Journal article
Search for pentaquarks decaying to Ξπ in deep inelastic scattering at HERA
Physics letters. B, Vol.610(3-4), pp.212-224
03/24/2005
DOI: 10.1016/j.physletb.2005.02.016
Abstract
A search for pentaquarks decaying to Ξ−π− (Ξ−π+) and corresponding antiparticles has been performed with the ZEUS detector at HERA. The data sample consists of deep inelastic ep scattering events at centre-of-mass energies of 300 and 318 GeV, and corresponds to 121 pb−1 of integrated luminosity. A clear signal for Ξ0(1530)→Ξ−π+ was observed. However, no signal for any new baryonic state was observed at higher masses in either the Ξ−π− or Ξ−π+ channels. The searches in the antiparticle channels were also negative. Upper limits on the ratio of a possible Ξ3/2−− (Ξ3/20) signal to the Ξ0(1530) signal were set in the mass range 1650–2350 MeV.
Details
- Title: Subtitle
- Search for pentaquarks decaying to Ξπ in deep inelastic scattering at HERA
- Creators
- ZEUS CollaborationJ. Repond (Contributor)
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.610(3-4), pp.212-224
- DOI
- 10.1016/j.physletb.2005.02.016
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier B.V
- Language
- English
- Date published
- 03/24/2005
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627186102771
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