Article
Search for Pentaquarks Decaying to Ξπ in Deep Inelastic Scattering at HERA
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Document Type
Article
Publication Date
3-24-2005
Disciplines
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. © 2005 Elsevier B.V. All rights reserved.
DOI
https://doi.org/10.1016/j.physletb.2005.02.016
First Department
Physics
Acknowledgements
Accepted version retrieved April 9, 2021 from https://arxiv.org/pdf/hep-ex/0501069.pdf
Citation Information
S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi, et al.. "Search for Pentaquarks Decaying to Ξπ in Deep Inelastic Scattering at HERA" Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics Vol. 610 Iss. 3-4 (2005) p. 212 - 224 Available at: http://works.bepress.com/margarita_mattingly/191/