在横向极化氢靶上测量与深度虚康普顿散射相关的双自旋不对称性
高能物理 - 实验
2011-09-16 v2
摘要
测量了来自横向极化氢靶的实光子独家电产生过程中的双自旋不对称性，分别相对于靶极化与束流螺旋性及束流电荷的乘积，以及靶极化与束流螺旋性单独的乘积。这些不对称性源于深度虚康普顿散射过程及其与贝特-海特勒过程的干涉。它们与康普顿形状因子的同一组合的实部相关，该组合的虚部决定了先前发表的横向靶单自旋不对称性。测量结果显示，双自旋不对称性在测量不确定度范围内与零相容，且与唯一可用的基于广义部分子分布的计算的预言并不矛盾。
引用
@article{arxiv.1106.2990,
title = {Measurement of double-spin asymmetries associated with deeply virtual Compton scattering on a transversely polarized hydrogen target},
author = {The HERMES Collaboration and A. Airapetian and N. Akopov and Z. Akopov and E. C. Aschenauer and W. Augustyniak and R. Avakian and A. Avetissian and E. Avetisyan and S. Belostotski and N. Bianchi and H. P. Blok and A. Borissov and J. Bowles and I. Brodski and V. Bryzgalov and J. Burns and M. Capiluppi and G. P. Capitani and E. Cisbani and G. Ciullo and M. Contalbrigo and P. F. Dalpiaz and W. Deconinck and R. De Leo and L. De Nardo and E. De Sanctis and P. Di Nezza and M. Dueren and M. Ehrenfried and G. Elbakian and F. Ellinghaus and R. Fabbri and A. Fantoni and L. Felawka and S. Frullani and D. Gabbert and G. Gapienko and V. Gapienko and F. Garibaldi and G. Gavrilov and V. Gharibyan and F. Giordano and S. Gliske and M. Golembiovskaya and M. Hartig and D. Hasch and M. Hoek and Y. Holler and I. Hristova and Y. Imazu and A. Ivanilov and H. E. Jackson and H. S. Jo and S. Joosten and R. Kaiser and G. Karyan and T. Keri and E. Kinney and A. Kisselev and V. Korotkov and V. Kozlov and P. Kravchenko and V. G. Krivokhijine and L. Lagamba and L. Lapikas and I. Lehmann and P. Lenisa and A. Lopez Ruiz and W. Lorenzon and X. -G. Lu and X. -R. Lu and B. -Q. Ma and D. Mahon and N. C. R. Makins and S. I. Manaenkov and L. Manfre and Y. Mao and B. Marianski A. Martinez de la Ossa and H. Marukyan and C. A. Miller and Y. Miyachi and A. Movsisyan and M. Murray and A. Mussgiller and E. Nappi and Y. Naryshkin and A. Nass and M. Negodaev and W. -D. Nowak and L. L. Pappalardo and R. Perez-Benito and M. Raithel and P. E. Reimer and A. R. Reolon and C. Riedl and K. Rith and G. Rosner and A. Rostomyan and J. Rubin and D. Ryckbosch and Y. Salomatin and A. Schaefer and G. Schnell and K. P. Schueler and B. Seitz and T. -A. Shibata and V. Shutov and M. Stancari and M. Statera and E. Steffens and J. J. M. Steijger and F. Stinzing and S. Taroian and A. Terkulov and R. Truty and A. Trzcinski and M. Tytgat and Y. Van Haarlem and C. Van Hulse and D. Veretennikov and V. Vikhrov and I. Vilardi and S. Wang and S. Yaschenko and Z. Ye and S. Yen and V. Zagrebelnyy and D. Zeiler and B. Zihlmann and P. Zupranski},
journal= {arXiv preprint arXiv:1106.2990},
year = {2011}
}
备注
9 pages, 4 figures, and 3 tables