独占性 $\rho^0$ 介子光生中的横向靶自旋不对称性
高能物理 - 实验
2015-06-17 v2 核实验
摘要
COMPASS 实验通过用 160 GeV/ 的μ子散射横向极化质子，研究了介子的独占性产生过程。测量了五个单自旋和三个双自旋方位角不对称性，作为、或的函数。发现不对称性为。所有其他不对称性也被发现量值很小，且在实验不确定度范围内与零一致。最近使用基于 GPD 模型的計算与当前结果吻合良好。数据被解释为存在手征奇异性横向广义部分子分布的证据。
引用
@article{arxiv.1310.1454,
title = {Transverse target spin asymmetries in exclusive $\rho^0$ muoproduction},
author = {C. Adolph and M. G. Alekseev and V. Yu. Alexakhin and Yu. Alexandrov and G. D. Alexeev and A. Amoroso and V. Andrieux and A. Austregesilo and B. Badellek and F. Balestra and J. Barth and G. Baum and Y. Bedfer and A. Berlin and J. Bernhard and R. Bertini and K. Bicker and J. Bieling and R. Birsa and J. Bisplinghoff and M. Boer and P. Bordalo and F. Bradamante and C. Braun and A. Bravar and A. Bressan and M. Buechele and E. Burtin and L. Capozza and M. Chiosso and S. U. Chung and A. Cicuttin and M. L. Crespo and S. Dalla Torre and S. S. Dasgupta and S. Dasgupta and O. Yu. Denisov and S. V. Donskov and N. Doshita and V. Duic and W. Duennweber and M. Dziewiecki and A. Efremov and C. Elia and P. D. Eversheim and W. Eyrich and M. Faessler and A. Ferrero and A. Filin and M. Finger and M. Finger and H. Fischer and C. Franco and N. du Fresne von Hohenesche and J. M. Friedrich and V. Frolov and R. Garfagnini and F. Gautheron and O. P. Gavrichtchouk and S. Gerassimov and R. Geyer and M. Giorgi and I. Gnesi and B. Gobbo and S. Goertz and S. Grabmueller and A. Grasso and B. Grube and R. Gushterski and A. Guskov and T. Guthoerl and F. Haas and D. von Harrach and D. Hahne and F. H. Heinsius and F. Herrmann and C. Hess and F. Hinterberger and Ch. Hoeppner and N. Horikawa and N. d'Hose and S. Huber and S. Ishimoto and Yu. Ivanshin and T. Iwata and R. Jahn and V. Jary and P. Jasinski and R. Joosten and E. Kabuss and D. Kang and B. Ketzer and G. V. Khaustov and Yu. A. Khokhlov and Yu. Kisselev and F. Klein and K. Klimaszewski and J. H. Koivuniemi and V. N. Kolosov and K. Kondo and K. Koenigsmann and I. Konorov and V. F. Konstantinov and A. M. Kotzinian and O. Kouznetsov and M. Kraemer and Z. V. Kroumchtein and N. Kuchinski and F. Kunne and K. Kurek and R. P. Kurjata and A. A. Lednev and A. Lehmann and S. Levorato and J. Lichtenstadt and A. Maggiora and A. Magnon and N. Makke and G. K. Mallot and C. Marchand and A. Martin and J. Marzec and J. Matousek and H. Matsuda and T. Matsuda and G. Meshcheryakov and W. Meyer and T. Michigami and Yu. V. Mikhailov and Y. Miyachi and A. Morreale and A. Nagaytsev and T. Nagel and F. Nerling and S. Neubert and D. Neyret and V. I. Nikolaenko and J. Novy and W. -D. Nowak and A. S. Nunes and A. G. Olshevsky and M. Ostrick and R. Panknin and D. Panzieri and B. Parsamyan and S. Paul and M. Pesek and G. Piragino and S. Platchkov and J. Pochodzalla and J. Polak and V. A. Polyakov and J. Pretz and M. Quaresma and C. Quintans and S. Ramos and G. Reicherz and E. Rocco and V. Rodionov and E. Rondio and N. S. Rossiyskaya and D. I. Ryabchikov and V. D. Samoylenko and A. Sandacz and M. G. Sapozhnikov and S. Sarkar and I. A. Savin and G. Sbrizzai and P. Schiavon and C. Schill and T. Schlueter and A. Schmidt and K. Schmidt and L. Schmitt and H. Schmieden and K. Schoenning and S. Schopferer and M. Schott and O. Yu. Shevchenko and L. Silva and L. Sinha and S. Sirtl and M. Slunecka and S. Sosio and F. Sozzi and A. Srnka and L. Steiger and M. Stolarski and M. Sulc and R. Sulej and H. Suzuki and P. Sznajder and S. Takekawa and J. Ter Wolbeek and S. Tessaro and F. Tessarotto and F. Thibaud and S. Uhl and I. Uman and M. Vandenbroucke and M. Virius and J. Vondra and L. Wang and T. Weisrock and M. Wilfert and R. Windmolders and W. Wislicki and H. Wollny and K. Zaremba and M. Zavertyaev and E. Zemlyanichkina and N. Zhuravlev and M. Ziembicki},
journal= {arXiv preprint arXiv:1310.1454},
year = {2015}
}
备注
14 pages, two tables, 5 figures, bibliography updated