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An EFT approach to baryon number violation: lower limits on the new physics scale and correlations between nucleon decay modes
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An EFT approach to baryon number violation: lower limits on the new physics scale and correlations between nucleon decay modes
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Journal Article
An EFT approach to baryon number violation: lower limits on the new physics scale and correlations between nucleon decay modes
2024
Overview
A
bstract
Baryon number is an accidental symmetry of the Standard Model at the Lagrangian level. Its violation is arguably one of the most compelling phenomena predicted by physics beyond the Standard Model. Furthermore, there is a large experimental effort to search for it including the Hyper-K, DUNE, JUNO, and THEIA experiments. Therefore, an agnostic, model-independent, analysis of baryon number violation using the power of Effective Field Theory is very timely. In particular, in this work we study the contribution of dimension six and seven effective operators to |∆(
B
−
L
)| = 0
,
2 nucleon decays taking into account the effects of Renormalisation Group Evolution. We obtain lower limits on the energy scale of each operator and study the correlations between different decay modes. We find that for some operators the effect of running is very significant.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V,SpringerOpen
Subject
