We present the result of a search for the charmless two-body baryonic decay B-0-->p(p) over bar in a sample of 88 million Y(4S)-->B(B) over bar 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--> <p(p)over bar >)<2.7x10(-7).
Search for the decay B0 -> p p-bar / Bosisio, Luciano; Cossutti, F.; DELLA RICCA, Giuseppe; Lanceri, Livio; Poropat, Paolo; Vitale, Lorenzo. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 69:9(2004), pp. 091503.1-091503.7. [10.1103/PhysRevD.69.091503]
Search for the decay B0 -> p p-bar
BOSISIO, LUCIANO;DELLA RICCA, GIUSEPPE;LANCERI, LIVIO;POROPAT, PAOLO;VITALE, LORENZO
2004-01-01
Abstract
We present the result of a search for the charmless two-body baryonic decay B-0-->p(p) over bar in a sample of 88 million Y(4S)-->B(B) over bar 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-->| File | Dimensione | Formato | |
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PhysRevD.69.091503.pdf
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