Extending the Universal OneLoop Effective Action: heavylight coefficients
The Universal OneLoop Effective Action (UOLEA) is a general expression for the effective action obtained by evaluating in a modelindependent way the oneloop expansion of a functional path integral. It can also be used to match UV theories to their lowenergy 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 recentlydeveloped covariant diagram technique to extend the UOLEA to include heavylight terms which retain the same universal structure as the previouslyderived heavyonly 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 oneloop path integral.
 Authors:

^{[1]};
^{[2]};
^{[3]};
^{[1]}
 Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Physics and Michigan Center for Theoretical Physics (MCTP)
 King's College London (United Kingdom). Theoretical Particle Physics and Cosmology Group and Physics Dept.
 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 10298479
 Publisher:
 Springer Berlin
 Research Org:
 Univ. of Michigan, Ann Arbor, MI (United States)
 Sponsoring Org:
 USDOE Office of Science (SC); Deutsches ElektronenSynchrotron (DESY), Hamburg (Germany); Univ. of CambridgeGonville 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 OneLoop Effective Action: heavylight 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 OneLoop Effective Action: heavylight coefficients. United States. doi:10.1007/JHEP08(2017)054.
Ellis, Sebastian A. R., Quevillon, Jérémie, You, Tevong, and Zhang, Zhengkang. 2017.
"Extending the Universal OneLoop Effective Action: heavylight coefficients". United States.
doi:10.1007/JHEP08(2017)054. https://www.osti.gov/servlets/purl/1425648.
@article{osti_1425648,
title = {Extending the Universal OneLoop Effective Action: heavylight coefficients},
author = {Ellis, Sebastian A. R. and Quevillon, Jérémie and You, Tevong and Zhang, Zhengkang},
abstractNote = {The Universal OneLoop Effective Action (UOLEA) is a general expression for the effective action obtained by evaluating in a modelindependent way the oneloop expansion of a functional path integral. It can also be used to match UV theories to their lowenergy 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 recentlydeveloped covariant diagram technique to extend the UOLEA to include heavylight terms which retain the same universal structure as the previouslyderived heavyonly 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 oneloop 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}
}