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Showing 2011 · nucl-exShow all

18 papers · 2 filters

nucl-ex2011★ 51 cited

Energy and system-size dependence of two- and four-particle measurements in heavy-ion collisions at RHIC and their implications on flow fluctuations and nonflow

The STAR Collaboration, G. Agakishiev, M. M. Aggarwal +344

We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants ( and ) for Au+Au and Cu+Cu collisions at center of…

nucl-ex2011★ 39 cited

Directed Flow of Identified Particles in Au + Au Collisions at $\sqrtsNN = 200$ GeV at RHIC

the STAR Collaboration

STAR's measurements of directed flow () around midrapidity for , K, K, and in Au + Au collisions at $\sqrtsNN = 200$ GeV are presented. A…

nucl-ex2011★ 32 cited

System size and energy dependence of near-side di-hadron correlations

STAR Collaboration, G. Agakishiev, M. M. Aggarwal +353

Two-particle azimuthal () and pseudorapidity () correlations using a trigger particle with large transverse momentum () in +Au, Cu+Cu and Au+Au collisions at $\sqrt…

nucl-ex2011★ 100 cited

Identified hadron compositions in p+p and Au+Au collisions at high transverse momenta at GeV

STAR Collaboration

We report transverse momentum ( GeV/) spectra of , , , , , and at mid-rapidity in p+p and Au+Au collisions at $\sq…

nucl-ex2011★ 4 cited

Upper limits for the photoproduction cross section for the Phi--(1860) pentaquark state off the deuteron

H. Egiyan, J. Langheinrich, R. W. Gothe +10

We searched for the Phi--(1860) pentaquark in the photoproduction process off the deuteron in the Xi- pi- decay channel using CLAS. The invariant mass spectrum of the Xi- pi- syste…

nucl-ex2011★ 29 cited

Directed and elliptic flow of charged particles in Cu+Cu collisions at 22.4 GeV

G. Agakishiev, M. M. Aggarwal, Z. Ahammed +366

This paper reports results for directed flow and elliptic flow of charged particles in Cu+Cu collisions at 22.4 GeV at the Relativistic Heavy Ion C…

nucl-ex2011★ 62 cited

Anomalous centrality evolution of two-particle angular correlations from Au-Au collisions at = 62 and 200 GeV

STAR Collaboration, G. Agakishiev, M. M. Aggarwal +350

We present two-dimensional (2D) two-particle angular correlations on relative pseudorapidity and azimuth for charged particles from Au-Au collisions at $\sqrt{s_{\rm NN}} =…

nucl-ex2011★ 145 cited

Dependence on pseudorapidity and centrality of charged hadron production in PbPb collisions at a nucleon-nucleon centre-of-mass energy of 2.76 TeV

CMS Collaboration

A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76 TeV per nuc…

nucl-ex2011★ 36 cited

Photoproduction in AuAu Collisions at =62.4 GeV with STAR

G. Agakishiev

Vector mesons may be photoproduced in relativistic heavy-ion collisions when a virtual photon emitted by one nucleus scatters from the other nucleus, emerging as a vector meson. Th…

nucl-ex2011★ 130 cited

Strangeness Enhancement in Cu+Cu and Au+Au Collisions at \sqrt{s_{NN}} = 200 GeV

STAR Collaboration, H. Agakishiev, M. M. Aggarwal +369

We report new STAR measurements of mid-rapidity yields for the , , , , , , particles in Cu+Cu collisions at \sNN{200}, and…

nucl-ex2011★ 90 cited

Evolution of the differential transverse momentum correlation function with centrality in Au+Au collisions at GeV

STAR Collaboration

We present first measurements of the evolution of the differential transverse momentum correlation function, {\it C}, with collision centrality in Au+Au interactions at $\sqrt{s_{N…

nucl-ex2011★ 195 cited

Suppression of Upsilon excited states in PbPb collisions at a nucleon-nucleon centre-of-mass energy of 2.76 TeV

CMS Collaboration

A comparison of the relative yields of Upsilon resonances in the mu(+) mu(-) decay channel in PbPb and pp collisions at a centre-of-mass energy per nucleon pair of 2.76 TeV, is per…

nucl-ex2011★ 157 cited

Long-range and short-range dihadron angular correlations in central PbPb collisions at a nucleon-nucleon center of mass energy of 2.76 TeV

CMS Collaboration

First measurements of dihadron correlations for charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV over a broad rang…

nucl-ex2011★ 195 cited

Observation of the antimatter helium-4 nucleus

STAR Collaboration

High-energy nuclear collisions create an energy density similar to that of the universe microseconds after the Big Bang, and in both cases, matter and antimatter are formed with co…

nucl-ex2011★ 109 cited

Study of Z boson production in PbPb collisions at nucleon-nucleon centre of mass energy = 2.76 TeV

CMS Collaboration

A search for Z bosons in the mu^+mu^- decay channel has been performed in PbPb collisions at a nucleon-nucleon centre of mass energy = 2.76 TeV with the CMS detector at the LHC, in…

nucl-ex2011★ 16 cited

Studies of di-jet survival and surface emission bias in Au+Au collisions via angular correlations with respect to back-to-back leading hadrons

H. Agakishiev, M. M. Aggarwal, Z. Ahammed +373

We report first results from an analysis based on a new multi-hadron correlation technique, exploring jet-medium interactions and di-jet surface emission bias at RHIC. Pairs of bac…

nucl-ex2011★ 51 cited

High non-photonic electron production in + collisions at = 200 GeV

STAR Collaboration, H. Agakishiev

We present the measurement of non-photonic electron production at high transverse momentum ( 2.5 GeV/) in + collisions at = 200 GeV using data recorde…

nucl-ex2011★ 709 cited

Observation and studies of jet quenching in PbPb collisions at nucleon-nucleon center-of-mass energy = 2.76 TeV

CMS Collaboration

Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV was studied with the CMS detector at the LHC, using a data sample corresponding to an integ…