Beam asymmetry Σ for the photoproduction of η and η' mesons at Eγ=8.8GeV

doi:10.1103/PhysRevC.100.052201

Title: Beam asymmetry $Σ$ for the photoproduction of $η$ and $η^{'}$ mesons at $E_{γ} = 8.8 GeV$

Abstract

We report on the measurement of the beam asymmetry $$\Sigma$$ for the reactions $$\vec{\gamma}p\rightarrow p\eta$$ and $$\vec{\gamma}p \rightarrow p\eta^{\prime}$$ from the GlueX experiment, using an 8.2--8.8 GeV linearly polarized tagged photon beam incident on a liquid hydrogen target in Hall D at Jefferson Lab. These measurements are made as a function of momentum transfer $-t$, with significantly higher statistical precision than our earlier $$\eta$$ measurements, and are the first measurements of $$\eta^{\prime}$$ in this energy range. We compare the results to theoretical predictions based on $t$--channel quasi-particle exchange. We also compare the ratio of $$\Sigma_{\eta}$$ to $$\Sigma_{\eta^{\prime}}$$ to these models, as this ratio is predicted to be sensitive to the amount of $$s\bar{s}$$ exchange in the production. We find that photoproduction of both $$\eta$$ and $$\eta^{\prime}$$ is dominated by natural parity exchange with little dependence on $-t$.

Authors:

Adhikari, S.; Ali, A.; Amaryan, M.; Austregesilo, A.; Barbosa, F.; Barlow, J.; Barnes, A.; Barriga, E.; Barsotti, R.; Beattie, T. D.; Berdnikov, V. V.; Black, T.; Boeglin, W.; Boer, M.; Briscoe, W. J.; Britton, T.; Brooks, W. K.; Cannon, B. E.; Cao, N.; Chudakov, E. more »

Publication Date:: 2019-11-27

Research Org.:: Carnegie Mellon Univ., Pittsburgh, PA (United States); George Washington Univ., Washington, DC (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Univ. of Massachusetts, Amherst, MA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF); German Research Foundation, National Natural Science Foundation of China (NNSFC); GSI Helmholtzzentrum für Schwerionenforschung GmbH; Russian Foundation for Basic Research; UK Science and Technology Facilities Council; Chilean Comisión Nacional de Investigación Científica y Tecnológica; China Scholarship Council

Contributing Org.:: The GlueX Collaboration

OSTI Identifier:: 1575903

Alternate Identifier(s):: OSTI ID: 1594363; OSTI ID: 1641192; OSTI ID: 1659120

Report Number(s):: GlueX-Doc 4093; JLAB-PHY-19-3117; DOE/OR-23177-4859; arXiv:1908.05563
Journal ID: ISSN 2469-9985; PRVCAN; DE-AC05-06OR23177

Grant/Contract Number:: FG02-87ER40315; AC05-06OR23177; SC0016583; SAPPJ-2018-00021; FG02-88ER40415

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 100; Journal Issue: 5; Related Information: Supplemental information published with the article.; Journal ID: ISSN 2469-9985

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; photonuclear reactions; photoproduction

Citation Formats


                    Adhikari, S., Ali, A., Amaryan, M., Austregesilo, A., Barbosa, F., Barlow, J., Barnes, A., Barriga, E., Barsotti, R., Beattie, T. D., Berdnikov, V. V., Black, T., Boeglin, W., Boer, M., Briscoe, W. J., Britton, T., Brooks, W. K., Cannon, B. E., Cao, N., Chudakov, E., Cole, S., Cortes, O., Crede, V., Dalton, M. M., Daniels, T., Deur, A., Dobbs, S., Dolgolenko, A., Dotel, R., Dugger, M., Dzhygadlo, R., Egiyan, H., Erbora, T., Ernst, A., Eugenio, P., Fanelli, C., Fegan, S., Foda, A. M., Foote, J., Frye, J., Furletov, S., Gan, L., Gasparian, A., Gevorgyan, N., Gleason, C., Goetzen, K., Goncalves, A., Goryachev, V. S., Guo, L., Hakobyan, H., Hamdi, A., Huber, G. M., Hurley, A., Ireland, D. G., Ito, M. M., Jarvis, N. S., Jones, R. T., Kakoyan, V., Kalicy, G., Kamel, M., Kourkoumelis, C., Kuleshov, S., Larin, I., Lawrence, D., Lersch, D. I., Li, H., Li, W., Liu, B., Livingston, K., Lolos, G. J., Lyubovitskij, V., Mack, D., Marukyan, H., Mattione, P., Matveev, V., McCaughan, M., McCracken, M., McGinley, W., Meyer, C. A., Miskimen, R., Mitchell, R. E., Nerling, F., Ng, L., Ostrovidov, A. I., Papandreou, Z., Patsyuk, M., Paudel, C., Pauli, P., Pedroni, R., Pentchev, L., Peters, K. J., Phelps, W., Pooser, E., Qin, N., Reinhold, J., Ritchie, B. G., Robison, L., Romanov, D., Romero, C., Salgado, C., Schertz, A. M., Schumacher, R. A., Schwiening, J., Semenov, A. Yu., Semenova, I. A., Seth, K. K., Shen, X., Shepherd, M. R., Smith, E. S., Sober, D. I., Somov, A., Somov, S., Soto, O., Staib, M., Stevens, J. R., Strakovsky, I. I., Suresh, K., Tarasov, V. V., Teymurazyan, A., Thiel, A., Vasileiadis, G., Whitlatch, T., Wickramaarachchi, N., Williams, M., Xiao, T., Yang, Y., Zarling, J., Zhang, Z., Zhao, G., Zhou, Q., Zhou, X., and Zihlmann, B. Beam asymmetry Σ for the photoproduction of η and η' mesons at Eγ=8.8GeV.  United States: N. p., 2019. 
        Web.  doi:10.1103/PhysRevC.100.052201.

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                    Adhikari, S., Ali, A., Amaryan, M., Austregesilo, A., Barbosa, F., Barlow, J., Barnes, A., Barriga, E., Barsotti, R., Beattie, T. D., Berdnikov, V. V., Black, T., Boeglin, W., Boer, M., Briscoe, W. J., Britton, T., Brooks, W. K., Cannon, B. E., Cao, N., Chudakov, E., Cole, S., Cortes, O., Crede, V., Dalton, M. M., Daniels, T., Deur, A., Dobbs, S., Dolgolenko, A., Dotel, R., Dugger, M., Dzhygadlo, R., Egiyan, H., Erbora, T., Ernst, A., Eugenio, P., Fanelli, C., Fegan, S., Foda, A. M., Foote, J., Frye, J., Furletov, S., Gan, L., Gasparian, A., Gevorgyan, N., Gleason, C., Goetzen, K., Goncalves, A., Goryachev, V. S., Guo, L., Hakobyan, H., Hamdi, A., Huber, G. M., Hurley, A., Ireland, D. G., Ito, M. M., Jarvis, N. S., Jones, R. T., Kakoyan, V., Kalicy, G., Kamel, M., Kourkoumelis, C., Kuleshov, S., Larin, I., Lawrence, D., Lersch, D. I., Li, H., Li, W., Liu, B., Livingston, K., Lolos, G. J., Lyubovitskij, V., Mack, D., Marukyan, H., Mattione, P., Matveev, V., McCaughan, M., McCracken, M., McGinley, W., Meyer, C. A., Miskimen, R., Mitchell, R. E., Nerling, F., Ng, L., Ostrovidov, A. I., Papandreou, Z., Patsyuk, M., Paudel, C., Pauli, P., Pedroni, R., Pentchev, L., Peters, K. J., Phelps, W., Pooser, E., Qin, N., Reinhold, J., Ritchie, B. G., Robison, L., Romanov, D., Romero, C., Salgado, C., Schertz, A. M., Schumacher, R. A., Schwiening, J., Semenov, A. Yu., Semenova, I. A., Seth, K. K., Shen, X., Shepherd, M. R., Smith, E. S., Sober, D. I., Somov, A., Somov, S., Soto, O., Staib, M., Stevens, J. R., Strakovsky, I. I., Suresh, K., Tarasov, V. V., Teymurazyan, A., Thiel, A., Vasileiadis, G., Whitlatch, T., Wickramaarachchi, N., Williams, M., Xiao, T., Yang, Y., Zarling, J., Zhang, Z., Zhao, G., Zhou, Q., Zhou, X., & Zihlmann, B. Beam asymmetry Σ for the photoproduction of η and η' mesons at Eγ=8.8GeV.  United States.  doi:10.1103/PhysRevC.100.052201.

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                    Adhikari, S., Ali, A., Amaryan, M., Austregesilo, A., Barbosa, F., Barlow, J., Barnes, A., Barriga, E., Barsotti, R., Beattie, T. D., Berdnikov, V. V., Black, T., Boeglin, W., Boer, M., Briscoe, W. J., Britton, T., Brooks, W. K., Cannon, B. E., Cao, N., Chudakov, E., Cole, S., Cortes, O., Crede, V., Dalton, M. M., Daniels, T., Deur, A., Dobbs, S., Dolgolenko, A., Dotel, R., Dugger, M., Dzhygadlo, R., Egiyan, H., Erbora, T., Ernst, A., Eugenio, P., Fanelli, C., Fegan, S., Foda, A. M., Foote, J., Frye, J., Furletov, S., Gan, L., Gasparian, A., Gevorgyan, N., Gleason, C., Goetzen, K., Goncalves, A., Goryachev, V. S., Guo, L., Hakobyan, H., Hamdi, A., Huber, G. M., Hurley, A., Ireland, D. G., Ito, M. M., Jarvis, N. S., Jones, R. T., Kakoyan, V., Kalicy, G., Kamel, M., Kourkoumelis, C., Kuleshov, S., Larin, I., Lawrence, D., Lersch, D. I., Li, H., Li, W., Liu, B., Livingston, K., Lolos, G. J., Lyubovitskij, V., Mack, D., Marukyan, H., Mattione, P., Matveev, V., McCaughan, M., McCracken, M., McGinley, W., Meyer, C. A., Miskimen, R., Mitchell, R. E., Nerling, F., Ng, L., Ostrovidov, A. I., Papandreou, Z., Patsyuk, M., Paudel, C., Pauli, P., Pedroni, R., Pentchev, L., Peters, K. J., Phelps, W., Pooser, E., Qin, N., Reinhold, J., Ritchie, B. G., Robison, L., Romanov, D., Romero, C., Salgado, C., Schertz, A. M., Schumacher, R. A., Schwiening, J., Semenov, A. Yu., Semenova, I. A., Seth, K. K., Shen, X., Shepherd, M. R., Smith, E. S., Sober, D. I., Somov, A., Somov, S., Soto, O., Staib, M., Stevens, J. R., Strakovsky, I. I., Suresh, K., Tarasov, V. V., Teymurazyan, A., Thiel, A., Vasileiadis, G., Whitlatch, T., Wickramaarachchi, N., Williams, M., Xiao, T., Yang, Y., Zarling, J., Zhang, Z., Zhao, G., Zhou, Q., Zhou, X., and Zihlmann, B. Wed .  
        "Beam asymmetry Σ for the photoproduction of η and η' mesons at Eγ=8.8GeV".  United States.  doi:10.1103/PhysRevC.100.052201.  https://www.osti.gov/servlets/purl/1575903.

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@article{osti_1575903,

  title        = {Beam asymmetry Σ for the photoproduction of η and η' mesons at Eγ=8.8GeV},

  author       = {Adhikari, S. and Ali, A. and Amaryan, M. and Austregesilo, A. and Barbosa, F. and Barlow, J. and Barnes, A. and Barriga, E. and Barsotti, R. and Beattie, T. D. and Berdnikov, V. V. and Black, T. and Boeglin, W. and Boer, M. and Briscoe, W. J. and Britton, T. and Brooks, W. K. and Cannon, B. E. and Cao, N. and Chudakov, E. and Cole, S. and Cortes, O. and Crede, V. and Dalton, M. M. and Daniels, T. and Deur, A. and Dobbs, S. and Dolgolenko, A. and Dotel, R. and Dugger, M. and Dzhygadlo, R. and Egiyan, H. and Erbora, T. and Ernst, A. and Eugenio, P. and Fanelli, C. and Fegan, S. and Foda, A. M. and Foote, J. and Frye, J. and Furletov, S. and Gan, L. and Gasparian, A. and Gevorgyan, N. and Gleason, C. and Goetzen, K. and Goncalves, A. and Goryachev, V. S. and Guo, L. and Hakobyan, H. and Hamdi, A. and Huber, G. M. and Hurley, A. and Ireland, D. G. and Ito, M. M. and Jarvis, N. S. and Jones, R. T. and Kakoyan, V. and Kalicy, G. and Kamel, M. and Kourkoumelis, C. and Kuleshov, S. and Larin, I. and Lawrence, D. and Lersch, D. I. and Li, H. and Li, W. and Liu, B. and Livingston, K. and Lolos, G. J. and Lyubovitskij, V. and Mack, D. and Marukyan, H. and Mattione, P. and Matveev, V. and McCaughan, M. and McCracken, M. and McGinley, W. and Meyer, C. A. and Miskimen, R. and Mitchell, R. E. and Nerling, F. and Ng, L. and Ostrovidov, A. I. and Papandreou, Z. and Patsyuk, M. and Paudel, C. and Pauli, P. and Pedroni, R. and Pentchev, L. and Peters, K. J. and Phelps, W. and Pooser, E. and Qin, N. and Reinhold, J. and Ritchie, B. G. and Robison, L. and Romanov, D. and Romero, C. and Salgado, C. and Schertz, A. M. and Schumacher, R. A. and Schwiening, J. and Semenov, A. Yu. and Semenova, I. A. and Seth, K. K. and Shen, X. and Shepherd, M. R. and Smith, E. S. and Sober, D. I. and Somov, A. and Somov, S. and Soto, O. and Staib, M. and Stevens, J. R. and Strakovsky, I. I. and Suresh, K. and Tarasov, V. V. and Teymurazyan, A. and Thiel, A. and Vasileiadis, G. and Whitlatch, T. and Wickramaarachchi, N. and Williams, M. and Xiao, T. and Yang, Y. and Zarling, J. and Zhang, Z. and Zhao, G. and Zhou, Q. and Zhou, X. and Zihlmann, B.},

  abstractNote = {We report on the measurement of the beam asymmetry $\Sigma$ for the reactions $\vec{\gamma}p\rightarrow p\eta$ and $\vec{\gamma}p \rightarrow p\eta^{\prime}$ from the GlueX experiment, using an 8.2--8.8 GeV linearly polarized tagged photon beam incident on a liquid hydrogen target in Hall D at Jefferson Lab. These measurements are made as a function of momentum transfer $-t$, with significantly higher statistical precision than our earlier $\eta$ measurements, and are the first measurements of $\eta^{\prime}$ in this energy range. We compare the results to theoretical predictions based on $t$--channel quasi-particle exchange. We also compare the ratio of $\Sigma_{\eta}$ to $\Sigma_{\eta^{\prime}}$ to these models, as this ratio is predicted to be sensitive to the amount of $s\bar{s}$ exchange in the production. We find that photoproduction of both $\eta$ and $\eta^{\prime}$ is dominated by natural parity exchange with little dependence on $-t$.},

  doi          = {10.1103/PhysRevC.100.052201},

  journal      = {Physical Review C},

  number       = 5,

  volume       = 100,

  place        = {United States},

  year         = {2019},

  month        = {11}

}

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DOI: 10.1103/PhysRevC.100.052201

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Title: Beam asymmetry Σ for the photoproduction of η and η ' mesons at E γ = 8.8 GeV

Abstract

Citation Formats

First measurement of the $\Sigma$ beam asymmetry in $\eta^{\prime}$ photoproduction off the proton near threshold journal, July 2015

First measurement of the Σ beam asymmetry in η photoproduction on the neutron journal, July 2008

Finite-energy sum rules in eta photoproduction off a nucleon journal, February 2017

A measurement of the energy and timing resolution of the GlueX Forward Calorimeter using an electron beam journal, October 2013

Regge phenomenology in π 0 and η photoproduction journal, September 2017

New Measurement of Σ Beam Asymmetry for η Meson Photoproduction on the Proton journal, August 1998

Construction and performance of the barrel electromagnetic calorimeter for the GlueX experiment journal, July 2018

The Primakoff effect on a proton target journal, August 2005

Studies with cathode drift chambers for the GlueX experiment at Jefferson Lab journal, February 2017

The polarised target asymmetry in photoproduction of eta mesons from protons at 4 GeV journal, July 1981

Unitarity constraints on neutral pion electroproduction journal, January 2011

Measurement of the beam asymmetry in η photoproduction off the proton journal, August 2007

The GlueX central drift chamber: Design and performance journal, October 2010

Complete experiments in pseudoscalar photoproduction journal, September 1975

On the η and η ′ photoproduction beam asymmetry at high energies journal, November 2017

Pair spectrometer hodoscope for Hall D at Jefferson Lab journal, September 2015

Toward complete pion nucleon amplitudes journal, October 2015

π 0 Photoproduction in a Weak-Regge-Cut Model journal, February 1973

Design and construction of a high-energy photon polarimeter journal, September 2017

The GlueX Start Counter Detector journal, May 2019

Measurement of η photoproduction on the proton from threshold to 1500 MeV journal, August 2007

Photon beam asymmetry Σ for η and η′ photoproduction from the proton journal, August 2017

A drift detector system with anode and cathode readout in the GlueX experiment journal, January 2015

Measurement of the beam asymmetry Σ for π 0 and η photoproduction on the proton at E γ = 9 GeV journal, April 2017

Title: Beam asymmetry $Σ$ for the photoproduction of $η$ and $η^{'}$ mesons at $E_{γ} = 8.8 GeV$

First measurement of the $\Sigma$ beam asymmetry in $\eta^{\prime}$ photoproduction off the proton near threshold
journal, July 2015

First measurement of the Σ beam asymmetry in η photoproduction on the neutron
journal, July 2008

Finite-energy sum rules in eta photoproduction off a nucleon
journal, February 2017

A measurement of the energy and timing resolution of the GlueX Forward Calorimeter using an electron beam
journal, October 2013

Regge phenomenology in $π^{0}$ and $η$ photoproduction
journal, September 2017

New Measurement of $Σ$ Beam Asymmetry for $η$ Meson Photoproduction on the Proton
journal, August 1998

Construction and performance of the barrel electromagnetic calorimeter for the GlueX experiment
journal, July 2018

The Primakoff effect on a proton target
journal, August 2005

Studies with cathode drift chambers for the GlueX experiment at Jefferson Lab
journal, February 2017

The polarised target asymmetry in photoproduction of eta mesons from protons at 4 GeV
journal, July 1981

Unitarity constraints on neutral pion electroproduction
journal, January 2011

Measurement of the beam asymmetry in η photoproduction off the proton
journal, August 2007

The GlueX central drift chamber: Design and performance
journal, October 2010

Complete experiments in pseudoscalar photoproduction
journal, September 1975

On the η and η ′ photoproduction beam asymmetry at high energies
journal, November 2017

Pair spectrometer hodoscope for Hall D at Jefferson Lab
journal, September 2015

Toward complete pion nucleon amplitudes
journal, October 2015

$π^{0}$ Photoproduction in a Weak-Regge-Cut Model
journal, February 1973

Design and construction of a high-energy photon polarimeter
journal, September 2017

The GlueX Start Counter Detector
journal, May 2019

Measurement of η photoproduction on the proton from threshold to 1500 MeV
journal, August 2007

Photon beam asymmetry Σ for η and η′ photoproduction from the proton
journal, August 2017

A drift detector system with anode and cathode readout in the GlueX experiment
journal, January 2015

Measurement of the beam asymmetry $Σ$ for $π^{0}$ and $η$ photoproduction on the proton at $E_{γ} = 9$ GeV
journal, April 2017