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

Journal Article · Sun Aug 01 04:00:00 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]

---

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

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIBARYONS
ANTIMATTER
ANTIPARTICLES
B MESONS
B NEUTRAL MESONS
BARYONS
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED BARYONS
DECAY
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
KAONS
KAONS MINUS
LAMBDA C PLUS BARYONS
MASS
MATTER
MESONS
NATIONAL ORGANIZATIONS
NUCLEONS
PARTICLE DECAY
PEP STORAGE RINGS
PIONS
PIONS NEUTRAL
PIONS PLUS
PROTONS
PSEUDOSCALAR MESONS
STANFORD LINEAR ACCELERATOR CENTER
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
US DOE
US ERDA
US ORGANIZATIONS