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Title: Penguin operators in nonresonant B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},K{sup 0}) decays

Abstract

We investigate the contributions coming from the penguin operators in the nonresonant B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},K{sup 0}) decays. The effective Wilson coefficients of the strong penguin operators O{sub 4} and O{sub 6} are found to be relatively larger than those for other penguin operators. We calculate the contributions arising from the O{sub 4} and O{sub 6} operators in the nonresonant decays B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},{bar K}{sup 0}) using a model combining heavy quark symmetry and the chiral symmetry, developed previously. We find that the CKM-forbidden nonresonant B{sup {minus}}{r_arrow}K{sup 0}{bar K}{sup 0}{pi}{sup {minus}} decay occurs through the strong penguin operators. These penguin contributions affect the branching ratios for B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}}) by only a few percent. The branching ratio for B{sup {minus}}{r_arrow}K{sup 0}{bar K}{sup 0}{pi}{sup {minus}} is estimated to be of the order 10{sup {minus}6}. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
 [1];  [2];  [3]
  1. J. Stefan Institute, Jamova 39, P.O. Box 3000, 1001 Ljubljana (Slovenia)|[Department of Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana (Slovenia)
  2. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)
  3. Centre de Physique Theorique, Centre National de la Recherche Scientifique, UMR 7644, Ecole Polytechnique, F-91128 Palaiseau Cedex (France)
Publication Date:
OSTI Identifier:
365989
Resource Type:
Journal Article
Journal Name:
Physical Review, D
Additional Journal Information:
Journal Volume: 60; Journal Issue: 5; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; MATHEMATICAL OPERATORS; B MESONS; PIONS MINUS; KAONS MINUS; KAONS NEUTRAL; QUARKS; BRANCHING RATIO; HADRONIC PARTICLE DECAY; CHIRAL SYMMETRY

Citation Formats

Fajfer, S., Oakes, R.J., and Pham, T.N. Penguin operators in nonresonant B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},K{sup 0}) decays. United States: N. p., 1999. Web. doi:10.1103/PhysRevD.60.054029.
Fajfer, S., Oakes, R.J., & Pham, T.N. Penguin operators in nonresonant B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},K{sup 0}) decays. United States. doi:10.1103/PhysRevD.60.054029.
Fajfer, S., Oakes, R.J., and Pham, T.N. Wed . "Penguin operators in nonresonant B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},K{sup 0}) decays". United States. doi:10.1103/PhysRevD.60.054029.
@article{osti_365989,
title = {Penguin operators in nonresonant B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},K{sup 0}) decays},
author = {Fajfer, S. and Oakes, R.J. and Pham, T.N.},
abstractNote = {We investigate the contributions coming from the penguin operators in the nonresonant B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},K{sup 0}) decays. The effective Wilson coefficients of the strong penguin operators O{sub 4} and O{sub 6} are found to be relatively larger than those for other penguin operators. We calculate the contributions arising from the O{sub 4} and O{sub 6} operators in the nonresonant decays B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}},{bar K}{sup 0}) using a model combining heavy quark symmetry and the chiral symmetry, developed previously. We find that the CKM-forbidden nonresonant B{sup {minus}}{r_arrow}K{sup 0}{bar K}{sup 0}{pi}{sup {minus}} decay occurs through the strong penguin operators. These penguin contributions affect the branching ratios for B{sup {minus}}{r_arrow}M{bar M}{pi}{sup {minus}}(M={pi}{sup {minus}},K{sup {minus}}) by only a few percent. The branching ratio for B{sup {minus}}{r_arrow}K{sup 0}{bar K}{sup 0}{pi}{sup {minus}} is estimated to be of the order 10{sup {minus}6}. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevD.60.054029},
journal = {Physical Review, D},
number = 5,
volume = 60,
place = {United States},
year = {1999},
month = {9}
}