Distinguishing signatures of scalar leptoquarks at hadron and muon colliders

Bandyopadhyay, Priyotosh and Karan, Anirban and Mandal, Rusa and et al, . (2022) Distinguishing signatures of scalar leptoquarks at hadron and muon colliders. The European Physical Journal C, 82 (10). pp. 1-41. ISSN 1434-6052

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Abstract

While the hunt for new states beyond the standardmodel (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 + p(T) finalstate gives the strongest signal for the singlet leptoquark at the 30 TeV LHC or Future Circular Collider (FCC), with a possibility of 5 sigma signal significance with greater than or similar to 1000 fb(-1) of integrated luminosity, for the chosen benchmark scenarios. The finalstate consisting of a c-jet and two tau-jets provides highest reach for the singlet leptoquark, probing an O(10(-1)) value of the Yukawa-type couplings for up to 3.0 TeV leptoquark mass. For the triplet leptoquark, 1 - jet + 2 mu + p(T) topology is the most optimistic signature at the LHC, probing leptoquark couplings to fermions at O(10(-1)) 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 leptoquarkmass scale at the LHC. We also perform the analysis at the proposed multiTeV muon collider, where an O(10(-1)) leptoquark Yukawa coupling can be probed for a 5.0 TeV leptoquark mass.

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IITH Creators:

IITH Creators	ORCiD
Bandyopadhyay, Priyotosh	http://orcid.org/0000-0003-0464-5116

Item Type:

Article

Additional Information:

The authors thank Rahul Sinha for useful suggestions. P.B. and A.K. acknowledge SERB CORE Grant CRG/2018/004971 and MATRICS Grant MTR/2020/000668 for the financial support. The work of R.M. is partly supported by the Alexander von Humboldt Foundation and the University of Siegen under the Young Investigator Research Group (Nachwuchsforscherinnengruppe) grant. S.P. acknowledges the Council of Scientific and Industrial Research (CSIR), India for funding his research (File no: 09/1001(0082)/2020-EMR-I). A.K also acknowledges the partial support by MCIN/AEI/10.13039/501100011033 Grant No. PID2020-114473GB-I00, and Grant PROMETEO/2021/071 (Generalitat Valenciana.)

Uncontrolled Keywords:

PAIR PRODUCTION,PHYSICS

Subjects:

Physics

Divisions:

Department of Physics

Depositing User:

. LibTrainee 2021

Date Deposited:

25 Oct 2022 10:42

Last Modified:

25 Oct 2022 10:42