Determination of the scalar polarizabilities of the proton using beam asymmetry\Sigma_ {3} in Compton scattering

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dc.contributor.author Sokhoyan, V.
dc.contributor.author Downie, E. J.
dc.contributor.author Mornacchi, E.
dc.contributor.author McGovern, J. A.
dc.contributor.author Krupina, N.
dc.contributor.author Afzal, F.
dc.contributor.author Ahrens, J.
dc.contributor.author Akondi, C. S.
dc.contributor.author Annand, J. R. M.
dc.contributor.author Arends, H. J.
dc.contributor.author Beck, R.
dc.date.accessioned 2018-02-08T09:49:13Z
dc.date.available 2018-02-08T09:49:13Z
dc.date.issued 2017
dc.identifier.citation European Physical Journal A, (2017) 53: 14 en_US
dc.identifier.issn 1434-6001
dc.identifier.uri https://arxiv.org/pdf/1611.03769.pdf
dc.identifier.uri http://repository.seku.ac.ke/handle/123456789/3839
dc.description DOI: 10.1140/epja/i2017-12203-0 en_US
dc.description.abstract The scalar dipole polarizabilities, αE1 and βM1, are fundamental properties related to the internal dynamics of the nucleon. The currently accepted values of the proton polarizabilities were determined by fitting to unpolarized proton Compton scattering cross section data. The measurement of the beam asymmetry Σ3 in a certain kinematical range provides an alternative approach to the extraction of the scalar polarizabilities. At the Mainz Microtron (MAMI) the beam asymmetry was measured for Compton scattering below pion photoproduction threshold for the first time. The results are compared with model calculations and the influence of the experimental data on the extraction of the scalar polarizabilities is determined. en_US
dc.publisher Springer Verlag en_US
dc.title Determination of the scalar polarizabilities of the proton using beam asymmetry\Sigma_ {3} in Compton scattering en_US


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