Probing nuclear gluons with heavy flavors at an Electron-Ion Collider

Conference · Wed Nov 09 00:00:00 EST 2016 · PoS

DOI:https://doi.org/10.22323/1.265.0143· OSTI ID:1483781

Chudakov, Eugene ^[1]; Higinbotham, Douglas  ^[1]; Hyde, Charles ^[2]; Furletov, Sergey ^[1]; Furletova, Yulia ^[1]; Nguyen, Dien ^[3]; Stratmann, Marco ^[4]; Strikman, Mark ^[5]; Weiss, Christian ^[1]; Yoshida, Rikutaro ^[1]

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1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
2. Old Dominion Univ., Norfolk, VA (United States)
3. Univ. of Virginia, Charlottesville, VA (United States)
4. Univ. of Tubingen, Tubingen, Germany
5. Pennsylvania State Univ., University Park, PA (United States)

We explore the feasibility of direct measurements of nuclear gluon densities using heavy-quark production (open charm, beauty) at a future Electron-Ion Collider (EIC). We focus on the regions x > 0.3 (EMC effect) and x ~ 0.05 -0.1 (antishadowing), where the nuclear modifications of the gluon density offer insight into non-nucleonic degrees of freedom and the QCD structure of nucleon-nucleon interactions. We describe the charm production rates and momentum distributions in nuclear deep-inelastic scattering (DIS) at large x_B, and comment on the possible methods for charm reconstruction using next-generation detectors at the EIC (pi/K identification, tracking, vertex detection).

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1483781
• Report Number(s): JLAB-THY-16-2329; DOE/OR/23177-3921; arXiv:1608.08686; R&D Project: 2016-LDRD-1
• Journal Information: PoS, Vol. DIS2016; Conference: DIS 2016, 11-15 Apr 2016. Hamburg, Germany
• Country of Publication: United States
• Language: English