Observation of the decay B{sup 0}{yields}{Lambda}{sub c}{sup +}p{pi}{sup 0}

Journal Article · Sun Aug 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.031102· OSTI ID:21432823

Aubert, B; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Garra Tico, J; Grauges, E ^[2]; Martinelli, M; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Battaglia, M; Brown, D N; Hooberman, B; Kerth, L T; Kolomensky, Yu G ^[5]

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1. Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Universite de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. INFN Sezione di Bari, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

In a sample of 467x10{sup 6} BB pairs collected with the BABAR detector at the PEP-II collider at SLAC we have observed the decay B{sup 0}{yields}{Lambda}{sub c}{sup +}p{pi}{sup 0} and measured the branching fraction to be (1.94{+-}0.17{+-}0.14{+-}0.50)x10{sup -4}, where the uncertainties are statistical, systematic, and the uncertainty on the {Lambda}{sub c}{sup +}{yields}pK{sup -}{pi}{sup +} branching fraction, respectively. We determine an upper limit of 1.5x10{sup -6} at 90% C.L. for the product branching fraction B(B{sup 0}{yields}{Sigma}{sub c}{sup +}(2455)p)xB({Lambda}{sub c}{sup +}{yields}pK{sup -}{pi}{sup +}). Furthermore, we observe an enhancement at the threshold of the invariant mass of the baryon-antibaryon pair.

• OSTI ID: 21432823
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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