Measurement of the differential cross section and of the tensor and vector analyzing powers for the fragmentation of 4.5-GeV/c deuterons on beryllium in the reaction involving proton emission at an angle of 80 mrad

Azhgirey, L.S.; Arkhipov, V.V.; Afanasiev, S.V.; Bondarev, V.K.; Zhmyrov, V.N.; Zolin, L.S.; Ivanov, V.I.; Isupov, A.Y.; Kartamyshev, A.A.; Kashirin, V.A.; Kolesnikov, V.I.; Kuznetsov, V.A.; Ladygin, V.P.; Ladygina, N.B.; Litvinenko, A.G.; Reznikov, S.G.; Rukoyatkin, P.A.; Semenov, A.Y.; Semenova, I.A.; Stoletov, G.D.; Filipov, G.; Khrenov, A.N.; Yudin, N.P.

Авторы: Azhgirey L.S., Arkhipov V.V., Afanasiev S.V., Bondarev V.K., Zhmyrov V.N., Zolin L.S., Ivanov V.I., Isupov A.Y., Kartamyshev A.A., Kashirin V.A., Kolesnikov V.I., Kuznetsov V.A., Ladygin V.P., Ladygina N.B., Litvinenko A.G., Reznikov S.G., Rukoyatkin P.A., Semenov A.Y., Semenova I.A., Stoletov G.D., Filipov G., Khrenov A.N., Yudin N.P.
Журнал: Physics of Atomic Nuclei
Том: 66
Номер: 4
Год издания: 2003
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 690
Последняя страница: 699
DOI: 10.1134/1.1575568
Аннотация: The invariant differential cross section, the tensor analyzing power A(yy), and the vector analyzing power A(y) for the reaction Be-9(d.p)X are measured at an initial deuteron momentum of 4.5 GeV/c Mid a proton detection angle of about 80 mrad. The data obtained for the differential cross section are consistent with the results of measurements at 3.5 and 5.78 GeV/c and a proton emission angle of 2.5degrees. The values found for the tensor analyzing power A(yy) are compared with similar data obtained previously for the deuteron-fragmentation process Occurring on a carbon target at various values of the initial deuteron momentum and leading to proton emission at zero angle. The data oil the differential cross section for the reaction Be-9(d. p)X can be satisfactorily described within the relativistic impulse approximation by using standard deuteron wave functions: however, the approach based on this conceptual framework proves to be inadequate in dealing with data on the tensor analyzing power. These results indicate that it is necessary either to change the method for describing the relativistic deuteron or to take into account additional mechanisms. (C) 2003 MAIK" Nauka/Interperiodica".
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Measurement of the differential cross section and of the tensor and vector analyzing powers for the fragmentation of 4.5-GeV/c deuterons on beryllium in the reaction involving proton emission at an angle of 80 mradстатья