R. Bailhache, D. Bonocore, P. Braun-Munzinger, X. Feal, S. Floerchinger, J. Klein, K. Köhler, P. Lebiedowicz, C. M. Peter, R. Rapp, K. Reygers, W. Schäfer, H. S. Scheid, K. Schweda, J. Stachel, H. van Hees, C. A. van Veen, M. Völkl
{"title":"Anomalous soft photons: status and perspectives","authors":"R. Bailhache, D. Bonocore, P. Braun-Munzinger, X. Feal, S. Floerchinger, J. Klein, K. Köhler, P. Lebiedowicz, C. M. Peter, R. Rapp, K. Reygers, W. Schäfer, H. S. Scheid, K. Schweda, J. Stachel, H. van Hees, C. A. van Veen, M. Völkl","doi":"arxiv-2406.17959","DOIUrl":null,"url":null,"abstract":"This report summarizes the work of the EMMI Rapid Reaction Task Force on\n\"Real and Virtual Photon Production at Ultra-Low Transverse Momentum and Low\nMass at the LHC\". We provide an overview of the soft-photon puzzle, i.e., of\nthe long-standing discrepancy between experimental data and predictions based\non Low's soft-photon theorem, also referred to as \"anomalous\" soft photon\nproduction, and we review the current theoretical understanding of soft\nradiation and soft theorems. We also focus on low-mass dileptons as a tool for\ndetermining the electrical conductivity of the medium produced in high-energy\nnucleus-nucleus collisions. We discuss how both topics can be addressed with\nthe planned ALICE 3 detector at the LHC.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"10 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-06-25","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-2406.17959","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This report summarizes the work of the EMMI Rapid Reaction Task Force on
"Real and Virtual Photon Production at Ultra-Low Transverse Momentum and Low
Mass at the LHC". We provide an overview of the soft-photon puzzle, i.e., of
the long-standing discrepancy between experimental data and predictions based
on Low's soft-photon theorem, also referred to as "anomalous" soft photon
production, and we review the current theoretical understanding of soft
radiation and soft theorems. We also focus on low-mass dileptons as a tool for
determining the electrical conductivity of the medium produced in high-energy
nucleus-nucleus collisions. We discuss how both topics can be addressed with
the planned ALICE 3 detector at the LHC.
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