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Tensor Ayy and Vector Ay Analyzing Powers of the (d,p) and (d,d) Reactions at 5 Gev/c and 178 MR | | V.P.Ladygin
; L.S.Azhgirey
; S.V.Afanasiev
; V.N.Zhmyrov
; L.S.Zolin
; V.I.Ivanov
; A.Yu.Isupov
; N.B.Ladygina
; A.G.Litvinenko
; V.F.Peresedov
; A.N.Khrenov
; N.P.Yudin
; | | Date: |
10 Dec 2004 | | Subject: | nucl-ex | | Abstract: | New data on the tensor analyzing power Ayy of the ^9Be(d,p)X reaction at an initial deuteron momentum of 5 GeV/c and secondary particles (protons and deuterons) detection angle of 178 mr have been obtained at the JINR Synchrophasotron. The proton data obtained are analyzed within the framework of an approach based on the light-front dynamics using Karmanov’s relativistic deuteron wave function. Contrary to the calculations with standard non-relativistic deuteron wave functions, we have managed to explain the new data within the framework of our approach without invoking degrees of freedom additional to nucleon ones. The ^9Be(d,d)X data are obtained in the vicinity of the excitation of baryonic resonances with masses up to 1.8 GeV/c^2. The Ayy data are in a good agreement with the previous data obtained at 4.5 and 5.5 GeV/c when they are plotted versus $t$. The results of the experiment are compared with the predictions of the plane wave impulse approximation and omega-meson exchange models. | | Source: | arXiv, nucl-ex/0412020 | | Services: | Forum | Review | PDF | Favorites | |
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