# Evidence for the $B^0 \to p\bar{p}K^{*0}$ and $B^+ \to \eta_cK^{*+}$ decays and Study of the Decay Dynamics of B Meson Decays into $p\bar{p}h$ Final States

Abstract : With a sample of 232x10^6 Upsilon(4S)->BBbar events collected with the BaBar detector, we study the decays of B mesons to ppbarh final states, where h=pi+,Ks,K*0 or K*+. We report evidence for the B->ppbarK*0 decay, with a branching fraction (1.5+/-0.5(stat)+/-0.4(syst))x10^-6, and for the B+->eta_cK*+ decay, with the branching fraction of Br(B+->eta_cK*+)xBr(eta_c->ppbar)=(1.57^{+0.56}_{-0.45}(stat)^{+0.46}_{-0.36}(syst))x10^-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+->ppbarpi+, B0->ppbarK*0 and B+->ppbarK*+ modes. No evidence is found for the pentaquark candidate Theta+ in the mass range 1.52 to 1.55 GeV/c^2, decaying into pKs, or the glueball candidate fJ(2220) in the mass range 2.2
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00165239
Contributor : Dominique Girod <>
Submitted on : Wednesday, July 25, 2007 - 1:58:19 PM
Last modification on : Saturday, June 19, 2021 - 4:15:52 AM

### Citation

B. Aubert, M. Bona, D. Boutigny, Y. Karyotakis, J.P. Lees, et al.. Evidence for the $B^0 \to p\bar{p}K^{*0}$ and $B^+ \to \eta_cK^{*+}$ decays and Study of the Decay Dynamics of B Meson Decays into $p\bar{p}h$ Final States. Physical Review D, American Physical Society, 2007, 76, pp.092004. ⟨10.1103/PhysRevD.76.092004⟩. ⟨in2p3-00165239⟩

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