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TENSION BETWEEN SCALAR/PSEUDOSCALAR NEW PHYSICS CONTRIBUTION TO Bs -> mu(+)mu(-) AND B -> K mu(+)mu(-)

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Title TENSION BETWEEN SCALAR/PSEUDOSCALAR NEW PHYSICS CONTRIBUTION TO Bs -> mu(+)mu(-) AND B -> K mu(+)mu(-)
 
Creator ALOK, AK
DIGHE, A
SANKAR, SU
 
Subject branching ratio
decays
model
b meson decays
scalar/pseudoscalar operators
 
Description New physics in the form of scalar/pseudoscalar operators cannot lower the semileptonic branching ratio Br(B -> K mu(+)mu(-)) below its standard model value. In addition, we show that the upper bound on the leptonic branching ratio Br(B(s)->mu(+)pi(-)) sets a strong constraint on the maximum value of Br(B -> K mu(+)mu(-)) in models with multiple Higgs doublets: with the current bound, Br(B -> K mu(+)pi(-)) cannot exceed the standard model prediction by more than 2.5%. The conclusions hold true even if the new physics couplings are complex. However, these constraints can be used to restrict new physics couplings only if the theoretical and experimental errors in Br (B -> K mu(+)mu(-)) are reduced to a few per cent. The constraints become relaxed in a general class of models with scalar/pesudoscalar operators.
 
Publisher WORLD SCIENTIFIC PUBL CO PTE LTD
 
Date 2011-09-02T02:41:55Z
2011-12-26T12:59:55Z
2011-12-27T05:53:05Z
2011-09-02T02:41:55Z
2011-12-26T12:59:55Z
2011-12-27T05:53:05Z
2010
 
Type Article
 
Identifier MODERN PHYSICS LETTERS A, 25(13), 1099-1106
0217-7323
http://dx.doi.org/10.1142/S021773231003238X
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12944
http://hdl.handle.net/10054/12944
 
Language en