∑ (1385) results with STAR

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Abstract

This paper introduces the Solenoidal Tracker experiment at the Relativistic Heavy Ion Collider. The corrected p T spectra and the yields of the ∑ (1385)± and their antiparticles in the most central Au + Au and elementary p + p collisions are presented. Comparison of the ∑ (1385)〈pt〉 measurement with the other particles corroborates the fact that the 〈pT〉 behavior for hyperons (mass> 1.2 GeV) is similar in p + p and Au + Au collisions. The ∑(1385)/Λ ratio, along with other resonance-to-stable-particle ratios, suggests that a regeneration mechanism recovers the signal loss due to re-scattering in the final state in Au + Au collisions.

Original languageEnglish (US)
Pages (from-to)9-13
Number of pages5
JournalEuropean Physical Journal C
Volume40
Issue number6
DOIs
StatePublished - May 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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