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Jet substructure and probes of CP violation in Vh production
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Journal Article
Jet substructure and probes of CP violation in Vh production
2015
Overview
A
bstract
We analyse the
hVV
(
V
=
W, Z
) vertex in a model independent way using
Vh
production. To that end, we consider possible corrections to the Standard Model Higgs Lagrangian, in the form of higher dimensional operators which parametrise the effects of new physics. In our analysis, we pay special attention to linear observables that can be used to probe CP violation in the same. By considering the associated production of a Higgs boson with a vector boson (
W
or
Z
), we use jet substructure methods to define angular observables which are sensitive to new physics effects, including an asymmetry which is linearly sensitive to the presence of CP odd effects. We demonstrate how to use these observables to place bounds on the presence of higher dimensional operators, and quantify these statements using a log likelihood analysis. Our approach allows one to probe separately the
hZZ
and
hWW
vertices, involving arbitrary combinations of BSM operators, at the Large Hadron Collider.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
