https://doi.org/10.1140/epjc/s10052-021-09930-y
Regular Article - Theoretical Physics
Exploring new possibilities to discover a light pseudo-scalar at LHCb
1
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
Received:
23
June
2021
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
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3
