Exotic Particle Searches with STAR at RHIC

STAR Collaboration

doi:10.1556/APH.24.2005.1-4.44

Exotic Particle Searches with STAR at RHIC

STAR Collaboration

Physics and Astronomy

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

We present preliminary results of the STAR experiment at RHIC on exotic particle searches in minimum bias Au+Au collisions at √{sNN} = 200 GeV. We observe a narrow peak at 1734 ± 0.5 ± 5 MeV in the Λ K0 s invariant mass with width consistent with the experimental resolution of about 6 MeV within the errors. The statistical significance can be quantified between 3 and 6 σ depending on cuts and methods. If this peak corresponds to a real particle state it would be a candidate for the N0 or the Ξ0 I = ˝ pentaquark states.

Original language	English
Pages (from-to)	321-328
Number of pages	8
Journal	Acta Physica Hungarica. A. Heavy Ion Physics
Volume	24
Issue number	1-4
DOIs	https://doi.org/10.1556/APH.24.2005.1-4.44
Publication status	Published - 1 Oct 2005
Event	Quark Matter 2005: International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, 18th - Budapest, Hungary Duration: 4 Aug 2005 → 9 Aug 2005

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title = "Exotic Particle Searches with STAR at RHIC",

abstract = "We present preliminary results of the STAR experiment at RHIC on exotic particle searches in minimum bias Au+Au collisions at √{sNN} = 200 GeV. We observe a narrow peak at 1734 ± 0.5 ± 5 MeV in the Λ K0 s invariant mass with width consistent with the experimental resolution of about 6 MeV within the errors. The statistical significance can be quantified between 3 and 6 σ depending on cuts and methods. If this peak corresponds to a real particle state it would be a candidate for the N0 or the Ξ0 I = ˝ pentaquark states.",

author = "S Kabana and John Adams and Lee Barnby and CO Blyth and Leon Gaillard and Peter Jones and John Nelson and {STAR Collaboration}",

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T1 - Exotic Particle Searches with STAR at RHIC

AU - Kabana, S

AU - Adams, John

AU - Barnby, Lee

AU - Blyth, CO

AU - Gaillard, Leon

AU - Jones, Peter

AU - Nelson, John

AU - STAR Collaboration

PY - 2005/10/1

Y1 - 2005/10/1

N2 - We present preliminary results of the STAR experiment at RHIC on exotic particle searches in minimum bias Au+Au collisions at √{sNN} = 200 GeV. We observe a narrow peak at 1734 ± 0.5 ± 5 MeV in the Λ K0 s invariant mass with width consistent with the experimental resolution of about 6 MeV within the errors. The statistical significance can be quantified between 3 and 6 σ depending on cuts and methods. If this peak corresponds to a real particle state it would be a candidate for the N0 or the Ξ0 I = ˝ pentaquark states.

AB - We present preliminary results of the STAR experiment at RHIC on exotic particle searches in minimum bias Au+Au collisions at √{sNN} = 200 GeV. We observe a narrow peak at 1734 ± 0.5 ± 5 MeV in the Λ K0 s invariant mass with width consistent with the experimental resolution of about 6 MeV within the errors. The statistical significance can be quantified between 3 and 6 σ depending on cuts and methods. If this peak corresponds to a real particle state it would be a candidate for the N0 or the Ξ0 I = ˝ pentaquark states.

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U2 - 10.1556/APH.24.2005.1-4.44

DO - 10.1556/APH.24.2005.1-4.44

M3 - Article

SN - 1219-7580

VL - 24

SP - 321

EP - 328

JO - Acta Physica Hungarica. A. Heavy Ion Physics

JF - Acta Physica Hungarica. A. Heavy Ion Physics

IS - 1-4

T2 - Quark Matter 2005: International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, 18th

Y2 - 4 August 2005 through 9 August 2005

ER -

Exotic Particle Searches with STAR at RHIC

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