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Title: Studying the Pc(4450) resonance in J/ψ photoproduction off protons

In this study, a resonance-like structure, the Pc(4450), has recently been observed in the J/ψ p spectrum by the LHCb collaboration. We discuss the feasibility of detecting this structure in J/ψ photoproduction in the CLAS12 experiment at JLab. We present a first estimate of the upper limit for the branching ratio of the Pc(4450) to J/ψ p. Our estimates, which take into account the experimental resolution effects, lead to a sizable cross section close to the J/ψ production threshold, which makes future experiments covering this region very promising.
Authors:
 [1] ;  [2] ;  [3] ;  [3] ;  [4] ;  [5] ;  [6]
  1. Centro Mixto Univ. de Valencia-CSIC, Valencia (Spain); Indiana Univ., Bloomington, IN (United States)
  2. Univ. Nacional Autonoma de Mexico, (Mexico)
  3. Indiana Univ., Bloomington, IN (United States)
  4. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  5. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); INFN Sezione di Roma, Roma (Italy)
  6. Indiana Univ., Bloomington, IN (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Report Number(s):
JLAB-THY-16-2277; DOE/OR/23177-3826; arXiv:1606.08912
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:
AC05-06OR23177; FG02-87ER40365; PHY-1415459; NSF-PHY-1205019; FG0287ER40365
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 94; Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
Joint Physics Analysis Center
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1279884
Alternate Identifier(s):
OSTI ID: 1280190