R Witt (for the STAR Collaboration) 2007 J. Phys. G: Nucl. Part. Phys. 34 S921 doi:10.1088/0954-3899/34/8/S126
Ξ0(1530) production in heavy-ion collisions and its implications for Δttherm-chem
R Witt (for the STAR Collaboration)
Show affiliationsWe present the first measurements of the transverse momentum spectra and mid-rapidity yields of the Ξ0(1530) multi-strange baryon resonance, from 
collisions at RHIC from the STAR experiment. Ratios of the mid-rapidity yield of this long-lived (cτ = 21 fm) resonance to its non-resonance partner (the Ξ baryon) are compared to predictions from thermal models and to the corresponding ratios for other resonances previously reported by STAR. Conclusions will be drawn about the implication of these measurements for the time between chemical and thermal freeze-out (Δttherm-chem) and any observed deviations from the expected mass and width will be discussed.
- PACS
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25.75.Dw Particle and resonance production
27.80.+w 190(less-than-or-equal-to)A(less-than-or-equal-to)219
- Subjects
- Dates
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Issue 8 (August 2007)
Received 25 January 2007
Published 17 July 2007
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Ξ0(1530) production in heavy-ion collisions and its implications for Δttherm-chem
R Witt (for the STAR Collaboration) 2007 J. Phys. G: Nucl. Part. Phys. 34 S921
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