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Up and down quark structure of the proton

D0 Collaboration; Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Agnew, J. P.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Askew, A.; Atkins, S.; Augsten, K.; Avila, C.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; ... mehr

Abstract:

We report an improved measurement of the valence u and d quark distributions from the forward-backward asymmetry in the Drell-Yan process using 8.6 fb1 of data collected with the D0 detector in p p¯ collisions at s = 1.96. This analysis provides the values of new structure parameters that are directly related to the valence up and down quark distributions in the proton. In other experimental results measuring the quark content of the proton, d quark contributions are mixed with those from other quark flavors. In this measurement, the u and d quark contributions are separately extracted by applying a factorization of the QCD and electroweak portions of the forward-backward asymmetry.

Zugehörige Institution(en) am KIT Scientific Computing Center (SCC)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 11.2024
Sprache Englisch
Identifikator ISSN: 2470-0010, 2470-0029
KITopen-ID: 1000178307
Erschienen in Physical Review D
Verlag American Physical Society (APS)
Band 110
Heft 9
Seiten L091101
Vorab online veröffentlicht am 07.11.2024
Nachgewiesen in Dimensions
OpenAlex
Scopus
Web of Science

Verlagsausgabe §
DOI: 10.5445/IR/1000178307
Veröffentlicht am 21.01.2025
Seitenaufrufe: 37
seit 21.01.2025
Downloads: 19
seit 24.01.2025
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