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Role of interference in unraveling theZZcouplings of the newly discovered boson at the LHC

Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology2014Vol. 89(3)

Citations Over TimeTop 10% of 2014 papers

Mingshui Chen, Tongguang Cheng, James S. Gainer, A. Korytov, K. Matchev, Predrag Milenović, G. Mitselmakher, Myeonghun Park, A. Rinkevičius, Matthew Snowball

Abstract

We present a general procedure for measuring the tensor structure of the coupling of the scalar Higgs-like boson recently discovered at the LHC to two $Z$ bosons, including the effects of interference among different operators. To motivate our concern with this interference, we explore the parameter space of the couplings in the effective theory describing these interactions and illustrate the effects of interference on the differential dilepton mass distributions. Kinematic discriminants for performing coupling measurements that utilize the effects of interference are developed and described. We present projections for the sensitivity of coupling measurements that use these discriminants in future LHC operation in a variety of physics scenarios.

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