K* production in Cu+Cu and Au+Au collisions at sqrt(s_{NN}) = 62.4 GeV and 200 GeV in STAR

Abstract

We report the measurements of $p_T$ spectra of $K^{\ast }$ up to intermediate $p_T$ region in mid-rapidity through its hadronic decay channel using the STAR detector in Au+Au and Cu+Cu collisions at $\sqrt{s_{\mathrm{NN}}}$= 62.4 GeV and 200 GeV. Particle ratios such as $K^{\ast }/K$ and $K^{\ast }/\varphi$ is used to understand the rescattering and regeneration effect on $K^{\ast }$ production in the hadronic medium. The $K^{\ast }$ $v_2$ measurement using a high statistics Au+Au 200 GeV dataset and nuclear modification factor measurement supports the quark coalescence model of particle production in the intermediate $p_T$ range.

5 pages

References in corpus (4)

• Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
• K(892)* Resonance Production in Au+Au and p+p Collisions at sqrt(sNN) = 200 GeV at RHIC
• Resonance decay effects on anisotropy parameters
• K* production in Heavy Ion Collisions at RHIC

Cited by in corpus (1)

• $K^{\ast }(892{)}^0$ and ${\bar{K}}^{\ast }(892{)}^0$ production in central Pb+Pb, Si+Si, C+C and inelastic p+p collisions at 158$A$~GeV