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Title: Standard model EFT corrections to Z boson decays

Abstract

Here, we compute the one-loop corrections to Z decay properties from dimension-six operators in the Standard Model effective field theory (SMEFT) that contribute also to anomalous 3-gauge boson couplings and examine the relative sensitivity of the two processes to the anomalous couplings. The size of the contributions is of order a few percent, of the same size as Standard Model electroweak corrections. This is part of a program of computing electroweak quantities to one-loop in the SMEFT: these calculations are needed for a future global fit to limit the coefficients of the dimension-six Wilson coefficients consistently at one-loop.

Authors:
 [1];  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Univ. of Pittsburgh, Pittsburgh, PA (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1481331
Alternate Identifier(s):
OSTI ID: 1482087
Report Number(s):
BNL-209433-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:  
SC0012704; SC0015634
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 98; Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; SMEFT; SM; LHC; higgs; boson; decay; one-loop; vertices

Citation Formats

Dawson, Sally, and Ismail, Ahmed. Standard model EFT corrections to Z boson decays. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.093003.
Dawson, Sally, & Ismail, Ahmed. Standard model EFT corrections to Z boson decays. United States. doi:10.1103/PhysRevD.98.093003.
Dawson, Sally, and Ismail, Ahmed. Thu . "Standard model EFT corrections to Z boson decays". United States. doi:10.1103/PhysRevD.98.093003.
@article{osti_1481331,
title = {Standard model EFT corrections to Z boson decays},
author = {Dawson, Sally and Ismail, Ahmed},
abstractNote = {Here, we compute the one-loop corrections to Z decay properties from dimension-six operators in the Standard Model effective field theory (SMEFT) that contribute also to anomalous 3-gauge boson couplings and examine the relative sensitivity of the two processes to the anomalous couplings. The size of the contributions is of order a few percent, of the same size as Standard Model electroweak corrections. This is part of a program of computing electroweak quantities to one-loop in the SMEFT: these calculations are needed for a future global fit to limit the coefficients of the dimension-six Wilson coefficients consistently at one-loop.},
doi = {10.1103/PhysRevD.98.093003},
journal = {Physical Review D},
number = 9,
volume = 98,
place = {United States},
year = {Thu Nov 08 00:00:00 EST 2018},
month = {Thu Nov 08 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.98.093003

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