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Title: phi-meson photoproduction on Hydrogen in the neutral decay mode

We report the first measurement of the photoproduction cross section of the $$\phi$$ meson in its neutral decay mode in the reaction $$\gamma p \to p\phi(K_SK_L)$$. The experiment was performed with a tagged photon beam of energy $$1.6 \le E_\gamma \le 3.6$$ GeV incident on a liquid hydrogen target of the CLAS spectrometer at the Thomas Jefferson National Accelerator Facility. The $$p \phi$$ final state is identified via reconstruction of $$K_S$$ in the invariant mass of two oppositely charged pions and by requiring the missing particle in the reaction $$\gamma p \to p K_S X$$ to be $$K_L$$. The presented results significantly enlarge the existing data on $$\phi$$-photoproduction. These data, combined with the data from the charged decay mode, will help to constrain different mechanisms of $$\phi$$ photoproduction.
 [1] ;  [1] ;  [2] ;  [3] ;  [1]
  1. ODU
  2. JLAB
  3. UVA
Publication Date:
OSTI Identifier:
Report Number(s):
JLAB-PHY-13-1769; DOE/OR/23177-2686; arXiv:1308.1363
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys. Rev. C; Journal Volume: 89; Journal Issue: 05
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Energy Research (ER)
Country of Publication:
United States