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Statements

Subject Item
n2:RIV%2F68407700%3A21340%2F14%3A00221904%21RIV15-MSM-21340___
rdf:type
n11:Vysledek skos:Concept
dcterms:description
The PHENIX experiment at the Relativistic Heavy Ion Collider has performed a systematic study of KS0 and K*0 meson production at midrapidity in p+p,d+Au, and Cu+Cu collisions at root sNN=200 GeV. The KS0 and K*0 mesons are reconstructed via their KS0->π0(->γγ)π0(->γγ) and K*0->K±π-/+ decay modes, respectively. The measured transverse-momentum spectra are used to determine the nuclear modification factor of KS0 and K*0 mesons in d+Au and Cu+Cu collisions at different centralities. In the d+Au collisions, the nuclear modification factor of KS0 and K*0 mesons is almost constant as a function of transverse momentum and is consistent with unity, showing that cold-nuclear-matter effects do not play a significant role in the measured kinematic range. In Cu+Cu collisions, within the uncertainties no nuclear modification is registered in peripheral collisions. In central collisions, both mesons show suppression relative to the expectations from the p+p yield scaled by the number of binary nucleon-nucleon collisions in the Cu+Cu system. In the pT range 2–5 GeV/c, the strange mesons (KS0,K*0) similarly to the ϕ meson with hidden strangeness, show an intermediate suppression between the more suppressed light quark mesons (π0) and the nonsuppressed baryons (p,p). At higher transverse momentum, pT>5 GeV/c, production of all particles is similarly suppressed by a factor of ~2. The PHENIX experiment at the Relativistic Heavy Ion Collider has performed a systematic study of KS0 and K*0 meson production at midrapidity in p+p,d+Au, and Cu+Cu collisions at root sNN=200 GeV. The KS0 and K*0 mesons are reconstructed via their KS0->π0(->γγ)π0(->γγ) and K*0->K±π-/+ decay modes, respectively. The measured transverse-momentum spectra are used to determine the nuclear modification factor of KS0 and K*0 mesons in d+Au and Cu+Cu collisions at different centralities. In the d+Au collisions, the nuclear modification factor of KS0 and K*0 mesons is almost constant as a function of transverse momentum and is consistent with unity, showing that cold-nuclear-matter effects do not play a significant role in the measured kinematic range. In Cu+Cu collisions, within the uncertainties no nuclear modification is registered in peripheral collisions. In central collisions, both mesons show suppression relative to the expectations from the p+p yield scaled by the number of binary nucleon-nucleon collisions in the Cu+Cu system. In the pT range 2–5 GeV/c, the strange mesons (KS0,K*0) similarly to the ϕ meson with hidden strangeness, show an intermediate suppression between the more suppressed light quark mesons (π0) and the nonsuppressed baryons (p,p). At higher transverse momentum, pT>5 GeV/c, production of all particles is similarly suppressed by a factor of ~2.
dcterms:title
Measurement of K^0_S and K^*0 in p+p, d+Au, and Cu+Cu collisions at root s_NN=200 GeV Measurement of K^0_S and K^*0 in p+p, d+Au, and Cu+Cu collisions at root s_NN=200 GeV
skos:prefLabel
Measurement of K^0_S and K^*0 in p+p, d+Au, and Cu+Cu collisions at root s_NN=200 GeV Measurement of K^0_S and K^*0 in p+p, d+Au, and Cu+Cu collisions at root s_NN=200 GeV
skos:notation
RIV/68407700:21340/14:00221904!RIV15-MSM-21340___
n3:aktivita
n19:S n19:P n19:I
n3:aktivity
I, P(LG13031), S
n3:cisloPeriodika
5
n3:dodaniDat
n9:2015
n3:domaciTvurceVysledku
n5:3406377 n5:4553276 n5:5586577 n5:1560727
n3:druhVysledku
n4:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
27819
n3:idVysledku
RIV/68407700:21340/14:00221904
n3:jazykVysledku
n7:eng
n3:klicovaSlova
PHENIX; RHIC; p+p collision; Au+Au collision; Cu+Cu collision; K meson; centrality; strange meson
n3:klicoveSlovo
n6:strange%20meson n6:K%20meson n6:Cu%2BCu%20collision n6:PHENIX n6:p%2Bp%20collision n6:RHIC n6:Au%2BAu%20collision n6:centrality
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[841325F4E1E6]
n3:nazevZdroje
Physical Review C
n3:obor
n17:BF
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
589
n3:projekt
n16:LG13031
n3:rokUplatneniVysledku
n9:2014
n3:svazekPeriodika
90
n3:tvurceVysledku
Virius, Miroslav Adare, A. Král, A. Gallus, Petr Vrba, Václav Tomášek, Michal Liška, Tomáš
n3:wos
000345253400003
s:issn
0556-2813
s:numberOfPages
18
n18:doi
10.1103/PhysRevC.90.054905
n15:organizacniJednotka
21340