Regular Article - Theoretical Physics
Distinguishing signatures of scalar leptoquarks at hadron and muon colliders
Indian Institute of Technology Hyderabad, Kandi, 502284, Sangareddy, Telangana, India
2 Instituto de Física Corpuscular (CSIC - Universitat de València), Apt. Correus 22085, 46071, Valencia, Spain
3 Indian Institute of Technology, 382355, Gandhinagar, Gujarat, India
Accepted: 14 September 2022
Published online: 15 October 2022
While the hunt for new states beyond the standard model (SM) goes on for various well motivated theories, the leptoquarks are among the most appealing scenarios at recent times due to a series of tensions observed in B-meson decays. We consider SU(2) singlet and triplet scalar leptoquarks separately, which contribute to charged and neutral current B-meson decays. Focusing on the single production of these two scalar leptoquarks, we perform a PYTHIA-based simulation considering all the dominant SM backgrounds at the current and future setups of the Large Hadron Collider (LHC). The mono-b-jet + finalstate gives the strongest signal for the singlet leptoquark at the 30 TeV LHC or Future Circular Collider (FCC), with a possibility of signal significance with fb of integrated luminosity, for the chosen benchmark scenarios. The finalstate consisting of a c-jet and two -jets provides highest reach for the singlet leptoquark, probing an value of the Yukawa-type couplings for up to 3.0 TeV leptoquark mass. For the triplet leptoquark, topology is the most optimistic signature at the LHC, probing leptoquark couplings to fermions at value for the leptoquark mass range up to 4.0 TeV. The invariant mass edge distribution is found to be instrumental in determination of the leptoquark mass scale at the LHC. We also perform the analysis at the proposed multi-TeV muon collider, where an leptoquark Yukawa coupling can be probed for a 5.0 TeV leptoquark mass.
© The Author(s) 2022
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. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.