A framework for Higgs characterisation

• Published in: The journal of high energy physics Vol. 2013; no. 11; pp. 1 - 38
• Main Authors: Artoisenet, P., de Aquino, P., Demartin, F., Frederix, R., Frixione, S., Maltoni, F., Mandal, M. K., Mathews, P., Mawatari, K., Ravindran, V., Seth, S., Torrielli, P., Zaro, M.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-11-2013; Springer Nature B.V
• Subjects: Bosons; Channels; Classical and Quantum Gravitation; Decomposition; Elementary Particles; Field theory; High energy physics; Mathematical analysis; Parity; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Relativity Theory; Showers; Simulation; String Theory; Phenomenological Models; Monte Carlo Simulations
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP11(2013)043

A
bstract
We introduce a framework, based on an effective field theory approach, that allows one to perform characterisation studies of the boson recently discovered at the LHC, for all the relevant channels and in a consistent, systematic and accurate way. The production and decay of such a boson with various spin and parity assignments can be simulated by means of multi-parton, tree-level matrix elements and of next-to-leading order QCD calculations, both matched with parton showers. Several sample applications are presented which show, in particular, that beyond-leading-order effects in QCD have nontrivial phenomenological implications.