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arXiv 0712.2677hep-ex
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在50和40 Gev/C下对p+p（pol）->π^0 + X和π^-+p（pol）->π^0 + X反应的包含$π^0$分析能力的比较研究

The Comparative Study of the Inclusive $π^0$ Analyzing Power in Reactions p+p(pol)->π^0 + X and π^-+p(pol)->π^0 + X at 50 and 40 Gev/C Respectively

V. V. Mochalov, S. B. Nurushev, A. N. Vasiliev, N. A. Bazhanov, N. S. Borisov, Y. M. Goncharenko, A. M. Davidenko, A. A. Derevschikov, V. G. Kolomiets, V. A. Ko… 展开作者

V. V. Mochalov, S. B. Nurushev, A. N. Vasiliev, N. A. Bazhanov, N. S. Borisov, Y. M. Goncharenko, A. M. Davidenko, A. A. Derevschikov, V. G. Kolomiets, V. A. Kormilitsin, V. I. Kravtsov, A. B. Lazarev, Yu. A. Matulenko, Yu. M. Melnick, A. P. Meschanin, N. G. Minaev, D. A. Morozov, A. B. Neganov, L. V. Nogach, Yu. A. Plis, A. F. Prudkoglyad, A. V. Ryazantsev, P. A. Semenov, O. N. Shchevelev, L. F. Soloviev, Yu. A. Usov, A. E. Yakutin

备注：
Talk given at XII Workshop on High Energy Spin Physics (Dubna-SPIN-07)
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摘要：

反应p+p（pol）->π^0 + X和反应π^-+p（pol）->π^0 + X中的单自旋不对称性$A_N$在50和40 GeV/c时，在中心区域的横动量函数中表现出截然不同的方式。同时，这些反应的极化质子碎裂区的$A_N$实际上是重合的。我们在反应p+p（pol）->π^0 + X中极化质子碎裂区的50 GeV/c解析本领的新数据以更好的统计性证实了这一结论，并与我们以前在70 GeV/c对同一反应的数据相吻合。

英文摘要：

Single-spin asymmetries $A_N$ in reactions p+p(pol)->π^0 + X and π^-+p(pol)->π^0 + X at 50 and 40 GeV/c respectively behave in drastically different ways in function of transverse momentum in the central region. At the same time $A_N$ in the polarized proton fragmentation region of these reactions are practically coinciding. Our new data on the analyzing power at 50 GeV/c in the polarized proton fragmentation region in reaction p+p(pol)->π^0 + X confirm this conclusion with better statistics and coincide with our previous data at 70 GeV/c for the same reaction.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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