학술논문
Compton scattering from $^4$He at the TUNL HI$\gamma$S facility
Document Type
Working Paper
Author
Li, X.; Ahmed, M. W.; Banu, A.; Bartram, C.; Crowe, B.; Downie, E. J.; Emamian, M.; Feldman, G.; Gao, H.; Godagama, D.; Grießhammer, H. W.; Howell, C. R.; Karwowski, H. J.; Kendellen, D. P.; Kovash, M. A.; Leung, K. K. H.; Markoff, D.; Mikhailov, S.; Pywell, R. E.; Sikora, M. H.; Silano, J. A.; Sosa, R. S.; Spraker, M. C.; Swift, G.; Wallace, P.; Weller, H. R.; Whisnant, C. S.; Wu, Y. K.; Zhao, Z. W.
Source
Phys. Rev. C 101, 034618 (2020)
Subject
Language
Abstract
Differential cross sections for elastic Compton scattering from $^4$He have been measured with high statistical precision at the High Intensity $\gamma$-ray Source at laboratory scattering angles of $55^\circ$, $90^\circ$, and $125^\circ$ 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 $^4$He to fully interpret the data.
Comment: 8 pages, 8 figures
Comment: 8 pages, 8 figures