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CERN Accelerating science

Article
Report number arXiv:2403.09331 ; FERMILAB-PUB-24-0106
Title Up and Down Quark Structure of the Proton
Related titleUp and down quark structure of the proton
Author(s)

Abazov, V.M. (Dubna, JINR) ; Abbott, B. (Oklahoma U.) ; Acharya, B.S. (Tata Inst.) ; Adams, M. (Illinois U., Chicago) ; Adams, T. (Florida State U.) ; Agnew, J.P. (Manchester U.) ; Alexeev, G.D. (Dubna, JINR) ; Alkhazov, G. (St. Petersburg, INP) ; Alton, A. (Michigan U. ; Cray Research, Chippewa Falls) ; Askew, A. (Florida State U.) ; Atkins, S. (Louisiana Tech. U.) ; Augsten, K. (Prague, Tech. U.) ; Avila, C. (Andes U., Bogota) ; Badaud, F. (Clermont-Ferrand U.) ; Bagby, L. (Fermilab) ; Baldin, B. (Fermilab) ; Bandurin, D.V. (Virginia U.) ; Banerjee, S. (Tata Inst.) ; Barberis, E. (Northeastern U.) ; Baringer, P. (Kansas U.) ; Bartlett, J.F. (Fermilab) ; Bassler, U. (IRFU, Saclay) ; Bazterra, V. (Illinois U., Chicago) ; Bean, A. (Kansas U.) ; Begalli, M. (Rio de Janeiro State U.) ; Bellantoni, L. (Fermilab) ; Beri, S.B. (Panjab U., Chandigarh) ; Bernardi, G. (Paris U., VI-VII) ; Bernhard, R. (Freiburg U.) ; Bertram, I. (Lancaster U.) ; Besançon, M. (IRFU, Saclay) ; Beuselinck, R. (Imperial Coll., London) ; Bhat, P.C. (Fermilab) ; Bhatia, S. (Mississippi U.) ; Bhatnagar, V. (Panjab U., Chandigarh) ; Blazey, G. (Northern Illinois U.) ; Blessing, S. (Florida State U.) ; Bloom, K. (Nebraska U.) ; Boehnlein, A. (Fermilab) ; Boline, D. (SUNY, Stony Brook) ; Boos, E.E. (Moscow State U.) ; Borissov, G. (Lancaster U.) ; Brandt, A. (DAPNIA, Saclay ; Brookhaven ; Texas U., Arlington) ; Brandt, O. (Gottingen U., Zweites Phys. Inst.) ; Brochmann, M. (Washington U., Seattle) ; Brock, R. (Michigan State U.) ; Bross, A. (Fermilab) ; Brown, D. (Paris U., VI-VII) ; Bu, X.B. (Fermilab) ; Buehler, M. (Fermilab) ; Buescher, V. (Mainz U., Inst. Phys.) ; Bunichev, V. (Moscow State U.) ; Burdin, S. (Lancaster U. ; Liverpool U.) ; Buszello, C.P. (Uppsala U.) ; Camacho-Pérez, E. (CINVESTAV, IPN) ; Casey, B.C.K. (Fermilab) ; Castilla-Valdez, H. (CINVESTAV, IPN) ; Caughron, S. (Michigan State U.) ; Chakrabarti, S. (SUNY, Stony Brook) ; Chan, K.M. (Notre Dame U.) ; Chandra, A. (Rice U.) ; Chapon, E. (IRFU, Saclay) ; Chen, G. (Kansas U.) ; Cho, S.W. (Korea U., KODEL) ; Choi, S. (Korea U., KODEL) ; Choudhary, B. (Delhi U.) ; Cihangir, S. (Fermilab) ; Claes, D. (Nebraska U.) ; Clutter, J. (Kansas U.) ; Cooke, M. (Fermilab ; Dept. of Energy, Wash., D.C.) ; Cooper, W.E. (Fermilab) ; Corcoran, M. (Rice U.) ; Couderc, F. (IRFU, Saclay) ; Cousinou, M.-C. (Marseille, CPPM) ; Cuth, J. (Mainz U., Inst. Phys.) ; Cutts, D. (Brown U. ; Fermilab) ; Das, A. (Southern Methodist U.) ; Davies, G. (Imperial Coll., London) ; de Jong, S.J. (NIKHEF, Amsterdam ; Nijmegen U., IMAPP) ; De La Cruz-Burelo, E. (CINVESTAV, IPN) ; Déliot, F. (IRFU, Saclay) ; Demina, R. (Rochester U.) ; Denisov, D. (Brookhaven) ; Denisov, S.P. (Dubna U., Protvino Branch) ; Desai, S. (Fermilab) ; Deterre, C. (Manchester U. ; DESY) ; DeVaughan, K. (Nebraska U.) ; Diehl, H.T. (Fermilab) ; Diesburg, M. (Fermilab) ; Ding, P.F. (Manchester U.) ; Dominguez, A. (Nebraska U.) ; Drutskoy, A. (Moscow, ITEP ; Lebedev Inst.) ; Dubey, A. (Delhi U.) ; Dudko, L.V. (Moscow State U.) ; Duperrin, A. (Marseille, CPPM) ; Dutt, S. (Panjab U., Chandigarh) ; Eads, M. (Northern Illinois U.) ; Edmunds, D. (Michigan State U.) ; Ellison, J. (UC, Riverside) ; Elvira, V.D. (Fermilab) ; Enari, Y. (Paris U., VI-VII) ; Evans, H. (Indiana U.) ; Evdokimov, A. (Illinois U., Chicago) ; Evdokimov, V.N. (Dubna U., Protvino Branch) ; Fauré, A. (IRFU, Saclay) ; Feng, L. (Northern Illinois U.) ; Ferbel, T. (Rochester U.) ; Fiedler, F. (Mainz U., Inst. Phys.) ; Filthaut, F. (NIKHEF, Amsterdam ; Nijmegen U., IMAPP) ; Fisher, W. (Michigan State U.) ; Fisk, H.E. (Fermilab) ; Fortner, M. (Northern Illinois U.) ; Fox, H. (Lancaster U.) ; Franc, J. (Prague, Tech. U.) ; Fuess, S. (Fermilab) ; Garbincius, P.H. (Fermilab) ; Garcia-Bellido, A. (Rochester U.) ; García-González, J.A. (CINVESTAV, IPN) ; Gavrilov, V. (Moscow, ITEP) ; Geng, W. (Marseille, CPPM ; Michigan State U.) ; Gerber, C.E. (Illinois U., Chicago) ; Gershtein, Y. (Rutgers U., Piscataway) ; Ginther, G. (Fermilab) ; Golovanov, G. (Dubna, JINR) ; Grannis, P.D. (SUNY, Stony Brook) ; Greder, S. (Strasbourg, IPHC) ; Greenlee, H. (Fermilab) ; Grenier, G. (Lyon, IPN) ; Gris, Ph. (Clermont-Ferrand U.) ; Grivaz, J.-F. (Orsay, LAL) ; Grohsjean, A. (IRFU, Saclay ; DESY) ; Grünendahl, S. (Fermilab) ; Grünewald, M.W. (University Coll., Dublin) ; Guillemin, T. (Orsay, LAL) ; Gutierrez, G. (Fermilab) ; Gutierrez, P. (Oklahoma U.) ; Haley, J. (Oklahoma State U.) ; Han, L. (Hefei, CUST) ; Harder, K. (Manchester U.) ; Harel, A. (Rochester U.) ; Hauptman, J.M. (Iowa State U.) ; Hays, J. (Imperial Coll., London) ; Head, T. (Manchester U.) ; Hebbeker, T. (Aachen, Tech. Hochsch.) ; Hedin, D. (Northern Illinois U.) ; Hegab, H. (Oklahoma State U.) ; Heinson, A.P. (UC, Riverside) ; Heintz, U. (Brown U. ; Fermilab) ; Hensel, C. (Rio de Janeiro, CBPF) ; Heredia-De La Cruz, I. (CINVESTAV, IPN ; Unlisted, MX) ; Herner, K. (Fermilab) ; Hesketh, G. (Manchester U. ; University Coll. London) ; Hildreth, M.D. (Notre Dame U.) ; Hirosky, R. (Virginia U.) ; Hoang, T. (Florida State U.) ; Hobbs, J.D. (SUNY, Stony Brook) ; Hoeneisen, B. (San Francisco de Quito U.) ; Hogan, J. (Rice U.) ; Hohlfeld, M. (Mainz U., Inst. Phys.) ; Holzbauer, J.L. (Mississippi U.) ; Howley, I. (DAPNIA, Saclay ; Brookhaven ; Texas U., Arlington) ; Hubacek, Z. (Prague, Tech. U. ; IRFU, Saclay) ; Hynek, V. (Prague, Tech. U.) ; Iashvili, I. (SUNY, Buffalo) ; Ilchenko, Y. (Southern Methodist U.) ; Illingworth, R. (Fermilab) ; Ito, A.S. (Fermilab) ; Jabeen, S. (Fermilab ; Maryland U.) ; Jaffré, M. (Orsay, LAL) ; Jayasinghe, A. (Oklahoma U.) ; Jeong, M.S. (Korea U., KODEL) ; Jesik, R. (Imperial Coll., London) ; Jiang, P. (Hefei, CUST) ; Johns, K. (Arizona U.) ; Johnson, E. (Michigan State U.) ; Johnson, M. (Fermilab) ; Jonckheere, A. (Fermilab) ; Jonsson, P. (Imperial Coll., London) ; Joshi, J. (UC, Riverside) ; Jung, A.W. (Fermilab ; Purdue U., Chem. Dept.) ; Juste, A. (ICREA, Barcelona) ; Kajfasz, E. (Marseille, CPPM) ; Karmanov, D. (Moscow State U.) ; Katsanos, I. (Nebraska U.) ; Kaur, M. (Panjab U., Chandigarh) ; Kehoe, R. (Southern Methodist U.) ; Kermiche, S. (Marseille, CPPM) ; Khalatyan, N. (Fermilab) ; Khanov, A. (Oklahoma State U.) ; Kharchilava, A. (SUNY, Buffalo) ; Kharzheev, Y.N. (Dubna, JINR) ; Kiselevich, I. (Moscow, ITEP) ; Kohli, J.M. (Panjab U., Chandigarh) ; Kozelov, A.V. (Dubna U., Protvino Branch) ; Kraus, J. (Mississippi U.) ; Kumar, A. (SUNY, Buffalo) ; Kupco, A. (Prague, Inst. Phys.) ; Kurča, T. (Lyon, IPN) ; Kuzmin, V.A. (Moscow State U.) ; Lammers, S. (Indiana U.) ; Lebrun, P. (Lyon, IPN) ; Lee, H.S. (Korea U., KODEL) ; Lee, S.W. (Iowa State U.) ; Lee, W.M. (Fermilab) ; Lei, X. (Arizona U.) ; Lellouch, J. (Paris U., VI-VII) ; Li, D. (Paris U., VI-VII) ; Li, H. (Virginia U.) ; Li, L. (UC, Riverside) ; Li, Q.Z. (Fermilab) ; Lim, J.K. (Korea U., KODEL) ; Lincoln, D. (Fermilab) ; Linnemann, J. (Michigan State U.) ; Lipaev, V.V. (Dubna U., Protvino Branch) ; Lipton, R. (Fermilab) ; Liu, H. (Southern Methodist U.) ; Liu, Y. (Hefei, CUST) ; Lobodenko, A. (St. Petersburg, INP) ; Lokajicek, M. (Prague, Inst. Phys.) ; Lopes de Sa, R. (Fermilab) ; Luna-Garcia, R. (CINVESTAV, IPN) ; Lyon, A.L. (Fermilab) ; Maciel, A.K.A. (Rio de Janeiro, CBPF) ; Madar, R. (Freiburg U.) ; Magaña-Villalba, R. (CINVESTAV, IPN) ; Malik, S. (Nebraska U.) ; Malyshev, V.L. (Dubna, JINR) ; Mansour, J. (Gottingen U., Zweites Phys. Inst.) ; Martínez-Ortega, J. (CINVESTAV, IPN) ; McCarthy, R. (SUNY, Stony Brook) ; McGivern, C.L. (Manchester U.) ; Meijer, M.M. (NIKHEF, Amsterdam ; Nijmegen U., IMAPP) ; Melnitchouk, A. (Fermilab) ; Menezes, D. (Northern Illinois U.) ; Mercadante, P.G. (ABC Federal U.) ; Merkin, M. (Moscow State U.) ; Meyer, A. (Aachen, Tech. Hochsch.) ; Meyer, J. (Gottingen U., Zweites Phys. Inst. ; KIT, Karlsruhe, TP) ; Miconi, F. (Strasbourg, IPHC) ; Mondal, N.K. (Tata Inst.) ; Mulhearn, M. (Virginia U.) ; Nagy, E. (Marseille, CPPM) ; Narain, M. (Brown U. ; Fermilab) ; Nayyar, R. (Arizona U.) ; Neal, H.A. (Michigan U.) ; Negret, J.P. (Andes U., Bogota) ; Neustroev, P. (St. Petersburg, INP) ; Nguyen, H.T. (Virginia U.) ; Nunnemann, T. (Munich U.) ; Orduna, J. (Brown U. ; Fermilab) ; Osman, N. (Marseille, CPPM) ; Pal, A. (DAPNIA, Saclay ; Brookhaven ; Texas U., Arlington) ; Parashar, N. (Purdue U., Calumet) ; Parihar, V. (Brown U. ; Fermilab) ; Park, S.K. (Korea U., KODEL) ; Partridge, R. (Brown U. ; Fermilab ; SLAC) ; Parua, N. (Indiana U.) ; Patwa, A. (Brookhaven ; Dept. of Energy, Wash., D.C.) ; Penning, B. (Imperial Coll., London) ; Perfilov, M. (Moscow State U.) ; Peters, Y. (Manchester U.) ; Petridis, K. (Manchester U.) ; Petrillo, G. (Rochester U.) ; Pétroff, P. (Orsay, LAL) ; Pleier, M.-A. (Brookhaven) ; Podstavkov, V.M. (Fermilab) ; Popov, A.V. (Dubna U., Protvino Branch) ; Prewitt, M. (Rice U.) ; Price, D. (Manchester U.) ; Prokopenko, N. (Dubna U., Protvino Branch) ; Qian, J. (Michigan U.) ; Quadt, A. (Gottingen U., Zweites Phys. Inst.) ; Quinn, B. (Mississippi U.) ; Ratoff, P.N. (Lancaster U.) ; Razumov, I. (Princeton U.) ; Ripp-Baudot, I. (Strasbourg, IPHC) ; Rizatdinova, F. (Oklahoma State U.) ; Rominsky, M. (Fermilab) ; Ross, A. (Lancaster U.) ; Royon, C. (Kansas U.) ; Rubinov, P. (Fermilab) ; Ruchti, R. (Notre Dame U.) ; Sajot, G. (LPSC, Grenoble) ; Sánchez-Hernández, A. (CINVESTAV, IPN) ; Sanders, M.P. (Munich U.) ; Santos, A.S. (Rio de Janeiro, CBPF ; Sao Paulo, IFT) ; Savage, G. (Fermilab) ; Sawyer, L. (Louisiana Tech. U.) ; Scanlon, T. (Imperial Coll., London) ; Schamberger, R.D. (SUNY, Stony Brook) ; Scheglov, Y. (St. Petersburg, INP) ; Schellman, H. (Oregon State U. ; Northwestern U.) ; Schott, M. (Mainz U., Inst. Phys.) ; Schwanenberger, C. (Manchester U. ; DESY) ; Schwienhorst, R. (Michigan State U.) ; Sekaric, J. (Kansas U.) ; Severini, H. (Oklahoma U.) ; Shabalina, E. (Gottingen U., Zweites Phys. Inst.) ; Shary, V. (IRFU, Saclay) ; Shaw, S. (Manchester U.) ; Shchukin, A.A. (Dubna U., Protvino Branch) ; Simak, V. (Prague, Tech. U.) ; Skubic, P. (Oklahoma U.) ; Slattery, P. (Rochester U.) ; Snow, G.R. (Nebraska U.) ; Snow, J. (Langston U.) ; Snyder, S. (Brookhaven) ; Söldner-Rembold, S. (Manchester U.) ; Sonnenschein, L. (Aachen, Tech. Hochsch.) ; Soustruznik, K. (Charles U.) ; Stark, J. (LPSC, Grenoble) ; Stoyanova, D.A. (Dubna U., Protvino Branch) ; Strauss, M. (Oklahoma U.) ; Suter, L. (Manchester U.) ; Svoisky, P. (Virginia U.) ; Titov, M. (IRFU, Saclay) ; Tokmenin, V.V. (Dubna, JINR) ; Tsai, Y.-T. (Rochester U.) ; Tsybychev, D. (SUNY, Stony Brook) ; Tuchming, B. (IRFU, Saclay) ; Tully, C. (Princeton U.) ; Uvarov, L. (St. Petersburg, INP) ; Uvarov, S. (St. Petersburg, INP) ; Uzunyan, S. (Northern Illinois U.) ; Van Kooten, R. (Indiana U.) ; van Leeuwen, W.M. (NIKHEF, Amsterdam) ; Varelas, N. (Illinois U., Chicago) ; Varnes, E.W. (Arizona U.) ; Vasilyev, I.A. (Dubna U., Protvino Branch) ; Verkheev, A.Y. (Dubna, JINR) ; Vertogradov, L.S. (Dubna, JINR) ; Verzocchi, M. (Fermilab) ; Vesterinen, M. (Manchester U.) ; Vilanova, D. (IRFU, Saclay) ; Vokac, P. (Prague, Tech. U.) ; Wahl, H.D. (Florida State U.) ; Wang, C. (Hefei, CUST) ; Wang, M.H.L.S. (Fermilab) ; Warchol, J. (Notre Dame U.) ; Watts, G. (Washington U., Seattle) ; Wayne, M. (Notre Dame U.) ; Weichert, J. (Mainz U., Inst. Phys.) ; Welty-Rieger, L. (Northwestern U.) ; Williams, M.R.J. (Indiana U. ; CERN) ; Wilson, G.W. (Kansas U.) ; Wobisch, M. (Louisiana Tech. U.) ; Wood, D.R. (Northeastern U.) ; Wyatt, T.R. (Manchester U.) ; Xie, M. (Hefei, CUST) ; Xie, Y. (Fermilab) ; Yamada, R. (Fermilab) ; Yang, S. (Hefei, CUST) ; Yasuda, T. (Fermilab) ; Yatsunenko, Y.A. (Dubna, JINR) ; Ye, W. (SUNY, Stony Brook) ; Ye, Z. (Fermilab) ; Yin, H. (Fermilab) ; Yip, K. (Brookhaven) ; Youn, S.W. (Fermilab) ; Yu, J.M. (Michigan U.) ; Zennamo, J. (SUNY, Buffalo) ; Zhao, T.G. (Manchester U.) ; Zhou, B. (Michigan U.) ; Zhu, J. (Michigan U.) ; Zielinski, M. (Rochester U.) ; Zieminska, D. (Indiana U.) ; Zivkovic, L. (Paris U., VI-VII ; Belgrade, Inst. Phys.)

Publication 2024-11-01
Imprint 2024-03-14
Number of pages 9
In: Phys. Rev. D 110 (2024) L091101
DOI 10.1103/PhysRevD.110.L091101 (publication)
Subject category hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment FNAL E 0823
Abstract We measure proton structure parameters sensitive primarily to valence quarks using 8.6 fb$^{-1}$ of data collected by the D0 detector in $\sqrt{s}=1.96$ TeV $p\bar{p}$ collisions at the Fermilab Tevatron. We exploit the property of the forward-backward asymmetry in dilepton events to be factorized in to distinct structure parameters and electroweak quark-level asymmetries. Contributions to the asymmetry from $s$, $c$ and $b$ quarks, as well as from $u$ and $d$ quarks, are suppressed allowing valence $u$ and $d$ quarks to be separately determined. We find and $u$ to $d$ quark ratio near the peak values in the quark density distributions that is smaller than predictions from modern parton distribution functions.
Copyright/License preprint: (License: arXiv nonexclusive-distrib 1.0)
publication: © 2024 authors (License: CC BY 4.0), sponsored by SCOAP³



Corresponding record in: Inspire


 Записът е създаден на 2024-03-19, последна промяна на 2024-11-26


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