Eur. Phys. J. C (2016) 76: 501
https://doi.org/10.1140/epjc/s10052-016-4345-9

Regular Article - Theoretical Physics

Measuring rare and exclusive Higgs boson decays into light resonances

¹ School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK
² Institute for Particle Physics Phenomenology, Department of Physics, Durham University, Durham, DH1 3LE, UK

^* e-mail: s.s.kuttimalai@durham.ac.uk

Received: 15 July 2016
Accepted: 29 August 2016
Published online: 14 September 2016

Abstract

We evaluate the LHC’s potential of observing Higgs boson decays into light elementary or composite resonances through their hadronic decay channels. We focus on the Higgs boson production processes with the largest cross sections, and , with subsequent decays or , and comment on the production process . By exploiting track-based jet substructure observables and extrapolating to we find at 95 % CL. We interpret this limit in terms of the 2HDM Type 1. We find that searches for are complementary to existing measurements and can constrain large parts of the currently allowed parameter space.