, Ignacio (Rio de Janeiro, CBPF) ; Beiter, Andrew (Syracuse U.) ; Belavin, Vladislav ; Belin, Samuel (U. Santiago de Compostela (main)) ; Bellee, Violaine (Zurich U.) ; Belous, Konstantin ; Belov, Ilia ; Belyaev, Ivan ; Bencivenni, Giovanni (Frascati) ; Ben-Haim, Eli (Paris U., VI-VII) ; Berezhnoy, Alexander ; Bernet, Roland (Zurich U.) ; Berninghoff, Daniel (Heidelberg U.) ; Bernstein, Harris Conan (Syracuse U.) ; Bertella, Claudia (Manchester U.) ; Bertolin, Alessandro (INFN, Padua) ; Betancourt, Christopher (Zurich U.) ; Betti, Federico (CERN) ; Bezshyiko, Iaroslava (Zurich U.) ; Bhasin, Srishti (Bristol U.) ; Bhom, Jihyun (Cracow, INP) ; Bian, Lingzhu (Wuhan U.) ; Bieker, Martin Stefan (Tech. U., Dortmund (main)) ; Biesuz, Nicolo Vladi (INFN, Ferrara) ; Bifani, Simone (Birmingham U.) ; Billoir, Pierre (Paris U., VI-VII) ; Biolchini, Alice (Nikhef, Amsterdam) ; Birch, Matthew (Imperial Coll., London) ; Bishop, Fionn Caitlin Ros (Cambridge U.) ; Bitadze, Alexander (Manchester U.) ; Bizzeti, Andrea ; Bjørn, Mikkel (Oxford U.) ; Blago, Michele Piero (Cambridge U.) ; Blake, Thomas (Warwick U.) ; Blanc, Frederic (Ecole Polytechnique, Lausanne) ; Blusk, Steven (Syracuse U.) ; Bobulska, Dana (Glasgow U.) ; Boelhauve, Julian Alexander (Tech. U., Dortmund (main)) ; Boente Garcia, Oscar (U. Santiago de Compostela (main)) ; Boettcher, Thomas (Cincinnati U.) ; Boldyrev, Alexey ; Bondar, Nikolay (CERN) ; Borghi, Silvia (Manchester U.) ; Borsato, Martino (Heidelberg U.) ; Borsuk, Jozef Tomasz (Cracow, INP) ; Bouchiba, Sonia Amina (Ecole Polytechnique, Lausanne) ; Bowcock, Themistocles (Liverpool U. ; CERN) ; Boyer, Alexandre (CERN) ; Bozzi, Concezio (INFN, Ferrara) ; Bradley, Matthew John (Imperial Coll., London) ; Braun, Svende (Maryland U., College Park) ; Brea Rodriguez, Alexandre (U. Santiago de Compostela (main)) ; Brodzicka, Jolanta (Cracow, INP) ; Brossa Gonzalo, Arnau (Warwick U.) ; Brundu, Davide (INFN, Cagliari) ; Buonaura, Annarita (Zurich U.) ; Buonincontri, Laura (INFN, Padua) ; Burke, Aodhan Tomas (Manchester U.) ; Burr, Christopher (CERN) ; Bursche, Albert (South China Normal U.) ; Butkevich, Anatoly ; Butter, Jordy Sebastiaan (Nikhef, Amsterdam) ; Buytaert, Jan (CERN) ; Byczynski, Wiktor (CERN) ; Cadeddu, Sandro (INFN, Cagliari) ; Cai, Hao (Wuhan U.) ; Calabrese, Roberto (INFN, Ferrara ; Ferrara U.) ; Calefice, Lukas (Tech. U., Dortmund (main) ; Paris U., VI-VII) ; Cali, Stefano (Frascati) ; Calladine, Ryan (Birmingham U.) ; Calvi, Marta (INFN, Milan Bicocca ; Milan Bicocca U.) ; Calvo Gomez, Miriam (Ramon Llull U., Barcelona) ; Camargo Magalhaes, Patricia (Bristol U.) ; Campana, Pierluigi (Frascati) ; Campora Perez, Daniel Hugo (Maastricht U.) ; Campoverde Quezada, Angel Fernando (Beijing, GUCAS) ; Capelli, Simone (INFN, Milan Bicocca ; Milan Bicocca U.) ; Capriotti, Lorenzo (INFN, Bologna ; Bologna U.) ; Carbone, Angelo (INFN, Bologna ; Bologna U.) ; Carboni, Giovanni (Rome U., Tor Vergata) ; Cardinale, Roberta (INFN, Genoa ; Genoa U.) ; Cardini, Alessandro (INFN, Cagliari) ; Carli, Ina (Beijing, Inst. High Energy Phys.) ; Carniti, Paolo (INFN, Milan Bicocca ; Milan Bicocca U.) ; Carus, Leon David (Aachen, Tech. Hochsch.) ; Casais Vidal, Adrian (U. Santiago de Compostela (main)) ; Caspary, Rowina (Heidelberg U.) ; Casse, Gianluigi (Liverpool U.) ; Cattaneo, Marco (CERN) ; Cavallero, Giovanni (CERN) ; Cavallini, Viola (INFN, Ferrara ; Ferrara U.) ; Celani, Sara (Ecole Polytechnique, Lausanne) ; Cerasoli, Jacopo (Marseille, CPPM) ; Cervenkov, Daniel (Oxford U.) ; Chadwick, Abbie Jane (Liverpool U.) ; Chapman, Matthew George (Bristol U.) ; Charles, Matthew (Paris U., VI-VII) ; Charpentier, Philippe (CERN) ; Chavez Barajas, Carlos Alberto (Liverpool U.) ; Chefdeville, Maximilien (Annecy, LAPP) ; Chen, Chen (Tsinghua U., Beijing, CHEP) ; Chen, Shanzhen (Beijing, Inst. High Energy Phys.) ; Chernov, Aleksei (Cracow, INP) ; Chernyshenko, Serhii (Kiev, INR) ; Chobanova, Veronika (U. Santiago de Compostela (main)) ; Cholak, Serhii (Ecole Polytechnique, Lausanne) ; Chrzaszcz, Marcin (Cracow, INP) ; Chubykin, Aleksei ; Chulikov, Vladimir ; Ciambrone, Paolo (Frascati) ; Cicala, Maria Flavia (Warwick U.) ; Cid Vidal, Xabier (U. Santiago de Compostela (main)) ; Ciezarek, Gregory (CERN) ; Clarke, Peter (Edinburgh U.) ; Clemencic, Marco (CERN) ; Cliff, Harry (Cambridge U.) ; Closier, Joel (CERN) ; Cobbledick, John Leslie (Manchester U.) ; Coco, Victor (CERN) ; Coelho, Joao A.B. (IJCLab, Orsay) ; Cogan, Julien (Marseille, CPPM) ; Cogneras, Eric (Clermont-Ferrand U.) ; Cojocariu, Lucian (Bucharest, IFIN-HH) ; Collins, Paula (CERN) ; Colombo, Tommaso (CERN) ; Congedo, Liliana (INFN, Bari ; Bari U.) ; Contu, Andrea (INFN, Cagliari) ; Cooke, Naomi (Birmingham U.) ; Coombs, George (Glasgow U.) ; Corredoira, Imanol (U. Santiago de Compostela (main)) ; Corti, Gloria (CERN) ; Couturier, Benjamin (CERN) ; Craik, Daniel Charles (MIT) ; Crkovská, Jana (Los Alamos) ; Cruz Torres, Melissa Maria (Rio de Janeiro, CBPF) ; Currie, Robert (Edinburgh U.) ; Da Silva, Cesar Luiz (Los Alamos) ; Dadabaev, Shakhzod ; Dai, Lingyun (Hunan U.) ; Dall'Occo, Elena (Tech. U., Dortmund (main)) ; Dalseno, Jeremy (U. Santiago de Compostela (main)) ; D'Ambrosio, Carmelo (CERN) ; Danilina, Anna ; d'Argent, Philippe (Tech. U., Dortmund (main)) ; Davies, Jonathan Edward (Manchester U.) ; Davis, Adam (Manchester U.) ; De Aguiar Francisco, Oscar (Manchester U.) ; de Boer, Jan (CERN) ; De Bruyn, Kristof (U. Groningen, VSI) ; De Capua, Stefano (Manchester U.) ; De Cian, Michel (Ecole Polytechnique, Lausanne) ; De Freitas Carneiro Da Graca, Ulisses (Rio de Janeiro, CBPF) ; De Lucia, Erika (Frascati) ; De Miranda, Jussara (Rio de Janeiro, CBPF) ; De Paula, Leandro (Rio de Janeiro Federal U.) ; De Serio, Marilisa (INFN, Bari ; Bari U.) ; De Simone, Dario (Zurich U.) ; De Simone, Patrizia (Frascati) ; De Vellis, Fabio (Tech. U., Dortmund (main)) ; de Vries, Jacco (Maastricht U.) ; Dean, Cameron Thomas (Los Alamos) ; Debernardis, Francesco (INFN, Bari ; Bari U.) ; Decamp, Daniel (Annecy, LAPP) ; Dedu, Vlad-George (Marseille, CPPM) ; Del Buono, Luigi (Paris U., VI-VII) ; Delaney, Blaise (Cambridge U.) ; Dembinski, Hans Peter (Tech. U., Dortmund (main)) ; Denysenko, Vadym (Zurich U.) ; Deschamps, Olivier (Clermont-Ferrand U.) ; Dettori, Francesco (INFN, Cagliari ; Cagliari U.) ; Dey, Biplab (Eotvos U., Dept. Atomic Phys.) ; Di Cicco, Alessandro (Frascati) ; Di Nezza, Pasquale (Frascati) ; Didenko, Sergey ; Dieste Maronas, Lorena (U. Santiago de Compostela (main)) ; Ding, Shuchong (Syracuse U.) ; Dobishuk, Vasyl (Kiev, INR) ; Dolmatov, Aleksandr ; Dong, Chenzhi (Tsinghua U., Beijing, CHEP) ; Donohoe, Amanda May (University Coll., Dublin) ; Dordei, Francesca (INFN, Cagliari) ; dos Reis, Alberto (Rio de Janeiro, CBPF) ; Douglas, Lauren (Glasgow U.) ; Downes, Anthony Gavin (Annecy, LAPP) ; Dudek, Maciej Wojciech (Cracow, INP) ; Dufour, Laurent (CERN) ; Duk, Viacheslav (INFN, Perugia) ; Durante, Paolo (CERN) ; Durham, John Matthew (Los Alamos) ; Dutta, Deepanwita (Manchester U.) ; Dziurda, Agnieszka (Cracow, INP) ; Dzyuba, Alexey ; Easo, Sajan (Rutherford) ; Egede, Ulrik (Monash U.) ; Egorychev, Victor ; Eidelman, Semen ; Eisenhardt, Stephan (Edinburgh U.) ; Ek-In, Surapat (Ecole Polytechnique, Lausanne) ; Eklund, Lars ; Ely, Scott (Syracuse U.) ; Ene, Alexandru (Bucharest, IFIN-HH) ; Epple, Eliane (Los Alamos) ; Escher, Stephan (Aachen, Tech. Hochsch.) ; Eschle, Jonas Nathanael (Zurich U.) ; Esen, Sevda (Zurich U.) ; Evans, Timothy (Manchester U.) ; Falcao, Lucas (Rio de Janeiro, CBPF) ; Fan, Yanting (Beijing, GUCAS) ; Fang, Bo (Wuhan U.) ; Farry, Stephen (Liverpool U.) ; Fazzini, Davide (INFN, Milan Bicocca ; Milan Bicocca U.) ; Feo, Mauricio (CERN) ; Fernez, Alex Daniel (Maryland U., College Park) ; Ferrari, Fabio (INFN, Bologna) ; Ferreira Lopes, Lino (Ecole Polytechnique, Lausanne) ; Ferreira Rodrigues, Fernando (Rio de Janeiro Federal U.) ; Ferreres Sole, Silvia (Nikhef, Amsterdam) ; Ferrillo, Martina (Zurich U.) ; Ferro-Luzzi, Massimiliano (CERN) ; Filippov, Sergey ; Fini, Rosa Anna (INFN, Bari) ; Fiorini, Massimiliano (INFN, Ferrara ; Ferrara U.) ; Firlej, Miroslaw (AGH-UST, Cracow) ; Fischer, Kamil Leszek (Oxford U.) ; Fitzgerald, Dillon Scott (U. Michigan, Ann Arbor) ; Fitzpatrick, Conor (Manchester U.) ; Fiutowski, Tomasz (AGH-UST, Cracow) ; Fleuret, Frederic (Ecole Polytechnique) ; Fontana, Marianna (Paris U., VI-VII) ; Fontanelli, Flavio (INFN, Genoa ; Genoa U.) ; Forty, Roger (CERN) ; Foulds-Holt, Daniel (Cambridge U.) ; Franco Lima, Vinicius (Liverpool U.) ; Franco Sevilla, Manuel (Maryland U., College Park) ; Frank, Markus (CERN) ; Franzoso, Edoardo (INFN, Ferrara ; Ferrara U.) ; Frau, Giulia (Heidelberg U.) ; Frei, Christoph (CERN) ; Friday, David Anthony (Glasgow U.) ; Fu, Jinlin (Beijing, GUCAS) ; Fuehring, Quentin (Tech. U., Dortmund (main)) ; Gabriel, Emmy (Nikhef, Amsterdam) ; Galati, Giuliana (INFN, Bari ; Bari U.) ; Gallas Torreira, Abraham (U. Santiago de Compostela (main)) ; Galli, Domenico (INFN, Bologna ; Bologna U.) ; Gambetta, Silvia (Edinburgh U. ; CERN) ; Gan, Yuyue (Tsinghua U., Beijing, CHEP) ; Gandelman, Miriam (Rio de Janeiro Federal U.) ; Gandini, Paolo (INFN, Milan) ; Gao, Yuanning (Peking U., SKLNPT) ; Garau, Michela (INFN, Cagliari ; Cagliari U.) ; Garcia Martin, Luis Miguel (Warwick U.) ; Garcia Moreno, Paula (U. Barcelona (main)) ; García Pardiñas, Julián (INFN, Milan Bicocca ; Milan Bicocca U.) ; Garcia Plana, Beatriz (U. Santiago de Compostela (main)) ; Garcia Rosales, Felipe Andres (Ecole Polytechnique) ; Garrido, Lluis (U. Barcelona (main)) ; Gaspar, Clara (CERN) ; Geertsema, Robbert Erik (Nikhef, Amsterdam) ; Gerick, David (Heidelberg U.) ; Gerken, Louis Lenard (Tech. U., Dortmund (main)) ; Gersabeck, Evelina (Manchester U.) ; Gersabeck, Marco (Manchester U.) ; Gershon, Timothy (Warwick U.) ; Giambastiani, Luca (INFN, Padua) ; Gibson, Valerie (Cambridge U.) ; Giemza, Henryk Karol (NCBJ, Swierk) ; Gilman, Alexander Leon (Oxford U.) ; Giovannetti, Matteo (Frascati ; Rome U., Tor Vergata) ; Gioventù, Alessandra (U. Santiago de Compostela (main)) ; Gironella Gironell, Pere (U. Barcelona (main)) ; Giugliano, Carmen (INFN, Ferrara ; Ferrara U.) ; Gizdov, Konstantin (Edinburgh U.) ; Gkougkousis, Evangelos Leonidas (CERN) ; Gligorov, Vladimir (Paris U., VI-VII ; CERN) ; Göbel, Carla (Rio de Janeiro, Pont. U. Catol.) ; Golobardes, Elisabet (Ramon Llull U., Barcelona) ; Golubkov, Dmitry ; Golutvin, Andrey (Imperial Coll., London) ; Gomes, Alvaro (Rio de Janeiro, CBPF ; Rio de Janeiro Federal U. ; UFTM, Uberaba) ; Gomez Fernandez, Sergio (U. Barcelona (main)) ; Goncalves Abrantes, Fernanda (Oxford U.) ; Goncerz, Mateusz (Cracow, INP) ; Gong, Guanghua (Tsinghua U., Beijing, CHEP) ; Gorelov, Igor Vladimirovich ; Gotti, Claudio (INFN, Milan Bicocca) ; Grabowski, Jascha Peter (Heidelberg U.) ; Grammatico, Thomas (Paris U., VI-VII) ; Granado Cardoso, Luis Alberto (CERN) ; Graugés, Eugeni (U. Barcelona (main)) ; Graverini, Elena (Ecole Polytechnique, Lausanne) ; Graziani, Giacomo ; Grecu, Alexandru Tudor (Bucharest, IFIN-HH) ; Greeven, Lex Marinus (Nikhef, Amsterdam) ; Grieser, Nathan Allen (Beijing, Inst. High Energy Phys.) ; Grillo, Lucia (Glasgow U.) ; Gromov, Sergey ; Gruberg Cazon, Barak Raimond (Oxford U.) ; Gu, Chenxi (Tsinghua U., Beijing, CHEP) ; Guarise, Marco (INFN, Ferrara ; Ferrara U.) ; Guittiere, Manuel (IJCLab, Orsay) ; Günther, Paul Andre (Heidelberg U.) ; Gushchin, Evgeny ; Guth, Andreas (Aachen, Tech. Hochsch.) ; Guz, Yury ; Gys, Thierry (CERN) ; Hadavizadeh, Thomas (Monash U.) ; Haefeli, Guido (Ecole Polytechnique, Lausanne) ; Haen, Christophe (CERN) ; Haimberger, Jakob (CERN) ; Haines, Susan (Cambridge U.) ; Halewood-leagas, Tabitha (Liverpool U.) ; Halvorsen, Marius Maehlum (CERN) ; Hamilton, Phoebe Meredith (Maryland U., College Park) ; Hammerich, Jan (Liverpool U.) ; Han, Qundong (CCNU, Wuhan, Inst. Part. Phys.) ; Han, Xiaoxue (Heidelberg U.) ; Hansen, Eva Brottmann (Manchester U.) ; Hansmann-Menzemer, Stephanie (Heidelberg U. ; CERN) ; Hao, Lei (Beijing, GUCAS) ; Harnew, Neville (Oxford U.) ; Harrison, Thomas (Liverpool U.) ; Hasse, Christoph (CERN) ; Hatch, Mark (CERN) ; He, Jibo (Beijing, GUCAS) ; Heijhoff, Kevin (Nikhef, Amsterdam) ; Heinicke, Kevin (Tech. U., Dortmund (main)) ; Henderson, Riley Dylan Leslie (Monash U. ; Warwick U.) ; Hennequin, Arthur Marius (MIT) ; Hennessy, Karol (Liverpool U.) ; Henry, Louis (CERN) ; Heuel, Johannes (Aachen, Tech. Hochsch.) ; Hicheur, Adlène (Rio de Janeiro Federal U.) ; Hill, Donal (Ecole Polytechnique, Lausanne) ; Hilton, Martha (Manchester U.) ; Hollitt, Sophie (Tech. U., Dortmund (main)) ; Hou, Ruiwen (CCNU, Wuhan, Inst. Part. Phys.) ; Hou, Yingrui (Annecy, LAPP) ; Hu, Jiangqiao (Heidelberg U.) ; Hu, Jifeng (South China Normal U.) ; Hu, Wenhua (CCNU, Wuhan, Inst. Part. Phys.) ; Hu, Xiaofan (Tsinghua U., Beijing, CHEP) ; Huang, Wenqian (Beijing, GUCAS) ; Huang, Xiaotao (Wuhan U.) ; Hulsbergen, Wouter (Nikhef, Amsterdam) ; Hunter, Ross John (Warwick U.) ; Hushchyn, Mikhail ; Hutchcroft, David (Liverpool U.) ; Ibis, Philipp (Tech. U., Dortmund (main)) ; Idzik, Marek (AGH-UST, Cracow) ; Ilin, Dmitrii ; Ilten, Philip (Cincinnati U.) ; Inglessi, Alexander ; Iniukhin, Aleksandr ; Ishteev, Artur ; Ivshin, Kuzma ; Jacobsson, Richard (CERN) ; Jage, Hendrik (Aachen, Tech. Hochsch.) ; Jakobsen, Sune (CERN) ; Jans, Eddy (Nikhef, Amsterdam) ; Jashal, Brij Kishor (Valencia U., IFIC) ; Jawahery, Abolhassan (Maryland U., College Park) ; Jevtic, Vukan (Tech. U., Dortmund (main)) ; Jiang, Xiaojie (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; John, Malcolm (Oxford U.) ; Johnson, Daniel (MIT) ; Jones, Christopher (Cambridge U.) ; Jones, Thomas Peter (Warwick U.) ; Jost, Beat (CERN) ; Jurik, Nathan (CERN) ; Kandybei, Sergii (Kharkov, KIPT) ; Kang, Youen (Tsinghua U., Beijing, CHEP) ; Karacson, Matthias (CERN) ; Karpenkov, Dmitrii ; Karpov, Maksim ; Kautz, Jacob William (Cincinnati U.) ; Keizer, Floris (CERN) ; Keller, Dustin Michael (Syracuse U.) ; Kenzie, Matthew (Warwick U.) ; Ketel, Tjeerd (NIKHEF, Amsterdam + Vrije U., Amsterdam) ; Khanji, Basem (Tech. U., Dortmund (main)) ; Kharisova, Anastasiia ; Kholodenko, Sergei ; Kirn, Thomas (Aachen, Tech. Hochsch.) ; Kirsebom, Veronica Soelund (Ecole Polytechnique, Lausanne) ; Kitouni, Ouail (MIT) ; Klaver, Suzanne (NIKHEF, Amsterdam + Vrije U., Amsterdam) ; Kleijne, Nico (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Klimaszewski, Konrad (NCBJ, Swierk) ; Kmiec, Mateusz Rafal (NCBJ, Swierk) ; Koliiev, Serhii (Kiev, INR) ; Kondybayeva, Almagul ; Konoplyannikov, Anatoly ; Kopciewicz, Pawel (AGH-UST, Cracow) ; Kopecna, Renata (Heidelberg U.) ; Koppenburg, Patrick (Nikhef, Amsterdam) ; Korolev, Mikhail ; Kostiuk, Igor (Nikhef, Amsterdam ; Kiev, INR) ; Kot, Oleksander (Kiev, INR) ; Kotriakhova, Sofia ; Kozachuk, Anastasiia ; Kravchenko, Polina ; Kravchuk, Leonid ; Krawczyk, Rafal Dominik (CERN) ; Kreps, Michal (Warwick U.) ; Kretzschmar, Sophie Katharina (Aachen, Tech. Hochsch.) ; Krokovny, Pavel ; Krupa, Wojciech (AGH-UST, Cracow) ; Krzemien, Wojciech (NCBJ, Swierk) ; Kubat, Jakub (Heidelberg U.) ; Kucewicz, Wojciech (Cracow, INP ; AGH-UST, Cracow) ; Kucharczyk, Marcin (Cracow, INP) ; Kudryavtsev, Vasily ; Kuindersma, Hilbrand Steffen (Nikhef, Amsterdam) ; Kunde, Gerd Joachim (Los Alamos) ; Lacarrere, Daniel (CERN) ; Lafferty, George (Manchester U.) ; Lai, Adriano (INFN, Cagliari) ; Lampis, Andrea (INFN, Cagliari ; Cagliari U.) ; Lancierini, Davide (Zurich U.) ; Lane, John Jake (Manchester U.) ; Lane, Richard (Bristol U.) ; Lanfranchi, Gaia (Frascati) ; Langenbruch, Christoph (Aachen, Tech. Hochsch.) ; Langer, Jan (Tech. U., Dortmund (main)) ; Lantwin, Oliver ; Latham, Thomas (Warwick U.) ; Lazzari, Federico (INFN, Pisa ; U. Siena (main)) ; Lazzaroni, Massimo (INFN, Milan ; U. Milan (main)) ; Le Gac, Renaud (Marseille, CPPM) ; Lee, Sook Hyun (U. Michigan, Ann Arbor) ; Lefèvre, Regis (Clermont-Ferrand U.) ; Leflat, Alexander ; Legotin, Sergey ; Leroy, Olivier (Marseille, CPPM) ; Lesiak, Tadeusz (Cracow, INP) ; Leverington, Blake (Heidelberg U.) ; Li, Hengne (South China Normal U.) ; Li, Kechen (CCNU, Wuhan, Inst. Part. Phys.) ; Li, Peilian (Heidelberg U.) ; Li, Shiyang (CCNU, Wuhan, Inst. Part. Phys.) ; Li, Yiming (Beijing, Inst. High Energy Phys.) ; Li, Zhuoming (Syracuse U.) ; Liang, Xixin (Syracuse U.) ; Lin, Chuangxin (Beijing, GUCAS) ; Lin, Tai-hua (Imperial Coll., London) ; Lindner, Rolf (CERN) ; Lisovskyi, Vitalii (Tech. U., Dortmund (main)) ; Litvinov, Roman (INFN, Cagliari ; Cagliari U.) ; Liu, Guoming (South China Normal U.) ; Liu, Huanhuan (Beijing, GUCAS) ; Liu, Qian (Beijing, GUCAS) ; Liu, Shuaiyi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Lobo Salvia, Aniol (U. Barcelona (main)) ; Loi, Angelo (INFN, Cagliari) ; Lollini, Riccardo (INFN, Perugia) ; Lomba Castro, Julian (U. Santiago de Compostela (main)) ; Longstaff, Iain (Glasgow U.) ; Lopes, Jose (Rio de Janeiro Federal U.) ; López Soliño, Saúl (U. Santiago de Compostela (main)) ; Lovell, George Holger (Cambridge U.) ; Lu, Yu (Beijing, Inst. High Energy Phys.) ; Lucarelli, Chiara (INFN, Florence ; Florence U.) ; Lucchesi, Donatella (INFN, Padua ; U. Padua (main)) ; Luchuk, Stanislav ; Lucio Martinez, Miriam (Nikhef, Amsterdam) ; Lukashenko, Valeriia (Nikhef, Amsterdam ; Kiev, INR) ; Luo, Yiheng (Tsinghua U., Beijing, CHEP) ; Lupato, Anna (Manchester U.) ; Luppi, Eleonora (INFN, Ferrara ; Ferrara U.) ; Lusiani, Alberto (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Lynch, Kate (University Coll., Dublin) ; Lyu, Xiao-Rui (Beijing, GUCAS) ; Ma, Lishuang (Beijing, Inst. High Energy Phys.) ; Ma, Ruiting (Beijing, GUCAS) ; Maccolini, Serena (INFN, Bologna) ; Machefert, Frederic (IJCLab, Orsay) ; Maciuc, Florin (Bucharest, IFIN-HH) ; Macko, Vladimir (Ecole Polytechnique, Lausanne) ; Mackowiak, Patrick (Tech. U., Dortmund (main)) ; Maddrell-Mander, Samuel (Bristol U.) ; Madhan Mohan, Lakshan Ram (Bristol U.) ; Maevskiy, Artem ; Maisuzenko, Dmitrii ; Majewski, Maciej Witold (AGH-UST, Cracow) ; Malczewski, Jakub Jacek (Cracow, INP) ; Malde, Sneha (Oxford U.) ; Malecki, Bartosz (Cracow, INP) ; Malinin, Alexander ; Maltsev, Timofei ; Malygina, Hanna (Heidelberg U.) ; Manca, Giulia (INFN, Cagliari ; Cagliari U.) ; Mancinelli, Giampiero (Marseille, CPPM) ; Manuzzi, Daniele (INFN, Bologna) ; Manzari, Claudio Andrea (Zurich U.) ; Marangotto, Daniele (INFN, Milan ; U. Milan (main)) ; Marchand, Jean François (Annecy, LAPP) ; Marconi, Umberto (INFN, Bologna) ; Mariani, Saverio (INFN, Florence ; Florence U.) ; Marin Benito, Carla (CERN) ; Marinangeli, Matthieu (Ecole Polytechnique, Lausanne) ; Marks, Jörg (Heidelberg U.) ; Marshall, Alexander Mclean (Bristol U.) ; Marshall, Phillip John (Liverpool U.) ; Martelli, Gabriele (INFN, Perugia) ; Martellotti, Giuseppe (INFN, Rome) ; Martinazzoli, Loris (CERN ; Milan Bicocca U.) ; Martinelli, Maurizio (INFN, Milan Bicocca ; Milan Bicocca U.) ; Martinez Santos, Diego (U. Santiago de Compostela (main)) ; Martinez Vidal, Fernando (Valencia U., IFIC) ; Massafferri, André (Rio de Janeiro, CBPF) ; Materok, Marcel (Aachen, Tech. Hochsch.) ; Matev, Rosen (CERN) ; Mathad, Abhijit (Zurich U.) ; Matiunin, Viacheslav ; Matteuzzi, Clara (INFN, Milan Bicocca) ; Mattioli, Kara Renee (U. Michigan, Ann Arbor) ; Mauri, Andrea (Nikhef, Amsterdam) ; Maurice, Emilie (Ecole Polytechnique) ; Mauricio, Joan (U. Barcelona (main)) ; Mazurek, Michal (CERN) ; McCann, Michael (Imperial Coll., London) ; Mcconnell, Lucas (University Coll., Dublin) ; McGrath, Tamaki Holly (Manchester U.) ; McHugh, Niall Thomas (Glasgow U.) ; McNab, Andrew (Manchester U.) ; McNulty, Ronan (University Coll., Dublin) ; Mead, James Vincent (Liverpool U.) ; Meadows, Brian (Cincinnati U.) ; Meier, Gerwin (Tech. U., Dortmund (main)) ; Melnychuk, Dmytro (NCBJ, Swierk) ; Meloni, Simone (INFN, Milan Bicocca ; Milan Bicocca U.) ; Merk, Marcel (Nikhef, Amsterdam ; Maastricht U.) ; Merli, Andrea (INFN, Milan ; U. Milan (main)) ; Meyer Garcia, Lucas (Rio de Janeiro Federal U.) ; Mikhasenko, Mikhail (Bonn U., HISKP ; ORIGINS, Garching) ; Milanes, Diego Alejandro (Colombia, U. Natl.) ; Millard, Edward James (Warwick U.) ; Milovanovic, Marko (CERN) ; Minard, Marie-Noelle (Annecy, LAPP) ; Minotti, Alessandro (INFN, Milan Bicocca ; Milan Bicocca U.) ; Mitchell, Sara Elizabeth (Edinburgh U.) ; Mitreska, Biljana (Manchester U.) ; Mitzel, Dominik Stefan (Tech. U., Dortmund (main)) ; Mödden, Antje (Tech. U., Dortmund (main)) ; Mohammed, Rizwaan Adeeb (Oxford U.) ; Moise, Razvan-Daniel (Imperial Coll., London) ; Mokhnenko, Sergei ; Mombächer, Titus (U. Santiago de Compostela (main)) ; Monroy, Igancio Alberto (Colombia, U. Natl.) ; Monteil, Stephane (Clermont-Ferrand U.) ; Morandin, Mauro (INFN, Padua) ; Morello, Gianfranco (Frascati) ; Morello, Michael Joseph (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Moron, Jakub (AGH-UST, Cracow) ; Morris, Adam Benjamin (Bonn U., HISKP) ; Morris, Andrew George (Warwick U.) ; Mountain, Raymond (Syracuse U.) ; Mu, Hongjie (Tsinghua U., Beijing, CHEP) ; Muheim, Franz (Edinburgh U.) ; Mulder, Mick (U. Groningen, VSI) ; Müller, Katharina (Zurich U.) ; Murphy, Colm Harold (Oxford U.) ; Murray, Donal (Manchester U.) ; Murta, Rebecca (Imperial Coll., London) ; Muzzetto, Piera (INFN, Cagliari ; Cagliari U.) ; Naik, Paras (Bristol U.) ; Nakada, Tatsuya (Ecole Polytechnique, Lausanne) ; Nandakumar, Raja (Rutherford) ; Nanut, Tara (CERN) ; Nasteva, Irina (Rio de Janeiro Federal U.) ; Needham, Matthew (Edinburgh U.) ; Neri, Nicola (INFN, Milan ; U. Milan (main)) ; Neubert, Sebastian (Bonn U., HISKP) ; Neufeld, Niko (CERN) ; Neustroev, Petr ; Newcombe, Ryan (Imperial Coll., London) ; Niel, Elisabeth Maria (Ecole Polytechnique, Lausanne) ; Nieswand, Simon (Aachen, Tech. Hochsch.) ; Nikitin, Nikolay ; Nolte, Niklas Stefan (MIT) ; Normand, Camille (Annecy, LAPP ; INFN, Cagliari ; Cagliari U.) ; Nunez, Cynthia (U. Michigan, Ann Arbor) ; Oblakowska-Mucha, Agnieszka (AGH-UST, Cracow) ; Obraztsov, Vladimir ; Oeser, Thomas (Aachen, Tech. Hochsch.) ; O'Hanlon, Daniel Patrick (Bristol U.) ; Okamura, Shinichi (INFN, Ferrara ; Ferrara U.) ; Oldeman, Rudolf (INFN, Cagliari ; Cagliari U.) ; Oliva, Federica (Edinburgh U.) ; Olivares, Mario Edgardo (Syracuse U.) ; Onderwater, Gerco (U. Groningen, VSI) ; O'Neil, Ryunosuke Hugo (Edinburgh U.) ; Otalora Goicochea, Juan Martin (Rio de Janeiro Federal U.) ; Ovsiannikova, Tatiana ; Owen, Patrick (Zurich U.) ; Oyanguren, Maria Aranzazu (Valencia U., IFIC) ; Ozcelik, Ozlem (Edinburgh U.) ; Padeken, Klaas Ole (Bonn U., HISKP) ; Pagare, Bhagyashree (Warwick U.) ; Pais, Preema Rennee (CERN) ; Pajero, Tommaso (Oxford U.) ; Palano, Antimo (INFN, Bari) ; Palutan, Matteo (Frascati) ; Pan, Yue (Manchester U.) ; Panshin, Gennady ; Papanestis, Antonios (Rutherford) ; Pappagallo, Marco (INFN, Bari ; Bari U.) ; Pappalardo, Luciano (INFN, Ferrara ; Ferrara U.) ; Pappenheimer, Cheryl (Cincinnati U.) ; Parker, William (Maryland U., College Park) ; Parkes, Christopher (Manchester U. ; CERN) ; Passalacqua, Barbara (INFN, Ferrara ; Ferrara U.) ; Passaleva, Giovanni (INFN, Florence) ; Pastore, Alessandra (INFN, Bari) ; Patel, Mitesh (Imperial Coll., London) ; Patrignani, Claudia (INFN, Bologna ; Bologna U.) ; Pawley, Christopher James (Maastricht U.) ; Pearce, Alex (CERN) ; Pellegrino, Antonio (Nikhef, Amsterdam) ; Pepe Altarelli, Monica (CERN) ; Perazzini, Stefano (INFN, Bologna) ; Pereima, Dmitrii ; Pereiro Castro, Asier (U. Santiago de Compostela (main)) ; Perret, Pascal (Clermont-Ferrand U.) ; Petric, Marko (Glasgow U.) ; Petridis, Konstantinos (Bristol U.) ; Petrolini, Alessandro (INFN, Genoa ; Genoa U.) ; Petrov, Aleksandr ; Petrucci, Stefano (Edinburgh U.) ; Petruzzo, Marco (INFN, Milan) ; Pham, Hang (Syracuse U.) ; Philippov, Anton ; Piandani, Roberto (Beijing, GUCAS) ; Pica, Lorenzo (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Piccini, Mauro (INFN, Perugia) ; Pietrzyk, Boleslaw (Annecy, LAPP) ; Pietrzyk, Guillaume (IJCLab, Orsay) ; Pili, Martina (Oxford U.) ; Pinci, Davide (INFN, Rome) ; Pisani, Flavio (CERN) ; Pizzichemi, Marco (INFN, Milan Bicocca ; CERN ; Milan Bicocca U.) ; Placinta, Vlad-Mihai (Bucharest, IFIN-HH) ; Plews, Jonathan (Birmingham U.) ; Plo Casasus, Maximo (U. Santiago de Compostela (main)) ; Polci, Francesco (Paris U., VI-VII ; CERN) ; Poli Lener, Marco (Frascati) ; Poliakova, Mariia (Syracuse U.) ; Poluektov, Anton (Marseille, CPPM) ; Polukhina, Natalia ; Polyakov, Ivan (Syracuse U.) ; Polycarpo, Erica (Rio de Janeiro Federal U.) ; Ponce, Sebastien (CERN) ; Popov, Dmitry (Beijing, GUCAS ; CERN) ; Popov, Sergei ; Poslavskii, Stanislav ; Prasanth, Kodassery (Cracow, INP) ; Promberger, Laura (CERN) ; Prouve, Claire (U. Santiago de Compostela (main)) ; Pugatch, Valery (Kiev, INR) ; Puill, Veronique (IJCLab, Orsay) ; Punzi, Giovanni (INFN, Pisa ; U. Pisa (main)) ; Qi, Hongrong (Tsinghua U., Beijing, CHEP) ; Qian, Wenbin (Beijing, GUCAS) ; Qin, Ning (Tsinghua U., Beijing, CHEP) ; Qu, Sanqiang (Tsinghua U., Beijing, CHEP) ; Quagliani, Renato (Ecole Polytechnique, Lausanne) ; Raab, Naomi Veronika (University Coll., Dublin) ; Rabadan Trejo, Raul Iraq (Beijing, GUCAS) ; Rachwal, Bartlomiej (AGH-UST, Cracow) ; Rademacker, Jonas (Bristol U.) ; Rajagopalan, Rohan (Syracuse U.) ; Rama, Matteo (INFN, Pisa) ; Ramos Pernas, Miguel (Warwick U.) ; Rangel, Murilo (Rio de Janeiro Federal U.) ; Ratnikov, Fedor ; Raven, Gerhard (NIKHEF, Amsterdam + Vrije U., Amsterdam ; CERN) ; Rebollo De Miguel, Miguel (Valencia U., IFIC) ; Reboud, Meril (Annecy, LAPP) ; Redi, Federico (CERN) ; Reiss, Florian (Manchester U.) ; Remon Alepuz, Clara (Valencia U., IFIC) ; Ren, Zan (Tsinghua U., Beijing, CHEP) ; Renaudin, Victor (Oxford U.) ; Resmi, P.K. (Marseille, CPPM) ; Ribatti, Roberto (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Ricci, Alessandro Maria (INFN, Cagliari) ; Ricciardi, Stefania (Rutherford) ; Rinnert, Kurt (Liverpool U.) ; Robbe, Patrick (IJCLab, Orsay) ; Robertson, Gary (Edinburgh U.) ; Rodrigues, Ana Barbara (Ecole Polytechnique, Lausanne) ; Rodrigues, Eduardo (Liverpool U.) ; Rodriguez Lopez, Jairo Alexis (Colombia, U. Natl.) ; Rodriguez Rodriguez, Efren (U. Santiago de Compostela (main)) ; Rollings, Alexandra Paige (Oxford U.) ; Roloff, Philipp (CERN) ; Romanovskiy, Vladimir ; Romero Lamas, Marcos (U. Santiago de Compostela (main)) ; Romero Vidal, Antonio (U. Santiago de Compostela (main)) ; Roth, Jordan Daniel (U. Michigan, Ann Arbor) ; Rotondo, Marcello (Frascati) ; Rudolph, Matthew Scott (Syracuse U.) ; Ruf, Thomas (CERN) ; Ruiz Fernandez, Ramon Angel (U. Santiago de Compostela (main)) ; Ruiz Vidal, Joan (Valencia U., IFIC) ; Ryzhikov, Artem ; Ryzka, Jakub (AGH-UST, Cracow) ; Saborido Silva, Juan Jose (U. Santiago de Compostela (main)) ; Sagidova, Naylya ; Sahoo, Niladribihari (Birmingham U.) ; Saitta, Biagio (INFN, Cagliari ; Cagliari U.) ; Salomoni, Matteo (CERN) ; Sanchez Gras, Cristina (Nikhef, Amsterdam) ; Sanderswood, Izaac (Valencia U., IFIC) ; Santacesaria, Roberta (INFN, Rome) ; Santamarina Rios, Cibran (U. Santiago de Compostela (main)) ; Santimaria, Marco (Frascati) ; Santovetti, Emanuele (Rome U., Tor Vergata) ; Saranin, Danila ; Sarpis, Gediminas (Aachen, Tech. Hochsch.) ; Sarpis, Mindaugas (Bonn U., HISKP) ; Sarti, Alessio (INFN, Rome) ; Satriano, Celestina (INFN, Rome ; Basilicata U., Potenza) ; Satta, Alessia (Rome U., Tor Vergata) ; Saur, Miroslav (Tech. U., Dortmund (main)) ; Savrina, Darya ; Sazak, Halime (Clermont-Ferrand U.) ; Scantlebury Smead, Luke George (Oxford U.) ; Scarabotto, Alessandro (Paris U., VI-VII) ; Schael, Stefan (Aachen, Tech. Hochsch.) ; Scherl, Sigrid (Liverpool U.) ; Schiller, Manuel (Glasgow U.) ; Schindler, Heinrich (CERN) ; Schmelling, Michael (Heidelberg, Max Planck Inst.) ; Schmidt, Burkhard (CERN) ; Schmitt, Sebastian (Aachen, Tech. Hochsch.) ; Schneider, Olivier (Ecole Polytechnique, Lausanne) ; Schopper, Andreas (CERN) ; Schubiger, Maxime (Nikhef, Amsterdam) ; Schulte, Sebastian (Ecole Polytechnique, Lausanne) ; Schune, Marie Helene (IJCLab, Orsay) ; Schwemmer, Rainer (CERN) ; Sciascia, Barbara (Frascati ; CERN) ; Sciuccati, Augusto (CERN) ; Sellam, Sara (U. Santiago de Compostela (main)) ; Semennikov, Alexander ; Senghi Soares, Mara (NIKHEF, Amsterdam + Vrije U., Amsterdam) ; Sergi, Antonino (INFN, Genoa ; Genoa U.) ; Serra, Nicola (Zurich U.) ; Sestini, Lorenzo (INFN, Padua) ; Seuthe, Alex (Tech. U., Dortmund (main)) ; Shang, Yiduo (Peking U., SKLNPT) ; Shangase, Desmond Mzamo (U. Michigan, Ann Arbor) ; Shapkin, Mikhail ; Shchemerov, Ivan ; Shchutska, Lesya (Ecole Polytechnique, Lausanne) ; Shears, Tara (Liverpool U.) ; Shekhtman, Lev ; Shen, Zhihong (Peking U., SKLNPT) ; Sheng, Shuqi (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Shevchenko, Vladimir ; Shields, Edward Brendan (INFN, Milan Bicocca ; Milan Bicocca U.) ; Shimizu, Yuya (IJCLab, Orsay) ; Shmanin, Evgenii ; Shupperd, Joseph David (Syracuse U.) ; Siddi, Benedetto Gianluca (INFN, Ferrara ; Ferrara U.) ; Silva Coutinho, Rafael (Zurich U.) ; Simi, Gabriele (INFN, Padua) ; Simone, Saverio (INFN, Bari ; Bari U.) ; Singla, Minni (Monash U.) ; Skidmore, Nicola (Manchester U.) ; Skuza, Raphael (Heidelberg U.) ; Skwarnicki, Tomasz (Syracuse U.) ; Slater, Mark (Birmingham U.) ; Slazyk, Igor (INFN, Ferrara ; Ferrara U.) ; Smallwood, Jennifer Clare (Oxford U.) ; Smeaton, John Gordon (Cambridge U.) ; Smith, Eluned (Zurich U.) ; Smith, Mark (Imperial Coll., London) ; Snoch, Aleksandra (Nikhef, Amsterdam) ; Soares Lavra, Lais (Clermont-Ferrand U.) ; Sokoloff, Michael (Cincinnati U.) ; Soler, Paul (Glasgow U.) ; Solomin, Anatoly (Bristol U.) ; Solovev, Aleksandr ; Solovyev, Ivan ; Souza De Almeida, Felipe Luan (Rio de Janeiro Federal U.) ; Souza De Paula, Bruno (Rio de Janeiro Federal U.) ; Spaan, Bernhard (Tech. 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High Energy Phys.) ; Tomassetti, Luca (INFN, Ferrara ; Ferrara U.) ; Tong, Xingyu (Peking U., SKLNPT) ; Torres Machado, Diego (Rio de Janeiro, CBPF) ; Tou, Da Yu (Tsinghua U., Beijing, CHEP) ; Trifonova, Ekaterina ; Trilov, Stoyan Miroslavov (Bristol U.) ; Trippl, Carina (Ecole Polytechnique, Lausanne) ; Tuci, Giulia (Beijing, GUCAS) ; Tully, Alison (Ecole Polytechnique, Lausanne) ; Tuning, Niels (Nikhef, Amsterdam ; CERN) ; Ukleja, Artur (NCBJ, Swierk) ; Unverzagt, Daniel Joachim (Heidelberg U.) ; Ursov, Eduard ; Usachov, Andrii (Nikhef, Amsterdam) ; Ustyuzhanin, Andrey ; Uwer, Ulrich (Heidelberg U.) ; Vagner, Alexander ; Vagnoni, Vincenzo (INFN, Bologna) ; Valassi, Andrea (CERN) ; Valenti, Giovanni (INFN, Bologna) ; Valls Canudas, Nuria (Ramon Llull U., Barcelona) ; van Beuzekom, Martinus (Nikhef, Amsterdam) ; Van Dijk, Maarten (Ecole Polytechnique, Lausanne) ; Van Hecke, Hubert (Los Alamos) ; van Herwijnen, Eric ; van Veghel, Maarten (U. Groningen, VSI) ; Vazquez Gomez, Ricardo (U. 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High Energy Phys.) ; Wang, Jianqiao (Tsinghua U., Beijing, CHEP) ; Wang, Jike (Wuhan U.) ; Wang, Mengzhen (Peking U., SKLNPT) ; Wang, Rui (Bristol U.) ; Wang, Yilong (CCNU, Wuhan, Inst. Part. Phys.) ; Wang, Zhenzi (Zurich U.) ; Wang, Zirui (Tsinghua U., Beijing, CHEP) ; Wang, Ziyi (Beijing, GUCAS) ; Ward, Jake Alexander (Warwick U. ; Monash U.) ; Watson, Nigel (Birmingham U.) ; Websdale, David (Imperial Coll., London) ; Weisser, Constantin (MIT) ; Westhenry, Benedict Donald C. (Bristol U.) ; White, Dylan Jaide (Manchester U.) ; Whitehead, Mark (Glasgow U.) ; Wiederhold, Aidan Richard (Warwick U.) ; Wiedner, Dirk (Tech. U., Dortmund (main)) ; Wilkinson, Guy (Oxford U.) ; Wilkinson, Michael K. 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Phys.) ; Xu, Ao (Peking U., SKLNPT) ; Xu, Jingyi (Beijing, GUCAS) ; Xu, Li (Tsinghua U., Beijing, CHEP) ; Xu, Menglin (Warwick U.) ; Xu, Qingnian (Beijing, GUCAS) ; Xu, Zehua (Clermont-Ferrand U.) ; Xu, Zhihao (Beijing, GUCAS) ; Yang, Di (Tsinghua U., Beijing, CHEP) ; Yang, Shuangli (Beijing, GUCAS) ; Yang, Youhua (Beijing, GUCAS) ; Yang, Zhenwei (Peking U., SKLNPT) ; Yang, Zishuo (Maryland U., College Park) ; Yao, Yuezhe (Syracuse U.) ; Yeomans, Lauren Emma (Liverpool U.) ; Yin, Hang (CCNU, Wuhan, Inst. Part. Phys.) ; Yu, Jiesheng (Hunan U.) ; Yuan, Xuhao (Syracuse U.) ; Zaffaroni, Ettore (Ecole Polytechnique, Lausanne) ; Zavertyaev, Mikhail (Heidelberg, Max Planck Inst.) ; Zdybal, Milosz (Cracow, INP) ; Zenaiev, Oleksandr (CERN) ; Zeng, Ming (Tsinghua U., Beijing, CHEP) ; Zhang, Dongliang (CCNU, Wuhan, Inst. Part. Phys.) ; Zhang, Liming (Tsinghua U., Beijing, CHEP) ; Zhang, Shulei (Hunan U.) ; Zhang, Shunan (Peking U., SKLNPT) ; Zhang, Yanxi (Peking U., SKLNPT) ; Zhang, Yu (Oxford U.) ; Zharkova, Alina ; Zhelezov, Alexey (Heidelberg U.) ; Zheng, Yangheng (Beijing, GUCAS) ; Zhou, Tianwen (Peking U., SKLNPT) ; Zhou, Xiaokang (Beijing, GUCAS) ; Zhou, Yixiong (Beijing, GUCAS) ; Zhovkovska, Valeriia (IJCLab, Orsay) ; Zhu, Xianglei (Tsinghua U., Beijing, CHEP) ; Zhu, Xiaoyu (CCNU, Wuhan, Inst. Part. Phys.) ; Zhu, Zhanwen (Beijing, GUCAS) ; Zhukov, Valery (Aachen, Tech. Hochsch.) ; Zou, Quan (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zucchelli, Stefano (INFN, Bologna ; Bologna U.) ; Zuliani, Davide (INFN, Padua) ; Zunica, Gianluca (Manchester U.)

Corporate Author(s) LHCb Collaboration
Publication 2023-08
Imprint 28 Apr 2022
Number of pages 11
Note All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-001.html (LHCb public pages)
In: Phys. Rev. Lett. 131 (2023) 061901
DOI 10.1103/PhysRevLett.131.061901 (publication)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords QCD
Abstract The production rate of $B^{0}_{s}$ mesons relative to $B^{0}$ mesons is measured by the LHCb experiment in $pp$ collisions at a center-of-mass energy $\sqrt{s} = 13$ TeV over the forward rapidity interval $2 < y < 4.5$ as a function of the charged particle multiplicity measured in the event. Evidence at the 3.4$\sigma$ level is found for an increase of the ratio of $B^{0}_{s}$ to $B^{0}$ cross-sections with multiplicity at transverse momenta below 6 GeV/$c$, with no significant multiplicity dependence at higher transverse momentum. Comparison with data from $e^{+}e^{-}$ collisions implies that the density of the hadronic medium may affect the production rates of $B$ mesons. This is qualitatively consistent with the emergence of quark coalescence as an additional hadronization mechanism in high-multiplicity collisions.
Copyright/License Publication: © 2023-2024 CERN (License: CC-BY-4.0), sponsored by SCOAP³
Preprint: © 2022-2024 CERN (License: CC-BY-4.0)



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