Measurements of the decays B{sup 0}{yields}D{sup 0}pp, B{sup 0}{yields}D*{sup 0}pp, B{sup 0}{yields}D{sup -}pp{pi}{sup +}, and B{sup 0}{yields}D*{sup -}pp{pi}{sup +}

Journal Article · Fri Sep 01 04:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.051101· OSTI ID:20871068

Aubert, B; Barate, R; Bona, M; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, J P; Poireau, V; Tisserand, V; Zghiche, A ^[1]; Grauges, E ^[2]; Palano, A; Pappagallo, M ^[3]; Chen, J C; Qi, N D; Rong, G; Wang, P; Zhu, Y S ^[4]; Eigen, G; Ofte, I ^[5]

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1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
2. Universitat de Barcelona Fac. Fisica. Dept. ECM Avda Diagonal 647, 6a planta E-08028 Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
4. Institute of High Energy Physics, Beijing 100039 (China)
5. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)

We present measurements of branching fractions of B{sup 0} decays to multibody final states containing protons, based on 232x10{sup 6} {upsilon}(4S){yields}BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We measure the branching fractions B(B{sup 0}{yields}D{sup 0}pp)=(1.13{+-}0.06{+-}0.08)x10{sup -4}, B(B{sup 0}{yields}D*{sup 0}pp)=(1.01{+-}0.10{+-}0.09)x10{sup -4}, B(B{sup 0}{yields}D{sup -}pp{pi}{sup +})=(3.38{+-}0.14{+-}0.29)x10{sup -4}, and B(B{sup 0}{yields}D*{sup -}pp{pi}{sup +})=(4.81{+-}0.22{+-}0.44)x10{sup -4} where the first error is statistical and the second systematic. We present a search for the charmed pentaquark state, {theta}{sub c}(3100) observed by H1 and put limits on the branching fraction B(B{sup 0}{yields}{theta}{sub c}p{pi}{sup +})xB({theta}{sub c}{yields}D*{sup -}p)<14x10{sup -6} and B(B{sup 0}{yields}{theta}{sub c}p{pi}{sup +})xB({theta}{sub c}{yields}D{sup -}p)<9x10{sup -6}. Upon investigation of the decay structure of the above four B{sup 0} decay modes, we see an enhancement at low pp mass and deviations from phase-space in the Dp and Dp invariant mass spectra.

• OSTI ID: 20871068
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
BRANCHING RATIO
D MINUS MESONS
D NEUTRAL MESONS
D*-2010 MESONS
HADRONIC PARTICLE DECAY
MASS SPECTRA
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PEP STORAGE RINGS
PHASE SPACE
PIONS PLUS
PROTONS
RESONANCE PARTICLES
REST MASS
UPSILON-10580 MESONS