Observation of a narrow structure in 1 H( γ , KS0 ) X via interference with φ -meson production

Amaryan, M. J.; Gavalian, G.; Nepali, C.; Polyakov, M. V.; Azimov, Ya.; Briscoe, W. J.; Dodge, G. E.; Hyde, C. E.; Klein, F.; Kuznetsov, V.; Strakovsky, I.; Zhang, J.

doi:10.1103/PhysRevC.85.035209

Title: Observation of a narrow structure in $^{1}$ H( $γ$ , $K_{S}^{0}$ ) $X$ via interference with $φ$ -meson production

Abstract

We report observation of a narrow peak structure at ≈1.54 GeV with a Gaussian width σ = 6 MeV in the missing mass of K_S in the reaction γ + p → pK_SK_L. The observed structure may be due to the interference between a strange (or antistrange) baryon resonance in the pK_L system and the φ(K_SK_L) photoproduction leading to the same final state. The statistical significance of the observed excess of events estimated as the log-likelihood ratio of the resonant signal + background hypothesis and the φ-production-based background-only hypothesis corresponds to 5.3σ.

Authors:: Amaryan, M. J.; Gavalian, G.; Nepali, C.; Polyakov, M. V.; Azimov, Ya.; Briscoe, W. J.; Dodge, G. E.; Hyde, C. E.; Klein, F.; Kuznetsov, V.; Strakovsky, I.; Zhang, J.

Publication Date:: Thu Mar 01 00:00:00 EST 2012

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

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1038249

Report Number(s):: JLAB-PHY-12-1500; DOE/OR/23177-2042; arXiv:1110.3325
Journal ID: ISSN 0556-2813; PRVCAN; TRN: US1201835

Grant/Contract Number:: AC05-06OR23177

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C, Nuclear Physics

Additional Journal Information:: Journal Volume: 85; Journal Issue: 3; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BARYONS; HYPOTHESIS; MISSING MASS; PHOTOPRODUCTION; PRODUCTION

Citation Formats


                    Amaryan, M. J., Gavalian, G., Nepali, C., Polyakov, M. V., Azimov, Ya., Briscoe, W. J., Dodge, G. E., Hyde, C. E., Klein, F., Kuznetsov, V., Strakovsky, I., and Zhang, J. Observation of a narrow structure in 1 H( γ , KS0 ) X via interference with φ -meson production.  United States: N. p., 2012. 
Web.  doi:10.1103/PhysRevC.85.035209.

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                    Amaryan, M. J., Gavalian, G., Nepali, C., Polyakov, M. V., Azimov, Ya., Briscoe, W. J., Dodge, G. E., Hyde, C. E., Klein, F., Kuznetsov, V., Strakovsky, I., & Zhang, J. Observation of a narrow structure in 1 H( γ , KS0 ) X via interference with φ -meson production.  United States.  https://doi.org/10.1103/PhysRevC.85.035209

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                    Amaryan, M. J., Gavalian, G., Nepali, C., Polyakov, M. V., Azimov, Ya., Briscoe, W. J., Dodge, G. E., Hyde, C. E., Klein, F., Kuznetsov, V., Strakovsky, I., and Zhang, J. Thu .  
"Observation of a narrow structure in 1 H( γ , KS0 ) X via interference with φ -meson production".  United States.  https://doi.org/10.1103/PhysRevC.85.035209.  https://www.osti.gov/servlets/purl/1038249.

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@article{osti_1038249,

  title        = {Observation of a narrow structure in 1 H( γ , KS0 ) X via interference with φ -meson production},

  author       = {Amaryan, M. J. and Gavalian, G. and Nepali, C. and Polyakov, M. V. and Azimov, Ya. and Briscoe, W. J. and Dodge, G. E. and Hyde, C. E. and Klein, F. and Kuznetsov, V. and Strakovsky, I. and Zhang, J.},

  abstractNote = {We report observation of a narrow peak structure at ≈1.54 GeV with a Gaussian width σ = 6 MeV in the missing mass of KS in the reaction γ + p → pKSKL. The observed structure may be due to the interference between a strange (or antistrange) baryon resonance in the pKL system and the φ(KSKL) photoproduction leading to the same final state. The statistical significance of the observed excess of events estimated as the log-likelihood ratio of the resonant signal + background hypothesis and the φ-production-based background-only hypothesis corresponds to 5.3σ.},

  doi          = {10.1103/PhysRevC.85.035209},

  journal      = {Physical Review C, Nuclear Physics},

  number       = 3,

  volume       = 85,

  place        = {United States},

  year         = {Thu Mar 01 00:00:00 EST 2012},

  month        = {Thu Mar 01 00:00:00 EST 2012}

}

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Works referencing / citing this record:

Present status on experimental search for pentaquarks
journal, May 2014

Liu, Tianbo; Mao, Yajun; Ma, Bo-Qiang
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Title: Observation of a narrow structure in 1 H( γ , K S 0 ) X via interference with φ -meson production

Abstract

Citation Formats

Exotic anti-decuplet of baryons: prediction from chiral solitons journal, September 1997

Evidence for a Narrow S = + 1 Baryon Resonance in Photoproduction from the Neutron journal, July 2003

Observation of a baryon resonance with positive strangeness in K + collisions with Xe nuclei journal, September 2003

Observation of an Exotic S = + 1 Baryon in Exclusive Photoproduction from the Deuteron journal, December 2003

Observation of an Exotic Baryon with S = + 1 in Photoproduction from the Proton journal, January 2004

Evidence for the positive-strangeness pentaquark Θ+ in photoproduction with the SAPHIR detector at ELSA journal, October 2003

Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction journal, April 2004

Evidence for a narrow baryonic state decaying to K0Sp and K0Sp̄ in deep inelastic scattering at HERA journal, July 2004

Limits for the Central Production of Θ + and Ξ -- Pentaquarks in 920-GeV pA Collisions journal, November 2004

High statistics search for the θ + ( 1.54 ) pentaquark state journal, December 2004

Search for the pentaquark state in ψ ( 2 S ) and J / ψ decays to K S 0 pK − n̄ and K S 0 p ¯ K + n journal, July 2004

Search for pentaquark states in Z decays journal, October 2004

Search for Strange-Pentaquark Production in e + e − Annihilation at s = 10.58 GeV journal, July 2005

Search for the Θ + Pentaquark in the Reaction γ d → p K − K + n journal, June 2006

Search for the Θ + pentaquark in the reactions γ p → K ¯ 0 K + n and γ p → K ¯ 0 K 0 p journal, August 2006

Review of Particle Physics journal, July 2010

Experimental search for pentaquarks journal, October 2005

Have Pentaquark States been Seen? journal, April 2006

Explanation why the Θ + is seen in some experiments and not in others journal, October 2007

Evidence for the Θ + in the γ d → K + K − pn reaction by detecting K + K − pairs journal, February 2009

Further evidence for formation of a narrow baryon resonance with positive strangeness in K + collisions with Xe nuclei journal, January 2007

Formation of a narrow baryon resonance with positive strangeness in K + collisions with Xe nuclei journal, July 2010

Quantum interference of particles and resonances journal, January 2010

Exotic Θ + baryon from interference journal, October 2008

The CEBAF large acceptance spectrometer (CLAS) journal, May 2003

φ photoproduction near threshold with Okubo-Zweig-Iizuka evading φ NN interactions journal, January 1998

Spin effects and baryon resonance dynamics in φ-meson photoproduction at few GeV journal, June 2003

Near-Threshold Diffractive ϕ -Meson Photoproduction from the Proton journal, October 2005

Present status on experimental search for pentaquarks journal, May 2014

Title: Observation of a narrow structure in $^{1}$ H( $γ$ , $K_{S}^{0}$ ) $X$ via interference with $φ$ -meson production

Exotic anti-decuplet of baryons: prediction from chiral solitons
journal, September 1997

Evidence for a Narrow $S = + 1$ Baryon Resonance in Photoproduction from the Neutron
journal, July 2003

Observation of a baryon resonance with positive strangeness in K + collisions with Xe nuclei
journal, September 2003

Observation of an Exotic $S = + 1$ Baryon in Exclusive Photoproduction from the Deuteron
journal, December 2003

Observation of an Exotic Baryon with $S = + 1$ in Photoproduction from the Proton
journal, January 2004

Evidence for the positive-strangeness pentaquark Θ+ in photoproduction with the SAPHIR detector at ELSA
journal, October 2003

Evidence for a narrow |S|=1 baryon state at a mass of 1528 MeV in quasi-real photoproduction
journal, April 2004

Evidence for a narrow baryonic state decaying to K0Sp and K0Sp̄ in deep inelastic scattering at HERA
journal, July 2004

Limits for the Central Production of $Θ^{+}$ and $Ξ^{--}$ Pentaquarks in 920-GeV pA Collisions
journal, November 2004

High statistics search for the $θ^{+} (1.54)$ pentaquark state
journal, December 2004

Search for the pentaquark state in $ψ (2 S)$ and $J / ψ$ decays to $K_{S}^{0} {pK}^{-} n̄$ and $K_{S}^{0} \bar{p} K^{+} n$
journal, July 2004

Search for pentaquark states in Z decays
journal, October 2004

Search for Strange-Pentaquark Production in $e^{+} e^{-}$ Annihilation at $\sqrt{s} = 10.58 GeV$
journal, July 2005

Search for the $Θ^{+}$ Pentaquark in the Reaction $γ d \to p K^{-} K^{+} n$
journal, June 2006

Search for the $Θ^{+}$ pentaquark in the reactions $γ p \to {\bar{K}}^{0} K^{+} n$ and $γ p \to {\bar{K}}^{0} K^{0} p$
journal, August 2006

Review of Particle Physics
journal, July 2010

Experimental search for pentaquarks
journal, October 2005

Have Pentaquark States been Seen?
journal, April 2006

Explanation why the $Θ^{+}$ is seen in some experiments and not in others
journal, October 2007

Evidence for the $Θ^{+}$ in the $γ d \to K^{+} K^{-} pn$ reaction by detecting $K^{+} K^{-}$ pairs
journal, February 2009

Further evidence for formation of a narrow baryon resonance with positive strangeness in K + collisions with Xe nuclei
journal, January 2007

Formation of a narrow baryon resonance with positive strangeness in K + collisions with Xe nuclei
journal, July 2010

Quantum interference of particles and resonances
journal, January 2010

Exotic $Θ^{+}$ baryon from interference
journal, October 2008

The CEBAF large acceptance spectrometer (CLAS)
journal, May 2003

$φ$ photoproduction near threshold with Okubo-Zweig-Iizuka evading $φ NN$ interactions
journal, January 1998

Spin effects and baryon resonance dynamics in φ-meson photoproduction at few GeV
journal, June 2003

Near-Threshold Diffractive $ϕ$ -Meson Photoproduction from the Proton
journal, October 2005

Present status on experimental search for pentaquarks
journal, May 2014