Production of baryons in proton-proton and lead-lead collisions at
Journal Article
·
· Physics Letters. B
The transverse momentum ( ) spectra of inclusively produced baryons are measured via the exclusive decay channel using the CMS detector at the LHC. Spectra are measured as a function of transverse momentum in proton-proton ( ) and lead-lead (PbPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV. The measurement is performed within the rapidity interval in the range of 5–20 in and 10–20 in PbPb collisions. The observed yields of for of 10–20 suggest a suppression in central PbPb collisions compared to collisions scaled by the number of nucleon-nucleon (NN) interactions. The production ratio in collisions is compared to theoretical models. In PbPb collisions, this ratio is consistent with the result from collisions in their common range.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Colorado, Boulder, CO (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25); Welch Foundation; Weston Havens Foundation
- Contributing Organization:
- The CMS Collaboration
- Grant/Contract Number:
- AC02-05CH11231; AC02-07CH11359; SC0010005
- OSTI ID:
- 1601514
- Alternate ID(s):
- OSTI ID: 1616136
OSTI ID: 1542165
OSTI ID: 1637334
- Report Number(s):
- CERN-EP--2019-102; CMS-HIN--18-009; FERMILAB-PUB--19-314-CMS; arXiv:1906.03322; S0370269320301325; 135328; PII: S0370269320301325
- Journal Information:
- Physics Letters. B, Journal Name: Physics Letters. B Journal Issue: C Vol. 803; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- Netherlands
- Language:
- English