par Aktas, Adil;Collard, Caroline ;Favart, Laurent ;Janssen, Xavier ;Marage, Pierre ; [et al.]
Référence Physics letters. Section B, 588, 1-2, page (17-28)
Publication Publié, 2004
Article révisé par les pairs
Résumé : A narrow resonance in D*-p and D*+p̄ invariant mass combinations is observed in inelastic electron-proton collisions at centre-of-mass energies of 300 GeV and 320 GeV at HERA. The resonance has a mass of 3099±3(stat.)±5(syst.) MeV and a measured Gaussian width of 12±3(stat.) MeV, compatible with the experimental resolution. The resonance is interpreted as an anti-charmed baryon with a minimal constituent quark composition of uuddc̄, together with the charge conjugate. © 2004 Elsevier B.V. All rights reserved.