298 articles – 2276 Notices  [english version]
 HAL : in2p3-00192240, version 1
 arXiv : 0704.3594
 European Physical Journal C 52 (2007) 507-514
 Search for Baryonic Resonances Decaying to $\Xi \pi$ in Deep-Inelastic Scattering at HERA
 H1 Collaboration(s)
 (2007)
 A search for narrow baryonic resonances decaying into Xi- pi- or Xi- pi+ and their antiparticles is carried out with the H1 detector using deep inelastic scattering events at HERA in the range of negative photon four-momentum transfer squared 2 < Q^2 < 100 GeV^2. No signal is observed for a new baryonic state in the mass range 1600 - 2300 MeV in either the doubly charged or the neutral decay channels. The known baryon Xi0 is observed through its decay mode into Xi- pi+. Upper limits are given on the ratio of the production rates of new baryonic states, such as the hypothetical pentaquark states Xi^{--}_{5q} or Xi^{0}_{5q}, relative to the Xi0 baryon state.
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
 Lien vers le texte intégral : http://fr.arXiv.org/abs/0704.3594
 in2p3-00192240, version 1 http://hal.in2p3.fr/in2p3-00192240 oai:hal.in2p3.fr:in2p3-00192240 Contributeur : Françoise Marechal <> Soumis le : Mardi 27 Novembre 2007, 12:06:20 Dernière modification le : Mardi 27 Novembre 2007, 15:49:01