Regular Article - Theoretical Physics
Exploring new possibilities to discover a light pseudo-scalar at LHCb
Department of Physics, Chalmers University of Technology, Fysikgården, 41296, Gothenburg, Sweden
2 Physics Department, University of Gothenburg, 41296, Gothenburg, Sweden
3 Institut de Physique des 2 Infinis (IP2I), CNRS/IN2P3, UMR5822, 69622, Villeurbanne, France
4 Université de Lyon, Université Claude Bernard Lyon 1, 69001, Lyon, France
5 Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
6 Center for Theoretical Physics of the Universe, Institute for Basic Science (IBS), 34126, Daejeon, Korea
7 European Organization for Nuclear Research (CERN), Geneva, Switzerland
Accepted: 10 December 2021
Published online: 3 January 2022
We study the possibility of observing a light pseudo-scalar a at LHCb. We target the mass region and various decay channels, some of which have never been considered before: muon pairs, tau pairs, D meson pairs, and di-photon. We interpret the results in the context of models of 4D Composite Higgs and Partial Compositeness in particular.
© The Author(s) 2021
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