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Study of proton parton distribution functions at high x using ZEUS data

At large values of x, the parton distribution functions (PDFs) of the proton are poorly constrained and there are considerable variations between different global fits. Data at such high x have already been published by the ZEUS Collaboration, but not yet used in PDF extractions. A technique for com...

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Bibliographic Details
Main Authors: Abt, Iris (Author) , Gangadharan, Dhevan (Author) , Masciocchi, Silvia (Author) , Onderwaater, Jacobus (Author)
Corporate Author: Deutsches Elektronen-Synchrotron, ZEUS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 26 June 2020
In: Physical review
Year: 2020, Volume: 101, Issue: 11
ISSN:2470-0029
DOI:10.1103/PhysRevD.101.112009
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.101.112009
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.101.112009
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Author Notes:I. Abt, L. Adamczyk, R. Aggarwal, V. Aushev, O. Behnke, U. Behrens, A. Bertolin, I. Bloch, I. Brock, N.H. Brook, R. Brugnera, A. Bruni, P.J. Bussey, A. Caldwell, M. Capua, C.D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A.M. Cooper-Sarkar, M. Corradi, R.K. Dementiev, S. Dusini, J. Ferrando, B. Foster, E. Gallo, D. Gangadharan, A. Garfagnini, A. Geiser, L. K. Gladilin, Yu.A. Golubkov, G. Grzelak, C. Gwenlan, D. Hochman, N. Z. Jomhari, I. Kadenko, S. Kananov, U. Karshon, P. Kaur, R. Klanner, U. Klein, I. A. Korzhavina, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, B.B. Levchenko, A. Levy, B. Löhr, A. Longhin, O.Yu. Lukina, I. Makarenko, J. Malka, S. Masciocchi, K. Nagano, J.D. Nam, J. Onderwaater, Yu. Onishchuk, E. Paul, I. Pidhurskyi, A. Polini, M. Przybycień, A. Quintero, M. Ruspa, D.H. Saxon, U. Schneekloth, T. Schörner-Sadenius, I. Selyuzhenkov, M. Shchedrolosiev, L. M. Shcheglova, I.O. Skillicorn, W. Słomiński, A. Solano, L. Stanco, N. Stefaniuk, P. Stopa, B. Surrow, J. Sztuk-Dambietz, E. Tassi, K. Tokushuku, M. Turcato, O. Turkot, T. Tymieniecka, A. Verbytskyi, W.A.T. Wan Abdullah, K. Wichmann, M. Wing, S. Yamada, Y. Yamazaki, A.F. Żarnecki, L. Zawiejski, and O. Zenaiev : (ZEUS Collaboration)
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Summary:At large values of x, the parton distribution functions (PDFs) of the proton are poorly constrained and there are considerable variations between different global fits. Data at such high x have already been published by the ZEUS Collaboration, but not yet used in PDF extractions. A technique for comparing predictions based on different PDF sets to the observed number of events in the ZEUS data is presented. It is applied to compare predictions from the most commonly used PDFs to published ZEUS data at high Bjorken x. A wide variation is found in the ability of the PDFs to predict the observed results. A scheme for including the ZEUS high-x data in future PDF extractions is discussed.
Item Description:Gesehen am 09.009.2020
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.101.112009

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