Isolating prompt photons with narrow cones

Author:

Catani S.,Fontannaz M.,Guillet J. Ph.,Pilon E.

Abstract

Abstract We discuss the isolation of prompt photons in hadronic collisions by means of narrow isolation cones and the QCD computation of the corresponding cross sections. We reconsider the occurence of large perturbative terms with logarithmic dependence on the cone size and their impact on the fragmentation scale dependence. We cure the apparent perturbative violation of unitarity for small cone sizes, which had been noticed earlier in next-to-leading-order (NLO) calculations, by resumming the leading logarithmic dependence on the cone size. We discuss possible implications regarding the implementation of some hollow cone variants of the cone criterion, which simulate the experimental difficulty to impose isolation inside the region filled by the electromagnetic shower that develops in the calorimeter.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Reference59 articles.

1. CDF collaboration, T. Aaltonen et al., Measurement of the inclusive isolated prompt photon cross section in $ p\overline{p} $ Collisions at $ \sqrt{s}=1.96 $ TeV using the CDF detector, Phys. Rev. D 80 (2009) 111106 [arXiv:0910.3623] [INSPIRE].

2. CDF collaboration, F. Abe et al., Properties of photon plus two-jet events in $ \overline{p}p $ collisions at $ \sqrt{s}=1.8 $ TeV, Phys. Rev. D 57 (1998) 67 [INSPIRE].

3. CDF collaboration, F. Abe et al., Jet pseudorapidity distribution in direct photon events in $ p\overline{p} $ collisions at $ \sqrt{s}=1.8 $ TeV, Phys. Rev. D 57 (1998) 1359 [INSPIRE].

4. D0 collaboration, V. Abazov et al., Measurement of the isolated photon cross section in pp collisions at $ \sqrt{s}=1.96 $ TeV, Phys. Lett. B 639 (2006) 151 [Erratum ibid. B 658 (2008) 285-289] [hep-ex/0511054] [INSPIRE].

5. D0 collaboration, V. Abazov et al., Measurement of the differential cross-section for the production of an isolated photon with associated jet in $ p\overline{p} $ collisions at $ \sqrt{s}=1.96 $ TeV, Phys. Lett. B 666 (2008) 435 [arXiv:0804.1107] [INSPIRE].

Cited by 26 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Isolated photon production in association with a jet pair through next-to-next-to-leading order in QCD;Journal of High Energy Physics;2023-10-12

2. Les Houches 2021—physics at TeV colliders: report on the standard model precision wishlist;Journal of Physics G: Nuclear and Particle Physics;2023-03-16

3. QCD anatomy of photon isolation;Journal of High Energy Physics;2023-01-03

4. Single photon production at hadron colliders at NNLO QCD with realistic photon isolation;Journal of High Energy Physics;2022-08-05

5. Leading jets and energy loss;Journal of High Energy Physics;2021-07

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3