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

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:
ORCiD logo [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [1] ;  [3]
  1. Indiana Univ., Bloomington, IN (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Univ. Nacional Autonoma de Mexico, Ciudad de Mexico (Mexico)
  3. Indiana Univ., Bloomington, IN (United States)
  4. Univ. Bonn, Bonn (Germany)
  5. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Report Number(s):
JLAB-THY-17-2450; DOE/OR/23177-4125; arXiv:1704.07684
Journal ID: ISSN 0370-2693; PII: S0370269317307931; TRN: US1800189
Grant/Contract Number:
AC05-06OR23177; FG0287ER40365; PHY-1415459; PHY-1205019; IA101717; 251817
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 774; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1395901
Alternate Identifier(s):
OSTI ID: 1411167

Mathieu, V., Nys, J., Fernandez-Ramirez, C., Jackura, A., Mikhasenko, M., Pilloni, A., Szczepaniak, A. P., and Fox, G.. On the η and η ' photoproduction beam asymmetry at high energies. United States: N. p., Web. doi:10.1016/j.physletb.2017.09.081.
Mathieu, V., Nys, J., Fernandez-Ramirez, C., Jackura, A., Mikhasenko, M., Pilloni, A., Szczepaniak, A. P., & Fox, G.. On the η and η ' photoproduction beam asymmetry at high energies. United States. doi:10.1016/j.physletb.2017.09.081.
Mathieu, V., Nys, J., Fernandez-Ramirez, C., Jackura, A., Mikhasenko, M., Pilloni, A., Szczepaniak, A. P., and Fox, G.. 2017. "On the η and η ' photoproduction beam asymmetry at high energies". United States. doi:10.1016/j.physletb.2017.09.081.
@article{osti_1395901,
title = {On the η and η ' photoproduction beam asymmetry at high energies},
author = {Mathieu, V. and Nys, J. and Fernandez-Ramirez, 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. Section B},
number = C,
volume = 774,
place = {United States},
year = {2017},
month = {9}
}