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Showing 2008 · nucl-exShow all

41 papers · 2 filters

nucl-ex2008★ 4 cited

Status and overview of development of the Silicon Pixel Detector for the PHENIX experiment at the BNL RHIC

Ryo Ichimiya, Nicole Apadula, Yasuyuki Akiba +19

We have developed a silicon pixel detector to enhance the physics capabilities of the PHENIX experiment. This detector, consisting of two layers of sensors, will be installed aroun…

nucl-ex2008★ 240 cited

Spectra and radial flow at RHIC with Tsallis statistics in a Blast-Wave description

Zebo Tang, Yichun Xu, Lijuan Ruan +3

We have implemented the Tsallis statistics in a Blast-Wave model and applied it to mid-rapidity transverse-momentum spectra of identified particles measured at RHIC. This new Tsall…

nucl-ex2008★ 108 cited

System size dependence of cluster properties from two-particle angular correlations in Cu+Cu and Au+Au collisions at = 200 GeV

B. Alver

We present results on two-particle angular correlations in Cu+Cu and Au+Au collisions at a center of mass energy per nucleon pair of 200 GeV over a broad range of pseudorapidity ($…

nucl-ex2008★ 52 cited

Observation of Two-source Interference in the Photoproduction Reaction

B. I. Abelev

In ultra-peripheral relativistic heavy-ion collisions, a photon from the electromagnetic field of one nucleus can fluctuate to a quark-antiquark pair and scatter from the other nuc…

nucl-ex2008★ 5 cited

Successes and failures with hard probes

M. J. Tannenbaum

The two major pillars of searches for the Quark Gluon Plasma have been: J/ suppression, proposed in 1986, and observed at both SPS fixed target energies and at RHIC; and, more r…

nucl-ex2008★ 96 cited

Energy and system size dependence of ϕmeson production in Cu+Cu and Au+Au collisions

STAR Collaboration

We study the beam-energy and system-size dependence of ϕmeson production (using the hadronic decay mode ϕ-- K+K-) by comparing the new results from Cu+Cu collisions and previously…

nucl-ex2008★ 64 cited

High Resolution Spectroscopy of 16N_Lambda by Electroproduction

F. Cusanno, G. M. Urciuoli, A. Acha +96

An experimental study of the 16O(e,e'K^+)16N_Lambda reaction has been performed at Jefferson Lab. A thin film of falling water was used as a target. This permitted a simultaneous m…

nucl-ex2008★ 6 cited

How to Make Sense of the Jet Correlations Results at RHIC?

Jiangyong Jia

We review the di-hadron correlation results from RHIC. A consistent physical picture was constructed based on the correlation landscape in , , and particle species. W…

nucl-ex2008

A Four Component Picture for Jet Induced Correlations in Heavy Ion Collisions?

Anne Sickles

These proceedings review recent results from two and three particle correlations in heavy ion collisions. In particular we discuss the modified structure of the away side jet corre…

nucl-ex2008

Quarkonia Measurements with STAR

Zhangbu Xu, Thomas Ullrich

We report results on quarkonium production from the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). J/psi spectra in p+p and Cu+Cu collisions at sqrt(s) = 200 GeV wi…

nucl-ex2008★ 144 cited

Measurements of meson production in relativistic heavy-ion collisions at RHIC

The STAR Collaboration, B. I. Abelev

We present results for the measurement of meson production via its charged kaon decay channel in Au+Au collisions at , 130, and 200 GeV, an…

nucl-ex2008★ 2 cited

Photoproduction in Ultra-Peripheral Heavy Ion Collisions at STAR

Boris Grube

We present recent STAR results on photoproduction in ultra-peripheral relativistic heavy ion collisions. In these collisions the impact parameter of the beam particles is larger th…

nucl-ex2008

Central Production with Tagged Forward Protons and the Star Detector at RHIC

Wlodek Guryn, STAR Collaboration

We describe a setup which will allow extend the physics reach of the STAR detector at RHIC to include the measurement of very forward protons. Tagging on very forward protons, dete…

nucl-ex2008★ 16 cited

Scaling properties in bulk and p-dependent particle production near midrapidity in relativistic heavy ion collisions

PHOBOS Collaboration, B. Alver, B. B. Back +56

The centrality dependence of the midrapidity charged-particle multiplicity density (1) is presented for Au+Au and Cu+Cu collisions at RHIC over a broad range of collision e…

nucl-ex2008★ 27 cited

Elliptic flow fluctuations and correlations in Au+Au collisions at GeV

Paul Sorensen

In this talk, we report an analysis of elliptic flow (), non-flow (), and fluctuations () for the STAR collaboration at middle rapidity in $\sqrt{s_{_{…

nucl-ex2008★ 978 cited

Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR

STAR Collaboration, B. I. Abelev

Identified charged particle spectra of , , and $\pbar$ at mid-rapidity () measured by the $\dedx$ method in the STAR-TPC are reported for and d+…

nucl-ex2008★ 55 cited

Beam-Energy and System-Size Dependence of Dynamical Net Charge Fluctuations

B. I. Abelev, M. M. Aggarwal, Z. Ahammed +360

We present measurements of net charge fluctuations in collisions at 19.6, 62.4, 130, and 200 GeV, collisions at 62.4, 200…

nucl-ex2008★ 121 cited

System-size independence of directed flow at the Relativistic Heavy-Ion Collider

STAR Collaboration, B. I. Abelev

We measure directed flow () for charged particles in Au+Au and Cu+Cu collisions at 200 GeV and 62.4 GeV, as a function of pseudorapidity (), transverse mo…

nucl-ex2008★ 139 cited

Heavy flavor in heavy-ion collisions at RHIC and RHIC II

A. D. Frawley, T. Ullrich, R. Vogt

In the initial years of operation, experiments at the Relativistic Heavy Ion Collider (RHIC) have identified a new form of matter formed in nuclei-nuclei collisions at energy densi…

nucl-ex2008★ 314 cited

Independent Measurement of the Total Active 8B Solar Neutrino Flux Using an Array of 3He Proportional Counters at the Sudbury Neutrino Observatory

SNO Collaboration

The Sudbury Neutrino Observatory (SNO) used an array of 3He proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the to…

nucl-ex2008★ 138 cited

The PHOBOS Glauber Monte Carlo

B. Alver, M. Baker, C. Loizides +1

``Glauber'' models are used to calculate geometric quantities in the initial state of heavy ion collisions, such as impact parameter, number of participating nucleons and initial e…

nucl-ex2008★ 18 cited

Azimuthal dependence of pion source radii in Pb+Au collisions at 158 A GeV

CERES Collaboration, D. Adamova, G. Agakichiev +54

We present results of a two-pion correlation analysis performed with the Au+Pb collision data collected by the upgraded CERES experiment in the fall of 2000. The analysis was done…

nucl-ex2008★ 78 cited

Charged hadron multiplicity fluctuations in Au+Au and Cu+Cu collisions from sqrt(s_NN) = 22.5 to 200 GeV

A. Adare

A comprehensive survey of event-by-event fluctuations of charged hadron multiplicity in relativistic heavy ions is presented. The survey covers Au+Au collisions at sqrt(s_NN) = 62.…

nucl-ex2008★ 20 cited

Recent results from BRAHMS

R. Debbe

The BRAHMS collaboration ended its data collection program in 2006. We are now well advanced in the analysis of a comprehensive set of data that spans systems ranging in mass from…