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Title: Putting standard model EFT fits to work

Journal Article · · Physical Review. D.
ORCiD logo [1];  [2];  [3]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Stony Brook Univ., NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Kansas, Lawrence, KS (United States)

The Standard Model Effective Field Theory (SMEFT) provides a consistent framework for comparing precision measurements at the LHC to the Standard Model. The observation of statistically significant non-zero SMEFT coefficients would correspond to physics beyond the Standard Model (BSM) of some sort. A more difficult question to answer is what, if any, detailed information about the nature of the underlying high scale model can be obtained from these measurements. In this work, we consider the patterns of SMEFT operators present in five example models and discuss the assumptions inherent in using global fits to make BSM conclusions. We find that including renormalization group effects has a significant impact on the interpretation of the results. As a by-product of our study, we present an up-dated global fit to SMEFT coefficients in the Warsaw basis including some next-to-leading order QCD corrections in the SMEFT theory.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); USDOE
Grant/Contract Number:
SC0012704; PHY-1915093; SC0014664
OSTI ID:
1661700
Alternate ID(s):
OSTI ID: 1679956
Report Number(s):
BNL-219970-2020-JAAM; TRN: US2204026
Journal Information:
Physical Review. D., Vol. 102, Issue 5; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (4)

SMEFT analysis of vector boson scattering and diboson data from the LHC Run II journal June 2021
Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory text January 2020
SMEFTsim 3.0 -- a practical guide text January 2020
EFT Diagrammatica: UV Roots of the CP-conserving SMEFT preprint January 2021

Figures / Tables (14)