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  • Strange baryon resonance production in $\sqrt{s_{NN}} = 200$ GeV $p+p$ and $Au+Au$ collisions
    The STAR collaboration; Anderson, B. D; Balewski, J; Bellwied, R; Bhardwaj, S; Bland, L. C; Brandin, A. V; Bravar, A; Bystersky, M; Cadman, R. V; Chajecki, Z; Chattopadhyay, S; Cheng, J; Cherney, M; Chikanian, A; Djawotho, P; Dong, X; Draper, J. E; Efimov, L. G; Engelage, J; Ganti, M. S; Ghosh, P; Haag, B; He, W; Heinz, M; Henry, T. W; Hoffman, A. M; Jacobs, P; Kechechyan, A; Kisiel, A; Klein, S. R; Kouchpil, V; Krueger, K; Kuhn, C; Kumar, A; Kuznetsov, A. A; Lange, S; Lebedev, A; Lee, C-H; LeVine, M. J; Lindenbaum, S. J; Liu, Z; Lynn, D; Mangotra, L. K; Margetis, S; Martin, L; Matis, H. S; Meschanin, A; Millane, J; Miller, M. L; Minaev, N. G; Mishra, D. K; Mohanty, B; Munhoz, M. G; Nandi, B. K; Nelson, J. M; Nogach, L. V; Odyniec, G; Ogawa, A; Okorokov, V; Oldenburg, M; Olson, D; Panebratsev, Y; Panitkin, S. Y; Perevoztchikov, V; Peryt, W; Phatak, S. C; Pluta, J; Potekhin, M; Prindle, D; Putschke, J; Raniwala, S; Razin, S. V; Relyea, D; Roberts, J. B; Romero, J. L; Sakuma, T; Scharenberg, R. P; Shen, W. Q; Shimanskiy, S. S; Sood, G; Sorensen, P; Strikhanov, M; Suaide, A. A. P; Timoshenko, S; Underwood, D. G; Van Buren, G; van der Kolk, N; van Leeuwen, M; Vokal, S; Waggoner, W. T; Wang, F; Wang, Y; Watson, J. W; Yepes, P; Zhan, W; Zhao, Y; Zhong, C; Zoulkarneeva, Y; Zuo, J. X

    04/2006
    Journal Article

    Phys.Rev.Lett.97:132301,2006 We report the measurements of $\Sigma (1385)$ and $\Lambda (1520)$ production in $p+p$ and $Au+Au$ collisions at $\sqrt{s_{NN}} = 200$ GeV from the STAR collaboration. The yields and the $p_{T}$ spectra are presented and discussed in terms of chemical and thermal freeze-out conditions and compared to model predictions. Thermal and microscopic models do not adequately describe the yields of all the resonances produced in central $Au+Au$ collisions. Our results indicate that there may be a time-span between chemical and thermal freeze-out during which elastic hadronic interactions occur.

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