Polarization-transfer measurement to a large-virtuality bound proton in the deuteron

Autor: I. Yaron, D. Izraeli, P. Achenbach, H. Arenhövel, J. Beričič, R. Böhm, D. Bosnar, E.O. Cohen, L. Debenjak, M.O. Distler, A. Esser, I. Friščić, R. Gilman, I. Korover, J. Lichtenstadt, H. Merkel, D.G. Middleton, M. Mihovilovič, U. Müller, E. Piasetzky, J. Pochodzalla, G. Ron, B.S. Schlimme, M. Schoth, F. Schulz, C. Sfienti, S. Širca, S. Strauch, M. Thiel, A. Tyukin, A. Weber
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Physics Letters B, Vol 769, Iss C, Pp 21-24 (2017)
Druh dokumentu: article
ISSN: 0370-2693
1873-2445
DOI: 10.1016/j.physletb.2017.01.034
Popis: We report the measurement of the ratio of polarization-transfer components, Px/Pz, in the H2(e→,e′p→)n reaction at low and high missing momenta, in search of differences between free and bound protons. The observed deviation of Px/Pz from that of a free proton, which is similar to that observed in 4He, indicates that the effect in nuclei is a function of the virtuality of the knock-out proton and the missing momentum direction, but not the average nuclear density. There is a general agreement between the data and calculations, which assume free proton form factors, however, the measurements are consistently about 10% higher.
Databáze: Directory of Open Access Journals
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