机器学习辅助测量HERA深度非弹性散射中轻子-喷注方位角不对称性
高能物理 - 实验
2024-12-24 v2 高能物理 - 唯象学
核实验
摘要
在深度非弹性正电子-质子散射中，利用H1探测器在HERA收集的数据测量了轻子-喷注方位角不对称性。当轻子-喷注系统的平均横向动量|P̅⊥|远大于系统的总横向动量|q̅⊥|时，平行和反平行构型P̅⊥和q̅⊥之间的不对称性预期由初态和末态软胶子辐射产生，并可用微扰理论预测。因此，量化不对称性的角度特性提供了对强力的额外检验。研究这种不对称性对于未来通过横向动量依赖部分子分布函数测量质子组分产生的内在不对称性很重要，因为这种不对称性构成了主要背景。使用一种无需分箱的机器学习反卷积方法测量了方位角不对称性的矩。
引用
@article{arxiv.2412.14092,
title = {Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA},
author = {The H1 collaboration and V. Andreev and M. Arratia and A. Baghdasaryan and A. Baty and K. Begzsuren and A. Bolz and V. Boudry and G. Brandt and D. Britzger and A. Buniatyan and L. Bystritskaya and A. J. Campbell and K. B. Cantun Avila and K. Cerny and V. Chekelian and Z. Chen and J. G. Contreras and J. Cvach and J. B. Dainton and K. Daum and A. Deshpande and C. Diaconu and A. Drees and G. Eckerlin and S. Egli and E. Elsen and L. Favart and A. Fedotov and J. Feltesse and M. Fleischer and A. Fomenko and C. Gal and J. Gayler and L. Goerlich and N. Gogitidze and M. Gouzevitch and C. Grab and T. Greenshaw and G. Grindhammer and D. Haidt and R. C. W. Henderson and J. Hessler and J. Hladký and D. Hoffmann and R. Horisberger and T. Hreus and F. Huber and P. M. Jacobs and M. Jacquet and T. Janssen and A. W. Jung and J. Katzy and C. Kiesling and M. Klein and C. Kleinwort and H. T. Klest and R. Kogler and P. Kostka and J. Kretzschmar and D. Krücker and K. Krüger and M. P. J. Landon and W. Lange and P. Laycock and S. H. Lee and S. Levonian and W. Li and J. Lin and K. Lipka and B. List and J. List and B. Lobodzinski and O. R. Long and E. Malinovski and H. -U. Martyn and S. J. Maxfield and A. Mehta and A. B. Meyer and J. Meyer and S. Mikocki and V. M. Mikuni and M. M. Mondal and K. Müller and B. Nachman and Th. Naumann and P. R. Newman and C. Niebuhr and G. Nowak and J. E. Olsson and D. Ozerov and S. Park and C. Pascaud and G. D. Patel and E. Perez and A. Petrukhin and I. Picuric and D. Pitzl and V. Radescu and N. Raicevic and T. Ravdandorj and D. Reichelt and P. Reimer and E. Rizvi and P. Robmann and R. Roosen and A. Rostovtsev and M. Rotaru and D. P. C. Sankey and M. Sauter and E. Sauvan and S. Schmitt and B. A. Schmookler and G. Schnell and L. Schoeffel and A. Schöning and F. Sefkow and S. Shushkevich and Y. Soloviev and P. Sopicki and D. South and A. Specka and M. Steder and B. Stella and U. Straumann and C. Sun and T. Sykora and P. D. Thompson and F. Torales Acosta and D. Traynor and B. Tseepeldorj and Z. Tu and G. Tustin and A. Valkárová and C. Vallée and P. Van Mechelen and D. Wegener and E. Wünsch and J. Žáček and J. Zhang and Z. Zhang and R. Žlebčík and H. Zohrabyan and F. Zomer},
journal= {arXiv preprint arXiv:2412.14092},
year = {2024}
}
备注
15 pages, 4 figures, 2 tables, updated affiliations and acknowledgements