Investigating the Production of Leptoquarks by Means of Zeros of Amplitude at Photon Electron Collider

Abstract

Leptoquarks are one of the possible candidates for explaining various anomalies in flavour physics. Nonetheless, their existence is yet to be confirmed from experimental side. In this paper we have shown how zeros of single photon tree-level amplitude can be used to extract information about leptoquarks in case of $e$-$\gamma$ colliders. Small number of standard model backgrounds keep the signal clean in this kind of colliders. Unlike other colliders, the zeros of single photon amplitude here depend on $\sqrt{s}$ as well as the mass of leptoquark along with its electric charge. We perform a PYTHIA based simulation for reconstructing the leptoquark from its decay products of first generation and estimating the background with luminosity of 100 fb${}^{-1}$. Our analysis is done for all the leptoquarks that can be seen at $e$-$\gamma$ collider with three different masses (70 GeV, 650 GeV and 1 TeV) and three different centre of momentum energy (200 GeV, 2 TeV and 3 TeV). The effects of non-monochromatic photons on the zeros of amplitude under laser backscattering and equivalent photon approximation have also been addressed.

46 pages, 14 figures, 15 tables, accepted in EPJC. The effects of non-monochromatic photons have been included

References in corpus (14)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• B-physics anomalies: a guide to combined explanations
• Baryon Number and Lepton Universality Violation in Leptoquark and Diquark Models
• Leptoquark model to explain the $B$-physics anomalies, $R_K$ and $R_D$
• B-decay Anomalies in a Composite Leptoquark Model
• High-pT Signatures in Vector-Leptoquark Models
• $(g-2{)}_{\mu }$, Lepton Flavour Violation and $Z$ Decays with Leptoquarks: Correlations and Future Prospects
• Explaining the $R_K$ and $R_{D^{(\ast )}}$ anomalies with vector leptoquarks
• Vector Leptoquarks Beyond Tree Level
• Minimal Flavour Violation for Leptoquarks
• Rare semileptonic $B\to K(\pi )l_i^{-}{l}_j^{+}$ decay in vector leptoquark model
• Effects of scalar leptoquark on semileptonic ${\Lambda }_b$ decays
• Photon collider Higgs factories
• Vacuum stability in an extended standard model with a leptoquark

Cited by in corpus (10)

• Searching for Leptoquarks at Future Muon Colliders
• Precise limits on the charge-$2/3$ $U_1$ vector leptoquark
• Distinguishing signatures of scalar leptoquarks at hadron and muon colliders
• Improving third-generation leptoquark searches with combined signals and boosted top
• Phenomenology of Scalar Leptoquarks at the LHC in Explaining the Radiative Neutrino Mass, Muon $g-2$ and Lepton Flavour Violating Observables
• Searching for heavy leptoquarks at a muon collider
• Distinguishing Leptoquarks at the LHC/FCC
• Seesaw Models under the Lens of Angular Distributions at ${\mu }^{+}{\mu }^{-},{\mu }^{+}{\mu }^{+},{\mu }^{+}\gamma$ and ${\mu }^{+}{e}^{-}$ Colliders
• Indian Contributions to LHC Theory
• Constraining Scalar Doublet and Triplet Leptoquarks with Vacuum Stability and Perturbativity