1,438 research outputs found
New physics solutions for and
Recent measurements of have reduced tension with the Standard Model
prediction. Taking all the present data into account, we obtain the values of
the Wilson coefficients of each new physics four-fermion operator of a given
Lorentz structure. We find that the combined data rule out most of the
solutions based on scalar/pseudoscalar operators. By studying the
inter-relations between different solutions, we find that there are only four
allowed solutions, which are based on operators with , linear
combination of and , tensor and linear combination of
scalar/pseudoscalar and tensor structure. We demonstrate that the need for new
physics is driven by those measurement of and where the
lepton is not studied. Further, we show that new physics only in is not compatible with the full set of observables in the
decays and .Comment: 16 pages, 1 figure (Accepted for publication in JHEP
Social costs and benefits of micro irrigation system adoption in canal commands: a study from IGNP command area of Bikaner in Rajasthan
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