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Impact of inclusive hadron production data on nuclear gluon PDFs

Duwentäster, P.; Husová, L. A.; JeŽo, T.; Klasen, M.; Kovařík, K.; Kusina, A.; Muzakka, K. F.; Olness, F. I.; Schienbein, I.; Yu, J. Y.


A precise knowledge of nuclear parton distribution functions (nPDFs) is - among other things - important for the unambiguous interpretation of hard process data taken in pA and AA collisions at the Relativistic Heavy Ion Collider (RHIC) and the LHC. The available fixed target data for deep inelastic scattering (DIS) and Drell-Yan (DY) lepton pair production mainly constrain the light quark distributions. It is hence crucial to include more and more collider data in global analyses of nPDFs in order to better pin down the different parton flavors, in particular the gluon distribution at small x. To help constrain the nuclear gluon PDF, we extend the nCTEQ15 analysis by including single inclusive hadron (SIH) production data from RHIC (PHENIX and STAR) and LHC (ALICE). In addition to the DIS, DY, and SIH datasets, we will also include LHC W / Z production data. As the SIH calculation is dependent on hadronic fragmentation functions (FFs), we use a variety of FFs available in the literature to properly estimate this source of uncertainty. We study the impact of these data on the PDFs and compare with both the nCTEQ15 and nCTEQ15WZ sets. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000140684
Veröffentlicht am 06.12.2021
DOI: 10.1103/PhysRevD.104.094005
Zitationen: 11
Web of Science
Zitationen: 10
Zitationen: 14
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2470-0010, 0556-2821, 1089-4918, 1538-4500, 1550-2368, 1550-7998, 2470-0029
KITopen-ID: 1000140684
Erschienen in Physical Review D
Verlag American Physical Society (APS)
Band 104
Heft 9
Seiten Art. 094005
Vorab online veröffentlicht am 05.11.2021
Nachgewiesen in Scopus
Web of Science
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