GPD 区域内质子硬单举 $\pi^+$ 电生结构函数比值 $\sigma_{LT'}/\sigma_{0}$ 的多维研究
高能物理 - 实验
2023-03-01 v2
摘要
本文对共振区以上的硬单举 反应进行了结构函数比值 的多维提取。该研究基于在杰斐逊实验室使用 CLAS12 谱仪与液氢靶上 10.6 GeV 入射电子束的束流自旋不对称性测量。测量聚焦于极前向区域（ 1），在价子区域具有较宽的 运动学范围（0.17 0.55），虚度 范围从 1.5 GeV 到 6 GeV。结果及其与基于广义部分子分布的理论模型的比较，展示了对手征奇 GPDs 及直接相关的核子张量荷的敏感性。此外，将数据与高光子虚度下的 Regge 形式扩展进行了比较。研究发现，Regge 模型在低 下提供了更好的描述，而 GPD 模型在高 下更为合适。
引用
@article{arxiv.2210.14557,
title = {A multidimensional study of the structure function ratio $\sigma_{LT'}/\sigma_{0}$ from hard exclusive $\pi^+$ electro-production off protons in the GPD regime},
author = {S. Diehl and A. Kim and K. Joo and P. Achenbach and Z. Akbar and M. J. Amaryan and H. Atac and H. Avagyan and C. Ayerbe Gayoso and L. Baashen and L. Barion and M. Bashkanov and M. Battaglieri and I. Bedlinskiy and B. Benkel and F. Benmokhtar and A. Bianconi and A. S. Biselli and M. Bondi and W. A. Booth and F. Bossu and S. Boiarinov and K. -Th. Brinkmann and W. J. Briscoe and S. Bueltmann and D. Bulumulla and V. D. Burkert and D. S. Carman and A. Celentano and P. Chatagnon and V. Chesnokov and T. Chetry and G. Ciullo and G. Clash and P. L. Cole and M. Contalbrigo and G. Costantini and A. D'Angelo and N. Dashyan and R. De Vita and M. Defurne and A. Deur and C. Djalali and R. Dupre and H. Egiyan and M. Ehrhart and A. El Alaoui and L. El Fassi and L. Elouadrhiri and S. Fegan and A. Filippi and G. Gavalian and Y. Ghandilyan and G. P. Gilfoyle and D. I. Glazier and A. A. Golubenko and G. Gosta and R. W. Gothe and Y. Gotra and K. A. Grifoen and M. Guidal and K. Hafdi and H. Hakobyan and M. Hattawy and T. B. Hayward and D. Heddle and A. Hobart and M. Holtrop and Y. Ilieva and D. G. Ireland and E. L. Isupov and H. S. Jo and M. Khachatryan and A. Khanal and W. Kim and A. Kripko and V. Kubarovsky and V. Lagerquist and J. -M. Laget and L. Lanza and M. Leali and S. Lee and P. Lenisa and X. Li and K. Livingston and I . J. D. MacGregor and D. Marchand and V. Mascagna and B. McKinnon and Z. E. Meziani and S. Migliorati and T. Mineeva and M. Mirazita and V. Mokeev and Esteban Molina and R. A. Montgomery and C. Munoz Camacho and P. Nadel-Turonski and P. Naidoo and K. Neupane and S. Niccolai and M. Nicol and G. Niculescu and M. Osipenko and M. Ouillon and P. Pandey and M. Paolone and L. L. Pappalardo and R. Paremuzyan and E. Pasyuk and S. J. Paul and W. Phelps and N. Pilleux and M. Pokhrel and J. Poudel and J. W. Price and Y. Prok and Trevor Reed and J. Richards and M. Ripani and J. Ritman and P. Rossi and F. Sabatie and C. Salgado and S. Schadmand and A. Schmidt and Y. Sharabian and E. V. Shirokov and U. Shrestha and P. Simmerling and D. Sokhan and N. Sparveris and M. Spreafco and S. Stepanyan and I. I. Strakovsky and S. Strauch and J. A. Tan and N. Trotta and M. Turisini and R. Tyson and M. Ungaro and S. Vallarino and L. Venturelli and H. Voskanyan and E. Voutier and D. P. Watts and X. Wei and R. Williams and R. Wishart and M. H. Wood and N. Zachariou and J. Zhang and Z. W. Zhao and M. Zurek},
journal= {arXiv preprint arXiv:2210.14557},
year = {2023}
}
备注
arXiv admin note: text overlap with arXiv:2007.15677