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Title: Central exclusive production at RHIC

The present status and future plans of the physics program of Central Exclusive Production (CEP) at RHIC are described. The measurements are based on the detection of the forward protons from the Double Pomeron Exchange (DPE) process in the Roman Pot system and of the recoil system of charged particles from the DPE process measured in the STAR experiment’s Time Projection Chamber (TPC). The data described here were taken using polarized proton-proton collisions at ps = 200 GeV. The preliminary spectra of two pion and four pion invariant mass reconstructed by STAR TPC in central region of pseudo-rapidity | | < 1, are presented. Near future plans to take data with the current system at center-of-mass energy ps = 200 GeV and plans to upgrade the forward proton tagging sys- tem are presented. Also a possible addition of the Roman Pots to the sPHENIX detector is discussed.
Authors:
 [1] ;  [2] ;  [3]
  1. AGH - Univ. of Science and Technology, Krakow (Poland). Faculty of Physics and Applied Computer Science
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Polish Academy of Sciences (PAS), Krakow (Poland). Henryk Niewodniczanski Inst. of Nuclear Physics
Publication Date:
OSTI Identifier:
1172088
Report Number(s):
BNL--107412-2015-JA
Journal ID: ISSN 0217-751X; R&D Project: PO-001; KB0101022; TRN: US1500483
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
International Journal of Modern Physics A
Additional Journal Information:
Journal Volume: 29; Journal Issue: 28; Journal ID: ISSN 0217-751X
Publisher:
World Scientific
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS Diffraction; QCD; Double Pomeron Exchange (DPE) process