Study of Narrow Baryonic Pentaquark Candidates with the Zeus Detector at Hera∗
نویسنده
چکیده
The three pentaquark candidates Θ(1530), Ξ(1862) and Θc(3100) have been studied in ep collisions at a centre-of-mass energy √ s = 300 − 318 GeV using the full luminosity of the HERA-I data. Searches for narrow baryonic states in the decay channels K S p, Kp, Ξ−π±, Ξ̄+π± and D∗±p∓ are reported. The results support the existence of a narrow resonance decaying into K S p and K S p̄, consistent with the Θ(1530) state. No signals are seen in the Kp, Ξ−π±, Ξ̄+π± and D∗±p∓ channels.
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