Studying the $P_c(4450)$ Resonance in $J/\psi $ Photoproduction Off Protons

Hilller Binn, Astrid N.; Fernandez-Ramirez, Cesar; Jackura, Andrew; Mathieu, Vincent; Mokeev, Viktor; Pilloni, Alessandro; Szczepaniak, Adam P.

doi:10.1007/s00601-018-1426-3

Title: Studying the $$P_c(4450)$$ Resonance in $$J/\psi $$ Photoproduction Off Protons

Abstract

Here, the LHCb has reported the observation of a resonancelike structure, the $$P_c(4450)$$, in the $$J/\psi $$ p invariant masses. In our work, we discuss the feasibility of detecting this structure in $$J/\psi $$ photoproduction, e.g. in the measurements that have been approved for the experiments in Hall A/C and in Hall B with CLAS12 at JLab. Also the GlueX Collaboration has already reported preliminary results. We take into account the experimental resolution effects, and perform a global fit to world J/psi photoproduction data in order to study the possibility of observing the $$P_c(4450)$$ signal in future JLab data. We present a first estimate of the upper limit for the branching ratio of the $$P_c(4450)$$ into the $$J/\psi $$ p channel, and we study the angular distributions of the differential cross sections. This will shed light on the nature and couplings of the $$P_c(4450)$$ structure in the future photoproduction experiments.

Authors:

Hilller Binn, Astrid N. ^[1]; Fernandez-Ramirez, Cesar ^[2]; Jackura, Andrew ^[3]; Mathieu, Vincent ^[4]; Mokeev, Viktor ^[4];

^[4]; Szczepaniak, Adam P. ^[5]

Johannes Gutenberg Univ., Mainz (Germany)
Univ. Nacional Autonoma de Mexico, Mexico City (Mexico)
Indiana Univ., Bloomington, IN (United States)
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Indiana Univ., Bloomington, IN (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Publication Date:: Tue Jun 26 00:00:00 EDT 2018

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:: 1462042

Report Number(s):: JLAB-THY-18-2698; DOE/OR/23177-4505; arXiv:1801.10211
Journal ID: ISSN 0177-7963; PII: 1426; TRN: US1902094

Grant/Contract Number:: AC05-06OR23177

Resource Type:: Accepted Manuscript

Journal Name:: Few-Body Systems

Additional Journal Information:: Journal Volume: 59; Journal Issue: 5; Journal ID: ISSN 0177-7963

Publisher:: Springer

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats


                    Hilller Binn, Astrid N., Fernandez-Ramirez, Cesar, Jackura, Andrew, Mathieu, Vincent, Mokeev, Viktor, Pilloni, Alessandro, and Szczepaniak, Adam P. Studying the $P_c(4450)$ Resonance in $J/\psi $ Photoproduction Off Protons.  United States: N. p., 2018. 
Web.  doi:10.1007/s00601-018-1426-3.

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                    Hilller Binn, Astrid N., Fernandez-Ramirez, Cesar, Jackura, Andrew, Mathieu, Vincent, Mokeev, Viktor, Pilloni, Alessandro, & Szczepaniak, Adam P. Studying the $P_c(4450)$ Resonance in $J/\psi $ Photoproduction Off Protons.  United States.  https://doi.org/10.1007/s00601-018-1426-3

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                    Hilller Binn, Astrid N., Fernandez-Ramirez, Cesar, Jackura, Andrew, Mathieu, Vincent, Mokeev, Viktor, Pilloni, Alessandro, and Szczepaniak, Adam P. Tue .  
"Studying the $P_c(4450)$ Resonance in $J/\psi $ Photoproduction Off Protons".  United States.  https://doi.org/10.1007/s00601-018-1426-3.  https://www.osti.gov/servlets/purl/1462042.

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@article{osti_1462042,

  title        = {Studying the $P_c(4450)$ Resonance in $J/\psi $ Photoproduction Off Protons},

  author       = {Hilller Binn, Astrid N. and Fernandez-Ramirez, Cesar and Jackura, Andrew and Mathieu, Vincent and Mokeev, Viktor and Pilloni, Alessandro and Szczepaniak, Adam P.},

  abstractNote = {Here, the LHCb has reported the observation of a resonancelike structure, the $P_c(4450)$, in the $J/\psi $ p invariant masses. In our work, we discuss the feasibility of detecting this structure in $J/\psi $ photoproduction, e.g. in the measurements that have been approved for the experiments in Hall A/C and in Hall B with CLAS12 at JLab. Also the GlueX Collaboration has already reported preliminary results. We take into account the experimental resolution effects, and perform a global fit to world J/psi photoproduction data in order to study the possibility of observing the $P_c(4450)$ signal in future JLab data. We present a first estimate of the upper limit for the branching ratio of the $P_c(4450)$ into the $J/\psi $ p channel, and we study the angular distributions of the differential cross sections. This will shed light on the nature and couplings of the $P_c(4450)$ structure in the future photoproduction experiments.},

  doi          = {10.1007/s00601-018-1426-3},

  journal      = {Few-Body Systems},

  number       = 5,

  volume       = 59,

  place        = {United States},

  year         = {Tue Jun 26 00:00:00 EDT 2018},

  month        = {Tue Jun 26 00:00:00 EDT 2018}

}

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https://doi.org/10.1007/s00601-018-1426-3

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Cited by: 2 works

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Figures / Tables:

FIG. 1:: Model [18] contributions to the J/ψ photoproduction. The nonresonant background is modeled by an effective Pomeron exchange (a) while the resonant contribution of the P_c(4450) in the direct channel (b) is modeled by a Breit-Wigner amplitude.

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Title: Studying the $$P_c(4450)$$ Resonance in $$J/\psi $$ Photoproduction Off Protons

Abstract

Citation Formats

Figures / Tables:

Understanding the newly observed heavy pentaquark candidates journal, June 2016

Exclusive photoproduction of $J/\psi$ mesons at HERA journal, July 2002

Photoproduction of exotic baryon resonances journal, January 2016

The new pentaquarks in the diquark model journal, October 2015

Photoproduction of charm near threshold journal, January 2001

Recent results on the nucleon resonance spectrum and structure from the CLAS detector journal, January 2016

The Joint Physics Analysis Center website conference, January 2016

Testing the χ c 1 p composite nature of the P c (4450) journal, December 2015

New results from the studies of the N ( 1440 ) 1 / 2 + , N ( 1520 ) 3 / 2 − , and Δ ( 1620 ) 1 / 2 − resonances in exclusive e p → e ′ p ′ π + π − electroproduction with the CLAS detector journal, February 2016

Photoproduction of hidden charm pentaquark states P c + ( 4380 ) and P c + ( 4450 ) journal, August 2015

The pentaquark candidates in the dynamical diquark picture journal, October 2015

Studying the P c ( 4450 ) resonance in J / ψ photoproduction off protons journal, August 2016

Experimental study of the P 11 ( 1440 ) and D 13 ( 1520 ) resonances from the CLAS data on e p → e ′ π + π − p ′ journal, September 2012

Towards Exotic Hidden-Charm Pentaquarks in QCD journal, October 2015

Is the pentaquark doublet a hadronic molecule? journal, September 2015

How to reveal the exotic nature of the P c ( 4450 ) journal, October 2015

Strong decay mode J / ψ p of hidden charm pentaquark states P c + ( 4380 ) and P c + ( 4450 ) in Σ c D ¯ * molecular scenario journal, April 2016

LHCb pentaquark as a D ¯ * Σ c − D ¯ * Σ c * molecular state journal, November 2015

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

Identifying Exotic Hidden-Charm Pentaquarks journal, September 2015

Multiquark resonances journal, January 2017

Two-gluon form factor of the nucleon and J / ψ photoproduction journal, August 2002

D ¯ Σ c ⁎ and D ¯ ⁎ Σ c interactions and the LHCb hidden-charmed pentaquarks journal, February 2016

Narrow nucleon- ψ ( 2 S ) bound state and LHCb pentaquarks journal, March 2016

Photoproduction of the ψ Particles journal, August 1975

ψ and excess leptons in photoproduction conference, January 1976

Diffractive heavy quarkonium photoproduction and electroproduction in QCD journal, January 1998

Elastic J/ψ production at HERA journal, April 2006

Hidden charm pentaquarks: mass spectrum, magnetic moments and photocouplings journal, April 2019

Hidden charm pentaquarks: mass spectrum, magnetic moments, and photocouplings text, January 2018

Double Polarization Observables in Pentaquark Photoproduction text, January 2019

Heavy Quarkonium Production at Threshold from JLab to EIC conference, March 2018

Hidden-charm pentaquarks and their hidden-bottom and $B_c$-like partner states text, January 2017

Exotics: Heavy Pentaquarks and Tetraquarks text, January 2017

Hidden-charm Pentaquark Production at $e^+e^-$ Colliders text, January 2017

Understanding the newly observed heavy pentaquark candidates
journal, June 2016

Exclusive photoproduction of $J/\psi$ mesons at HERA
journal, July 2002

Photoproduction of exotic baryon resonances
journal, January 2016

The new pentaquarks in the diquark model
journal, October 2015

Photoproduction of charm near threshold
journal, January 2001

Recent results on the nucleon resonance spectrum and structure from the CLAS detector
journal, January 2016

The Joint Physics Analysis Center website
conference, January 2016

Testing the $χ_{c 1} p$ composite nature of the P c (4450)
journal, December 2015

New results from the studies of the $N (1440) 1 / 2^{+}, N (1520) 3 / 2^{-}$ , and $Δ (1620) 1 / 2^{-}$ resonances in exclusive $e p \to e^{'} p^{'} π^{+} π^{-}$ electroproduction with the CLAS detector
journal, February 2016

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journal, August 2015

The pentaquark candidates in the dynamical diquark picture
journal, October 2015

Studying the $P_{c} (4450)$ resonance in $J / ψ$ photoproduction off protons
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Experimental study of the $P_{11} (1440)$ and $D_{13} (1520)$ resonances from the CLAS data on $e p \to e^{'} π^{+} π^{-} p^{'}$
journal, September 2012

Towards Exotic Hidden-Charm Pentaquarks in QCD
journal, October 2015

Is the pentaquark doublet a hadronic molecule?
journal, September 2015

How to reveal the exotic nature of the $P_{c} (4450)$
journal, October 2015

Strong decay mode $J / ψ p$ of hidden charm pentaquark states $P_{c}^{+} (4380)$ and $P_{c}^{+} (4450)$ in $Σ_{c} {\bar{D}}^{*}$ molecular scenario
journal, April 2016

LHCb pentaquark as a ${\bar{D}}^{} Σ_{c} - {\bar{D}}^{} Σ_{c}^{*}$ molecular state
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Observation of $J / ψ p$ Resonances Consistent with Pentaquark States in $Λ_{b}^{0} \to J / ψ K^{-} p$ Decays
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Two-gluon form factor of the nucleon and $J / ψ$ photoproduction
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$\bar{D} Σ_{c}^{⁎}$ and ${\bar{D}}^{⁎} Σ_{c}$ interactions and the LHCb hidden-charmed pentaquarks
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journal, March 2016

Photoproduction of the $ψ$ Particles
journal, August 1975

ψ and excess leptons in photoproduction
conference, January 1976

Diffractive heavy quarkonium photoproduction and electroproduction in QCD
journal, January 1998

Elastic J/ψ production at HERA
journal, April 2006

Hidden charm pentaquarks: mass spectrum, magnetic moments and photocouplings
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text, January 2017

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