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Functional prescription for EFT matching

Cohen, Timothy and Lu, Xiaochuan and Zhang, Zhengkang (2021) Functional prescription for EFT matching. Journal of High Energy Physics, 2021 (2). Art. No. 228. ISSN 1126-6708. doi:10.1007/JHEP02(2021)228.

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We simplify the one-loop functional matching formalism to develop a streamlined prescription. The functional approach is conceptually appealing: all calculations are performed within the UV theory at the matching scale, and no prior determination of an Effective Field Theory (EFT) operator basis is required. Our prescription accommodates any relativistic UV theory that contains generic interactions (including derivative couplings) among scalar, fermion, and vector fields. As an example application, we match the singlet scalar extended Standard Model (SM) onto SMEFT.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Cohen, Timothy0000-0002-7040-3038
Lu, Xiaochuan0000-0001-8821-2574
Zhang, Zhengkang0000-0001-8305-5581
Additional Information:© 2021 The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Article funded by SCOAP3. Received: November 19, 2020; Revised: January 13, 2021; Accepted: January 19, 2021; Published: February 26, 2021. We are very grateful to Dave Sutherland for detailed comments on the draft. X.L. is grateful to Brian Henning and Hitoshi Murayama for fruitful discussions on CDE and functional matching. Z.Z. has likewise benefited from collaboration with Sebastian Ellis, Jérémie Quevillon, Pham Ngoc Hoa Vuong and Tevong You on several past works on functional matching. T.C. and X.L. are supported by the U.S. Department of Energy, under grant number DE-SC0011640. The work of Z.Z. was supported in part by the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Award Number DEAC02-05CH11231.
Group:Walter Burke Institute for Theoretical Physics
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0011640
Department of Energy (DOE)DE-AC02-05CH11231
Subject Keywords:Beyond Standard Model, Effective Field Theories
Other Numbering System:
Other Numbering System NameOther Numbering System ID
CALT-TH 2020-047
Issue or Number:2
Record Number:CaltechAUTHORS:20201111-132714701
Persistent URL:
Official Citation:Cohen, T., Lu, X. & Zhang, Z. Functional prescription for EFT matching. J. High Energ. Phys. 2021, 228 (2021).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106625
Deposited By: Joy Painter
Deposited On:11 Nov 2020 22:17
Last Modified:16 Nov 2021 18:55

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