Jet substructure and probes of CP violation in Vh production

Godbole, R.M., Miller, D.J. , Mohan, K.A. and White, C.D. (2015) Jet substructure and probes of CP violation in Vh production. Journal of High Energy Physics, 2015(4), 103. (doi: 10.1007/JHEP04(2015)103)

Abstract

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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: White, Dr Christopher and Miller, Dr David
• Authors: Godbole, R.M., Miller, D.J., Mohan, K.A., and White, C.D.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Journal of High Energy Physics
• Publisher: Springer
• ISSN: 1029-8479
• ISSN (Online): 1029-8479
• Published Online: 20 April 2015
• Copyright Holders: Copyright © 2015 The Authors
• First Published: First published in Journal of High Energy Physics 2015(4): 103
• Publisher Policy: Reproduced under a Creative Commons License