纵向极化氢靶上实光子的遍举轻子产生
高能物理 - 实验
2014-11-20 v1
摘要
测量了纵向极化氢靶上硬遍举轻子产生实光子的极化不对称性。这些不对称性源于深度虚康普顿散射和贝特-海特勒过程。从数据中提取了关于交换虚光子方向产生的实光子方位角分布中的两种不对称性：相对于靶极化的 和相对于束流与靶极化乘积的 。两种不对称性的结果与广义部分子分布模型的预言进行了比较。在 和 不对称性中分别观测到的 和 振幅与模型显著预言相符。出乎意料的是，在 不对称性中观测到 调制，其幅度与 调制相当。
引用
@article{arxiv.1004.0177,
title = {Exclusive Leptoproduction of Real Photons on a Longitudinally Polarised 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 B. Ball and S. Belostotski and N. Bianchi and H. P. Blok and H. Boettcher 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 M. Diefenthaler 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 C. Hadjidakis and M. Hartig and D. Hasch and G. Hill and A. Hillenbrand and M. Hoek and Y. Holler and I. Hristova and Y. Imazu and A. Ivanilov and A. Izotov 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 N. Kobayashi and V. Korotkov and V. Kozlov and P. Kravchenko and V. G. Krivokhijne and L. Lagamba and R. Lamb and L. Lapikas and I. Lehmann and P. Lenisa and L. A. Linden-Levy 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 and A. Martinez de la Ossa and H. Marukyan and C. A. Miller and Y. Miyachi and A. Movsisyan and V. Muccifora 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 N. Pickert 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 F. Sanftl 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 H. Stenzel and J. Stewart and F. Stinzing and S. Taroian and A. Terkulov and A. Trzcinski and M. Tytgat and A. Vandenbroucke and P. B. van der Nat and Y. Van Haarlem and C. Van Hulse and D. Veretennikov and V. Vikhrov and I. Vilardi and C. Vogel and S. Wang and S. Yaschenko and H. Ye and Z. Ye and S. Yen and W. Yu and D. Zeiler and B. Zihlmann and P. Zupranski},
journal= {arXiv preprint arXiv:1004.0177},
year = {2014}
}
备注
18 pages, 2 figures, 5 tables