Role of interference in unraveling the Z Z couplings of the newly discovered boson at the LHC

Mingshui Chen; Tongguang Cheng; James S. Gainer; Andrey Korytov; Konstantin T. Matchev; Predrag Milenovic; Guenakh Mitselmakher; Myeonghun Park; Aurelijus Rinkevicius; Matthew Snowball

doi:10.1103/PhysRevD.89.034002

Role of interference in unraveling the Z Z couplings of the newly discovered boson at the LHC

Mingshui Chen
, Tongguang Cheng
, James S. Gainer
, Andrey Korytov
, Konstantin T. Matchev
, Predrag Milenovic
, Guenakh Mitselmakher
, Myeonghun Park
, Aurelijus Rinkevicius
, Matthew Snowball

School of Natural Sciences

University of Florida

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

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.

Original language	English
Article number	034002
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	89
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.89.034002
State	Published - 3 Feb 2014

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Chen, M., Cheng, T., Gainer, J. S., Korytov, A., Matchev, K. T., Milenovic, P., Mitselmakher, G., Park, M., Rinkevicius, A., & Snowball, M. (2014). Role of interference in unraveling the Z Z couplings of the newly discovered boson at the LHC. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(3), Article 034002. https://doi.org/10.1103/PhysRevD.89.034002

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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.",

author = "Mingshui Chen and Tongguang Cheng and Gainer, \{James S.\} and Andrey Korytov and Matchev, \{Konstantin T.\} and Predrag Milenovic and Guenakh Mitselmakher and Myeonghun Park and Aurelijus Rinkevicius and Matthew Snowball",

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AU - Chen, Mingshui

AU - Cheng, Tongguang

AU - Gainer, James S.

AU - Korytov, Andrey

AU - Matchev, Konstantin T.

AU - Milenovic, Predrag

AU - Mitselmakher, Guenakh

AU - Park, Myeonghun

AU - Rinkevicius, Aurelijus

AU - Snowball, Matthew

PY - 2014/2/3

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N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84894650911

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DO - 10.1103/PhysRevD.89.034002

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JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 3

M1 - 034002

ER -

Role of interference in unraveling the Z Z couplings of the newly discovered boson at the LHC

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