On the η and η′ photoproduction beam asymmetry at high energies

Mathieu, V.; Nys, J.; Fernández-Ramírez, C.; Jackura, A.; Mikhasenko, M.; Pilloni, A.; Szczepaniak, A. P.; Fox, G.

doi:10.1016/j.physletb.2017.09.081

Title: On the η and η′ photoproduction beam asymmetry at high energies

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Abstract

Here, we show that, in the Regge limit, beam asymmetries in $$\eta$$ and $$\eta'$$ photoproduction are sensitive to hidden strangeness components. Under reasonable assumptions about the couplings we estimate the contribution of the $$\phi$$ Regge pole, which is expected to be the dominant hidden strangeness contribution. The ratio of the asymmetries in $$\eta'$$ and $$\eta$$ production is estimated to be close to unity in the forward region $$0 < -t/\text{GeV}^2 \leq 1$$ at the photon energy $$E_\text{lab} = 9$$~GeV, relevant for the upcoming measurements at Jefferson Lab.

Authors:

; Nys, J.; Fernández-Ramírez, C.; Jackura, A.; Mikhasenko, M.; Pilloni, A.; Szczepaniak, A. P.; Fox, G.

Publication Date:: Wed Nov 01 00:00:00 EDT 2017

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:: 1395901

Alternate Identifier(s):: OSTI ID: 1411167

Report Number(s):: JLAB-THY-17-2450; DOE/OR/23177-4125; arXiv:1704.07684
Journal ID: ISSN 0370-2693; S0370269317307931; PII: S0370269317307931

Grant/Contract Number:: AC05-06OR23177; FG0287ER40365; PHY-1415459; PHY-1205019; IA101717; 251817

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Name: Physics Letters B Journal Volume: 774 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Mathieu, V., Nys, J., Fernández-Ramírez, C., Jackura, A., Mikhasenko, M., Pilloni, A., Szczepaniak, A. P., and Fox, G. On the η and η′ photoproduction beam asymmetry at high energies.  Netherlands: N. p., 2017. 
Web.  doi:10.1016/j.physletb.2017.09.081.

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                    Mathieu, V., Nys, J., Fernández-Ramírez, C., Jackura, A., Mikhasenko, M., Pilloni, A., Szczepaniak, A. P., & Fox, G. On the η and η′ photoproduction beam asymmetry at high energies.  Netherlands.  https://doi.org/10.1016/j.physletb.2017.09.081

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                    Mathieu, V., Nys, J., Fernández-Ramírez, C., Jackura, A., Mikhasenko, M., Pilloni, A., Szczepaniak, A. P., and Fox, G. Wed .  
"On the η and η′ photoproduction beam asymmetry at high energies".  Netherlands.  https://doi.org/10.1016/j.physletb.2017.09.081.

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@article{osti_1395901,

  title        = {On the η and η′ photoproduction beam asymmetry at high energies},

  author       = {Mathieu, V. and Nys, J. and Fernández-Ramírez, C. and Jackura, A. and Mikhasenko, M. and Pilloni, A. and Szczepaniak, A. P. and Fox, G.},

  abstractNote = {Here, we show that, in the Regge limit, beam asymmetries in $\eta$ and $\eta'$ photoproduction are sensitive to hidden strangeness components. Under reasonable assumptions about the couplings we estimate the contribution of the $\phi$ Regge pole, which is expected to be the dominant hidden strangeness contribution. The ratio of the asymmetries in $\eta'$ and $\eta$ production is estimated to be close to unity in the forward region $0 < -t/\text{GeV}^2 \leq 1$ at the photon energy $E_\text{lab} = 9$~GeV, relevant for the upcoming measurements at Jefferson Lab.},

  doi          = {10.1016/j.physletb.2017.09.081},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 774,

  place        = {Netherlands},

  year         = {Wed Nov 01 00:00:00 EDT 2017},

  month        = {Wed Nov 01 00:00:00 EDT 2017}

}

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