? meson production in p plus Al, p plus Au, d + Au, and He-3 +Au collisions at ?sNN=200 GeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10455662" target="_blank" >RIV/00216208:11320/22:10455662 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/22:00360517

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=YJfIkqNfTt" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=YJfIkqNfTt</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.106.014908" target="_blank" >10.1103/PhysRevC.106.014908</a>

Jazyk výsledku

angličtina

Název v původním jazyce

? meson production in p plus Al, p plus Au, d + Au, and He-3 +Au collisions at ?sNN=200 GeV

Popis výsledku v původním jazyce

Small nuclear collisions are mainly sensitive to cold-nuclear-matter effects; however, the collective behavior observed in these collisions shows a hint of hot-nuclear-matter effects. The identified-particle spectra, especially the ?? mesons which contain strange and antistrange quarks and have a relatively small hadronic-interaction cross section, are a good tool to study these effects. The PHENIX experiment has measured ?? mesons in a specific set of small collision systems p + Al, p + Au, and 3He +Au, as well as d + Au [Adare et al., Phys. Rev. C 83, 024909 (2011)], at .???/sNN = 200 GeV. The transverse-momentum spectra and nuclear-modification factors are presented and compared to theoretical-model predictions. The comparisons with different calculations suggest that quark-gluon plasma may be formed in these small collision systems at .???/sNN = 200 GeV. However, the volume and the lifetime of the produced medium may be insufficient for observing strangeness-enhancement and jet-quenching effects. The comparison with calculations suggests that the main production mechanisms of ?? mesons at midrapidity may be different in p + Al versus p/d/ 3He +Au collisions at .???/sNN = 200 GeV. While thermal quark recombination seems to dominate in p/d/ 3He +Au collisions, fragmentation seems to be the main production mechanism in p + Al collisions.

Název v anglickém jazyce

? meson production in p plus Al, p plus Au, d + Au, and He-3 +Au collisions at ?sNN=200 GeV

Popis výsledku anglicky

Small nuclear collisions are mainly sensitive to cold-nuclear-matter effects; however, the collective behavior observed in these collisions shows a hint of hot-nuclear-matter effects. The identified-particle spectra, especially the ?? mesons which contain strange and antistrange quarks and have a relatively small hadronic-interaction cross section, are a good tool to study these effects. The PHENIX experiment has measured ?? mesons in a specific set of small collision systems p + Al, p + Au, and 3He +Au, as well as d + Au [Adare et al., Phys. Rev. C 83, 024909 (2011)], at .???/sNN = 200 GeV. The transverse-momentum spectra and nuclear-modification factors are presented and compared to theoretical-model predictions. The comparisons with different calculations suggest that quark-gluon plasma may be formed in these small collision systems at .???/sNN = 200 GeV. However, the volume and the lifetime of the produced medium may be insufficient for observing strangeness-enhancement and jet-quenching effects. The comparison with calculations suggests that the main production mechanisms of ?? mesons at midrapidity may be different in p + Al versus p/d/ 3He +Au collisions at .???/sNN = 200 GeV. While thermal quark recombination seems to dominate in p/d/ 3He +Au collisions, fragmentation seems to be the main production mechanism in p + Al collisions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review C

ISSN

2469-9985

e-ISSN

2469-9993

Svazek periodika

106

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

014908

Kód UT WoS článku

000839437500002

EID výsledku v databázi Scopus

2-s2.0-85136470587