Compton scattering from He4 at the TUNL HIγS facility
| Autor: | A. Banu, S.F. Mikhailov, D. M. Markoff, C. S. Whisnant, Musa Ahmed, Michael A. Kovash, C. Bartram, Hugon J Karwowski, P. Wallace, E. J. Downie, D. P. Kendellen, M. Emamian, Mark Spraker, R. S. Sosa, X. Li, G. Swift, Harald W. Grießhammer, Ying Wu, Haiyan Gao, D. Godagama, M. H. Sikora, C. R. Howell, Z. W. Zhao, R. E. Pywell, B. J. Crowe, K. K. H. Leung, Gerald Feldman, Jack Silano, H. R. Weller |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Proton 010308 nuclear & particles physics Scattering Astrophysics::High Energy Astrophysical Phenomena media_common.quotation_subject Compton scattering 01 natural sciences Asymmetry Nuclear physics Angular distribution 0103 physical sciences Experimental work 010306 general physics Nucleon Energy (signal processing) media_common |
| Zdroj: | Physical Review C. 101 |
| ISSN: | 2469-9993 2469-9985 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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