Study of B to p Lambdabar gamma, p Lambdabar pi0 and B0 to p Lambdabar pi- High Energy Physics - ExperimentReportar como inadecuado




Study of B to p Lambdabar gamma, p Lambdabar pi0 and B0 to p Lambdabar pi- High Energy Physics - Experiment - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We study the charmless baryonic three-body decays of B mesons: B+ to pLambdabar gamma, B+ to p Lambdabar pi0 and B0 to p Lambdabar pi-. The partialbranching fractions as a function of the baryon-antibaryon mass and the polarangle distributions of the proton in the baryon-antibaryon system arepresented. This study includes the first observation of B+ to p Lambdabar pi0,which is measured to have a branching fraction of 3.00^{+0.61} {-0.53}\pm0.33 times 10^{-6}. We also set upper limits on branching fractions of thetwo-body decays B0 to p Sigmabar^{*-}, B0 to Delta^0 Lambdabar, B+ to pSigmabar^{*0}, and B+ to Delta^+ Lambdabar at the 90% confidence level. Theseresults are obtained from a 414fb^{-1} data sample collected near theUpsilon4S resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.



Autor: M.-Z. Wang, Y.-J. Lee, et al, for the Belle Collaboration

Fuente: https://arxiv.org/







Documentos relacionados