Página principal > Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions |
Article | |
Report number | arXiv:2112.01120 ; DESY-21-206 |
Title | Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions |
Author(s) |
Abt, I. (Munich, Max Planck Inst.) ; Aggarwal, R. (Unlisted) ; Andreev, V. (Lebedev Inst.) ; Arratia, M. (UC, Riverside) ; Aushev, V. (Taras Shevchenko U.) ; Baghdasaryan, A. (Yerevan Phys. Inst.) ; Baty, A. (Rice U.) ; Begzsuren, K. (Ulaanbaatar U.) ; Behnke, O. (DESY) ; Belousov, A. (Lebedev Inst.) ; Bertolin, A. (Padua U.) ; Bloch, I. (DESY, Zeuthen) ; Boudry, V. (Ecole Polytechnique) ; Brandt, G. (Gottingen U., II. Phys. Inst.) ; Brock, I. (Bonn U. ; LBL, Berkeley) ; Brook, N.H. (Bath U. ; University Coll. London) ; Brugnera, R. (Padua U.) ; Bruni, A. (INFN, Bologna ; U. Bologna, DIFA) ; Buniatyan, A. (Birmingham U.) ; Bussey, P.J. (Glasgow U.) ; Bystritskaya, L. (Moscow, ITEP) ; Caldwell, A. (Munich, Max Planck Inst.) ; Campbell, A.J. (DESY) ; Avila, K.B. Cantun (CINVESTAV, IPN) ; Catterall, C.D. (York U., Canada) ; Cerny, K. (Joint Lab. Optics, Olomouc) ; Chekelian, V. (Munich, Max Planck Inst.) ; Chen, Z. (Shandong U.) ; Chwastowski, J. (Cracow, INP) ; Ciborowski, J. (Lodz U. ; Warsaw U.) ; Ciesielski, R. (DESY ; Rockefeller U.) ; Contreras, J.G. (CINVESTAV, IPN) ; Cooper-Sarkar, A.M. (Oxford U.) ; Corradi, M. (INFN, Bologna ; U. Bologna, DIFA ; INFN, Rome) ; Mendez, L. Cunqueiro (Oak Ridge) ; Currie, J. (Durham U., IPPP) ; Cvach, J. (Prague, Inst. Phys.) ; Dainton, J.B. (Liverpool U.) ; Daum, K. (Wuppertal U.) ; Dementiev, R.K. (SINP, Moscow) ; Deshpande, A. (Stony Brook U.) ; Diaconu, C. (Marseille, CPPM) ; Dusini, S. (Padua U.) ; Eckerlin, G. (DESY) ; Egli, S. (PSI, Villigen) ; Elsen, E. (DESY) ; Favart, L. (Brussels U., IIHE) ; Fedotov, A. (Moscow, ITEP) ; Feltesse, J. (IRFU, SPP, Saclay) ; Ferrando, J. (DESY) ; Fleischer, M. (DESY) ; Fomenko, A. (Lebedev Inst.) ; Foster, B. (Hamburg U. ; DESY ; Oxford U.) ; Gal, C. (Stony Brook U.) ; Gallo, E. (Hamburg U. ; DESY) ; Gangadharan, D. (Heidelberg U. ; Houston U.) ; Garfagnini, A. (Padua U.) ; Gayler, J. (DESY) ; Ridder, A. Gehrmann-De (Zurich U. ; Zurich, ETH) ; Gehrmann, T. (Zurich U.) ; Geiser, A. (DESY) ; Gladilin, L.K. (SINP, Moscow) ; Glover, E.W. N. (Durham U., IPPP) ; Goerlich, L. (Cracow, INP) ; Gogitidze, N. (Lebedev Inst.) ; Golubkov, Yu. A. (SINP, Moscow) ; Gouzevitch, M. (IP2I, Lyon) ; Grab, C. (Zurich, ETH) ; Greenshaw, T. (Liverpool U.) ; Grindhammer, G. (Munich, Max Planck Inst.) ; Grzelak, G. (Warsaw U.) ; Gwenlan, C. (Oxford U.) ; Haidt, D. (DESY) ; Henderson, R.C. W. (Lancaster U.) ; Hladký, J. (Prague, Inst. Phys.) ; Hochman, D. (Weizmann Inst.) ; Hoffmann, D. (Marseille, CPPM) ; Horisberger, R. (PSI, Villigen) ; Hreus, T. (Zurich U.) ; Huber, F. (Heidelberg U.) ; Huss, A. (CERN) ; Jacobs, P.M. (LBL, Berkeley) ; Jacquet, M. (IJCLab, Orsay) ; Janssen, T. (Brussels U., IIHE) ; Jomhari, N.Z. (DESY) ; Jung, A.W. (Purdue U.) ; Jung, H. (DESY) ; Kadenko, I. (Taras Shevchenko U.) ; Kapichine, M. (Dubna, JINR) ; Karshon, U. (Weizmann Inst.) ; Katzy, J. (DESY) ; Kaur, P. (SLIET, Longowal) ; Kiesling, C. (Munich, Max Planck Inst.) ; Klanner, R. (Hamburg U.) ; Klein, M. (Liverpool U.) ; Klein, U. (DESY ; Liverpool U.) ; Kleinwort, C. (DESY) ; Klest, H.T. (Stony Brook U.) ; Kogler, R. (DESY) ; Korzhavina, I.A. (SINP, Moscow) ; Kostka, P. (Liverpool U.) ; Kovalchuk, N. (Hamburg U.) ; Kretzschmar, J. (Liverpool U.) ; Krücker, D. (DESY) ; Krüger, K. (DESY) ; Kuze, M. (Tokyo Inst. Tech.) ; Landon, M.P. J. (Queen Mary, U. of London) ; Lange, W. (DESY, Zeuthen) ; Laycock, P. (Brookhaven) ; Lee, S.H. (Michigan U.) ; Levchenko, B.B. (SINP, Moscow) ; Levonian, S. (DESY) ; Levy, A. (Tel Aviv U.) ; Li, W. (Rice U.) ; Lin, J. (Rice U.) ; Lipka, K. (DESY) ; List, B. (DESY) ; List, J. (DESY) ; Lobodzinski, B. (Munich, Max Planck Inst.) ; Löhr, B. (DESY) ; Lohrmann, E. (Hamburg U.) ; Long, O.R. (UC, Riverside) ; Longhin, A. (Padua U.) ; Lorkowski, F. (DESY) ; Lukina, O.Yu. (SINP, Moscow) ; Makarenko, I. (DESY) ; Malinovski, E. (Lebedev Inst.) ; Malka, J. (DESY ; Hamburg U.) ; Martyn, H.-U. (RWTH Aachen U.) ; Masciocchi, S. (Darmstadt, GSI ; Heidelberg U.) ; Maxfield, S.J. (Liverpool U.) ; Mehta, A. (Liverpool U.) ; Meyer, A.B. (DESY) ; Meyer, J. (DESY) ; Mikocki, S. (Cracow, INP) ; Mikuni, V.M. (LBL, Berkeley) ; Mondal, M.M. (Stony Brook U.) ; Morgan, T. (Durham U., IPPP) ; Morozov, A. (Dubna, JINR) ; Mueller, K. (Zurich U.) ; Nachman, B. (LBL, Berkeley) ; Nagano, K. (KEK, Tsukuba) ; Nam, J.D. (Temple U.) ; Naumann, Th. (DESY, Zeuthen) ; Newman, P.R. (Birmingham U.) ; Niebuhr, C. (DESY) ; Niehues, J. (Durham U., IPPP) ; Nowak, G. (Cracow, INP) ; Olsson, J.E. (DESY) ; Onishchuk, Yu. (Taras Shevchenko U.) ; Ozerov, D. (PSI, Villigen) ; Park, S. (Stony Brook U.) ; Pascaud, C. (IJCLab, Orsay) ; Patel, G.D. (Liverpool U.) ; Paul, E. (Bonn U. ; LBL, Berkeley) ; Perez, E. (CERN) ; Petrukhin, A. (IP2I, Lyon) ; Picuric, I. (Montenegro U.) ; Pidhurskyi, I. (Frankfurt U., Inst. Kernphys.) ; Pires, J. (LIP, Lisbon ; Lisbon U.) ; Pitzl, D. (DESY) ; Polifka, R. (Charles U.) ; Polini, A. (INFN, Bologna ; U. Bologna, DIFA) ; Preins, S. (UC, Riverside) ; Przybycień, M. (AGH-UST, Cracow) ; Quintero, A. (Temple U.) ; Rabbertz, K. (KIT, Karlsruhe) ; Radescu, V. (Oxford U.) ; Raicevic, N. (Montenegro U.) ; Ravdandorj, T. (Ulaanbaatar U.) ; Reimer, P. (Prague, Inst. Phys.) ; Rizvi, E. (Queen Mary, U. of London) ; Robmann, P. (Zurich U.) ; Roosen, R. (Brussels U., IIHE) ; Rostovtsev, A. (IITP, Moscow) ; Rotaru, M. (Bucharest, IFIN-HH) ; Ruspa, M. (Piemonte Orientale U., Alessandria) ; Sankey, D.P. C. (Rutherford) ; Sauter, M. (Heidelberg U.) ; Sauvan, E. (Annecy, LAPP ; Marseille, CPPM) ; Schmitt, S. (DESY) ; Schmookler, B.A. (Stony Brook U.) ; Schneekloth, U. (DESY) ; Schoeffel, L. (IRFU, SPP, Saclay) ; Schöning, A. (Heidelberg U.) ; Schörner-Sadenius, T. (DESY) ; Sefkow, F. (DESY) ; Selyuzhenkov, I. (Darmstadt, GSI) ; Shchedrolosiev, M. (DESY) ; Shcheglova, L.M. (SINP, Moscow) ; Shushkevich, S. (SINP, Moscow) ; Skillicorn, I.O. (Glasgow U.) ; Słomiński, W. (Jagiellonian U.) ; Solano, A. (INFN, Turin) ; Soloviev, Y. (Lebedev Inst.) ; Sopicki, P. (Cracow, INP) ; South, D. (DESY) ; Spaskov, V. (Dubna, JINR) ; Specka, A. (Ecole Polytechnique) ; Stanco, L. (Padua U.) ; Steder, M. (DESY) ; Stefaniuk, N. (DESY) ; Stella, B. (Rome III U. ; INFN, Rome3) ; Straumann, U. (Zurich U.) ; Sun, C. (Shandong U.) ; Surrow, B. (Temple U.) ; Sutton, M.R. (Sussex U.) ; Sykora, T. (Charles U.) ; Thompson, P.D. (Birmingham U.) ; Tokushuku, K. (KEK, Tsukuba) ; Traynor, D. (Queen Mary, U. of London) ; Tseepeldorj, B. (Ulaanbaatar U.) ; Tu, Z. (Brookhaven) ; Turkot, O. (DESY ; Hamburg U.) ; Tymieniecka, T. (Warsaw, Inst. Nucl. Studies) ; Valkárová, A. (Charles U.) ; Vallée, C. (Marseille, CPPM) ; Van Mechelen, P. (Brussels U., IIHE) ; Verbytskyi, A. (Munich, Max Planck Inst.) ; Wan Abdullah, W.A. T. (Malaya U.) ; Wegener, D. (Dortmund U.) ; Wichmann, K. (DESY) ; Wing, M. (University Coll. London) ; Wünsch, E. (DESY) ; Yamada, S. (KEK, Tsukuba) ; Yamazaki, Y. (Kobe U.) ; Žáček, J. (Charles U.) ; Żarnecki, A.F. (Warsaw U.) ; Zenaiev, O. (CERN ; DESY) ; Zhang, J. (Shandong U.) ; Zhang, Z. (IJCLab, Orsay) ; Žlebčík, R. (Charles U.) ; Zohrabyan, H. (Yerevan Phys. Inst.) ; Zomer, F. (IJCLab, Orsay) |
Publication | 2022-03-21 |
Imprint | 2021-12-02 |
Number of pages | 43 |
Note | 43 pages, 24 figures, to be submitted to Eur. Phys. J. C |
In: | Eur. Phys. J. C 82 (2022) 243 |
DOI | 10.1140/epjc/s10052-022-10083-9 |
Subject category | hep-ph ; Particle Physics - Phenomenology ; hep-ex ; Particle Physics - Experiment |
Accelerator/Facility, Experiment | DESY HERA H1 DESY HERA ; ZEUS |
Abstract | The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in 2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of the HERA data on inclusive deep inelastic $ep$ scattering together with jet data as published by the H1 and ZEUS collaborations. A perturbative QCD fit, simultaneously of $\alpha_s(M_Z^2)$ and and the PDFs, was performed with the result $\alpha_s(M_Z^2) = 0.1156 \pm 0.0011 {\rm (exp)} ^{+0.0001}_{-0.0002} {\rm (model}$${\rm + parameterisation)} \pm 0.0029 {\rm (scale)}$. The PDF sets of HERAPDF2.0Jets NNLO were determined with separate fits using two fixed values of $\alpha_s(M_Z^2)$, $\alpha_s(M_Z^2)=0.1155$ and $0.118$, since the latter value was already chosen for the published HERAPDF2.0 NNLO analysis based on HERA inclusive DIS data only. The different sets of PDFs are presented, evaluated and compared. The consistency of the PDFs determined with and without the jet data demonstrates the consistency of HERA inclusive and jet-production cross-section data. The inclusion of the jet data reduced the uncertainty on the gluon PDF. Predictions based on the PDFs of HERAPDF2.0Jets NNLO give an excellent description of the jet-production data used as input. |
Copyright/License | publication: (License: CC-BY-4.0), sponsored by SCOAP³ preprint: (License: CC BY 4.0) |