Polarization effects in the quasi - elastic (p,2p) reaction with the nuclear S - shell protons at 1 GeV
O. V. Miklukho, A. Yu. Kisselev, D. A. Aksenov, G. M. Amalsky, V. A. Andreev, S. V. Evstiukhin, O. Ya. Fedorov, G. E. Gavrilov, A. A. Izotov, L. M. Kochenda, M.… 展开作者
O. V. Miklukho, A. Yu. Kisselev, D. A. Aksenov, G. M. Amalsky, V. A. Andreev, S. V. Evstiukhin, O. Ya. Fedorov, G. E. Gavrilov, A. A. Izotov, L. M. Kochenda, M. P. Levchenko, D. A. Maysuzenko, V. A. Murzin, D. V. Novinsky, A. N. Prokofiev, A. V. Shvedchikov, V. Yu. Trautman, S. I. Trush, A. A. Zhdanov
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28 pages, 7 figures, 6 tables, Sumitted th the journal "Physics of Atomic Nuclei"
The polarization of the secondary protons in the (p,2p) reaction with the S - shell protons of nuclei 4He, 6Li, 12C, 28Si, 40Ca was measured at 1 GeV unpolarized proton beam. The spin correlation parameters Cij for the 4He and 12C targets also were for the first time obtained as well. The polarization measurements were performed by means of a two - arm magnetic spectrometer, each arm of which was equipped with the multiwire proportional chamber polarimeter. This experiment was aimed to study a modification of the proton - proton scattering matrix in the nuclear medium.
Employing $p+^{58}$Ni elastic scattering for determination of $K$-shell ionization cross section of $^{58}$Ni$^{19+}$ in collisions with hydrogen gas target at 95 MeV/u
提出了一种测量储存环中低电荷态离子与氢气靶碰撞的内壳层电离截面的新方法。该方法是基于一个众所周知的质子弹性散射的微分截面的核校准。本文测量了95 MeV/uPDMATHABMN Ni $^{19+}$离子与氢原子碰撞的1047（100）靶的$K$壳层电离截面。通过与实测电离截面的比较，验证了相对论电离修正程序（RICODE-M）的预测结果。
Proton elastic form factor ratios to $Q^2$ = 3.5 GeV$^2$ by polarization transfer
质子弹性电磁形状因子的比率，$G_{Ep}/G_{Mp}$，通过测量$P_{t}$和$P_{\ell}$，横向和纵向反冲质子极化分量，分别为弹性$\vec e p \to e\vec p$ ~反应在四动量转移平方范围为0.5至3.5 GeV的$^2$。在单光子交换近似中，比率$G_{Ep}/G_{Mp}$与比率$P_t/P_{\ell}$成正比。在旋光仪中同时测量$P_{t}$和$P_{\ell}$可减少系统的不确定性。比率$G_{Ep}/G_{Mp}$的结果显示随着$Q^2$的增加而系统性地降低，这首次表明质子中电荷和磁化强度的分布存在明确的差异。这些数据已经过重新分析，系统不确定性比以前公布的结果明显小。
