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Unitarity triangle without semileptonic decays.
MedLine Citation:
PMID:  20867365     Owner:  NLM     Status:  In-Process    
The use of semileptonic decays has become standard in constraining the unitarity triangle. Since precise calculations of these are very challenging, we propose an entirely new approach. The ε{K} constraint, which depends extremely sensitively on |V{cb}|, is replaced by the interplay between ε{K}, BR(B→τν), and ΔM{B{s}}. Improvements on the B→τν branching ratio and on the lattice determinations of f{B{s}}B{s}{1/2} and f{B} can increase the effectiveness of this method significantly.
E Lunghi; Amarjit Soni
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Publication Detail:
Type:  Journal Article     Date:  2010-06-24
Journal Detail:
Title:  Physical review letters     Volume:  104     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-09-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  251802     Citation Subset:  -    
Physics Department, Indiana University, Bloomington, Indiana 47405, USA.
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