prikaz prve stranice dokumenta Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions
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Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions
Physical Review Letters, 123 (2018), 2; 022301. https://doi.org/10.1103/PhysRevLett.123.022301
(PHENIX Collaboration) Adare, A.; ...; Makek, Mihael; ...; Zou, L.

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Adare, A., Makek, M. i Zou, L. (2018). Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions. Physical Review Letters, 123. (2). doi: 10.1103/PhysRevLett.123.022301

Adare, A., et al. "Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions." Physical Review Letters, vol. 123, br. 2, 2018. https://doi.org/10.1103/PhysRevLett.123.022301

Adare, A., Mihael Makek i L. Zou. "Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions." Physical Review Letters 123, br. 2 (2018). https://doi.org/10.1103/PhysRevLett.123.022301

Adare, A., Makek, M. i Zou, L. (2018) 'Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions', Physical Review Letters, 123(2). doi: 10.1103/PhysRevLett.123.022301

Adare A, Makek M, Zou L. Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions. Physical Review Letters [Internet]. 2018. [pristupljeno 10.10.2024.];123(2). doi: 10.1103/PhysRevLett.123.022301

A. Adare, M. Makek i L. Zou, "Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions", Physical Review Letters, vol. 123, br. 2, 2018. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:689890. [Citirano: 10.10.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:689890
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Podaci o radu
Naslov (engleski)Beam Energy and Centrality Dependence of Direct- Photon Emission from Ultrarelativistic Heavy-Ion Collisions
AutorA. Adare
Autor
...
AutorMihael Makek
MBZ: 256122
Autor
...
AutorL. Zou
KolaboracijaPHENIX Collaboration
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
The PHENIX collaboration presents first measurements of low-momentum (0.4<pT<3 GeV/c) direct-photon yields from Au+Au collisions at √sNN=39 and 62.4 GeV. For both beam energies the direct-photon yields are substantially enhanced with respect to expectations from prompt processes, similar to the yields observed in Au+Au collisions at √sNN=200. Analyzing the photon yield as a function of the experimental observable dNch/dη reveals that the low-momentum (>1 GeV/c) direct-photon yield dNγdir/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.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaPhysical Review Letters
Brojčani podacivol. 123, br. 2, 022301
p-ISSN0031-9007
e-ISSN1079-7114
DOIhttps://doi.org/10.1103/PhysRevLett.123.022301
URN:NBNurn:nbn:hr:217:689890
Datum objave publikacije2018
URL dokumentahttps://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.022301
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Imenovanje 4.0 međunarodna (CC BY 4.0)
Javna napomenaPublished by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. Received 15 May 2018. Revised 27 April 2019. Published 10 July 2019.
Datum i vrijeme pohrane2020-08-24 13:11:00