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EnglishA 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).
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).
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| Titolo: | Search for a narrow charmed baryonic state decaying to D*(+/-)p(-/+) in ep collisions at HERA |
| Autori: | |
| Data di pubblicazione: | 2004 |
| Rivista: | |
| 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). |
| Handle: | http://hdl.handle.net/20.500.11770/126839 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/20.500.11770/126839
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