Impact of inclusive hadron production data on nuclear gluon PDFs
| العنوان: | Impact of inclusive hadron production data on nuclear gluon PDFs |
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| المؤلفون: | NCTEQ Collaboration, Duwent��ster, P., Husov��, L. A., Je��o, T., Klasen, M., Kova����k, K., Kusina, A., Muzakka, K. F., Olness, F. I., Schienbein, I., Yu, J. Y. |
| المساهمون: | Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA) |
| المصدر: | Phys.Rev.D Phys.Rev.D, 2021, 104, pp.094005. ⟨10.1103/PhysRevD.104.094005⟩ Physical Review Physical Review D, 104 (9), Art. 094005 |
| بيانات النشر: | HAL CCSD, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Drell-Yan process, Particle physics, small-x, Nuclear Theory, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Hadron, FOS: Physical sciences, parton: distribution function, 01 natural sciences, 7. Clean energy, fragmentation function, Nuclear Theory (nucl-th), Z0: production, High Energy Physics - Phenomenology (hep-ph), ALICE, W: production, deep inelastic scattering, 0103 physical sciences, Production (economics), ddc:530, hadron: production, 010306 general physics, Nuclear Experiment, Brookhaven RHIC Coll, Physics, STAR, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, nucleus, gluon, PHENIX, Gluon, High Energy Physics - Phenomenology, CERN LHC Coll, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics::Experiment |
| الوصف: | 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 Large Hadron Collider (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 data sets, 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. The calculations are performed using a new implementation of the nCTEQ code (nCTEQ++) including a modified version of INCNLO which allows faster calculations using pre-computed grids. The extension of the nCTEQ15 analysis to include the SIH data represents an important step toward the next generation of PDFs. Comment: 23 pages, 17 figures, 5 tables. Minor updates to align with journal version |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2470-0010 0556-2821 1089-4918 1538-4500 1550-2368 1550-7998 2470-0029 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c31a2a8b21033d5019f1e09a08e7444Test https://hal.archives-ouvertes.fr/hal-03246317Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....7c31a2a8b21033d5019f1e09a08e7444 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24700010 05562821 10894918 15384500 15502368 15507998 24700029 |
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