Formation of hidden-charm pentaquarks in photon-nucleon collisions

Kubarovsky, Valery P.; Voloshin, M. B.

doi:10.1103/PhysRevD.92.031502

Title: Formation of hidden-charm pentaquarks in photon-nucleon collisions

Journal Article · Sat Aug 01 00:00:00 EDT 2015 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.92.031502· OSTI ID:1214155

Kubarovsky, Valery P. ^[1]; Voloshin, M. B. ^[2]

Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Univ. of Minnesota, Minneapolis, MN (United States); Institute of Theoretical and Experimental Physics, Moscow (Russia)

The cross section for formation in γ + ρ collisions of the recently found hidden-charm pentaquark states Ρ_c(4380) and Ρ_c(4450) is discussed and estimated. The studies of these resonances in photon beam experiments can be complementary to those in the LHCb experiment setting, and may be more advantageous for measurement of their additional decay channels. It is pointed out that both the relative importance of such decays and the yield of the resonances in the γ + ρ collisions are sensitive to the internal dynamics of the pentaquarks and can resolve between theoretical models. Specific numerical estimates are discussed within a simple ‘baryocharmonium’ model, where the the observed Ρ_c resonances are composites of J/ψ and excited nucleon states with the quantum numbers of Ν(1440) and Ν(1520).

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0011842; AC05-06OR23177

OSTI ID:: 1214155

Alternate ID(s):: OSTI ID: 1213277

Report Number(s):: JLAB-PHY-15-2131; DOE/OR/23177-3524; arXiv:1508.00888; PRVDAQ; TRN: US1600858

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 92, Issue 3; ISSN 1550-7998

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 115 works

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References (9)

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