TY  - JOUR
AU  - Filipuzzi, A.
PY  - 2011
DA  - 2011//
TI  - Universality Violation In Leptonic W Decays: An Effective Field Theory Approach
JO  - Acta Physica Polonica B
SP  - 2453
EP  - 2459
VL  - 42
IS  - 11
AB  - We analyse the deviation from universality in leptonic W decays suggested by current PDG data within a general effective field theory approach. Considering the constraints to the New Physics effects coming from Electroweak precision observables we are able to set limits on the amount of universality violation that can be accounted for in a broad class of New Physics models. Our approach starts from a usual Single Operator analysis and extends up to considering the interplay of all the effective operators defined by our EFT.
SN  - 0587-4254
UR  - https://doi.org/10.5506/APhysPolB.42.2453
DO  - 10.5506/APhysPolB.42.2453
N1  - WOS:000298076600033
ID  - Filipuzzi2011
ER  -