Towards a global fit to extract the B->Xs gamma decay rate and Vub
Name
1011.5838.pdf
Description
Published version
Size
399.84 KB
Format
Unknown
Checksum (MD5)
0175a5b4745cf0f592bdeab9fa1c3f6b
Author(s)
Bernlochner, Florian U.
Lacker, Heiko
Ligeti, Zoltan
Stewart, Iain W
Tackmann, Frank
Tackmann, Kerstin
Date Issued
March 23, 2011
Journal
Proceeding of science
Publisher
Sissa Medialab
Citation
Bernlochner, Florian, Stewart, Iain W. and Tackmann, Frank J. 2011. "Towards a global fit to extract the B->Xs gamma decay rate and Vub."
Version
Final published version
Abstract
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. The total B → Xsγ decay rate and the CKM-matrix element |Vub| play an important role in finding indirect evidence for new physics affecting the flavor sector of the Standard Model, complementary to direct searches at the LHC and Tevatron. Their determination from inclusive B-meson decays requires the precise knowledge of the parton distribution function of the b quark in the B meson, called the shape function. We implement a new model-independent framework for the shape function with reliable uncertainties based on an expansion in a suitable set of basis functions. We present the current status of a global fit to BABAR and Belle data to extract the shape function and the B → Xsγ decay rate.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Center for Theoretical Physics
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.22323/1.120.0229
