Corpus ID: 236469349

Renormalization group improved implications of semileptonic operators in SMEFT

@inproceedings{Kumar2021RenormalizationGI,
  title={Renormalization group improved implications of semileptonic operators in SMEFT},
  author={Jacky Kumar},
  year={2021}
}
  • Jacky Kumar
  • Published 2021
  • Physics
We study implications of the four-fermion semileptonic operators at the low-energy and at electroweak (EW) scale in the framework of Standard Model Effective Field Theory (SMEFT). We show how the renormalization group (RG) running effects can play a key role in probing the generic flavour structure of such operators. It is shown that at the 1loop level, through RG running, depending upon the flavour structure these operators can give rise to sizable effects at low energy in the electroweak… Expand

References

SHOWING 1-10 OF 106 REFERENCES
Renormalisation-group improved analysis of μ → e processes in a systematic effective-field-theory approach
A bstractIn this article, a complete analysis of the three muonic lepton-flavour violating processes μ → eγ, μ → 3e and coherent nuclear μ → e conversion is performed in the framework of an effectiveExpand
On the importance of electroweak corrections for B anomalies
A bstractThe growing experimental indication of Lepton Flavour Universality Violation (LFUV) both in charged- and neutral-current semileptonic B-decays, has triggered many theoretical interpretationsExpand
Low-energy effective field theory below the electroweak scale: operators and matching
A bstractThe gauge-invariant operators up to dimension six in the low-energy effective field theory below the electroweak scale are classified. There are 70 Hermitian dimension-five and 3631Expand
Towards consistent Electroweak Precision Data constraints in the SMEFT
A bstractWe discuss the impact of many previously neglected effects of higher dimensional operators when fitting to Electroweak Precision data (EWPD) in the Standard Model Effective Field TheoryExpand
Low-energy effective field theory below the electroweak scale: anomalous dimensions
A bstractWe compute the one-loop anomalous dimensions of the low-energy effective Lagrangian below the electroweak scale, up to terms of dimension six. The theory has 70 dimension-five and 3631Expand
Renormalization group evolution of the Standard Model dimension six operators III: gauge coupling dependence and phenomenology
A bstractWe calculate the gauge terms of the one-loop anomalous dimension matrix for the dimension-six operators of the Standard Model effective field theory (SM EFT). Combining these results withExpand
Revisiting Lepton Flavor Universality in B Decays.
TLDR
The low-energy effective Lagrangian is constructed taking into account the running effects from Λ down to v through the one-loop renormalization group equations (RGEs) in the limit of exact electroweak symmetry and QED RGEs from v down to the 1 GeV scale. Expand
Effective lagrangian analysis of new interactions and flavour conservation
Abstract New interactions with a scale Λ larger than the Fermi scale G F − 1 2 will manifest themselves at energies below Λ through small deviations from the standard model, which can be described byExpand
Matching of gauge invariant dimension-six operators for b → s and b → c transitions
A bstractNew physics realized above the electroweak scale can be encoded in a model independent way in the Wilson coefficients of higher dimensional operators which are in-variant under the StandardExpand
Analytic inclusion of the scale dependence of the anomalous dimension matrix in Standard Model Effective Theory
A bstractThe renormalization group equations (RGEs) in Standard Model effective theory are usually either solved analytically, neglecting the scale dependence of gauge and Yukawa couplings, orExpand
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