Pentaquark search in the NA49 experiment

D. Barna

Research output: Article

Abstract

The NA49 experiment has found narrow peaks in the Ξ -π-, Ξ-π+ (and antiparticle) spectra at 1862 MeV/c2. These states were identified with the predicted pentaquark cascades. We have searched for other decay channels of the pentaquark cascades. No signal was observed in the AK - and AK0s spectra. Based on systematic inconsistencies in the experimental values of the reported ⊖+, we tried to look for other possible pentaquark states, but observed no signal beyond statistical fluctuations.

Original languageEnglish
JournalCzechoslovak Journal of Physics
Volume55
Issue number1 SUPPL. A
Publication statusPublished - 2005

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cascades
antiparticles
decay

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Pentaquark search in the NA49 experiment. / Barna, D.

In: Czechoslovak Journal of Physics, Vol. 55, No. 1 SUPPL. A, 2005.

Research output: Article

Barna, D 2005, 'Pentaquark search in the NA49 experiment', Czechoslovak Journal of Physics, vol. 55, no. 1 SUPPL. A.
Barna D. Pentaquark search in the NA49 experiment. Czechoslovak Journal of Physics. 2005;55(1 SUPPL. A).
Barna, D. / Pentaquark search in the NA49 experiment. In: Czechoslovak Journal of Physics. 2005 ; Vol. 55, No. 1 SUPPL. A.
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AB - The NA49 experiment has found narrow peaks in the Ξ -π-, Ξ-π+ (and antiparticle) spectra at 1862 MeV/c2. These states were identified with the predicted pentaquark cascades. We have searched for other decay channels of the pentaquark cascades. No signal was observed in the AK - and AK0s spectra. Based on systematic inconsistencies in the experimental values of the reported ⊖+, we tried to look for other possible pentaquark states, but observed no signal beyond statistical fluctuations.

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