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Production probabilities for strange clusters and strange matter in Au+Au collisions at AGS energy are obtained in the thermal fireball model. The only parameters of the model, the baryon chemical potential and temperature, were determined…

Nuclear Theory · Physics 2009-10-28 P. Braun-Munzinger , J. Stachel

Dileptons provide ideal penetrating probes of the evolution of strongly-interacting matter. With the Time-of-Flight upgrade, STAR is in a unique position to provide large-acceptance dielectron measurements. We discuss preliminary dielectron…

Nuclear Experiment · Physics 2015-06-11 Frank Geurts

We present new measurements of $\Lambda-\Lambda$ correlations, which are closely related to $H$-dibaryon: a six quark state predicted by Jaffe (1977), in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV from the STAR experiment. Fits to…

Nuclear Experiment · Physics 2019-08-13 N. Shah

The recent results on di-electron production in $p+p$ and Au+Au collisions at $\sqrt{s_{_{NN}}} = 200$ GeV are presented. The cocktail simulations of di-electrons from light and heavy flavor hadron decays are reported and compared with…

Nuclear Experiment · Physics 2019-08-21 Lijuan Ruan

In this contribution we report $e^{+}e^{-}$ spectra with various invariant mass and p$_{T}$ differentials in Au$+$Au collisions at $\sqrt{s_{NN}}$=200 GeV and U$+$U collisions at $\sqrt{s_{NN}}$=193 GeV. The structure of the t ($t\approx…

Nuclear Experiment · Physics 2018-03-14 J. D. Brandenburg

We give detailed predictions for the spectral signatures arising from photon-particle oscillations in astrophysical objects. The calculations include quantum electrodynamic effects as well as those due to active relativistic plasma. We show…

Astrophysics · Physics 2011-05-12 Doron Chelouche , Raul Rabadan , Sergey Pavlov , Francisco Castejon

We report measurements of the ratios of identified hadrons (pi,K,p,Lambda) in Au+Au collisions at sqrt(s_NN) = 200 GeV as a function of both collision centrality and transverse momentum (p_T). Ratios of anti-baryon to baryon yields are…

Nuclear Experiment · Physics 2009-11-10 M. A. C. Lamont

We present analysis of J/$\psi$ production over the range $-1.0 < \eta < 4.2$ in p+p and d+Au collisions using di-electron data taken during the 2008 run with the STAR experiment at Brookhaven National Laboratory. STAR's unique forward…

Nuclear Experiment · Physics 2019-08-13 Chris Perkins

We report preliminary results on the centrality dependence of the $\Xi^{-}$ and $\bar{\Xi}^{+}$ production at mid-rapidity in $\sqrt{s_{NN}}=130$ GeV Au+Au collisions from the STAR experiment. For the most central data the obtained yields…

Nuclear Experiment · Physics 2009-11-07 Javier Castillo

Results of a systematic study of fully integrated particle multiplicities in central Au-Au and Pb-Pb collisions at beam momenta 1.7 A GeV, 11.6 A GeV (Au-Au) and 158 A GeV (Pb-Pb) using a statistical-thermal model are presented. The close…

High Energy Physics - Phenomenology · Physics 2017-08-23 F. Becattini , J. Cleymans , A. Keranen , E. Suhonen , K. Redlich

A summary of the heavy flavor results from the STAR experiment is presented. Both open heavy flavor as well as quarkonia measurements are presented. A strong suppression of heavy flavor non-photonic electrons is observed in central Au+Au…

High Energy Physics - Experiment · Physics 2019-08-13 Jaroslav Bielcik

The STAR detector at RHIC, due to its large uniform acceptance and excellent particle identification capabilities, has measured a variety of hadron species ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$, $K^{0}_{S}$, $\Lambda$, $\bar{\Lambda}$,…

Nuclear Experiment · Physics 2019-08-13 Sabita Das

The experiment of Ar+Au reactions at 30 MeV/u have been performed using the Compact Spectrometer for Heavy IoN Experiments (CSHINE) in phase I. The light-charged particles are measured by the silicon stripe telescopes in coincidence with…

In e+e- collisions the particle spectra at low momenta reflect the properties of the underlying "soft" QCD gluon bremsstrahlung: the particle density, in the limit p\to 0, becomes independent of the incoming energy \sqrt{s} and directly…

High Energy Physics - Phenomenology · Physics 2015-03-13 Wolfgang Ochs , Valery A. Khoze , M. G. Ryskin

This paper presents the most recent nuclear k_T measurements from STAR derived from multiparticle jet reconstruction of d+Au and p+p collisions at sqrt(s)=200 GeV. Since jets reconstructed from multiple particles are relatively free of…

Nuclear Experiment · Physics 2008-11-26 Thomas Henry

Longitudinal density correlations of produced matter in Au+Au collisions at sqrt(s_NN)=200 GeV have been measured from the inclusive charged particle distributions as a function of pseudorapidity window sizes. The extracted \alpha \xi…

Nuclear Experiment · Physics 2008-11-26 PHENIX Collaboration , S. S. Adler

Measurements of strangeness production in jets help illuminate the QCD mechanisms in fragmentation. Furthermore, they provide a crucial baseline for heavy-ion studies where modifications in jet chemistry have recently been predicted. We…

Nuclear Experiment · Physics 2019-08-14 Anthony R. Timmins

We present the STAR measurement of transverse momentum spectra at mid-rapidity for identified particles in p+p collisions at $\sqrt{s}$ = 200 GeV. These high statistics data are ideal for comparing to existing leading- and next-to-leading…

High Energy Physics - Experiment · Physics 2007-07-11 Mark Heinz

We present preliminary results of the STAR experiment at RHIC on exotic particle searches in minimum bias Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. We observe a narrow peak at 1734 $\pm$ 0.5 $\pm$ 5 MeV in the $\Lambda K^0_s$ invariant…

High Energy Physics - Experiment · Physics 2009-11-10 Sonia Kabana

One of the primary aims of heavy-ion collisions is to map the QCD phase diagram and search for different phases and phase boundaries. RHIC Energy Scan Program was launched to address this goal by studying heavy-ion collisions at different…

Nuclear Experiment · Physics 2019-08-13 Lokesh Kumar
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