skip to main content

DOE PAGESDOE PAGES

Title: Evidence for simultaneous production of $$J/\psi$$ and $$\Upsilon$$ mesons

We report evidence for the simultaneous production of J/ψ and Υ mesons in 8.1 fb-1 of data collected at √s =1.96 TeV by the D0 experiment at the Fermilab pp- Tevatron Collider. Events with these characteristics are expected to be produced predominantly by gluon-gluon interactions. In our analysis, we extract the effective cross section characterizing the initial parton spatial distribution, σeff = 2.2 ± 0.7 (stat) ± 0.9 (syst) mb.
Authors:
 [1]
  1. Joint Inst. for Nuclear Research (JINR), Dubna (Russian Federation). et al.
Publication Date:
Report Number(s):
FERMILAB-PUB-15-485-E
Journal ID: ISSN 0031-9007; arXiv eprint number arXiv:1511.02428
Grant/Contract Number:
AC02-07CH11359
Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 116; Journal Issue: 8; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
D0 Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1239457
Alternate Identifier(s):
OSTI ID: 1230038