Search for Strange-Pentaquark Production in e⁺e⁻ Annihilation at √s = 10.58 GeV

B Aubert; Matthew Barrett; Kelly Ford; Theresa Harrison; Alistair Hart; Christopher Hawkes; Sian Morgan; Alan Watson

doi:10.1103/PhysRevLett.95.042002

Search for Strange-Pentaquark Production in e⁺e⁻ Annihilation at √s = 10.58 GeV

B Aubert, Matthew Barrett, Kelly Ford, Theresa Harrison, Alistair Hart, Christopher Hawkes, Sian Morgan, Alan Watson

Physics and Astronomy

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29 Citations (Scopus)

Abstract

We search for strange-pentaquark states that have been previously reported by other experiments--the Theta (1540)(+), Xi(5)(1860)(--), and Xi(5)(1860)(0)--in 123 fb(-1) of data recorded with the BABAR detector at the PEP-II e(+)e(-) storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Theta(1540)(+) and Xi(5)(1860)(--) pentaquarks produced per e(+)e(-) annihilation into qq and Gamma(4S) decay. For qq events the Theta(1540)(+) [Xi(5)(1860)(--)] limit is about 8 [4] times lower than the rates measured for ordinary baryons of similar mass.

Original language	English
Pages (from-to)	042002
Number of pages	1
Journal	Physical Review Letters
Volume	95
DOIs	https://doi.org/10.1103/PhysRevLett.95.042002
Publication status	Published - 1 Jan 2005

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10.1103/PhysRevLett.95.042002

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title = "Search for Strange-Pentaquark Production in e⁺e⁻ Annihilation at √s = 10.58 GeV",

abstract = "We search for strange-pentaquark states that have been previously reported by other experiments--the Theta (1540)(+), Xi(5)(1860)(--), and Xi(5)(1860)(0)--in 123 fb(-1) of data recorded with the BABAR detector at the PEP-II e(+)e(-) storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Theta(1540)(+) and Xi(5)(1860)(--) pentaquarks produced per e(+)e(-) annihilation into qq and Gamma(4S) decay. For qq events the Theta(1540)(+) [Xi(5)(1860)(--)] limit is about 8 [4] times lower than the rates measured for ordinary baryons of similar mass.",

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T1 - Search for Strange-Pentaquark Production in e⁺e⁻ Annihilation at √s = 10.58 GeV

AU - Aubert, B

AU - Barrett, Matthew

AU - Ford, Kelly

AU - Harrison, Theresa

AU - Hart, Alistair

AU - Hawkes, Christopher

AU - Morgan, Sian

AU - Watson, Alan

PY - 2005/1/1

Y1 - 2005/1/1

N2 - We search for strange-pentaquark states that have been previously reported by other experiments--the Theta (1540)(+), Xi(5)(1860)(--), and Xi(5)(1860)(0)--in 123 fb(-1) of data recorded with the BABAR detector at the PEP-II e(+)e(-) storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Theta(1540)(+) and Xi(5)(1860)(--) pentaquarks produced per e(+)e(-) annihilation into qq and Gamma(4S) decay. For qq events the Theta(1540)(+) [Xi(5)(1860)(--)] limit is about 8 [4] times lower than the rates measured for ordinary baryons of similar mass.

AB - We search for strange-pentaquark states that have been previously reported by other experiments--the Theta (1540)(+), Xi(5)(1860)(--), and Xi(5)(1860)(0)--in 123 fb(-1) of data recorded with the BABAR detector at the PEP-II e(+)e(-) storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Theta(1540)(+) and Xi(5)(1860)(--) pentaquarks produced per e(+)e(-) annihilation into qq and Gamma(4S) decay. For qq events the Theta(1540)(+) [Xi(5)(1860)(--)] limit is about 8 [4] times lower than the rates measured for ordinary baryons of similar mass.

U2 - 10.1103/PhysRevLett.95.042002

DO - 10.1103/PhysRevLett.95.042002

M3 - Article

C2 - 16090801

SN - 0031-9007

VL - 95

SP - 042002

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Search for Strange-Pentaquark Production in e⁺e⁻ Annihilation at √s = 10.58 GeV

Abstract

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