2004
DOI: 10.1103/physrevd.69.091503
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Search for the decayB0pp¯

Abstract: We present the result of a search for the charmless two-body baryonic decay B 0 →pp ¯in a sample of 88 million ⌼(4S)→BB ¯decays collected by the BABAR detector at the SLAC PEP-II asymmetric-energy B Factory. We use Cherenkov radiation to identify protons cleanly, and determine the signal yield with a maximum-likelihood fit technique using kinematic and topological information. We find no evidence for a signal and place a 90% confidence-level upper limit of B(B 0 →pp ¯)Ͻ2.7ϫ10 Ϫ7 .

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Cited by 33 publications
(17 citation statements)
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“…In the framework of perturbation theory, the origin of this strong coupling is the growth of the propagator and the wave functions of the longitudinal components of massive graviton with energy, much in common with the case of massive non-Abelian vector field. Consider the amplitude of the four-graviton scattering represented by the diagrams of The second diagram is of the same order, since two leading contributions in the propagator cancel out in the on-shell amplitude [63]. Thus, the scattering amplitude indeed becomes large at energies of order (53).…”
Section: Strong Couplingmentioning
confidence: 99%
“…In the framework of perturbation theory, the origin of this strong coupling is the growth of the propagator and the wave functions of the longitudinal components of massive graviton with energy, much in common with the case of massive non-Abelian vector field. Consider the amplitude of the four-graviton scattering represented by the diagrams of The second diagram is of the same order, since two leading contributions in the propagator cancel out in the on-shell amplitude [63]. Thus, the scattering amplitude indeed becomes large at energies of order (53).…”
Section: Strong Couplingmentioning
confidence: 99%
“…Soon after that, the CLEO experiment confirmed the existence of D * s0 (2317) + along with the first observation of D s1 (2460) + decaying into D * + s π 0 [34]. The existence of D s1 (2460) + has been confirmed by Belle [35] and BaBar [36]. Belle also discovered the D s1 (2460) + decay modes of D + s γ and D + s π + π − [35].…”
Section: Spectroscopy Of D S Mesonsmentioning
confidence: 86%
“…Another open question left for future research is to understand how the strong coupling of LV massive gravity manifests itself at the level of Feynman diagrams and how it is canceled by the new degrees of freedom appearing in our model (see [32,61] for related works in the Lorentz invariant context). This may shed light on possible generalizations of the mechanism proposed in this paper to other IR modifications of gravity, such as multi-metric theories and the Lorentz invariant setup of [7].…”
Section: Summary and Discussionmentioning
confidence: 99%
“…which precisely compensates (61). The expression (63) corresponds to the spatially non-local counterterms discussed above.…”
Section: Quantum Treatment Of Instantaneous Modesmentioning
confidence: 99%