利用 CLAS 在 $W>2$ GeV 下进行的独占 ${\pi}^0$ 电产生
核实验
2019-08-15 v1 高能物理 - 实验
摘要
在杰斐逊实验室利用 5.75-GeV 电子束和 CLAS 探测器测量了独占中性π介子电产生过程（）。在广泛的 和 范围内，获得了微分截面 以及结构函数 、 和 随 的变化关系。将数据与 Regge 理论和手袋模型（handbag）的理论计算进行了比较。两种框架下的分析均发现，必须存在横向过程的主导优势才能解释实验结果。对于 Regge 分析，发现包含矢量介子再散射过程对于使计算出的与测量到的结构函数量级大致相符是必要的。在手袋模型框架下，有两项独立的计算，二者似乎都能用横向性广义部分子分布大致解释结构函数的量级。
引用
@article{arxiv.1405.0988,
title = {Exclusive ${\pi}^0$ electroproduction at $W>2$ GeV with CLAS},
author = {I. Bedlinskiy and V. Kubarovsky and S. Niccolai and P. Stoler and K. P. Adhikari and M. D. Anderson and S. Anefalos Pereira and H. Avakian and J. Ball and N. A. Baltzell and M. Battaglieri and V. Batourine and A. S. Biselli and S. Boiarinov and J. Bono and W. J. Briscoe and W. K. Brooks and V. D. Burkert and D. S. Carman and A. Celentano and S. Chandavar and L. Colaneri and P. L. Cole and M. Contalbrigo and O. Cortes and V. Crede and A. D'Angelo and N. Dashyan and R. De Vita and E. De Sanctis and A. Deur and C. Djalali and D. Doughty and R. Dupre and H. Egiyan and A. El Alaoui and L. El Fassi and L. Elouadrhiri and P. Eugenio and G. Fedotov and S. Fegan and J. A. Fleming and T. A. Forest and B. Garillon and M. Garçon and G. Gavalian and N. Gevorgyan and Y. Ghandilyan and G. P. Gilfoyle and K. L. Giovanetti and F. X. Girod and E. Golovatch and R. W. Gothe and K. A. Griffioen and B. Guegan and L. Guo and K. Hafidi and H. Hakobyan and N. Harrison and M. Hattawy and K. Hicks and M. Holtrop and D. G. Ireland and B. S. Ishkhanov and E. L. Isupov and D. Jenkins and H. S. Jo and K. Joo and D. Keller and M. Khandaker and A. Kim and W. Kim and A. Klein and F. J. Klein and S. Koirala and S. E. Kuhn and S. V. Kuleshov and P. Lenisa and W. I. Levine and K. Livingston and H. Y. Lu and I . J . D. MacGregor and N. Markov and M. Mayer and B. McKinnon and M. Mirazita and V. Mokeev and R. A. Montgomery and C. I. Moody and H. Moutarde and A Movsisyan and C. Munoz Camacho and P. Nadel-Turonski and I. Niculescu and M. Osipenko and A. I. Ostrovidov and L. L. Pappalardo and K. Park and S. Park and E. Pasyuk and E. Phelps and W. Phelps and J. J. Phillips and S. Pisano and O. Pogorelko and J. W. Price and Y. Prok and D. Protopopescu and S. Procureur and A. J. R. Puckett and B. A. Raue and M. Ripani and B. G. Ritchie and A. Rizzo and P. Rossi and P. Roy and F. Sabatié and C. Salgado and D. Schott and R. A. Schumacher and E. Seder and I. Senderovich and Y. G. Sharabian and A. Simonyan and G. D. Smith and D. I. Sober and D. Sokhan and S. S. Stepanyan and S. Strauch and V. Sytnik and W. Tang and Ye Tian and M. Ungaro and A. V. Vlassov and H. Voskanyan and E. Voutier and N. K. Walford and D. Watts and X. Wei and L. B. Weinstein and M. Yurov and N. Zachariou and L. Zana and J. Zhang and Z. W. Zhao and I. Zonta},
journal= {arXiv preprint arXiv:1405.0988},
year = {2019}
}
备注
28 pages, 25 figures, Submitted to Phys. Rev. C