Investigating the production of leptoquarks by means of zeros of amplitude at photon electron collider

Bandyopadhyay, Priyotosh and Dutta, Saunak and Karan, Anirban (2020) Investigating the production of leptoquarks by means of zeros of amplitude at photon electron collider. The European Physical Journal C, 80 (6). ISSN 1434-6044

Full text not available from this repository. (Request a copy)


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

[error in script]
IITH Creators:
IITH CreatorsORCiD
Bandyopadhyay, Priyotosh
Item Type: Article
Uncontrolled Keywords: leptoquarks , photon electron
Subjects: Physics
Divisions: Department of Physics
Depositing User: . LibTrainee 2021
Date Deposited: 30 Jun 2021 04:48
Last Modified: 30 Jun 2021 04:48
Publisher URL:
OA policy:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 8051 Statistics for this ePrint Item