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Title: Evading the CKM Hierarchy

Abstract

We show that the presence of intrinsic charm in the hadrons' light-cone wave functions, even at a few percent level, provides new, competitive decay mechanisms for B decays which are nominally CKM-suppressed. For example, the weak decays of the B-meson to two-body exclusive states consisting of strange plus light hadrons, such as B {yields} {pi} K, are expected to be dominated by penguin contributions since the tree-level b {yields} s u{bar u} decay is CKM suppressed However, higher Fock states in the B wave function containing charm quark pairs can mediate the decay via a CKM-favored b {yields} s c{bar c} tree-level transition. Such intrinsic charm contributions can be phenomenologically significant. Since they mimic the amplitude structure of ''charming'' penguin contributions, charming penguins need not be penguins at all.

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, Menlo Park, CA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
787219
Report Number(s):
SLAC-PUB-8961
TRN: US0110486
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 15 Aug 2001
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; PARTICLE DECAY; HADRONS; LIGHT CONE; QUARKS; WAVE FUNCTIONS; B MESONS; C QUARKS

Citation Formats

Brodsky, Stanley J. Evading the CKM Hierarchy. United States: N. p., 2001. Web. doi:10.2172/787219.
Brodsky, Stanley J. Evading the CKM Hierarchy. United States. doi:10.2172/787219.
Brodsky, Stanley J. Wed . "Evading the CKM Hierarchy". United States. doi:10.2172/787219. https://www.osti.gov/servlets/purl/787219.
@article{osti_787219,
title = {Evading the CKM Hierarchy},
author = {Brodsky, Stanley J},
abstractNote = {We show that the presence of intrinsic charm in the hadrons' light-cone wave functions, even at a few percent level, provides new, competitive decay mechanisms for B decays which are nominally CKM-suppressed. For example, the weak decays of the B-meson to two-body exclusive states consisting of strange plus light hadrons, such as B {yields} {pi} K, are expected to be dominated by penguin contributions since the tree-level b {yields} s u{bar u} decay is CKM suppressed However, higher Fock states in the B wave function containing charm quark pairs can mediate the decay via a CKM-favored b {yields} s c{bar c} tree-level transition. Such intrinsic charm contributions can be phenomenologically significant. Since they mimic the amplitude structure of ''charming'' penguin contributions, charming penguins need not be penguins at all.},
doi = {10.2172/787219},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {8}
}

Technical Report:

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