Search for the charmed pentaquark candidate Theta(c)(3100)0 in e+ e- annihilations at s**(1/2) = 10.58-GeV
Collaboration
8 pages
Published in:
- Phys.Rev.D 73 (2006) 091101
e-Print:
- hep-ex/0604006 [hep-ex]
Report number:
- SLAC-PUB-11779,
- BABAR-PUB-06-007
Experiments:
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Abstract:
We search for the charmed pentaquark candidate reported by the H1 collaboration, the Theta_c(3100)^0, in e^+e^- interactions at a center-of-mass (c.m.) energy of 10.58 GeV, using 124~fb-1 of data recorded with the BaBar detector at the PEP-II e^+e^- facility at SLAC. We find no evidence for such a state in the same pD^{*-} decay mode reported by H1, and we set limits on its production cross section times branching fraction into pD^{*-} as a function of c.m. momentum. The corresponding limit on its total rate per e^+e^- -> qqbar event, times branching fraction, is about three orders of magnitude lower than rates measured for the charmed Lambda_c and Sigma_c baryons in such events.Note:
- 7 pages, 4 postscript figures, published version -- small changes Report-no: SLAC-PUB-11779
- 12.15.Hh
- 11.30.Er
- 13.25.Hw
- electron positron: colliding beams
- electron positron: annihilation
- pentaquark: search for
- pentaquark: charm
- postulated particle: Theta/c(3100)
- Theta/c(3100): hadronic decay
- mass spectrum: (D*(2010) p)
References(20)
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