Naslov
Triple-leptoquark interactions for tree- and loop-level proton decays

Autori
Doršner, Ilja ; Fajfer, Svjetlana ; Sumensari, Olcyr

Izvornik
The Journal of high energy physics (1126-6708) 2022 (2022), 5; 183, 16

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
proton decay ; leptoquarks

Sažetak
We study the impact of triple-leptoquark interactions on matter stability for two specific proton decay topologies that arise at the tree- and one-loop level if and when they coexist. We demonstrate that the one-loop level topology is much more relevant than the tree-level one when it comes to the proton decay signatures despite the usual loop-suppression factor. We subsequently present detailed analysis of the triple-leptoquark interaction effects on the proton stability within one representative scenario to support our claim, where the scenario in question simultaneously features a tree-level topology that yields three-body proton decay p → e+e+e− and a one-loop level topology that induces two-body proton decays p → π0e+ and p → π+𝜈⎯⎯⎯. We also provide a comprehensive list of the leading-order proton decay channels for all non-trivial cubic and quartic contractions involving three scalar leptoquark multiplets that generate triple-leptoquark interactions of our interest, where in the latter case one of the scalar multiplets is the Standard Model Higgs doublet.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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