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Title: Measurements of neutral B decay branching fractions to K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} final states and the charge asymmetry of B{sup 0}{yields}K*{sup +}{pi}{sup -}

Abstract

We analyze the decay B{sup 0}{yields}K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} using a sample of 232x10{sup 6} {upsilon}(4S){yields}BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. A maximum likelihood fit finds the following branching fractions: B(B{sup 0}{yields}K{sup 0}{pi}{sup +}{pi}{sup -})=(43.0{+-}2.3{+-}2.3)x10{sup -6}, B(B{sup 0}{yields}f{sub 0}({yields}{pi}{sup +}{pi}{sup -})K{sup 0})=(5.5{+-}0.7{+-}0.5{+-}0.3)x10{sup -6} and B(B{sup 0}{yields}K*{sup +}{pi}{sup -})=(11.0{+-}1.5{+-}0.5{+-}0.5)x10{sup -6}. For these results, the first uncertainty is statistical, the second is systematic, and the third (if present) is due to the effect of interference from other resonances. We also measure the CP-violating charge asymmetry in the decay B{sup 0}{yields}K*{sup +}{pi}{sup -}, A{sub K*{pi}}=-0.11{+-}0.14{+-}0.05.

Authors:
; ; ; ; ; ; ; ;  [1];  [2]; ; ;  [3]; ; ; ; ;  [4]; ;  [5]
  1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
  2. IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
  3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
  4. Institute of High Energy Physics, Beijing 100039 (China)
  5. Inst. of Physics, University of Bergen, N-5007 Bergen (Norway) (and others)
Publication Date:
OSTI Identifier:
20776628
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.73.031101; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; B NEUTRAL MESONS; BRANCHING RATIO; CP INVARIANCE; ELECTRON-POSITRON INTERACTIONS; HADRONIC PARTICLE DECAY; INTERFERENCE; KAONS NEUTRAL SHORT-LIVED; MAXIMUM-LIKELIHOOD FIT; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PEP STORAGE RINGS; PIONS MINUS; PIONS PLUS; STANFORD LINEAR ACCELERATOR CENTER; UPSILON-10580 MESONS

Citation Formats

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Pappagallo, M., Pompili, A., Chen, J.C., Qi, N.D., Rong, G., Wang, P., Zhu, Y.S., Eigen, G., and Ofte, I.. Measurements of neutral B decay branching fractions to K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} final states and the charge asymmetry of B{sup 0}{yields}K*{sup +}{pi}{sup -}. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.73.031101.
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Pappagallo, M., Pompili, A., Chen, J.C., Qi, N.D., Rong, G., Wang, P., Zhu, Y.S., Eigen, G., & Ofte, I.. Measurements of neutral B decay branching fractions to K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} final states and the charge asymmetry of B{sup 0}{yields}K*{sup +}{pi}{sup -}. United States. doi:10.1103/PhysRevD.73.031101.
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.P., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Pappagallo, M., Pompili, A., Chen, J.C., Qi, N.D., Rong, G., Wang, P., Zhu, Y.S., Eigen, G., and Ofte, I.. Wed . "Measurements of neutral B decay branching fractions to K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} final states and the charge asymmetry of B{sup 0}{yields}K*{sup +}{pi}{sup -}". United States. doi:10.1103/PhysRevD.73.031101.
@article{osti_20776628,
title = {Measurements of neutral B decay branching fractions to K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} final states and the charge asymmetry of B{sup 0}{yields}K*{sup +}{pi}{sup -}},
author = {Aubert, B. and Barate, R. and Boutigny, D. and Couderc, F. and Karyotakis, Y. and Lees, J.P. and Poireau, V. and Tisserand, V. and Zghiche, A. and Grauges, E. and Palano, A. and Pappagallo, M. and Pompili, A. and Chen, J.C. and Qi, N.D. and Rong, G. and Wang, P. and Zhu, Y.S. and Eigen, G. and Ofte, I.},
abstractNote = {We analyze the decay B{sup 0}{yields}K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} using a sample of 232x10{sup 6} {upsilon}(4S){yields}BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. A maximum likelihood fit finds the following branching fractions: B(B{sup 0}{yields}K{sup 0}{pi}{sup +}{pi}{sup -})=(43.0{+-}2.3{+-}2.3)x10{sup -6}, B(B{sup 0}{yields}f{sub 0}({yields}{pi}{sup +}{pi}{sup -})K{sup 0})=(5.5{+-}0.7{+-}0.5{+-}0.3)x10{sup -6} and B(B{sup 0}{yields}K*{sup +}{pi}{sup -})=(11.0{+-}1.5{+-}0.5{+-}0.5)x10{sup -6}. For these results, the first uncertainty is statistical, the second is systematic, and the third (if present) is due to the effect of interference from other resonances. We also measure the CP-violating charge asymmetry in the decay B{sup 0}{yields}K*{sup +}{pi}{sup -}, A{sub K*{pi}}=-0.11{+-}0.14{+-}0.05.},
doi = {10.1103/PhysRevD.73.031101},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 73,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2006},
month = {Wed Feb 01 00:00:00 EST 2006}
}