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

Abstract

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).

Authors:

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)

Publication Date:: Sat Aug 01 00:00:00 EDT 2015

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

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

OSTI Identifier:: 1214155

Alternate Identifier(s):: OSTI ID: 1213277

Report Number(s):: JLAB-PHY-15-2131; DOE/OR/23177-3524; arXiv:1508.00888
Journal ID: ISSN 1550-7998; PRVDAQ; TRN: US1600858

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

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review. D, Particles, Fields, Gravitation and Cosmology

Additional Journal Information:: Journal Volume: 92; Journal Issue: 3; Journal ID: ISSN 1550-7998

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Kubarovsky, Valery P., and Voloshin, M. B. Formation of hidden-charm pentaquarks in photon-nucleon collisions.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevD.92.031502.

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                    Kubarovsky, Valery P., & Voloshin, M. B. Formation of hidden-charm pentaquarks in photon-nucleon collisions.  United States.  https://doi.org/10.1103/PhysRevD.92.031502

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                    Kubarovsky, Valery P., and Voloshin, M. B. Sat .  
"Formation of hidden-charm pentaquarks in photon-nucleon collisions".  United States.  https://doi.org/10.1103/PhysRevD.92.031502.  https://www.osti.gov/servlets/purl/1214155.

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@article{osti_1214155,

  title        = {Formation of hidden-charm pentaquarks in photon-nucleon collisions},

  author       = {Kubarovsky, Valery P. and Voloshin, M. B.},

  abstractNote = {The cross section for formation in γ + ρ collisions of the recently found hidden-charm pentaquark states Ρc(4380) and Ρc(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 Ρc resonances are composites of J/ψ and excited nucleon states with the quantum numbers of Ν(1440) and Ν(1520).},

  doi          = {10.1103/PhysRevD.92.031502},

  journal      = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},

  number       = 3,

  volume       = 92,

  place        = {United States},

  year         = {Sat Aug 01 00:00:00 EDT 2015},

  month        = {Sat Aug 01 00:00:00 EDT 2015}

}

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Similar Records

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

Abstract

Citation Formats

Observation of J / ψ p Resonances Consistent with Pentaquark States in Λ b 0 → J / ψ K − p Decays journal, August 2015

Charmonium journal, October 2008

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Review of Particle Physics journal, August 2014

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Λ b → J / ψ K 0 Λ reaction and a hidden-charm pentaquark state with strangeness journal, May 2016

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Remarks on the Pc structures and triangle singularities journal, October 2016

Analysis of the $${\frac{1}{2}}^{\pm }$$ 1 2 ± pentaquark states in the diquark model with QCD sum rules journal, January 2016

Analysis of $$P_c(4380)$$ P c ( 4380 ) and $$P_c(4450)$$ P c ( 4450 ) as pentaquark states in the diquark model with QCD sum rules journal, February 2016

A hidden-charm $$\varvec{S=-1}$$ S = - 1 pentaquark from the decay of $$\varvec{\varLambda _b}$$ Λ b into $$\varvec{J/\psi \, \eta \varLambda }$$ J / ψ η Λ states journal, August 2016

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