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This content will become publicly available on July 18, 2018

Title: J / ψ Production and Polarization within a Jet

We study the production and polarization of J/Ψ mesons within a jet in proton-proton collisions at the LHC. Here, we define the J/Ψ-jet fragmentation function as a ratio of differential jet cross sections with and without the reconstructed J/Ψ in the jet. We also demonstrate that this is a very useful observable to help explore the J/Ψ production mechanism, and to differentiate between different NRQCD global fits based on inclusive J/Ψ cross sections. Moreover, we propose to measure the polarization of J/Ψ mesons inside the jet, which can provide even more stringent constraints for the heavy quarkonium production mechanism.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5]
  1. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy and Mani L. Bhaumik Inst. for Theoretical Physics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
  2. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States). Theory Center
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division; Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
  4. Northwestern Univ., Evanston, IL (United States). Dept. of Physics and Astronomy; Argonne National Lab. (ANL), Argonne, IL (United States). High Energy Physics Division
  5. The Ohio State Univ., Columbus, OH (United States). Dept. of Physics
Publication Date:
Report Number(s):
JLAB-THY-17-2414; DOE/OR/23177-4070; arXiv:1702.03287
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US1702767
Grant/Contract Number:
PHY-1720486; AC05-06OR23177; AC02-05CH11231; FG02-91ER40684; AC02-06CH11357; SC0011726
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 3; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1372225
Alternate Identifier(s):
OSTI ID: 1371807