{"title":"利用FoCal在UPCs中产生矢量介子","authors":"A. Bylinkin, J. Nystrand, D. Takaki","doi":"10.1088/1361-6471/acc419","DOIUrl":null,"url":null,"abstract":"\n We discuss the physics prospects of photon-induced measurements using the high-granularity FoCal detector to be installed at the ALICE experiment, covering the pseudorapidity interval 3.4 ≤ η ≤ 5.8. This new detector, scheduled to be in operation from Run 4, will explore the small Bjorken-x physics region in an unprecedented way. In this region the gluon saturation phenomenon is expected to be dominant. Combined with the rest of the ALICE subdetectors, including the zero degree calorimenters, FoCal will serve to reconstruct in a model-independent way the measured photoproduction cross sections for vectors mesons in a wide range of photon-target energies, down to x values of about 7 × 10-6 and 2 × 10-6 in ultra-peripheral photon–proton and photon–lead collisions, respectively.","PeriodicalId":16766,"journal":{"name":"Journal of Physics G: Nuclear and Particle Physics","volume":" ","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Vector meson photoproduction in UPCs with FoCal\",\"authors\":\"A. Bylinkin, J. Nystrand, D. Takaki\",\"doi\":\"10.1088/1361-6471/acc419\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n We discuss the physics prospects of photon-induced measurements using the high-granularity FoCal detector to be installed at the ALICE experiment, covering the pseudorapidity interval 3.4 ≤ η ≤ 5.8. This new detector, scheduled to be in operation from Run 4, will explore the small Bjorken-x physics region in an unprecedented way. In this region the gluon saturation phenomenon is expected to be dominant. Combined with the rest of the ALICE subdetectors, including the zero degree calorimenters, FoCal will serve to reconstruct in a model-independent way the measured photoproduction cross sections for vectors mesons in a wide range of photon-target energies, down to x values of about 7 × 10-6 and 2 × 10-6 in ultra-peripheral photon–proton and photon–lead collisions, respectively.\",\"PeriodicalId\":16766,\"journal\":{\"name\":\"Journal of Physics G: Nuclear and Particle Physics\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2022-11-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Physics G: Nuclear and Particle Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1088/1361-6471/acc419\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Physics G: Nuclear and Particle Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1361-6471/acc419","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
We discuss the physics prospects of photon-induced measurements using the high-granularity FoCal detector to be installed at the ALICE experiment, covering the pseudorapidity interval 3.4 ≤ η ≤ 5.8. This new detector, scheduled to be in operation from Run 4, will explore the small Bjorken-x physics region in an unprecedented way. In this region the gluon saturation phenomenon is expected to be dominant. Combined with the rest of the ALICE subdetectors, including the zero degree calorimenters, FoCal will serve to reconstruct in a model-independent way the measured photoproduction cross sections for vectors mesons in a wide range of photon-target energies, down to x values of about 7 × 10-6 and 2 × 10-6 in ultra-peripheral photon–proton and photon–lead collisions, respectively.
期刊介绍：
Journal of Physics G: Nuclear and Particle Physics (JPhysG) publishes articles on theoretical and experimental topics in all areas of nuclear and particle physics, including nuclear and particle astrophysics. The journal welcomes submissions from any interface area between these fields.
All aspects of fundamental nuclear physics research, including:
nuclear forces and few-body systems;
nuclear structure and nuclear reactions;
rare decays and fundamental symmetries;
hadronic physics, lattice QCD;
heavy-ion physics;
hot and dense matter, QCD phase diagram.
All aspects of elementary particle physics research, including:
high-energy particle physics;
neutrino physics;
phenomenology and theory;
beyond standard model physics;
electroweak interactions;
fundamental symmetries.
All aspects of nuclear and particle astrophysics including:
nuclear physics of stars and stellar explosions;
nucleosynthesis;
nuclear equation of state;
astrophysical neutrino physics;
cosmic rays;
dark matter.
JPhysG publishes a variety of article types for the community. As well as high-quality research papers, this includes our prestigious topical review series, focus issues, and the rapid publication of letters.
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