nCTEQ PDFs at the LHC: Vector Boson Production in Heavy Ion Collisions

Conference · Fri Aug 16 00:00:00 EDT 2019 · PoS

DOI:https://doi.org/10.22323/1.352.0024· OSTI ID:1568858

Clark, D. B. ^[1]; Godat, E. ^[1]; Hobbs, T. J. ^[1]; Ježo, T. ^[2]; Kent, J. ^[1]; Keppel, C. ^[3]; Klasen, M. ^[4]; Kovařík, K. ^[4]; Kusina, A. ^[5]; Lyonnet, F. ^[1]; Morfin, J. G. ^[6]; Olness, F. I. ^[1]; Owens, J. F. ^[7]; Schienbein, I. ^[8]; Yu, J. Y. ^[8]

---

1. Southern Methodist U.
2. Zurich U.
3. Jefferson Lab
4. Munster U., ITP
5. Cracow, INP
6. Fermilab
7. Florida State U.
8. LPSC, Grenoble

Extraction of the strange quark PDF is a long-standing puzzle. We use the nCTEQ nPDFs with uncertainties to study the impact of the LHC W/Z production data on both the flavor differentiation and nuclear corrections; this complements the information from neutrino-DIS data. As the proton flavor determination is dependent on nuclear corrections (from heavy target DIS, for example), LHC heavy ion measurements can also help improve proton PDFs. We introduce a new implementation of the nCTEQ code (nCTEQ++) based on C++ which has a modular strucure and enables us to easily integrate programs such as HOPPET, APPLgrid, and MCFM. Using ApplGrids generated from MCFM, we use nCTEQ++ to perform a preliminary fit including the pPb LHC W/Z vector boson data.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: nCTEQ
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1568858
• Report Number(s): arXiv:1909.00452; FERMILAB-CONF-19-485-ND; oai:inspirehep.net:1752452
• Journal Information: PoS, Vol. DIS2019; Conference: 27th International Workshop on Deep Inelastic Scattering and Related Subjects, Torino, Italy, 04/08-04/12/2019
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS