Cargando…
The Fermionic Universal One-Loop Effective Action
Recent development of path integral matching techniques based on the covariant derivative expansion has made manifest a universal structure of one-loop effective Lagrangians. The universal terms can be computed once and for all to serve as a reference for one-loop matching calculations and to ease t...
Autores principales: | , , , , |
---|---|
Lenguaje: | eng |
Publicado: |
2020
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1007/JHEP11(2020)078 http://cds.cern.ch/record/2722581 |
_version_ | 1780965906741985280 |
---|---|
author | Ellis, Sebastian A.R. Quevillon, Jérémie Vuong, Pham Ngoc Hoa You, Tevong Zhang, Zhengkang |
author_facet | Ellis, Sebastian A.R. Quevillon, Jérémie Vuong, Pham Ngoc Hoa You, Tevong Zhang, Zhengkang |
author_sort | Ellis, Sebastian A.R. |
collection | CERN |
description | Recent development of path integral matching techniques based on the covariant derivative expansion has made manifest a universal structure of one-loop effective Lagrangians. The universal terms can be computed once and for all to serve as a reference for one-loop matching calculations and to ease their automation. Here we present the fermionic universal one-loop effective action (UOLEA), resulting from integrating out heavy fermions (Dirac or Majorana) with scalar, pseudo-scalar, vector and axial-vector couplings. We also clarify the relation of the new terms computed here to terms previously computed in the literature and those that remain to complete the UOLEA. Our results can be readily used to efficiently obtain analytical expressions for effective operators arising from heavy fermion loops [13]. |
id | cern-2722581 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2020 |
record_format | invenio |
spelling | cern-27225812023-10-04T06:55:35Zdoi:10.1007/JHEP11(2020)078http://cds.cern.ch/record/2722581engEllis, Sebastian A.R.Quevillon, JérémieVuong, Pham Ngoc HoaYou, TevongZhang, ZhengkangThe Fermionic Universal One-Loop Effective Actionhep-thParticle Physics - Theoryhep-phParticle Physics - PhenomenologyRecent development of path integral matching techniques based on the covariant derivative expansion has made manifest a universal structure of one-loop effective Lagrangians. The universal terms can be computed once and for all to serve as a reference for one-loop matching calculations and to ease their automation. Here we present the fermionic universal one-loop effective action (UOLEA), resulting from integrating out heavy fermions (Dirac or Majorana) with scalar, pseudo-scalar, vector and axial-vector couplings. We also clarify the relation of the new terms computed here to terms previously computed in the literature and those that remain to complete the UOLEA. Our results can be readily used to efficiently obtain analytical expressions for effective operators arising from heavy fermion loops [13].Recent development of path integral matching techniques based on the covariant derivative expansion has made manifest a universal structure of one-loop effective Lagrangians. The universal terms can be computed once and for all to serve as a reference for one-loop matching calculations and to ease their automation. Here we present the fermionic universal one-loop effective action (UOLEA), resulting from integrating out heavy fermions with scalar, pseudo-scalar, vector and axial-vector couplings. We also clarify the relation of the new terms computed here to terms previously computed in the literature and those that remain to complete the UOLEA. Our results can be readily used to efficiently obtain analytical expressions for effective operators arising from heavy fermion loops.arXiv:2006.16260CERN-TH-2020-104CALT-TH-2020-027oai:cds.cern.ch:27225812020-06-29 |
spellingShingle | hep-th Particle Physics - Theory hep-ph Particle Physics - Phenomenology Ellis, Sebastian A.R. Quevillon, Jérémie Vuong, Pham Ngoc Hoa You, Tevong Zhang, Zhengkang The Fermionic Universal One-Loop Effective Action |
title | The Fermionic Universal One-Loop Effective Action |
title_full | The Fermionic Universal One-Loop Effective Action |
title_fullStr | The Fermionic Universal One-Loop Effective Action |
title_full_unstemmed | The Fermionic Universal One-Loop Effective Action |
title_short | The Fermionic Universal One-Loop Effective Action |
title_sort | fermionic universal one-loop effective action |
topic | hep-th Particle Physics - Theory hep-ph Particle Physics - Phenomenology |
url | https://dx.doi.org/10.1007/JHEP11(2020)078 http://cds.cern.ch/record/2722581 |
work_keys_str_mv | AT ellissebastianar thefermionicuniversaloneloopeffectiveaction AT quevillonjeremie thefermionicuniversaloneloopeffectiveaction AT vuongphamngochoa thefermionicuniversaloneloopeffectiveaction AT youtevong thefermionicuniversaloneloopeffectiveaction AT zhangzhengkang thefermionicuniversaloneloopeffectiveaction AT ellissebastianar fermionicuniversaloneloopeffectiveaction AT quevillonjeremie fermionicuniversaloneloopeffectiveaction AT vuongphamngochoa fermionicuniversaloneloopeffectiveaction AT youtevong fermionicuniversaloneloopeffectiveaction AT zhangzhengkang fermionicuniversaloneloopeffectiveaction |