Compton Scattering from ⁴He at 61 MeV

Authors

M. H. Sikora, Duke University
M. W. Ahmed, Duke University
A. Banu, James Madison University
C. Bartram, Triangle Universities Nuclear Laboratory
B. Crowe, Triangle Universities Nuclear Laboratory
E. J. Downie, The George Washington University
G. Feldman, The George Washington University
H. Gao, Duke University
H. W. Grießhammer, The George Washington University
H. Hao, Triangle Universities Nuclear Laboratory
C. R. Howell, Triangle Universities Nuclear Laboratory
H. J. Karwowski, Triangle Universities Nuclear Laboratory
D. P. Kendellen, Duke University
Michael A. Kovash, University of KentuckyFollow
X. Li, Duke University
D. M. Markoff, Triangle Universities Nuclear Laboratory
S. Mikhailov, Triangle Universities Nuclear Laboratory
V. Popov, Triangle Universities Nuclear Laboratory
R. E. Pywell, University of Saskatchewan, Canada
J. A. Silano, Triangle Universities Nuclear Laboratory
M. C. Spraker, University of North Georgia
P. Wallace, Triangle Universities Nuclear Laboratory
H. R. Weller, Duke University
C. S. Whisnant, James Madison University
Y. K. Wu, Duke University
W. Xiong, Duke University
X. Yan, Duke University
Z. W. Zhao, Duke University

Abstract

The Compton scattering cross section from ⁴He has been measured with high statistical accuracy over a scattering angle range of 40^∘−159^∘ using a quasimonoenergetic 61-MeV photon beam at the High Intensity Gamma-Ray Source. The data are interpreted using a phenomenological model sensitive to the dipole isoscalar electromagnetic polarizabilities (α_s and β_s) of the nucleon. These data can be fit with the model using values of α_s and β_s that are consistent with the currently accepted values. These data will serve as benchmarks of future calculations from effective field theories and lattice quantum chromodynamics.

Document Type

Article

Publication Date

11-27-2017

Notes/Citation Information

Published in Physical Review C, v. 96, issue 5, 055209, p. 1-7.

©2017 American Physical Society

The copyright holder has granted permission for posting the article here.

Digital Object Identifier (DOI)

https://doi.org/10.1103/PhysRevC.96.055209

Funding Information

The work described in this article is funded in part by the US Department of Energy under Contracts No. DE-SC0015393, No. DE-SC000536, No. DE-FG02-97ER41033, No. DE-FG02-97ER41041, No. DE-FG02-97ER41, No. DE-FG02-97ER4104, No. DE-FG02-97ER41033, No. DE-SC0016581, No. DE-FG02-03ER41231, and No. DE-SC0016512, National Science Foundation Grants No. NSF-PHY-1714833, No. NSF-PHY-1309130, and No. NSF-1301843, and the Dean’s Research Chair program of the Columbian College of Arts and Sciences at The George Washington University. We acknowledge the financial support of the Natural Sciences and Engineering Research Council of Canada.

Repository Citation

Sikora, M. H.; Ahmed, M. W.; Banu, A.; Bartram, C.; Crowe, B.; Downie, E. J.; Feldman, G.; Gao, H.; Grießhammer, H. W.; Hao, H.; Howell, C. R.; Karwowski, H. J.; Kendellen, D. P.; Kovash, Michael A.; Li, X.; Markoff, D. M.; Mikhailov, S.; Popov, V.; Pywell, R. E.; Silano, J. A.; Spraker, M. C.; Wallace, P.; Weller, H. R.; Whisnant, C. S.; Wu, Y. K.; Xiong, W.; Yan, X.; and Zhao, Z. W., "Compton Scattering from ⁴He at 61 MeV" (2017). Physics and Astronomy Faculty Publications. 530.
https://uknowledge.uky.edu/physastron_facpub/530