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This content will become publicly available on February 26, 2019

Title: Double K S 0 photoproduction off the proton at CLAS

The $$f_0$$(1500) meson resonance is one of several contenders to have significant mixing with the lightest glueball. This resonance is well established from several previous experiments. Here we present the first photoproduction data for the $$f_0$$(1500) via decay into the $$K_S^0 K_S^0$$ channel using the CLAS detector. The reaction $$\gamma p$$ -> $$f_0 p$$ -> $$K_S^0 K_S^0 p$$, where J = 0, 2, was measured with photon energies from 2.7 to 5.1 GeV. A clear peak is seen at 1500 MeV in the background subtracted invariant mass spectra of the two kaons. This is enhanced if the measured 4-momentum transfer to the proton target is restricted to be less than 1.0 GeV2. By comparing data with simulations, it can be concluded that the peak at 1500 MeV is produced primarily at low t, which is consistent with a t-channel production mechanism.
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Publication Date:
Report Number(s):
JLAB-PHY-18-2631; DOE/OR/23177-4330; arXiv:1712.02184
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:
AC05-06OR23177; SC0016583
Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 97; Journal Issue: 2; Related Information: Data collected from the following experiments: JLAB-E04-005, JLAB-E04-017; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Research Org:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); George Washington Univ., Washington, DC (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
The CLAS Collaboration
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; meson photoproduction
OSTI Identifier:
1423775
Alternate Identifier(s):
OSTI ID: 1422651; OSTI ID: 1439887