CERN Accelerating science

Article
Report number arXiv:1503.07138 ; LHCB-PAPER-2015-009 ; CERN-PH-EP-2015-078 ; LHCB-PAPER-2015-009 ; CERN-PH-EP-2015-078
Title Differential branching fraction and angular analysis of $\Lambda^{0}_{b} \rightarrow \Lambda \mu^+\mu^-$ decays
Author(s)

Aaij, Roel (NIKHEF, Amsterdam) ; Adeva, Bernardo (U. Santiago de Compostela (main)) ; Adinolfi, Marco (Bristol U.) ; Affolder, Anthony (Liverpool U.) ; Ajaltouni, Ziad (Clermont-Ferrand U.) ; Akar, Simon (Marseille, CPPM) ; Albrecht, Johannes (Tech. U., Dortmund (main)) ; Alessio, Federico (CERN) ; Alexander, Michael (Glasgow U.) ; Ali, Suvayu (NIKHEF, Amsterdam) ; Alkhazov, Georgy (St. Petersburg, INP) ; Alvarez Cartelle, Paula (Imperial Coll., London) ; Alves Jr, Antonio Augusto (Cincinnati U.) ; Amato, Sandra (Rio de Janeiro Federal U.) ; Amerio, Silvia (INFN, Padua) ; Amhis, Yasmine (Orsay, LAL) ; An, Liupan (Peking U., CHEP) ; Anderlini, Lucio (INFN, Florence ; Florence U.) ; Anderson, Jonathan (Zurich U.) ; Andreotti, Mirco (INFN, Ferrara ; Ferrara U.) ; Andrews, Jason (Maryland U., College Park) ; Appleby, Robert (Manchester U.) ; Aquines Gutierrez, Osvaldo (Heidelberg, Max Planck Inst.) ; Archilli, Flavio (CERN) ; Artamonov, Alexander (Serpukhov, IHEP) ; Artuso, Marina (Syracuse U.) ; Aslanides, Elie (Marseille, CPPM) ; Auriemma, Giulio (INFN, Rome ; Basilicata U., Potenza) ; Baalouch, Marouen (Clermont-Ferrand U.) ; Bachmann, Sebastian (Heidelberg U.) ; Back, John (Warwick U.) ; Badalov, Alexey (U. Barcelona (main)) ; Baesso, Clarissa (Rio de Janeiro, Pont. U. Catol.) ; Baldini, Wander (INFN, Ferrara ; CERN) ; Barlow, Roger (Manchester U.) ; Barschel, Colin (CERN) ; Barsuk, Sergey (Orsay, LAL) ; Barter, William (CERN) ; Batozskaya, Varvara (NCBJ, Swierk) ; Battista, Vincenzo (Ecole Polytechnique, Lausanne) ; Bay, Aurelio (Ecole Polytechnique, Lausanne) ; Beaucourt, Leo (Annecy, LAPP) ; Beddow, John (Glasgow U.) ; Bedeschi, Franco (INFN, Pisa) ; Bediaga, Ignacio (Rio de Janeiro, CBPF) ; Bel, Lennaert (NIKHEF, Amsterdam) ; Belyaev, Ivan (Moscow, ITEP) ; Ben-Haim, Eli (Paris U., VI-VII) ; Bencivenni, Giovanni (Frascati) ; Benson, Sean (CERN) ; Benton, Jack (Bristol U.) ; Berezhnoy, Alexander (SINP, Moscow) ; Bernet, Roland (Zurich U.) ; Bertolin, Alessandro (INFN, Padua) ; Bettler, Marc-Olivier (CERN) ; van Beuzekom, Martinus (NIKHEF, Amsterdam) ; Bien, Alexander (Heidelberg U.) ; Bifani, Simone (Birmingham U.) ; Bird, Thomas (Manchester U.) ; Bizzeti, Andrea (INFN, Florence ; U. Modena (main)) ; Blake, Thomas (Warwick U.) ; Blanc, Frédéric (Ecole Polytechnique, Lausanne) ; Blouw, Johan (Heidelberg, Max Planck Inst.) ; Blusk, Steven (Syracuse U.) ; Bocci, Valerio (INFN, Rome) ; Bondar, Alexander (Novosibirsk, IYF ; Novosibirsk State U.) ; Bondar, Nikolay (St. Petersburg, INP ; CERN) ; Bonivento, Walter (INFN, Cagliari) ; Borghi, Silvia (Manchester U.) ; Borsato, Martino (Orsay, LAL) ; Bowcock, Themistocles (Liverpool U.) ; Bowen, Espen Eie (Zurich U.) ; Bozzi, Concezio (INFN, Ferrara) ; Braun, Svende (Heidelberg U.) ; Brett, David (Manchester U.) ; Britsch, Markward (Heidelberg, Max Planck Inst.) ; Britton, Thomas (Syracuse U.) ; Brodzicka, Jolanta (Manchester U.) ; Brook, Nicholas (Bristol U.) ; Bursche, Albert (Zurich U.) ; Buytaert, Jan (CERN) ; Cadeddu, Sandro (INFN, Cagliari) ; Calabrese, Roberto (INFN, Ferrara ; Ferrara U.) ; Calvi, Marta (INFN, Milan Bicocca ; Milan Bicocca U.) ; Calvo Gomez, Miriam (U. Barcelona (main) ; Ramon Llull U., Barcelona) ; Campana, Pierluigi (Frascati) ; Campora Perez, Daniel (CERN) ; Capriotti, Lorenzo (Manchester U.) ; Carbone, Angelo (INFN, Bologna ; Bologna U.) ; Carboni, Giovanni (INFN, Rome2 ; Rome U., Tor Vergata) ; Cardinale, Roberta (INFN, Genoa ; Genoa U.) ; Cardini, Alessandro (INFN, Cagliari) ; Carniti, Paolo (INFN, Milan Bicocca) ; Carson, Laurence (Edinburgh U.) ; Carvalho Akiba, Kazuyoshi (Rio de Janeiro Federal U. ; CERN) ; Casanova Mohr, Raimon (U. Barcelona (main)) ; Casse, Gianluigi (Liverpool U.) ; Cassina, Lorenzo (INFN, Milan Bicocca ; Milan Bicocca U.) ; Castillo Garcia, Lucia (CERN) ; Cattaneo, Marco (CERN) ; Cauet, Christophe (Tech. U., Dortmund (main)) ; Cavallero, Giovanni (INFN, Genoa) ; Cenci, Riccardo (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Charles, Matthew (Paris U., VI-VII) ; Charpentier, Philippe (CERN) ; Chefdeville, Maximilien (Annecy, LAPP) ; Chen, Shanzhen (Manchester U.) ; Cheung, Shu-Faye (Oxford U.) ; Chiapolini, Nicola (Zurich U.) ; Chrzaszcz, Marcin (Zurich U. ; Cracow, INP) ; Cid Vidal, Xabier (CERN) ; Ciezarek, Gregory (NIKHEF, Amsterdam) ; Clarke, Peter (Edinburgh U.) ; Clemencic, Marco (CERN) ; Cliff, Harry (Cambridge U.) ; Closier, Joel (CERN) ; Coco, Victor (CERN) ; Cogan, Julien (Marseille, CPPM) ; Cogneras, Eric (Clermont-Ferrand U.) ; Cogoni, Violetta (INFN, Cagliari ; Cagliari U.) ; Cojocariu, Lucian (Bucharest, IFIN-HH) ; Collazuol, Gianmaria (INFN, Padua) ; Collins, Paula (CERN) ; Comerma-Montells, Albert (Heidelberg U.) ; Contu, Andrea (INFN, Cagliari ; CERN) ; Cook, Andrew (Bristol U.) ; Coombes, Matthew (Bristol U.) ; Coquereau, Samuel (Paris U., VI-VII) ; Corti, Gloria (CERN) ; Corvo, Marco (INFN, Ferrara ; Ferrara U.) ; Counts, Ian (MIT) ; Couturier, Benjamin (CERN) ; Cowan, Greig (Edinburgh U.) ; Craik, Daniel Charles (Warwick U.) ; Crocombe, Andrew (Warwick U.) ; Cruz Torres, Melissa Maria (Rio de Janeiro, Pont. U. Catol.) ; Cunliffe, Samuel (Imperial Coll., London) ; Currie, Robert (Imperial Coll., London) ; D'Ambrosio, Carmelo (CERN) ; Dalseno, Jeremy (Bristol U.) ; David, Pieter (NIKHEF, Amsterdam) ; Davis, Adam (Cincinnati U.) ; De Bruyn, Kristof (NIKHEF, Amsterdam) ; De Capua, Stefano (Manchester U.) ; De Cian, Michel (Heidelberg U.) ; De Miranda, Jussara (Rio de Janeiro, CBPF) ; De Paula, Leandro (Rio de Janeiro Federal U.) ; De Silva, Weeraddana (Cincinnati U.) ; De Simone, Patrizia (Frascati) ; Dean, Cameron Thomas (Glasgow U.) ; Decamp, Daniel (Annecy, LAPP) ; Deckenhoff, Mirko (Tech. U., Dortmund (main)) ; Del Buono, Luigi (Paris U., VI-VII) ; Déléage, Nicolas (Annecy, LAPP) ; Derkach, Denis (Oxford U.) ; Deschamps, Olivier (Clermont-Ferrand U.) ; Dettori, Francesco (CERN) ; Dey, Biplab (Zurich U.) ; Di Canto, Angelo (CERN) ; Di Ruscio, Francesco (INFN, Rome2) ; Dijkstra, Hans (CERN) ; Donleavy, Stephanie (Liverpool U.) ; Dordei, Francesca (Heidelberg U.) ; Dorigo, Mirco (Ecole Polytechnique, Lausanne) ; Dosil Suárez, Alvaro (U. Santiago de Compostela (main)) ; Dossett, David (Warwick U.) ; Dovbnya, Anatoliy (Kharkov, KIPT) ; Dreimanis, Karlis (Liverpool U.) ; Dujany, Giulio (Manchester U.) ; Dupertuis, Frederic (Ecole Polytechnique, Lausanne) ; Durante, Paolo (CERN) ; Dzhelyadin, Rustem (Serpukhov, IHEP) ; Dziurda, Agnieszka (Cracow, INP) ; Dzyuba, Alexey (St. Petersburg, INP) ; Easo, Sajan (Rutherford ; CERN) ; Egede, Ulrik (Imperial Coll., London) ; Egorychev, Victor (Moscow, ITEP) ; Eidelman, Semen (Novosibirsk, IYF ; Novosibirsk State U.) ; Eisenhardt, Stephan (Edinburgh U.) ; Eitschberger, Ulrich (Tech. U., Dortmund (main)) ; Ekelhof, Robert (Tech. U., Dortmund (main)) ; Eklund, Lars (Glasgow U.) ; El Rifai, Ibrahim (Clermont-Ferrand U.) ; Elsasser, Christian (Zurich U.) ; Ely, Scott (Syracuse U.) ; Esen, Sevda (Heidelberg U.) ; Evans, Hannah Mary (Cambridge U.) ; Evans, Timothy (Oxford U.) ; Falabella, Antonio (INFN, Bologna) ; Färber, Christian (Heidelberg U.) ; Farinelli, Chiara (NIKHEF, Amsterdam) ; Farley, Nathanael (Birmingham U.) ; Farry, Stephen (Liverpool U.) ; Fay, Robert (Liverpool U.) ; Ferguson, Dianne (Edinburgh U.) ; Fernandez Albor, Victor (U. Santiago de Compostela (main)) ; Ferrari, Fabio (INFN, Bologna) ; Ferreira Rodrigues, Fernando (Rio de Janeiro, CBPF) ; Ferro-Luzzi, Massimiliano (CERN) ; Filippov, Sergey (Moscow, INR) ; Fiore, Marco (INFN, Ferrara ; CERN ; Ferrara U.) ; Fiorini, Massimiliano (INFN, Ferrara ; Ferrara U.) ; Firlej, Miroslaw (AGH-UST, Cracow) ; Fitzpatrick, Conor (Ecole Polytechnique, Lausanne) ; Fiutowski, Tomasz (AGH-UST, Cracow) ; Fol, Philip (Imperial Coll., London) ; Fontana, Marianna (Heidelberg, Max Planck Inst.) ; Fontanelli, Flavio (INFN, Genoa ; Genoa U.) ; Forty, Roger (CERN) ; Francisco, Oscar (Rio de Janeiro Federal U.) ; Frank, Markus (CERN) ; Frei, Christoph (CERN) ; Frosini, Maddalena (INFN, Florence) ; Fu, Jinlin (INFN, Milan ; CERN) ; Furfaro, Emiliano (INFN, Rome2 ; Rome U., Tor Vergata) ; Gallas Torreira, Abraham (U. Santiago de Compostela (main)) ; Galli, Domenico (INFN, Bologna ; Bologna U.) ; Gallorini, Stefano (INFN, Padua ; CERN) ; Gambetta, Silvia (INFN, Genoa ; Genoa U.) ; Gandelman, Miriam (Rio de Janeiro Federal U.) ; Gandini, Paolo (Oxford U.) ; Gao, Yuanning (Peking U., CHEP) ; García Pardiñas, Julián (U. Santiago de Compostela (main)) ; Garofoli, Justin (Syracuse U.) ; Garra Tico, Jordi (Cambridge U.) ; Garrido, Lluis (U. Barcelona (main)) ; Gascon, David (U. Barcelona (main)) ; Gaspar, Clara (CERN) ; Gastaldi, Ugo (INFN, Ferrara) ; Gauld, Rhorry (Oxford U.) ; Gavardi, Laura (Tech. U., Dortmund (main)) ; Gazzoni, Giulio (Clermont-Ferrand U.) ; Geraci, Angelo (INFN, Milan ; Milan Polytechnic) ; Gerick, David (Heidelberg U.) ; Gersabeck, Evelina (Heidelberg U.) ; Gersabeck, Marco (Manchester U.) ; Gershon, Timothy (Warwick U.) ; Ghez, Philippe (Annecy, LAPP) ; Gianelle, Alessio (INFN, Padua) ; Gianì, Sebastiana (Ecole Polytechnique, Lausanne) ; Gibson, Valerie (Cambridge U.) ; Giubega, Lavinia-Helena (Bucharest, IFIN-HH) ; Gligorov, V.V. (CERN) ; Göbel, Carla (Rio de Janeiro, Pont. U. Catol.) ; Golubkov, Dmitry (Moscow, ITEP) ; Golutvin, Andrey (Imperial Coll., London ; Moscow, ITEP ; CERN) ; Gomes, Alvaro (Rio de Janeiro, CBPF ; UFTM, Uberaba) ; Gotti, Claudio (INFN, Milan Bicocca ; Milan Bicocca U.) ; Grabalosa Gándara, Marc (Clermont-Ferrand U.) ; Graciani Diaz, Ricardo (U. Barcelona (main)) ; Granado Cardoso, Luis Alberto (CERN) ; Graugés, Eugeni (U. Barcelona (main)) ; Graverini, Elena (Zurich U.) ; Graziani, Giacomo (INFN, Florence) ; Grecu, Alexandru (Bucharest, IFIN-HH) ; Greening, Edward (Oxford U.) ; Gregson, Sam (Cambridge U.) ; Griffith, Peter (Birmingham U.) ; Grillo, Lucia (Heidelberg U.) ; Grünberg, Oliver (Rostock U.) ; Gui, Bin (Syracuse U.) ; Gushchin, Evgeny (Moscow, INR) ; Guz, Yury (Serpukhov, IHEP ; CERN) ; Gys, Thierry (CERN) ; Hadjivasiliou, Christos (Syracuse U.) ; Haefeli, Guido (Ecole Polytechnique, Lausanne) ; Haen, Christophe (CERN) ; Haines, Susan (Cambridge U.) ; Hall, Samuel (Imperial Coll., London) ; Hamilton, Brian (Maryland U., College Park) ; Hampson, Thomas (Bristol U.) ; Han, Xiaoxue (Heidelberg U.) ; Hansmann-Menzemer, Stephanie (Heidelberg U.) ; Harnew, Neville (Oxford U.) ; Harnew, Samuel (Bristol U.) ; Harrison, Jonathan (Manchester U.) ; He, Jibo (CERN) ; Head, Timothy (Ecole Polytechnique, Lausanne) ; Heijne, Veerle (NIKHEF, Amsterdam) ; Hennessy, Karol (Liverpool U.) ; Henrard, Pierre (Clermont-Ferrand U.) ; Henry, Louis (Paris U., VI-VII) ; Hernando Morata, Jose Angel (U. Santiago de Compostela (main)) ; van Herwijnen, Eric (CERN) ; Heß, Miriam (Rostock U.) ; Hicheur, Adlène (Rio de Janeiro Federal U.) ; Hill, Donal (Oxford U.) ; Hoballah, Mostafa (Clermont-Ferrand U.) ; Hombach, Christoph (Manchester U.) ; Hulsbergen, Wouter (NIKHEF, Amsterdam) ; Humair, Thibaud (Imperial Coll., London) ; Hussain, Nazim (Oxford U.) ; Hutchcroft, David (Liverpool U.) ; Hynds, Daniel (Glasgow U.) ; Idzik, Marek (AGH-UST, Cracow) ; Ilten, Philip (MIT) ; Jacobsson, Richard (CERN) ; Jaeger, Andreas (Heidelberg U.) ; Jalocha, Pawel (Oxford U.) ; Jans, Eddy (NIKHEF, Amsterdam) ; Jawahery, Abolhassan (Maryland U., College Park) ; Jing, Fanfan (Tsinghua U., Beijing) ; John, Malcolm (Oxford U.) ; Johnson, Daniel (CERN) ; Jones, Christopher (Cambridge U.) ; Joram, Christian (CERN) ; Jost, Beat (CERN) ; Jurik, Nathan (Syracuse U.) ; Kandybei, Sergii (Kharkov, KIPT) ; Kanso, Walaa (Marseille, CPPM) ; Karacson, Matthias (CERN) ; Karbach, Moritz (CERN) ; Karodia, Sarah (Glasgow U.) ; Kelsey, Matthew (Syracuse U.) ; Kenyon, Ian (Birmingham U.) ; Kenzie, Matthew (CERN) ; Ketel, Tjeerd (NIKHEF, Amsterdam ; Vrije U., Amsterdam) ; Khanji, Basem (INFN, Milan Bicocca ; CERN ; Milan Bicocca U.) ; Khurewathanakul, Chitsanu (Ecole Polytechnique, Lausanne) ; Klaver, Suzanne (Manchester U.) ; Klimaszewski, Konrad (NCBJ, Swierk) ; Kochebina, Olga (Orsay, LAL) ; Kolpin, Michael (Heidelberg U.) ; Komarov, Ilya (Ecole Polytechnique, Lausanne) ; Koopman, Rose (NIKHEF, Amsterdam ; Vrije U., Amsterdam) ; Koppenburg, Patrick (NIKHEF, Amsterdam ; CERN) ; Korolev, Mikhail (SINP, Moscow) ; Kravchuk, Leonid (Moscow, INR) ; Kreplin, Katharina (Heidelberg U.) ; Kreps, Michal (Warwick U.) ; Krocker, Georg (Heidelberg U.) ; Krokovny, Pavel (Novosibirsk, IYF ; Novosibirsk State U.) ; Kruse, Florian (Tech. U., Dortmund (main)) ; Kucewicz, Wojciech (Cracow, INP ; AGH-UST, Cracow) ; Kucharczyk, Marcin (Cracow, INP) ; Kudryavtsev, Vasily (Novosibirsk, IYF ; Novosibirsk State U.) ; Kurek, Krzysztof (NCBJ, Swierk) ; Kvaratskheliya, Tengiz (Moscow, ITEP) ; La Thi, Viet Nga (Ecole Polytechnique, Lausanne) ; Lacarrere, Daniel (CERN) ; Lafferty, George (Manchester U.) ; Lai, Adriano (INFN, Cagliari) ; Lambert, Dean (Edinburgh U.) ; Lambert, Robert W (NIKHEF, Amsterdam ; Vrije U., Amsterdam) ; Lanfranchi, Gaia (Frascati) ; Langenbruch, Christoph (Warwick U.) ; Langhans, Benedikt (CERN) ; Latham, Thomas (Warwick U.) ; Lazzeroni, Cristina (Birmingham U.) ; Le Gac, Renaud (Marseille, CPPM) ; van Leerdam, Jeroen (NIKHEF, Amsterdam) ; Lees, Jean-Pierre (Annecy, LAPP) ; Lefèvre, Regis (Clermont-Ferrand U.) ; Leflat, Alexander (SINP, Moscow) ; Lefrançois, Jacques (Orsay, LAL) ; Leroy, Olivier (Marseille, CPPM) ; Lesiak, Tadeusz (Cracow, INP) ; Leverington, Blake (Heidelberg U.) ; Li, Yiming (Orsay, LAL) ; Likhomanenko, Tatiana (Kurchatov Inst., Moscow) ; Liles, Myfanwy (Liverpool U.) ; Lindner, Rolf (CERN) ; Linn, Christian (CERN) ; Lionetto, Federica (Zurich U.) ; Liu, Bo (INFN, Cagliari) ; Lohn, Stefan (CERN) ; Longstaff, Iain (Glasgow U.) ; Lopes, Jose (Rio de Janeiro Federal U.) ; Lowdon, Peter (Zurich U.) ; Lucchesi, Donatella (INFN, Padua ; U. Padua (main)) ; Luo, Haofei (Edinburgh U.) ; Lupato, Anna (INFN, Padua) ; Luppi, Eleonora (INFN, Ferrara ; Ferrara U.) ; Lupton, Oliver (Oxford U.) ; Machefert, Frederic (Orsay, LAL) ; Maciuc, Florin (Bucharest, IFIN-HH) ; Maev, Oleg (St. Petersburg, INP) ; Malde, Sneha (Oxford U.) ; Malinin, Alexander (Kurchatov Inst., Moscow) ; Manca, Giulia (INFN, Cagliari ; Cagliari U.) ; Mancinelli, Giampiero (Marseille, CPPM) ; Manning, Peter Michael (Syracuse U.) ; Mapelli, Alessandro (CERN) ; Maratas, Jan (Clermont-Ferrand U.) ; Marchand, Jean François (Annecy, LAPP) ; Marconi, Umberto (INFN, Bologna) ; Marin Benito, Carla (U. Barcelona (main)) ; Marino, Pietro (INFN, Pisa ; CERN ; Pisa, Scuola Normale Superiore) ; Märki, Raphael (Ecole Polytechnique, Lausanne) ; Marks, Jörg (Heidelberg U.) ; Martellotti, Giuseppe (INFN, Rome) ; Martinelli, Maurizio (Ecole Polytechnique, Lausanne) ; Martinez Santos, Diego (NIKHEF, Amsterdam ; Vrije U., Amsterdam) ; Martinez Vidal, Fernando (Valencia U., IFIC) ; Martins Tostes, Danielle (Rio de Janeiro Federal U.) ; Massafferri, André (Rio de Janeiro, CBPF) ; Matev, Rosen (CERN) ; Mathad, Abhijit (Warwick U.) ; Mathe, Zoltan (CERN) ; Matteuzzi, Clara (INFN, Milan Bicocca) ; Mauri, Andrea (Zurich U.) ; Maurin, Brice (Ecole Polytechnique, Lausanne) ; Mazurov, Alexander (Birmingham U.) ; McCann, Michael (Imperial Coll., London) ; McCarthy, James (Birmingham U.) ; McNab, Andrew (Manchester U.) ; McNulty, Ronan (University Coll., Dublin) ; Meadows, Brian (Cincinnati U.) ; Meier, Frank (Tech. U., Dortmund (main)) ; Meissner, Marco (Heidelberg U.) ; Merk, Marcel (NIKHEF, Amsterdam) ; Milanes, Diego Alejandro (Colombia, U. Natl.) ; Minard, Marie-Noelle (Annecy, LAPP) ; Mitzel, Dominik Stefan (Heidelberg U.) ; Molina Rodriguez, Josue (Rio de Janeiro, Pont. U. Catol.) ; Monteil, Stephane (Clermont-Ferrand U.) ; Morandin, Mauro (INFN, Padua) ; Morawski, Piotr (AGH-UST, Cracow) ; Mordà, Alessandro (Marseille, CPPM) ; Morello, Michael Joseph (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Moron, Jakub (AGH-UST, Cracow) ; Morris, Adam Benjamin (Edinburgh U.) ; Mountain, Raymond (Syracuse U.) ; Muheim, Franz (Edinburgh U.) ; Müller, Katharina (Zurich U.) ; Mussini, Manuel (INFN, Bologna) ; Muster, Bastien (Ecole Polytechnique, Lausanne) ; Naik, Paras (Bristol U.) ; Nakada, Tatsuya (Ecole Polytechnique, Lausanne) ; Nandakumar, Raja (Rutherford) ; Nasteva, Irina (Rio de Janeiro Federal U.) ; Needham, Matthew (Edinburgh U.) ; Neri, Nicola (INFN, Milan) ; Neubert, Sebastian (Heidelberg U.) ; Neufeld, Niko (CERN) ; Neuner, Max (Heidelberg U.) ; Nguyen, Anh Duc (Ecole Polytechnique, Lausanne) ; Nguyen, Thi-Dung (Ecole Polytechnique, Lausanne) ; Nguyen-Mau, Chung (Ecole Polytechnique, Lausanne ; Hanoi U. of Sci.) ; Niess, Valentin (Clermont-Ferrand U.) ; Niet, Ramon (Tech. U., Dortmund (main)) ; Nikitin, Nikolay (SINP, Moscow) ; Nikodem, Thomas (Heidelberg U.) ; Novoselov, Alexey (Serpukhov, IHEP) ; O'Hanlon, Daniel Patrick (Warwick U.) ; Oblakowska-Mucha, Agnieszka (AGH-UST, Cracow) ; Obraztsov, Vladimir (Serpukhov, IHEP) ; Ogilvy, Stephen (Glasgow U.) ; Okhrimenko, Oleksandr (Kiev, INR) ; Oldeman, Rudolf (INFN, Cagliari ; Cagliari U.) ; Onderwater, Gerco (U. Groningen, VSI) ; Osorio Rodrigues, Bruno (Rio de Janeiro, CBPF) ; Otalora Goicochea, Juan Martin (Rio de Janeiro Federal U.) ; Otto, Adam (CERN) ; Owen, Patrick (Imperial Coll., London) ; Oyanguren, Maria Aranzazu (Valencia U., IFIC) ; Palano, Antimo (INFN, Bari ; Bari U.) ; Palombo, Fernando (INFN, Milan ; U. Milan (main)) ; Palutan, Matteo (Frascati) ; Panman, Jacob (CERN) ; Papanestis, Antonios (Rutherford) ; Pappagallo, Marco (Glasgow U.) ; Pappalardo, Luciano (INFN, Ferrara ; Ferrara U.) ; Parkes, Christopher (Manchester U.) ; Passaleva, Giovanni (INFN, Florence) ; Patel, Girish (Liverpool U.) ; Patel, Mitesh (Imperial Coll., London) ; Patrignani, Claudia (INFN, Genoa ; Genoa U.) ; Pearce, Alex (Manchester U. ; Rutherford) ; Pellegrino, Antonio (NIKHEF, Amsterdam) ; Penso, Gianni (INFN, Rome ; U. Rome La Sapienza (main)) ; Pepe Altarelli, Monica (CERN) ; Perazzini, Stefano (INFN, Bologna ; Bologna U.) ; Perret, Pascal (Clermont-Ferrand U.) ; Pescatore, Luca (Birmingham U.) ; Petridis, Konstantin (Bristol U.) ; Petrolini, Alessandro (INFN, Genoa ; Genoa U.) ; Picatoste Olloqui, Eduardo (U. Barcelona (main)) ; Pietrzyk, Boleslaw (Annecy, LAPP) ; Pilař, Tomas (Warwick U.) ; Pinci, Davide (INFN, Rome) ; Pistone, Alessandro (INFN, Genoa) ; Playfer, Stephen (Edinburgh U.) ; Plo Casasus, Maximo (U. Santiago de Compostela (main)) ; Poikela, Tuomas (CERN) ; Polci, Francesco (Paris U., VI-VII) ; Poluektov, Anton (Warwick U. ; Novosibirsk, IYF ; Novosibirsk State U.) ; Polyakov, Ivan (Moscow, ITEP) ; Polycarpo, Erica (Rio de Janeiro Federal U.) ; Popov, Alexander (Serpukhov, IHEP) ; Popov, Dmitry (Heidelberg, Max Planck Inst.) ; Popovici, Bogdan (Bucharest, IFIN-HH) ; Potterat, Cédric (Rio de Janeiro Federal U.) ; Price, Eugenia (Bristol U.) ; Price, Joseph David (Liverpool U.) ; Prisciandaro, Jessica (Ecole Polytechnique, Lausanne) ; Pritchard, Adrian (Liverpool U.) ; Prouve, Claire (Bristol U.) ; Pugatch, Valery (Kiev, INR) ; Puig Navarro, Albert (Ecole Polytechnique, Lausanne) ; Punzi, Giovanni (INFN, Pisa ; U. Pisa (main)) ; Qian, Wenbin (Annecy, LAPP) ; Quagliani, Renato (Orsay, LAL ; Bristol U.) ; Rachwal, Bartolomiej (Cracow, INP) ; Rademacker, Jonas (Bristol U.) ; Rakotomiaramanana, Barinjaka (Ecole Polytechnique, Lausanne) ; Rama, Matteo (INFN, Pisa) ; Rangel, Murilo (Rio de Janeiro Federal U.) ; Raniuk, Iurii (Kharkov, KIPT) ; Rauschmayr, Nathalie (CERN) ; Raven, Gerhard (NIKHEF, Amsterdam ; Vrije U., Amsterdam) ; Redi, Federico (Imperial Coll., London) ; Reichert, Stefanie (Manchester U.) ; Reid, Matthew (Warwick U.) ; dos Reis, Alberto (Rio de Janeiro, CBPF) ; Ricciardi, Stefania (Rutherford) ; Richards, Sophie (Bristol U.) ; Rihl, Mariana (CERN) ; Rinnert, Kurt (Liverpool U.) ; Rives Molina, Vincente (U. Barcelona (main)) ; Robbe, Patrick (Orsay, LAL ; CERN) ; Rodrigues, Ana Barbara (Rio de Janeiro, CBPF) ; Rodrigues, Eduardo (Manchester U.) ; Rodriguez Lopez, Jairo Alexis (Colombia, U. Natl.) ; Rodriguez Perez, Pablo (Manchester U.) ; Roiser, Stefan (CERN) ; Romanovsky, Vladimir (Serpukhov, IHEP) ; Romero Vidal, Antonio (U. Santiago de Compostela (main)) ; Rotondo, Marcello (INFN, Padua) ; Rouvinet, Julien (Ecole Polytechnique, Lausanne) ; Ruf, Thomas (CERN) ; Ruiz, Hugo (U. Barcelona (main)) ; Ruiz Valls, Pablo (Valencia U., IFIC) ; Saborido Silva, Juan Jose (U. Santiago de Compostela (main)) ; Sagidova, Naylya (St. Petersburg, INP) ; Sail, Paul (Glasgow U.) ; Saitta, Biagio (INFN, Cagliari ; Cagliari U.) ; Salustino Guimaraes, Valdir (Rio de Janeiro Federal U.) ; Sanchez Mayordomo, Carlos (Valencia U., IFIC) ; Sanmartin Sedes, Brais (U. Santiago de Compostela (main)) ; Santacesaria, Roberta (INFN, Rome) ; Santamarina Rios, Cibran (U. Santiago de Compostela (main)) ; Santovetti, Emanuele (INFN, Rome2 ; Rome U., Tor Vergata) ; Sarti, Alessio (Frascati ; U. Rome La Sapienza (main)) ; Satriano, Celestina (INFN, Rome ; Basilicata U., Potenza) ; Satta, Alessia (INFN, Rome2) ; Saunders, Daniel Martin (Bristol U.) ; Savrina, Darya (Moscow, ITEP ; SINP, Moscow) ; Schiller, Manuel (CERN) ; Schindler, Heinrich (CERN) ; Schlupp, Maximilian (Tech. U., Dortmund (main)) ; Schmelling, Michael (Heidelberg, Max Planck Inst.) ; Schmidt, Burkhard (CERN) ; Schneider, Olivier (Ecole Polytechnique, Lausanne) ; Schopper, Andreas (CERN) ; Schune, Marie Helene (Orsay, LAL) ; Schwemmer, Rainer (CERN) ; Sciascia, Barbara (Frascati) ; Sciubba, Adalberto (INFN, Rome ; U. Rome La Sapienza (main)) ; Semennikov, Alexander (Moscow, ITEP) ; Sepp, Indrek (Imperial Coll., London) ; Serra, Nicola (Zurich U.) ; Serrano, Justine (Marseille, CPPM) ; Sestini, Lorenzo (INFN, Padua) ; Seyfert, Paul (Heidelberg U.) ; Shapkin, Mikhail (Serpukhov, IHEP) ; Shapoval, Illya (INFN, Ferrara ; Kharkov, KIPT ; Ferrara U.) ; Shcheglov, Yury (St. Petersburg, INP) ; Shears, Tara (Liverpool U.) ; Shekhtman, Lev (Novosibirsk, IYF ; Novosibirsk State U.) ; Shevchenko, Vladimir (Kurchatov Inst., Moscow) ; Shires, Alexander (Tech. U., Dortmund (main)) ; Silva Coutinho, Rafael (Warwick U.) ; Simi, Gabriele (INFN, Padua) ; Sirendi, Marek (Cambridge U.) ; Skidmore, Nicola (Bristol U.) ; Skillicorn, Ian (Glasgow U.) ; Skwarnicki, Tomasz (Syracuse U.) ; Smith, Anthony (Liverpool U.) ; Smith, Edmund (Oxford U. ; Rutherford) ; Smith, Eluned (Imperial Coll., London) ; Smith, Jackson (Cambridge U.) ; Smith, Mark (Manchester U.) ; Snoek, Hella (NIKHEF, Amsterdam) ; Sokoloff, Michael (Cincinnati U. ; CERN) ; Soler, Paul (Glasgow U.) ; Soomro, Fatima (Ecole Polytechnique, Lausanne) ; Souza, Daniel (Bristol U.) ; Souza De Paula, Bruno (Rio de Janeiro Federal U.) ; Spaan, Bernhard (Tech. U., Dortmund (main)) ; Spradlin, Patrick (Glasgow U.) ; Sridharan, Srikanth (CERN) ; Stagni, Federico (CERN) ; Stahl, Marian (Heidelberg U.) ; Stahl, Sascha (CERN) ; Steinkamp, Olaf (Zurich U.) ; Stenyakin, Oleg (Serpukhov, IHEP) ; Sterpka, Christopher Francis (Syracuse U.) ; Stevenson, Scott (Oxford U.) ; Stoica, Sabin (Bucharest, IFIN-HH) ; Stone, Sheldon (Syracuse U.) ; Storaci, Barbara (Zurich U.) ; Stracka, Simone (INFN, Pisa ; Pisa, Scuola Normale Superiore) ; Straticiuc, Mihai (Bucharest, IFIN-HH) ; Straumann, Ulrich (Zurich U.) ; Stroili, Roberto (INFN, Padua) ; Sun, Liang (Cincinnati U.) ; Sutcliffe, William (Imperial Coll., London) ; Swientek, Krzysztof (AGH-UST, Cracow) ; Swientek, Stefan (Tech. U., Dortmund (main)) ; Syropoulos, Vasileios (NIKHEF, Amsterdam ; Vrije U., Amsterdam) ; Szczekowski, Marek (NCBJ, Swierk) ; Szczypka, Paul (Ecole Polytechnique, Lausanne ; CERN) ; Szumlak, Tomasz (AGH-UST, Cracow) ; T'Jampens, Stephane (Annecy, LAPP) ; Teklishyn, Maksym (Orsay, LAL) ; Tellarini, Giulia (INFN, Ferrara ; Ferrara U.) ; Teubert, Frederic (CERN) ; Thomas, Christopher (Oxford U.) ; Thomas, Eric (CERN) ; van Tilburg, Jeroen (NIKHEF, Amsterdam) ; Tisserand, Vincent (Annecy, LAPP) ; Tobin, Mark (Ecole Polytechnique, Lausanne) ; Todd, Jacob (Cincinnati U.) ; Tolk, Siim (NIKHEF, Amsterdam ; Vrije U., Amsterdam) ; Tomassetti, Luca (INFN, Ferrara ; Ferrara U.) ; Tonelli, Diego (CERN) ; Topp-Joergensen, Stig (Oxford U.) ; Torr, Nicholas (Oxford U.) ; Tournefier, Edwige (Annecy, LAPP) ; Tourneur, Stephane (Ecole Polytechnique, Lausanne) ; Trabelsi, Karim (Ecole Polytechnique, Lausanne) ; Tran, Minh Tâm (Ecole Polytechnique, Lausanne) ; Tresch, Marco (Zurich U.) ; Trisovic, Ana (CERN) ; Tsaregorodtsev, Andrei (Marseille, CPPM) ; Tsopelas, Panagiotis (NIKHEF, Amsterdam) ; Tuning, Niels (NIKHEF, Amsterdam ; CERN) ; Ukleja, Artur (NCBJ, Swierk) ; Ustyuzhanin, Andrey (Yandex Sch. Data Anal., Moscow) ; Uwer, Ulrich (Heidelberg U.) ; Vacca, Claudia (INFN, Cagliari ; Cagliari U.) ; Vagnoni, Vincenzo (INFN, Bologna) ; Valenti, Giovanni (INFN, Bologna) ; Vallier, Alexis (Orsay, LAL) ; Vazquez Gomez, Ricardo (Frascati) ; Vazquez Regueiro, Pablo (U. Santiago de Compostela (main)) ; Vázquez Sierra, Carlos (U. Santiago de Compostela (main)) ; Vecchi, Stefania (INFN, Ferrara) ; Velthuis, Jaap (Bristol U.) ; Veltri, Michele (INFN, Florence ; U. Urbino (main)) ; Veneziano, Giovanni (Ecole Polytechnique, Lausanne) ; Vesterinen, Mika (Heidelberg U.) ; Viana Barbosa, Joao Vitor (CERN) ; Viaud, Benoit (Orsay, LAL) ; Vieira, Daniel (Rio de Janeiro Federal U.) ; Vieites Diaz, Maria (U. Santiago de Compostela (main)) ; Vilasis-Cardona, Xavier (U. Barcelona (main) ; Ramon Llull U., Barcelona) ; Vollhardt, Achim (Zurich U.) ; Volyanskyy, Dmytro (Heidelberg, Max Planck Inst.) ; Voong, David (Bristol U.) ; Vorobyev, Alexey (St. Petersburg, INP) ; Vorobyev, Vitaly (Novosibirsk, IYF ; Novosibirsk State U.) ; Voß, Christian (Rostock U.) ; de Vries, Jacco (NIKHEF, Amsterdam) ; Waldi, Roland (Rostock U.) ; Wallace, Charlotte (Warwick U.) ; Wallace, Ronan (University Coll., Dublin) ; Walsh, John (INFN, Pisa) ; Wandernoth, Sebastian (Heidelberg U.) ; Wang, Jianchun (Syracuse U.) ; Ward, David (Cambridge U.) ; Watson, Nigel (Birmingham U.) ; Websdale, David (Imperial Coll., London) ; Weiden, Andreas (Zurich U.) ; Whitehead, Mark (Warwick U.) ; Wiedner, Dirk (Heidelberg U.) ; Wilkinson, Guy (Oxford U. ; CERN) ; Wilkinson, Michael (Syracuse U.) ; Williams, Mark Richard James (CERN) ; Williams, Matthew (Birmingham U.) ; Williams, Mike (MIT) ; Wilson, Fergus (Rutherford) ; Wimberley, Jack (Maryland U., College Park) ; Wishahi, Julian (Tech. U., Dortmund (main)) ; Wislicki, Wojciech (NCBJ, Swierk) ; Witek, Mariusz (Cracow, INP) ; Wormser, Guy (Orsay, LAL) ; Wotton, Stephen (Cambridge U.) ; Wright, Simon (Cambridge U.) ; Wyllie, Kenneth (CERN) ; Xie, Yuehong (CCNU, Wuhan, Inst. Part. Phys.) ; Xu, Zhirui (Ecole Polytechnique, Lausanne) ; Yang, Zhenwei (Peking U., CHEP) ; Yuan, Xuhao (Novosibirsk, IYF ; Novosibirsk State U.) ; Yushchenko, Oleg (Serpukhov, IHEP) ; Zangoli, Maria (INFN, Bologna) ; Zavertyaev, Mikhail (Heidelberg, Max Planck Inst. ; Lebedev Inst.) ; Zhang, Liming (Peking U., CHEP) ; Zhang, Yanxi (Peking U., CHEP) ; Zhelezov, Alexey (Heidelberg U.) ; Zhokhov, Anatoly (Moscow, ITEP) ; Zhong, Liang (Peking U., CHEP)

Publication 2015-06-17
Imprint 24 Mar 2015
Number of pages 27
Note Comments: 27 pages, 10 figures
27 pages, 10 figures
In: JHEP 06 (2015) pp.115
DOI 10.1007/JHEP06(2015)115
10.1007/JHEP09(2018)145 (Erratum)
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; forward physics ; B physics ; branching fraction ; rare decay
Abstract The differential branching fraction of the rare decay $\Lambda^{0}_{b} \rightarrow \Lambda \mu^+\mu^-$ is measured as a function of $q^{2}$, the square of the dimuon invariant mass. The analysis is performed using proton-proton collision data, corresponding to an integrated luminosity of $3.0 \mbox{ fb}^{-1}$, collected by the LHCb experiment. Evidence of signal is observed in the $q^2$ region below the square of the $J/\psi$ mass. Integrating over $15 < q^{2} < 20 \mbox{ GeV}^2/c^4$ the branching fraction is measured as $d\mathcal{B}(\Lambda^{0}_{b} \rightarrow \Lambda^0 \mu^+\mu^-)/dq^2 = (1.18 ^{+ 0.09} _{-0.08} \pm 0.03 \pm 0.27) \times 10^{-7} ( \mbox{GeV}^{2}/c^{4})^{-1}$, where the uncertainties are statistical, systematic and due to the normalisation mode, $\Lambda^{0}_{b} \rightarrow J/\psi \Lambda^0$, respectively. In the $q^2$ intervals where the signal is observed, angular distributions are studied and the forward-backward asymmetries in the dimuon ($A^{l}_{\rm FB}$) and hadron ($A^{h}_{\rm FB}$) systems are measured for the first time. In the range $15 < q^2 < 20 \mbox{ GeV}^2/c^4$ they are found to be $A^{l}_{\rm FB} = -0.05 \pm 0.09 \mbox{ (stat)} \pm 0.03 \mbox{ (syst)}$ and $A^{h}_{\rm FB} = -0.29 \pm 0.07 \mbox{ (stat)} \pm 0.03 \mbox{ (syst)}$.
Copyright/License preprint: © 2015-2024 CERN (License: CC-BY-4.0)
publication: © 2015-2024 CERN (License: CC-BY-4.0), sponsored by SCOAP³



Corresponding record in: Inspire
Email contact: [email protected]


 Rekord stworzony 2015-03-25, ostatnia modyfikacja 2024-08-17


Article from SCOAP3:
scoap3-fulltext - Pobierz pełny tekstPDF
scoap - Pobierz pełny tekstPDF
(dodatkowe pliki)
Pełny tekst:
arXiv:1503.07138 - Pobierz pełny tekstPDF
LHCb-PAPER-2015-009 - Pobierz pełny tekstPDF
(dodatkowe pliki)
Springer Open Access article:
Pobierz pełny tekstPDF
(dodatkowe pliki)
Link zewnętrzny:
Pobierz pełny tekstPreprint