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Resonance Studies at STAR | | Zhangbu Xu
; the STAR Collaboration
; | | Date: |
31 Mar 2001 | | Journal: | Nucl.Phys. A698 (2002) 607-610 | | Subject: | nucl-ex | | Abstract: | We report on the observed signals of ${K^{star0}(892)} opi K$ and $phi(1020) o K^{+}K^{-}$ using the mixed-event method with powerful statistics from the large acceptance and highly efficient STAR TPC. Preliminary results from the first observation of such states from the year-one STAR data in $sqrt{s_{NN}}=130$ GeV Au-Au collisions are presented. The $K^{star0}/h^{-}$ ratios with an assumed $K^{star0}$ $p_{T}$ inverse slope of 300MeV are compatible with that from pp at ISR. For 14% central Au+Au collisions, we observe $K^{star0}/h^{-}=0.060pm0.007(stat)$ and $ar{K^{star0}}/h^{-}=0.058pm0.007(stat)$. We show that $ar{Lambda}/Lambda=0.77pm0.07(stat)$ from this method is consistent with the measurement via decay topology. | | Source: | arXiv, nucl-ex/0104001 | | Services: | Forum | Review | PDF | Favorites | |
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