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Search for a narrow charmed baryonic state decaying to D(+/-)p(-/+) in ep collisions at HERA
Journal article   Open access   Peer reviewed

Search for a narrow charmed baryonic state decaying to D(+/-)p(-/+) in ep collisions at HERA

ZEUS Collaboration and J Repond
The European physical journal. C, Particles and fields, Vol.38(1), pp.29-41
12/01/2004
DOI: 10.1140/epjc/s2004-02042-9

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Abstract

A resonance search has been made in the D*(+/-)p(-/+) invariant-mass spectrum with the ZEUS detector at HERA using an integrated luminosity of 126 pb(-1). The decay channels D*+ --> D(0)pi(s)(+) --> (K(-)pi(+))pi(s)(+) and D*+ --> D(0)pi(s)(+) --> (K(-)pi(+)pi(+)pi(-))pi(s)(+) (and the corresponding antiparticle decays) were used to identify D*+/- mesons. No resonance structure was observed in the D(*+/-)p(-/+) mass spectrum from more than 60000 reconstructed D*+/- mesons. The results are not compatible with a report of the H1 Collaboration of a charmed pentaquark, Theta(c)(0).
Physical Sciences Physics Physics, Particles & Fields Science & Technology

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