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Title: Enhancement of Hadronic b Quark Decays

Abstract

A class of previously unknown strong-interaction corrections is found to enhance the rate of nonleptonic decays of the b quark by 5%-8%. This effect decreases the predicted fraction of semileptonic decays and brings it into fair agreement with experimental results. As well as solving a long-standing puzzle of measurements disagreeing with the standard model prediction, our work suggests a way for future precise studies of nonleptonic b quark decays and their application to searching for 'new physics'.

Authors:
 [1];  [2];  [3]
  1. Department of Physics, University of Alberta Edmonton, AB T6G 2J1, Canada and Institute of Nuclear Physics, Academy of Sciences, ul. Radzikowskiego 152, 31-342 Cracow (Poland)
  2. Department of Physics, University of Alberta Edmonton, AB T6G 2J1 (Canada)
  3. Institute for Nuclear Research, Russian Academy of Sciences Moscow, 117312 (Russian Federation)
Publication Date:
OSTI Identifier:
20775226
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 17; Other Information: DOI: 10.1103/PhysRevLett.96.171803; (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; B QUARKS; CORRECTIONS; HADRONS; SEMILEPTONIC DECAY; STANDARD MODEL; STRONG INTERACTIONS; WEAK HADRONIC DECAY

Citation Formats

Czarnecki, Andrzej, Slusarczyk, Maciej, and Tkachov, Fyodor. Enhancement of Hadronic b Quark Decays. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.171803.
Czarnecki, Andrzej, Slusarczyk, Maciej, & Tkachov, Fyodor. Enhancement of Hadronic b Quark Decays. United States. doi:10.1103/PhysRevLett.96.171803.
Czarnecki, Andrzej, Slusarczyk, Maciej, and Tkachov, Fyodor. Fri . "Enhancement of Hadronic b Quark Decays". United States. doi:10.1103/PhysRevLett.96.171803.
@article{osti_20775226,
title = {Enhancement of Hadronic b Quark Decays},
author = {Czarnecki, Andrzej and Slusarczyk, Maciej and Tkachov, Fyodor},
abstractNote = {A class of previously unknown strong-interaction corrections is found to enhance the rate of nonleptonic decays of the b quark by 5%-8%. This effect decreases the predicted fraction of semileptonic decays and brings it into fair agreement with experimental results. As well as solving a long-standing puzzle of measurements disagreeing with the standard model prediction, our work suggests a way for future precise studies of nonleptonic b quark decays and their application to searching for 'new physics'.},
doi = {10.1103/PhysRevLett.96.171803},
journal = {Physical Review Letters},
number = 17,
volume = 96,
place = {United States},
year = {Fri May 05 00:00:00 EDT 2006},
month = {Fri May 05 00:00:00 EDT 2006}
}