Compton scattering from He 4 at the TUNL HIγ S facility

  • X. Li
  • , M. W. Ahmed
  • , A. Banu
  • , C. Bartram
  • , B. Crowe
  • , E. J. Downie
  • , M. Emamian
  • , G. Feldman
  • , H. Gao
  • , D. Godagama
  • , H. W. Grießhammer
  • , C. R. Howell
  • , H. J. Karwowski
  • , D. P. Kendellen
  • , M. A. Kovash
  • , K. K.H. Leung
  • , D. Markoff
  • , S. Mikhailov
  • , R. E. Pywell
  • , M. H. Sikora
  • J. A. Silano, R. S. Sosa, M. C. Spraker, G. Swift, P. Wallace, H. R. Weller, C. S. Whisnant, Y. K. Wu, Z. W. Zhao

Research output: Contribution to journalArticlepeer-review

Abstract

Differential cross sections for elastic Compton scattering from He4 have been measured with high statistical precision at the High Intensity γ-ray Source at laboratory scattering angles of 55°, 90°, and 125° using a quasi-monoenergetic photon beam with a weighted mean energy value of 81.3 MeV. The results are compared to previous measurements and similar fore-aft asymmetry in the angular distribution of the differential cross sections is observed. This experimental work is expected to strongly motivate the development of effective-field-theory calculations of Compton scattering from He4 to fully interpret the data.

Original languageEnglish
Article number034618
JournalPhysical Review C
Volume101
Issue number3
DOIs
StatePublished - Mar 2020

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