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Title: Validity of standard model EFT studies of VH and VV production at NLO

Journal Article · · Physical Review D
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [4]; ORCiD logo [5]
  1. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Stony Brook Univ., NY (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Kansas, Lawrence, KS (United States)
  5. Univ. of Kansas, Lawrence, KS (United States)

The production of $W^±H, ZH, W^+W^-$, and $W^±Z$ pairs probes non-Standard-Model interactions of quarks, gauge bosons, and the Higgs boson. New effects can be parameterized in terms of an effective field theory (EFT) where the Lagrangian is expanded in terms of higher-dimension operators suppressed by increasing powers of a high scale Λ. We examine the importance of including next-to-leading-order QCD corrections in global fits to the coefficients of the EFT. The numerical implications on the fits due to different approaches to enforcing the validity of the EFT are quantified. We pay particular attention to the dependence of the fits on the ex-pansion in 1/Λ2 since the differences between results calculated at $$\mathcal{O}$$(1/Λ2) and $$\mathcal{O}$$(1/Λ4) may give insight into the possible significance of dimension-8 effects.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS); National Science Foundation (NSF); State of Kansas
Grant/Contract Number:
SC0012704; SC0017988; SC0014664
OSTI ID:
1616432
Alternate ID(s):
OSTI ID: 1631404; OSTI ID: 1772010; OSTI ID: 1772014
Report Number(s):
BNL--215881-2020-JAAM; {"","Journal ID: ISSN PRVDAQ","Journal ID: ISSN 2470-0010"}
Journal Information:
Physical Review D, Journal Name: Physical Review D Journal Issue: 11 Vol. 101; ISSN PRVDAQ; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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