Evidence for the B{sup 0}{yields}ppK*{sup 0} and B{sup +}{yields}{eta}{sub c}K*{sup +} decays and study of the decay dynamics of B meson decays into pph final states

Journal Article · Thu Nov 01 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.092004· OSTI ID:21032537

Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Garra Tico, J; Grauges, E ^[2]; Lopez, L; Palano, A ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Button-Shafer, J ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica, and INFN, 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)

With a sample of 232x10{sup 6} {upsilon}(4S){yields}BB events collected with the BABAR detector, we study the decays of B mesons to pph final states, where h={pi}{sup +}, K{sub S}{sup 0}, K*{sup 0}, or K*{sup +}. We report evidence for the B{sup 0}{yields}ppK*{sup 0} decay, with a branching fraction (1.47{+-}0.45(stat){+-}0.40(syst))x10{sup -6}, and for the B{sup +}{yields}{eta}{sub c}K*{sup +} decay, with the branching fraction of B(B{sup +}{yields}{eta}{sub c}K*{sup +})xB({eta}{sub c}{yields}pp)=(1.57{sub -0.45}{sup +0.56}(stat){sub -0.3}={sub 6}{sup +0.46}(syst))x10{sup -6}, and provide improved measurements of the branching fractions of the other modes of this type. We also report the measurements of the charge asymmetry consistent with zero in the B{sup +}{yields}pp{pi}{sup +}, B{sup 0}{yields}ppK*{sup 0}, and B{sup +}{yields}ppK*{sup +} modes. No evidence is found for the pentaquark candidate {theta}{sup +} in the mass range 1.52 to 1.55 GeV/c{sup 2}, decaying into pK{sub S}{sup 0}, or the glueball candidate f{sub J}(2220) in the mass range 2.2<m{sub pp}<2.4 GeV/c{sup 2}, and branching fraction limits are established for both at the 10{sup -7} level.

• OSTI ID: 21032537
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
BORON IONS
BRANCHING RATIO
ELECTRON-POSITRON INTERACTIONS
ETA C-2980 MESONS
GEV RANGE
GLUEBALLS
K*-892 MESONS
MULTIPARTICLE SPECTROMETERS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PEP STORAGE RINGS
PIONS PLUS
QUANTUM CHROMODYNAMICS
UPSILON-10580 MESONS