Renormalization-group equations of the LEFT at two loops: dimension-six baryon-number-violating operators
Abstract We present the second part of a systematic calculation of the two-loop anomalous dimensions for the low-energy effective field theory below the electroweak scale (LEFT): the baryon-number-violating sector at dimension six in the power counting. We obtain the results in two different schemes...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-07-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP07(2025)237 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849767432191737856 |
|---|---|
| author | Luca Naterop Peter Stoffer |
| author_facet | Luca Naterop Peter Stoffer |
| author_sort | Luca Naterop |
| collection | DOAJ |
| description | Abstract We present the second part of a systematic calculation of the two-loop anomalous dimensions for the low-energy effective field theory below the electroweak scale (LEFT): the baryon-number-violating sector at dimension six in the power counting. We obtain the results in two different schemes: in the algebraically consistent ’t Hooft-Veltman scheme for γ 5, corrected for evanescent as well as chiral-symmetry-breaking effects through finite renormalizations; and in naive dimensional regularization, which in the considered sector of the theory does not lead to any ill-defined γ 5-odd traces. Our results are of interest for a reanalysis of the constraints on physics beyond the Standard Model from proton-decay searches within an EFT framework at next-to-leading-logarithmic accuracy. |
| format | Article |
| id | doaj-art-a205c1e6ac3a4fb1b9cfc50b0dfde147 |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-a205c1e6ac3a4fb1b9cfc50b0dfde1472025-08-20T03:04:12ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025712810.1007/JHEP07(2025)237Renormalization-group equations of the LEFT at two loops: dimension-six baryon-number-violating operatorsLuca Naterop0Peter Stoffer1Physik-Institut, Universität ZürichPhysik-Institut, Universität ZürichAbstract We present the second part of a systematic calculation of the two-loop anomalous dimensions for the low-energy effective field theory below the electroweak scale (LEFT): the baryon-number-violating sector at dimension six in the power counting. We obtain the results in two different schemes: in the algebraically consistent ’t Hooft-Veltman scheme for γ 5, corrected for evanescent as well as chiral-symmetry-breaking effects through finite renormalizations; and in naive dimensional regularization, which in the considered sector of the theory does not lead to any ill-defined γ 5-odd traces. Our results are of interest for a reanalysis of the constraints on physics beyond the Standard Model from proton-decay searches within an EFT framework at next-to-leading-logarithmic accuracy.https://doi.org/10.1007/JHEP07(2025)237Baryon/Lepton Number ViolationEffective Field TheoriesRenormalization and RegularizationRenormalization Group |
| spellingShingle | Luca Naterop Peter Stoffer Renormalization-group equations of the LEFT at two loops: dimension-six baryon-number-violating operators Journal of High Energy Physics Baryon/Lepton Number Violation Effective Field Theories Renormalization and Regularization Renormalization Group |
| title | Renormalization-group equations of the LEFT at two loops: dimension-six baryon-number-violating operators |
| title_full | Renormalization-group equations of the LEFT at two loops: dimension-six baryon-number-violating operators |
| title_fullStr | Renormalization-group equations of the LEFT at two loops: dimension-six baryon-number-violating operators |
| title_full_unstemmed | Renormalization-group equations of the LEFT at two loops: dimension-six baryon-number-violating operators |
| title_short | Renormalization-group equations of the LEFT at two loops: dimension-six baryon-number-violating operators |
| title_sort | renormalization group equations of the left at two loops dimension six baryon number violating operators |
| topic | Baryon/Lepton Number Violation Effective Field Theories Renormalization and Regularization Renormalization Group |
| url | https://doi.org/10.1007/JHEP07(2025)237 |
| work_keys_str_mv | AT lucanaterop renormalizationgroupequationsoftheleftattwoloopsdimensionsixbaryonnumberviolatingoperators AT peterstoffer renormalizationgroupequationsoftheleftattwoloopsdimensionsixbaryonnumberviolatingoperators |