Beam Energy and Centrality Dependence of Direct-Photon Emission from Ultrarelativistic Heavy-Ion Collisions
| dc.contributor.author | PHENIX Collaboration | |
| dc.date.accessioned | 2019-07-30T08:24:06Z | |
| dc.date.available | 2019-07-30T08:24:06Z | |
| dc.date.issued | 2019 | |
| dc.identifier.citation | PHENIX Collaboration. (2019). Beam Energy and Centrality Dependence of Direct-Photon Emission from Ultrarelativistic Heavy-Ion Collisions. <i>Physical Review Letters</i>, <i>123</i>(2), Article 022301. <a href="https://doi.org/10.1103/PhysRevLett.123.022301" target="_blank">https://doi.org/10.1103/PhysRevLett.123.022301</a> | |
| dc.identifier.other | CONVID_32167083 | |
| dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/65158 | |
| dc.description.abstract | The PHENIX collaboration presents first measurements of low-momentum (0.41 GeV/c) direct-photon yield dNdirγ/dη is a smooth function of dNch/dη and can be well described as proportional to (dNch/dη)α with α≈1.25. This scaling behavior holds for a wide range of beam energies at the Relativistic Heavy Ion Collider and the Large Hadron Collider, for centrality selected samples, as well as for different A+A collision systems. At a given beam energy, the scaling also holds for high pT (>5 GeV/c), but when results from different collision energies are compared, an additional √sNN-dependent multiplicative factor is needed to describe the integrated-direct-photon yield. | en |
| dc.format.mimetype | application/pdf | |
| dc.language | eng | |
| dc.language.iso | eng | |
| dc.publisher | American Physical Society | |
| dc.relation.ispartofseries | Physical Review Letters | |
| dc.rights | CC BY 4.0 | |
| dc.title | Beam Energy and Centrality Dependence of Direct-Photon Emission from Ultrarelativistic Heavy-Ion Collisions | |
| dc.type | article | |
| dc.identifier.urn | URN:NBN:fi:jyu-201907303719 | |
| dc.contributor.laitos | Fysiikan laitos | fi |
| dc.contributor.laitos | Department of Physics | en |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
| dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
| dc.description.reviewstatus | peerReviewed | |
| dc.relation.issn | 0031-9007 | |
| dc.relation.numberinseries | 2 | |
| dc.relation.volume | 123 | |
| dc.type.version | publishedVersion | |
| dc.rights.copyright | © PHENIX Collaboration, 2019. | |
| dc.rights.accesslevel | openAccess | fi |
| dc.subject.yso | hiukkasfysiikka | |
| dc.format.content | fulltext | |
| jyx.subject.uri | http://www.yso.fi/onto/yso/p15576 | |
| dc.rights.url | https://creativecommons.org/licenses/by/4.0/ | |
| dc.relation.doi | 10.1103/PhysRevLett.123.022301 | |
| dc.type.okm | A1 |
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