高能弹性电子-质子散射中的形状因子与双光子交换
核实验
2022-03-24 v3 高能物理 - 实验
摘要
我们给出了动量转移 (Q) 高达 15.75~\gevsq 的弹性电子-质子散射截面的新精密测量。结合现有数据，这些结果改进了高 Q 下质子磁形状因子的提取，并将可进行截面纵/横分离的范围扩大了一倍。我们的结果与极化数据之间的差异，与在较低 Q 下观测到并归因于硬双光子交换（TPE）效应的差异一致，将确立差异的 Q 范围扩展到 8~(GeV/c)，置信度 95\%。我们利用该差异量化了解释高 Q 截面所需的 TPE 贡献大小。
引用
@article{arxiv.2103.01842,
title = {Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering},
author = {M. E. Christy and T. Gautam and L. Ou and B. Schmookler and Y. Wang and D. Adikaram and Z. Ahmed and H. Albataineh and S. F. Ali and B. Aljawrneh and K. Allada and S. L. Allison and S. Alsalmi and D. Androic and K. Aniol and J. Annand and J. Arrington and H. Atac and T. Averett and C. Ayerbe Gayoso and X. Bai and J. Bane and S. Barcus and K. Bartlett and V. Bellini and R. Beminiwattha and J. Bericic and H. Bhatt and D. Bhetuwal and D. Biswas and E. Brash and D. Bulumulla and C. M. Camacho and J. Campbell and A. Camsonne and M. Carmignotto and J. Castellanos and C. Chen and J-P. Chen and T. Chetry and E. Cisbani and B. Clary and E. Cohen and N. Compton and J. C. Cornejo and S. Covrig Dusa and B. Crowe and S. Danagoulian and T. Danley and W. Deconinck and M. Defurne and C. Desnault and D. Di and M. Dlamini and M. Duer and B. Duran and R. Ent and C. Fanelli and E. Fuchey and C. Gal and D. Gaskell and F. Georges and S. Gilad and O. Glamazdin and K. Gnanvo and A. V. Gramolin and V. M. Gray and C. Gu and A. Habarakada and T. Hague and G. Hamad and D. Hamilton and K. Hamilton and O. Hansen and F. Hauenstein and A. V. Hernandez and W. Henry and D. W. Higinbotham and T. Holmstrom and T. Horn and Y. Huang and G. M. Huber and C. Hyde and H. Ibrahim and N. Israel and C-M. Jen and K. Jin and M. Jones and A. Kabir and B. Karki and C. Keppel and V. Khachatryan and P. M. King and S. Li and W. Li and H. Liu and J. Liu and A. H. Liyanage and D. Mack and J. Magee and S. Malace and J. Mammei and P. Markowitz and S. Mayilyan and E. McClellan and F. Meddi and D. Meekins and K. Mesick and R. Michaels and A. Mkrtchyan and B. Moffit and R. Montgomery and L. S. Myers and P. Nadel-Turonski and S. J. Nazeer and V. Nelyubin and D. Nguyen and N. Nuruzzaman and M. Nycz and R. F. Obrecht and K. Ohanyan and C. Palatchi and B. Pandey and K. Park and S. Park and C. Peng and F. D. Persio and R. Pomatsalyuk and E. Pooser and A. J. R. Puckett and V. Punjabi and B. Quinn and S. Rahman and M. N. H. Rashad and S. Riordan and J. Roche and I. Sapkota and A. Sarty and B. Sawatzky and N. H. Saylor and M. H. Shabestari and A. Shahinyan and S. Sirca and G. R. Smith and S. Sooriyaarachchilage and N. Sparveris and R. Spies and A. Stefanko and T. Su and A. Subedi and V. Sulkosky and A. Sun and Y. Tan and L. Thorne and N. Ton and F. Tortorici and R. Trotta and R. Uniyal and G. M. Urciuoli and E. Voutier and B. Waidyawansa and B. Wojtsekhowski and S. Wood and X. Yan and L. Ye and Z. H. Ye and C. Yero and J. Zhang and Y. X. Zhao and P. Zhu},
journal= {arXiv preprint arXiv:2103.01842},
year = {2022}
}
备注
7 pages, 2 figures