Study of Cronin effect and nuclear modification of strange particles in d–Au and Au–Au collisions at 200 GeV in PHENIX

It has been argued recently that the so-called nuclear modification factor (RAA) is an observable useful for identifying the quark–gluon plasma. We discuss the effect of Fermi motion in nuclei on RAA at CERN SPS and BNL RHIC energies. Contrary to the simple intuition, rather large effects are found for CERN SPS. The Fermi motion in nuclei contributes significantly to the Cronin effect. The effect found is qualitatively similar to the one observed experimentally at CERN energies and similar to the one obtained in the models of multiple scattering of initial partons. We predict different size of the effect for different types of hadrons, especially at low energies.

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Nuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss inAu+AuCollisions atsNN=200 GeV

Physical Review Letters ◽

10.1103/physrevlett.96.032301 ◽

2006 ◽

Vol 96 (3) ◽

Cited By ~ 230

Author(s):

S. S. Adler ◽

S. Afanasiev ◽

C. Aidala ◽

N. N. Ajitanand ◽

Y. Akiba ◽

...

Keyword(s):

Energy Loss ◽

Heavy Quark ◽

Electron Spectra ◽

Nuclear Modification ◽

200 Gev ◽

Quark Energy Loss

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Nuclear modification factor for charged pions and protons at forward rapidity in central Au+Au collisions at 200 GeV

Physics Letters B ◽

10.1016/j.physletb.2007.05.017 ◽

2007 ◽

Vol 650 (4) ◽

pp. 219-223 ◽

Cited By ~ 13

Author(s):

I. Arsene ◽

I.G. Bearden ◽

D. Beavis ◽

C. Besliu ◽

B. Budick ◽

...

Keyword(s):

Forward Rapidity ◽

Nuclear Modification Factor ◽

Nuclear Modification ◽

Charged Pions ◽

200 Gev ◽

Modification Factor

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Open Bottom Production in Au+Au Collisions at s NN = 200 GeV with the STAR Experiment

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194518600145 ◽

2018 ◽

Vol 46 ◽

pp. 1860014 ◽

Cited By ~ 1

Author(s):

Shenghui Zhang

Keyword(s):

Heavy Flavor ◽

Vertex Detector ◽

Significance Level ◽

Decay Channels ◽

Nuclear Modification ◽

Decay Products ◽

Charm Hadron ◽

200 Gev ◽

Star Experiment ◽

Nuclear Modification Factors

In these proceedings, we present measurements of open bottom hadron production through multiple decay channels in Au+Au collisions at [Formula: see text] = 200 GeV by the STAR experiment. Namely, measurements of nuclear modification factors for electrons, [Formula: see text], and [Formula: see text] from open bottom hadron decays are shown. The decay products are topologically identified utilizing the Heavy Flavor Tracker, a silicon vertex detector installed at STAR during the period of 2014 - 2016. It enables precise reconstruction of displaced decay vertices. The results show large suppression for non-prompt [Formula: see text] and non-prompt [Formula: see text] at high transverse momenta, and indicate less suppression for electrons from bottom hadron decays than for those from charm hadron decays at [Formula: see text] significance level.

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Cronin effect and high p⊥ suppression from Color Glass Condensate

International Journal of Modern Physics A ◽

10.1142/s0217751x05027977 ◽

2005 ◽

Vol 20 (19) ◽

pp. 4393-4398

Author(s):

KAZUNORI ITAKURA

Keyword(s):

Color Glass ◽

Color Glass Condensate ◽

Nuclear Modification Factor ◽

Nuclear Modification ◽

Cronin Effect ◽

Modification Factor ◽

Gluon Distributions

We present an analytical understanding of properties of the ratio between gluon distributions of a nucleus and a proton based on the framework of the Color Glass Condensate. This ratio is closely related to the nuclear modification factor in the deuteron- Au collisions measured by Brahms experiment at RHIC.

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