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Proton Compton Scattering from Linearly Polarized Gamma Rays.

Publication ,  Journal Article
Li, X; Ahmed, MW; Banu, A; Bartram, C; Crowe, B; Downie, EJ; Emamian, M; Feldman, G; Gao, H; Godagama, D; Grießhammer, HW; Howell, CR; Wu, YK ...
Published in: Physical review letters
April 2022

Differential cross sections for Compton scattering from the proton have been measured at scattering angles of 55°, 90°, and 125° in the laboratory frame using quasimonoenergetic linearly (circularly) polarized photon beams with a weighted mean energy value of 83.4 MeV (81.3 MeV). These measurements were performed at the High Intensity Gamma-Ray Source facility at the Triangle Universities Nuclear Laboratory. The results are compared to previous measurements and are interpreted in the chiral effective field theory framework to extract the electromagnetic dipole polarizabilities of the proton, which gives α_{E1}^{p}=13.8±1.2_{stat}±0.1_{BSR}±0.3_{theo},β_{M1}^{p}=0.2∓1.2_{stat}±0.1_{BSR}∓0.3_{theo} in units of 10^{-4}  fm^{3}.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

April 2022

Volume

128

Issue

13

Start / End Page

132502

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Li, X., Ahmed, M. W., Banu, A., Bartram, C., Crowe, B., Downie, E. J., … Zhao, Z. W. (2022). Proton Compton Scattering from Linearly Polarized Gamma Rays. Physical Review Letters, 128(13), 132502. https://doi.org/10.1103/physrevlett.128.132502
Li, X., M. W. Ahmed, A. Banu, C. Bartram, B. Crowe, E. J. Downie, M. Emamian, et al. “Proton Compton Scattering from Linearly Polarized Gamma Rays.Physical Review Letters 128, no. 13 (April 2022): 132502. https://doi.org/10.1103/physrevlett.128.132502.
Li X, Ahmed MW, Banu A, Bartram C, Crowe B, Downie EJ, et al. Proton Compton Scattering from Linearly Polarized Gamma Rays. Physical review letters. 2022 Apr;128(13):132502.
Li, X., et al. “Proton Compton Scattering from Linearly Polarized Gamma Rays.Physical Review Letters, vol. 128, no. 13, Apr. 2022, p. 132502. Epmc, doi:10.1103/physrevlett.128.132502.
Li X, Ahmed MW, Banu A, Bartram C, Crowe B, Downie EJ, Emamian M, Feldman G, Gao H, Godagama D, Grießhammer HW, Howell CR, Karwowski HJ, Kendellen DP, Kovash MA, Leung KKH, Markoff DM, McGovern JA, Mikhailov S, Pywell RE, Sikora MH, Silano JA, Sosa RS, Spraker MC, Swift G, Wallace P, Weller HR, Whisnant CS, Wu YK, Zhao ZW. Proton Compton Scattering from Linearly Polarized Gamma Rays. Physical review letters. 2022 Apr;128(13):132502.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

April 2022

Volume

128

Issue

13

Start / End Page

132502

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences