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Title: MEASUREMENT OF THE BRANCHING FRACTIONS FOR THE DECAYS B{sup 0}-->D*{sup -} p{bar p}{pi}{sup +}, B{sup 0}-->D{sup -}p{bar p}{pi}{sup +}, B0-->D*{sup 0} p{bar p} AND B{sup 0}-->D{sup 0} p{bar p}

Abstract

The B{sup 0} meson decay modes B{sup 0} --> D*{sup -}p{bar p}{pi}{sup +}, D{sup -}p{bar p}{sup +}, {bar D}*{sup 0}p{bar p}, and B{sup 0} --> {bar D}{sup 0}p{bar p} are studied in a sample of 124 x 10{sup 6} B{bar B} pairs collected with the BABAR detector at the PEP-II collider. The decay of B{sup 0} --> D{sup -}p{bar p}{pi}{sup +} is observed for the first time, with a measured branching fraction B(B{sup 0} --> D{sup -}p{bar p}{pi}{sup +}) = (3.80 {+-} 0.35 {+-} 0.46) x 10{sup -4}. The following branching fractions are also determined: B(B{sup 0} --> D*{sup -}p{bar p}{pi}{sup +}) = (5.61 {+-} 0.59 {+-} 0.73) x 10{sup -4}, B(B{sup 0} --> {bar D}*{sup 0} p{bar p}) = (0.67 {+-} 0.21 {+-} 0.09) x 10{sup -4}, and B(B{sup 0} --> {bar D}{sup 0}p{bar p}) = (1.24 {+-} 0.14 {+-} 0.12) x 10{sup -4}. In each decay mode the invariant mass spectra of the charmed mesons and the baryons are compared with a pure phase-space hypothesis in order to gain insight into the B meson decay dynamics. In particular, the Dalitz plots of {bar D}*{sup 0}p versus {bar D}*{sup 0}{bar p} for B{sup 0} --> {bar D}*{sup 0}p{bar p}more » and of {bar D}{sup 0}p versus {bar D}{sup 0}{bar p} for B{sup 0} --> {bar D}{sup 0}p{bar p} are presented. All results are preliminary.« less

Authors:
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
829766
Report Number(s):
SLAC-PUB-10610
TRN: US0405856
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 11 Aug 2004
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B MESONS; BARYONS; CHARMED MESONS; DALITZ PLOT; DECAY; HYPOTHESIS; MASS SPECTRA; MESONS; PHASE SPACE

Citation Formats

Aubert, Aubert. MEASUREMENT OF THE BRANCHING FRACTIONS FOR THE DECAYS B{sup 0}-->D*{sup -} p{bar p}{pi}{sup +}, B{sup 0}-->D{sup -}p{bar p}{pi}{sup +}, B0-->D*{sup 0} p{bar p} AND B{sup 0}-->D{sup 0} p{bar p}. United States: N. p., 2004. Web. doi:10.2172/829766.
Aubert, Aubert. MEASUREMENT OF THE BRANCHING FRACTIONS FOR THE DECAYS B{sup 0}-->D*{sup -} p{bar p}{pi}{sup +}, B{sup 0}-->D{sup -}p{bar p}{pi}{sup +}, B0-->D*{sup 0} p{bar p} AND B{sup 0}-->D{sup 0} p{bar p}. United States. https://doi.org/10.2172/829766
Aubert, Aubert. 2004. "MEASUREMENT OF THE BRANCHING FRACTIONS FOR THE DECAYS B{sup 0}-->D*{sup -} p{bar p}{pi}{sup +}, B{sup 0}-->D{sup -}p{bar p}{pi}{sup +}, B0-->D*{sup 0} p{bar p} AND B{sup 0}-->D{sup 0} p{bar p}". United States. https://doi.org/10.2172/829766. https://www.osti.gov/servlets/purl/829766.
@article{osti_829766,
title = {MEASUREMENT OF THE BRANCHING FRACTIONS FOR THE DECAYS B{sup 0}-->D*{sup -} p{bar p}{pi}{sup +}, B{sup 0}-->D{sup -}p{bar p}{pi}{sup +}, B0-->D*{sup 0} p{bar p} AND B{sup 0}-->D{sup 0} p{bar p}},
author = {Aubert, Aubert},
abstractNote = {The B{sup 0} meson decay modes B{sup 0} --> D*{sup -}p{bar p}{pi}{sup +}, D{sup -}p{bar p}{sup +}, {bar D}*{sup 0}p{bar p}, and B{sup 0} --> {bar D}{sup 0}p{bar p} are studied in a sample of 124 x 10{sup 6} B{bar B} pairs collected with the BABAR detector at the PEP-II collider. The decay of B{sup 0} --> D{sup -}p{bar p}{pi}{sup +} is observed for the first time, with a measured branching fraction B(B{sup 0} --> D{sup -}p{bar p}{pi}{sup +}) = (3.80 {+-} 0.35 {+-} 0.46) x 10{sup -4}. The following branching fractions are also determined: B(B{sup 0} --> D*{sup -}p{bar p}{pi}{sup +}) = (5.61 {+-} 0.59 {+-} 0.73) x 10{sup -4}, B(B{sup 0} --> {bar D}*{sup 0} p{bar p}) = (0.67 {+-} 0.21 {+-} 0.09) x 10{sup -4}, and B(B{sup 0} --> {bar D}{sup 0}p{bar p}) = (1.24 {+-} 0.14 {+-} 0.12) x 10{sup -4}. In each decay mode the invariant mass spectra of the charmed mesons and the baryons are compared with a pure phase-space hypothesis in order to gain insight into the B meson decay dynamics. In particular, the Dalitz plots of {bar D}*{sup 0}p versus {bar D}*{sup 0}{bar p} for B{sup 0} --> {bar D}*{sup 0}p{bar p} and of {bar D}{sup 0}p versus {bar D}{sup 0}{bar p} for B{sup 0} --> {bar D}{sup 0}p{bar p} are presented. All results are preliminary.},
doi = {10.2172/829766},
url = {https://www.osti.gov/biblio/829766}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Aug 11 00:00:00 EDT 2004},
month = {Wed Aug 11 00:00:00 EDT 2004}
}