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Lambda(1520) production at SPS and RHIC energies | | C. Markert
; | | Date: |
27 Aug 2003 | | Journal: | J.Phys. G28 (2002) 1753-1759 | | Subject: | nucl-ex | | Affiliation: | the STAR collaboration | | Abstract: | The recent preliminary results from central Au+Au collisions at $sqrt{s_{
m NN}} = $ 130 GeV from the STAR experiment at RHIC are presented and discussed along with the results on the $Lambda$(1520) production in cental Pb+Pb and p+p collisions at $sqrt{s} = $ 17 GeV from the NA49 experiment at the SPS. The $Lambda$(1520) is measured with the invariant mass reconstruction of the decay products in the hadronic channel (K$^{-}$, p). The mean $Lambda$(1520) multiplicity scaled by the number of participants decreases from p+p to Pb+Pb collisions at the same energy of $sqrt{s}$ = 17 GeV. An upper limit estimate of the multiplicity from the first measurement at $sqrt{s_{
m NN}} = $ 130 GeV shows the same trend. Comparisons with model predictions provides an indication of possible medium effects on the resonance and their decay daughters. | | Source: | arXiv, nucl-ex/0308028 | | Services: | Forum | Review | PDF | Favorites | |
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