Analytic next-to-leading order calculation of energy-energy correlation in gluon-initiated Higgs decays

A bstract The energy-energy correlation (EEC) function in e + e − annihilation is currently the only QCD event shape observable for which we know the full analytic result at the next-to-leading order (NLO). In this work we calculate the EEC observable for gluon initiated Higgs decay analytically at...

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Published inThe journal of high energy physics Vol. 2019; no. 6; pp. 1 - 35
Main Authors Luo, Ming-xing, Shtabovenko, Vladyslav, Yang, Tong-Zhi, Zhu, Hua Xing
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2019
Springer Nature B.V
SpringerOpen
Subjects
Asymptotic properties
Classical and Quantum Gravitation
Elementary Particles
Field theory
High energy physics
Jets
Mathematical analysis
NLO Computations
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
NLO Computations
Jets
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Summary:A bstract The energy-energy correlation (EEC) function in e + e − annihilation is currently the only QCD event shape observable for which we know the full analytic result at the next-to-leading order (NLO). In this work we calculate the EEC observable for gluon initiated Higgs decay analytically at NLO in the Higgs Effective Field Theory (HEFT) framework and provide the full results expressed in terms of classical polylogarithms, including the asymptotic behavior in the collinear and back-to-back limits. This observable can be, in principle, measured at the future e + e − colliders such as CEPC, ILC, FCC-ee or CLIC. It provides an interesting opportunity to simultaneously probe our understanding of the strong and Higgs sectors and can be used for the determinations of the strong coupling.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2019)037