发布求助
文献互助 智能选刊 最新文献

Acta Physica Polonica B Proceedings Supplement最新文献

筛选
英文 中文
Geometrical Methods for the Analytic Evaluation of Multiple Mellin–Barnes Integrals 分析评估多重梅林-巴恩斯积分的几何方法
Acta Physica Polonica B Proceedings Supplement Pub Date : 2024-02-06 DOI: 10.5506/aphyspolbsupp.17.2-a12
Sumit Banik, S. Friot
{"title":"Geometrical Methods for the Analytic Evaluation of Multiple Mellin–Barnes Integrals","authors":"Sumit Banik, S. Friot","doi":"10.5506/aphyspolbsupp.17.2-a12","DOIUrl":"https://doi.org/10.5506/aphyspolbsupp.17.2-a12","url":null,"abstract":"Two recently developed techniques of analytic evaluation of multifold Mellin-Barnes (MB) integrals are presented. Both approaches rest on the definition of geometrical objets conveniently associated with the MB integrands, which can then be used along with multivariate residues analysis to derive series representations of the MB integrals. The first method is based on introducing conic hulls and considering specific intersections of the latter, while the second one rests on point configurations and their regular triangulations. After a brief description of both methods, which have been automatized in the MBConicHulls.wl Mathematica package, we review some of their applications. In particular, we show how the conic hulls method was used to obtain the first analytic calculation of complicated Feynman integrals, such as the massless off-shell conformal hexagon and double-box. We then show that the triangulation method is even more efficient, as it allows one to compute these nontrivial objects and harder ones in a much faster way.","PeriodicalId":518199,"journal":{"name":"Acta Physica Polonica B Proceedings Supplement","volume":"133 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140528254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lightcone Expansion Beyond Leading Power Lightcone 扩展到领先动力之外
Acta Physica Polonica B Proceedings Supplement Pub Date : 2024-02-01 DOI: 10.5506/aphyspolbsupp.17.2-a5
Sebastian Jaskiewicz
{"title":"Lightcone Expansion Beyond Leading Power","authors":"Sebastian Jaskiewicz","doi":"10.5506/aphyspolbsupp.17.2-a5","DOIUrl":"https://doi.org/10.5506/aphyspolbsupp.17.2-a5","url":null,"abstract":"We discuss recent developments in descriptions of processes using power expansion around the lightcone within Soft-Collinear Effective Theory. First, we present an overview of the systematically improvable framework that enables factorization of high-energy scattering processes beyond leading power in the expansion in ratios of energy scales. As an illustration of the relevant concepts, we describe the recently derived factorization theorem for the off-diagonal channel of the Drell-Yan production process at threshold. This example exposes endpoint divergences appearing in convolution integrals in factorization formulas. Lastly, we discuss the solution to these complications developed in the context of ''gluon thrust'' in $e^+e^-$ collisions.","PeriodicalId":518199,"journal":{"name":"Acta Physica Polonica B Proceedings Supplement","volume":"45 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140528813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum Algorithms in Particle Physics 粒子物理学中的量子算法
Acta Physica Polonica B Proceedings Supplement Pub Date : 2024-01-29 DOI: 10.5506/aphyspolbsupp.17.2-a14
Germ'an Rodrigo
{"title":"Quantum Algorithms in Particle Physics","authors":"Germ'an Rodrigo","doi":"10.5506/aphyspolbsupp.17.2-a14","DOIUrl":"https://doi.org/10.5506/aphyspolbsupp.17.2-a14","url":null,"abstract":"We motivate the use of quantum algorithms in particle physics and provide a brief overview of the most recent applications at high-energy colliders. In particular, we discuss in detail how a quantum approach reduces the complexity of jet clustering algorithms, such as anti-kT , and show how quantum algorithms efficiently identify causal configurations of multiloop Feynman diagrams. We also present a quantum integration algorithm, called QFIAE, which is successfully applied to the evaluation of one-loop Feynman integrals in a quantum simulator or in a real quantum device.","PeriodicalId":518199,"journal":{"name":"Acta Physica Polonica B Proceedings Supplement","volume":"71 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140529590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信