论文标题

LHC标量leptoquarks的现象学解释了辐射性中微子质量,muon $ g-2 $和违反Lepton的风味

Phenomenology of Scalar Leptoquarks at the LHC in Explaining the Radiative Neutrino Mass, Muon $g-2$ and Lepton Flavour Violating Observables

论文作者

Parashar, Snehashis, Karan, Anirban, Avnish, Bandyopadhyay, Priyotosh, Ghosh, Kirtiman

论文摘要

我们研究了标准模型(SM)的特定Leptokark扩展的现象学,即SM(DSL-SM)的Doublet-Singlet标量标量扩展。除了为中微子产生主要质量外,这些leptoquarks促进了Muon和Electron $(G-2)$以及各种违反Lepton风味的过程。基准点(BPS)的对撞机签名与中微子振荡数据,异常的振荡/电子磁矩,违反Lepton风味的实验界限,可观察到的实验界限等,使用14、27、27和100 TEV的centre centre Mass Energies进行了LHC/FCC。虽然来自Singlet和Doublet Leptoquark混合的两个$ -1/3 $带电的彩色标量相互混合,但Doublet Leptoquark的$ 2/3 $彩色标量仍然是纯净的。凭借近乎化的质谱,纯净和混合的leptoquark状态与多个最终状态可区分,而两个混合状态之间的辨别仍然非常具有挑战性。

We study the phenomenology of a particular leptoquark extension of the Standard Model (SM), namely the doublet-singlet scalar leptoquark extension of the SM (DSL-SM). Besides generating Majorana mass for neutrinos, these leptoquarks contribute to muon and electron $(g-2)$ and various lepton flavour violating processes. Collider signatures of the benchmark points (BPs), consistent with the neutrino oscillation data, anomalous muon/electron magnetic moments, experimental bounds on the charged lepton flavour violation observables, etc., are studied at the LHC/FCC with centre-of-mass energies of 14, 27 and 100 TeV. While the two $-1/3$ charged colored scalars from singlet and doublet leptoquark mix with each other, the charge $2/3$ colored scalar from the doublet leptoquark remains pure. With a near-degenerate mass spectrum, the pure and mixed leptoquark states are shown to be distinguishable from multiple finalstates, while discerning between the two mixed states remain very challenging.

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