电弱探针与ATLAS

A. Milov
{"title":"电弱探针与ATLAS","authors":"A. Milov","doi":"10.22323/1.320.0016","DOIUrl":null,"url":null,"abstract":"Measuring electroweak bosons in relativistic heavy ion collisions at high energy provide an opportunity to understand temporal evolution of the quark-gluon plasma created in such collisions by constraining the initial state of the interaction. Due to lack of colour charges the bosons and or particles produced in their leptonic decays are unaffected by the quark-gluon plasma and therefore preserve the information about the very early stage of the collision when they were born. This singles electroweak bosons as a unique and very interesting class of observables in heavy ion collisions. \n \nThe ATLAS experiment at LHC measures production of electroweak bosons in $pp$, $p$+Pb and Pb+Pb collisions systems. A review of the existing results is given in this proceeding that includes studies made with isolated photons to constraint kinematic properties and flavour composition of associated jets, measurements of $W$ and $Z$ bosons used to estimate nuclear modification of parton distribution function and the production rates of the bosons used to verify geometric models implied to estimate event centrality. A novel analysis on measuring two particle correlations in \\pp collisions where the $Z$ boson is registered is also discussed in the proceeding. This is the first attempt to break into the initial geometry of the \\pp collisions by constraining the impact parameter with a hard scattering process. It shows that the strength of the two particle correlations in such collision is $1.08\\pm0.06$ above the inclusive. To make the measurement ATLAS solves the technical problem of measuring the underlying event in high pileup condition.","PeriodicalId":104537,"journal":{"name":"Proceedings of 12th International Workshop on High-pT Physics in the RHIC/LHC Era — PoS(High-pT2017)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electroweak probes with ATLAS\",\"authors\":\"A. Milov\",\"doi\":\"10.22323/1.320.0016\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Measuring electroweak bosons in relativistic heavy ion collisions at high energy provide an opportunity to understand temporal evolution of the quark-gluon plasma created in such collisions by constraining the initial state of the interaction. Due to lack of colour charges the bosons and or particles produced in their leptonic decays are unaffected by the quark-gluon plasma and therefore preserve the information about the very early stage of the collision when they were born. This singles electroweak bosons as a unique and very interesting class of observables in heavy ion collisions. \\n \\nThe ATLAS experiment at LHC measures production of electroweak bosons in $pp$, $p$+Pb and Pb+Pb collisions systems. A review of the existing results is given in this proceeding that includes studies made with isolated photons to constraint kinematic properties and flavour composition of associated jets, measurements of $W$ and $Z$ bosons used to estimate nuclear modification of parton distribution function and the production rates of the bosons used to verify geometric models implied to estimate event centrality. A novel analysis on measuring two particle correlations in \\\\pp collisions where the $Z$ boson is registered is also discussed in the proceeding. This is the first attempt to break into the initial geometry of the \\\\pp collisions by constraining the impact parameter with a hard scattering process. It shows that the strength of the two particle correlations in such collision is $1.08\\\\pm0.06$ above the inclusive. To make the measurement ATLAS solves the technical problem of measuring the underlying event in high pileup condition.\",\"PeriodicalId\":104537,\"journal\":{\"name\":\"Proceedings of 12th International Workshop on High-pT Physics in the RHIC/LHC Era — PoS(High-pT2017)\",\"volume\":\"51 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-02-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of 12th International Workshop on High-pT Physics in the RHIC/LHC Era — PoS(High-pT2017)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.22323/1.320.0016\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 12th International Workshop on High-pT Physics in the RHIC/LHC Era — PoS(High-pT2017)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22323/1.320.0016","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

测量高能相对论重离子碰撞中的电弱玻色子提供了一个机会,通过限制相互作用的初始状态来理解在这种碰撞中产生的夸克-胶子等离子体的时间演化。由于缺乏彩色电荷,在轻子衰变中产生的玻色子和粒子不受夸克-胶子等离子体的影响,因此保留了它们诞生时碰撞早期阶段的信息。在重离子碰撞中,电弱玻色子是一种独特而有趣的可观测物。大型强子对撞机上的ATLAS实验测量了pp、p +Pb和Pb+Pb碰撞系统中电弱玻色子的产生。本文回顾了现有的研究成果,包括用孤立光子约束相关射流的运动特性和味组成的研究,用于估计部分子分布函数的核修饰的W和Z玻色子的测量,以及用于验证用于估计事件中心性的几何模型的玻色子的产生率。本文还讨论了在\pp碰撞中测量两个粒子相关性的一种新的分析方法,其中$Z$玻色子被记录。这是第一次尝试通过硬散射过程约束撞击参数来突破\pp碰撞的初始几何。结果表明,在这种碰撞中,两个粒子的相关强度比包容强度高$1.08\pm0.06$。ATLAS的研制解决了高堆积条件下基底事件测量的技术难题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electroweak probes with ATLAS
Measuring electroweak bosons in relativistic heavy ion collisions at high energy provide an opportunity to understand temporal evolution of the quark-gluon plasma created in such collisions by constraining the initial state of the interaction. Due to lack of colour charges the bosons and or particles produced in their leptonic decays are unaffected by the quark-gluon plasma and therefore preserve the information about the very early stage of the collision when they were born. This singles electroweak bosons as a unique and very interesting class of observables in heavy ion collisions. The ATLAS experiment at LHC measures production of electroweak bosons in $pp$, $p$+Pb and Pb+Pb collisions systems. A review of the existing results is given in this proceeding that includes studies made with isolated photons to constraint kinematic properties and flavour composition of associated jets, measurements of $W$ and $Z$ bosons used to estimate nuclear modification of parton distribution function and the production rates of the bosons used to verify geometric models implied to estimate event centrality. A novel analysis on measuring two particle correlations in \pp collisions where the $Z$ boson is registered is also discussed in the proceeding. This is the first attempt to break into the initial geometry of the \pp collisions by constraining the impact parameter with a hard scattering process. It shows that the strength of the two particle correlations in such collision is $1.08\pm0.06$ above the inclusive. To make the measurement ATLAS solves the technical problem of measuring the underlying event in high pileup condition.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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