在 $\sqrt{s}$ = 13 TeV 的 pp 对撞中测量包容性孤立光子产生截面

arXiv - PHYS - Nuclear Experiment Pub Date : 2024-07-01 DOI:arxiv-2407.01165

ALICE Collaboration

{"title":"在 $\\sqrt{s}$ = 13 TeV 的 pp 对撞中测量包容性孤立光子产生截面","authors":"ALICE Collaboration","doi":"arxiv-2407.01165","DOIUrl":null,"url":null,"abstract":"The production cross section of inclusive isolated photons has been measured\nby the ALICE experiment at the CERN LHC in pp collisions at centre-of-momentum\nenergy of $\\sqrt{s}=13$ TeV collected during the LHC Run 2 data-taking period.\nThe measurement is performed by combining the measurements of the\nelectromagnetic calorimeter EMCal and the central tracking detectors ITS and\nTPC, covering a pseudorapidity range of $|\\eta^{\\gamma}|<0.67$ and a transverse\nmomentum range of $7<p_{\\rm T}^{\\gamma}<200$ GeV/$c$. The result extends to\nlower $p_{\\rm T}^{\\gamma}$ and $x_{\\rm T}^{\\gamma} = 2p_{\\rm\nT}^{\\gamma}/\\sqrt{s}$ ranges, the lowest $x_{\\rm T}^{\\gamma}$ of any isolated\nphoton measurements to date, extending significantly those measured by the\nATLAS and CMS experiments towards lower $p_{\\rm T}^{\\gamma}$ at the same\ncollision energy with a small overlap between the measurements. The measurement\nis compared with next-to-leading order perturbative QCD calculations and the\nresults from the ATLAS and CMS experiments as well as with measurements at\nother collision energies. The measurement and theory prediction are in\nagreement with each other within the experimental and theoretical\nuncertainties.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"49 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Measurement of the inclusive isolated-photon production cross section in pp collisions at $\\\\sqrt{s}$ = 13 TeV\",\"authors\":\"ALICE Collaboration\",\"doi\":\"arxiv-2407.01165\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The production cross section of inclusive isolated photons has been measured\\nby the ALICE experiment at the CERN LHC in pp collisions at centre-of-momentum\\nenergy of $\\\\sqrt{s}=13$ TeV collected during the LHC Run 2 data-taking period.\\nThe measurement is performed by combining the measurements of the\\nelectromagnetic calorimeter EMCal and the central tracking detectors ITS and\\nTPC, covering a pseudorapidity range of $|\\\\eta^{\\\\gamma}|<0.67$ and a transverse\\nmomentum range of $7<p_{\\\\rm T}^{\\\\gamma}<200$ GeV/$c$. The result extends to\\nlower $p_{\\\\rm T}^{\\\\gamma}$ and $x_{\\\\rm T}^{\\\\gamma} = 2p_{\\\\rm\\nT}^{\\\\gamma}/\\\\sqrt{s}$ ranges, the lowest $x_{\\\\rm T}^{\\\\gamma}$ of any isolated\\nphoton measurements to date, extending significantly those measured by the\\nATLAS and CMS experiments towards lower $p_{\\\\rm T}^{\\\\gamma}$ at the same\\ncollision energy with a small overlap between the measurements. The measurement\\nis compared with next-to-leading order perturbative QCD calculations and the\\nresults from the ATLAS and CMS experiments as well as with measurements at\\nother collision energies. The measurement and theory prediction are in\\nagreement with each other within the experimental and theoretical\\nuncertainties.\",\"PeriodicalId\":501206,\"journal\":{\"name\":\"arXiv - PHYS - Nuclear Experiment\",\"volume\":\"49 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Nuclear Experiment\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2407.01165\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Nuclear Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2407.01165","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

欧洲核子研究中心大型强子对撞机的ALICE实验在大型强子对撞机运行2数据采集期间，在动量中心能量为$\sqrt{s}=13$ TeV的pp对撞中测量了包容孤立光子的产生截面。测量是通过结合电磁量热计EMCal和中央跟踪探测器ITS和TPC的测量来进行的，覆盖了$|\eta^\{gamma}|<0.67$的伪振幅范围和$7本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

Measurement of the inclusive isolated-photon production cross section in pp collisions at $\sqrt{s}$ = 13 TeV

The production cross section of inclusive isolated photons has been measured by the ALICE experiment at the CERN LHC in pp collisions at centre-of-momentum energy of $\sqrt{s}=13$ TeV collected during the LHC Run 2 data-taking period. The measurement is performed by combining the measurements of the electromagnetic calorimeter EMCal and the central tracking detectors ITS and TPC, covering a pseudorapidity range of $|\eta^{\gamma}|<0.67$ and a transverse momentum range of $7

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

arXiv - PHYS - Nuclear Experiment

自引率

0.00%

发文量