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Title: Probing lepton number violation: a comprehensive survey of dimension-7 SMEFT
A<sc>bstract</sc> Observation of lepton number violation would represent a groundbreaking discovery with profound consequences for fundamental physics and as such, it has motivated an extensive experimental program searching for neutrinoless double beta decay. However, the violation of lepton number can be also tested by a variety of other observables. We focus on the possibilities of probing this fundamental symmetry within the framework of the Standard Model Effective Field Theory (SMEFT) beyond the minimal dimension-5. Specifically, we study the bounds on ∆L= 2 dimension-7 effective operators beyond the electron flavor imposed by all relevant low-energy observables and confront them with derived high-energy collider limits. We also discuss how the synergy of the analyzed multi-frontier observables can play a crucial role in distinguishing among different dimension-7 SMEFT operators.  more » « less
Award ID(s):
2020275
PAR ID:
10508935
Author(s) / Creator(s):
; ; ;
Corporate Creator(s):
Editor(s):
NA
Publisher / Repository:
JHEP
Date Published:
Journal Name:
Journal of High Energy Physics
Edition / Version:
1
Volume:
2024
Issue:
5
ISSN:
1029-8479
Page Range / eLocation ID:
154
Subject(s) / Keyword(s):
None
Format(s):
Medium: X Size: 1.72MB Other: pdf
Size(s):
1.72MB
Sponsoring Org:
National Science Foundation
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