Charmless B Decays
Abstract
Rare charmless hadronic B decays are a good testing ground for the standard model. The dominant amplitudes contributing to this class of B decays are CKM suppressed tree diagrams and b {yields} s or b {yields} d loop diagrams (''penguins''). These decays can be used to study interfering standard model (SM) amplitudes and CP violation. They are sensitive to the presence of new particles in the loops, and they provide valuable information to constrain theoretical models of B decays. The B factories BABAR at SLAC and Belle at KEK produce B mesons in the reaction e{sup +}e{sup -} {yields} {Upsilon}(4S) {yields} B{bar B}. So far they have collected integrated luminosities of about 406 fb{sup -1} and 600 fb{sup -1}, respectively. The results presented here are based on subsets of about 200-500 fb{sup -1} and are preliminary unless a journal reference is given.
- Authors:
- Publication Date:
- Research Org.:
- Stanford Linear Accelerator Center (SLAC)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 900602
- Report Number(s):
- SLAC-PUB-12300
hep-ex/0701032; TRN: US0702346
- DOE Contract Number:
- AC02-76SF00515
- Resource Type:
- Conference
- Resource Relation:
- Conference: To appear in the proceedings of International Conference on Heavy Quarks and Leptons (HQL 06), Munich, Germany, 16-20 Oct 2006
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; AMPLITUDES; B MESONS; LEPTONS; QUARKS; STANDARD MODEL; STANFORD LINEAR ACCELERATOR CENTER; TESTING; TREES; Experiment-HEP,HEPEX
Citation Formats
Gradl, Wolfgang, and /Edinburgh U. Charmless B Decays. United States: N. p., 2007.
Web.
Gradl, Wolfgang, & /Edinburgh U. Charmless B Decays. United States.
Gradl, Wolfgang, and /Edinburgh U. Tue .
"Charmless B Decays". United States.
doi:. https://www.osti.gov/servlets/purl/900602.
@article{osti_900602,
title = {Charmless B Decays},
author = {Gradl, Wolfgang and /Edinburgh U.},
abstractNote = {Rare charmless hadronic B decays are a good testing ground for the standard model. The dominant amplitudes contributing to this class of B decays are CKM suppressed tree diagrams and b {yields} s or b {yields} d loop diagrams (''penguins''). These decays can be used to study interfering standard model (SM) amplitudes and CP violation. They are sensitive to the presence of new particles in the loops, and they provide valuable information to constrain theoretical models of B decays. The B factories BABAR at SLAC and Belle at KEK produce B mesons in the reaction e{sup +}e{sup -} {yields} {Upsilon}(4S) {yields} B{bar B}. So far they have collected integrated luminosities of about 406 fb{sup -1} and 600 fb{sup -1}, respectively. The results presented here are based on subsets of about 200-500 fb{sup -1} and are preliminary unless a journal reference is given.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 06 00:00:00 EST 2007},
month = {Tue Mar 06 00:00:00 EST 2007}
}
-
Search for Inclusive Charmless B to K+X and B to K0X Decays
We present preliminary results from a search for inclusive charmless B {yields} KX decays. These decays occur dominantly via one-loop b {yields} s penguin transitions, and can provide useful information about these processes. Using a sample of 288.5 fb{sup -1} collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} B Factory at SLAC, we search for high-energy kaons recoiling against fully reconstructed B decays. We measure the partial branching fractions for kaons with momentum p*(K) > 2.34 GeV in the B rest frame, and obtain (in units of 10{sup -6}): {Beta}(B {yields} K{sup +}X, p* > 2.34more » -