Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: K* production in Heavy Ion Collisions at RHIC   Study of resonances with their short life-times provides useful tools to
probe the properties of hot and dense matter produced in relativistic heavy ion
collisions. The high density and/or high temperature of the medium can modify
resonance properties such as mass and width. Therefore, measurement of these
properties can reveal important information about the evolution dynamics in
heavy ion collisions. We report the measurements of $K^{*}$ transverse
momentum($p_T$) spectra at mid-rapidity via its hadronic decay channel up to
intermediate $p_{T}$ of 2.9 GeV/c using the STAR detector in Au+Au and Cu+Cu
collisions at $\sqrt{s_{\mathrm{NN}}}$= 62.4 GeV and 200 GeV. These results are
compared to previously reported $K^{*}$ results from Au+Au collisions at RHIC.
Integrated yield ratios of $K^{*}/K$ and $K^{*}/\phi$ are used to understand
the rescattering and regeneration effects on $K^{*}$ production.

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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: cs
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The categories of this paper are: stat
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The categories of this paper are: math
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The categories of this paper are: hep-lat
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The categories of this paper are: mtrl-th