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Title: Extending the Universal One-Loop Effective Action: heavy-light coefficients

The Universal One-Loop Effective Action (UOLEA) is a general expression for the effective action obtained by evaluating in a model-independent way the one-loop expansion of a functional path integral. It can also be used to match UV theories to their low-energy EFTs more efficiently by avoiding redundant steps in the application of functional methods, simplifying the process of obtaining Wilson coefficients of operators up to dimension six. In addition to loops involving only heavy fields, matching may require the inclusion of loops containing both heavy and light particles. Here we use the recently-developed covariant diagram technique to extend the UOLEA to include heavy-light terms which retain the same universal structure as the previously-derived heavy-only terms. As an example of its application, we integrate out a heavy singlet scalar with a linear coupling to a light doublet Higgs. The extension presented here is a first step towards completing the UOLEA to incorporate all possible structures encountered in a covariant derivative expansion of the one-loop path integral.
Authors:
 [1] ;  [2] ;  [3] ;  [1]
  1. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Physics and Michigan Center for Theoretical Physics (MCTP)
  2. King's College London (United Kingdom). Theoretical Particle Physics and Cosmology Group and Physics Dept.
  3. Univ. of Cambridge (United Kingdom). Dept. of Applied Mathematics and Theoretical Physics and Cavendish Lab.
Publication Date:
Grant/Contract Number:
SC0007859; ST/L000326/1
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 8; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org:
USDOE Office of Science (SC); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Univ. of Cambridge-Gonville and Caius College, Cambridge (United Kingdom); Science and Technology Facilities Council (STFC) (United Kingdom)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Phenomenology of Field Theories in Higher Dimensions
OSTI Identifier:
1425648

Ellis, Sebastian A. R., Quevillon, Jérémie, You, Tevong, and Zhang, Zhengkang. Extending the Universal One-Loop Effective Action: heavy-light coefficients. United States: N. p., Web. doi:10.1007/JHEP08(2017)054.
Ellis, Sebastian A. R., Quevillon, Jérémie, You, Tevong, & Zhang, Zhengkang. Extending the Universal One-Loop Effective Action: heavy-light coefficients. United States. doi:10.1007/JHEP08(2017)054.
Ellis, Sebastian A. R., Quevillon, Jérémie, You, Tevong, and Zhang, Zhengkang. 2017. "Extending the Universal One-Loop Effective Action: heavy-light coefficients". United States. doi:10.1007/JHEP08(2017)054. https://www.osti.gov/servlets/purl/1425648.
@article{osti_1425648,
title = {Extending the Universal One-Loop Effective Action: heavy-light coefficients},
author = {Ellis, Sebastian A. R. and Quevillon, Jérémie and You, Tevong and Zhang, Zhengkang},
abstractNote = {The Universal One-Loop Effective Action (UOLEA) is a general expression for the effective action obtained by evaluating in a model-independent way the one-loop expansion of a functional path integral. It can also be used to match UV theories to their low-energy EFTs more efficiently by avoiding redundant steps in the application of functional methods, simplifying the process of obtaining Wilson coefficients of operators up to dimension six. In addition to loops involving only heavy fields, matching may require the inclusion of loops containing both heavy and light particles. Here we use the recently-developed covariant diagram technique to extend the UOLEA to include heavy-light terms which retain the same universal structure as the previously-derived heavy-only terms. As an example of its application, we integrate out a heavy singlet scalar with a linear coupling to a light doublet Higgs. The extension presented here is a first step towards completing the UOLEA to incorporate all possible structures encountered in a covariant derivative expansion of the one-loop path integral.},
doi = {10.1007/JHEP08(2017)054},
journal = {Journal of High Energy Physics (Online)},
number = 8,
volume = 2017,
place = {United States},
year = {2017},
month = {8}
}