NLO effects in EFT fits to W+W- production at the LHC

Baglio, Julien; Dawson, Sally; Lewis, Ian M.

doi:10.1103/PhysRevD.99.035029

Title: NLO effects in EFT fits to $W^{+} W^{-}$ production at the LHC

Journal Article · Wed Feb 20 00:00:00 EST 2019 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.99.035029· OSTI ID:1495487

Baglio, Julien; Dawson, Sally; Lewis, Ian M.

We study the impact of anomalous gauge boson and fermion couplings on the production of W⁺W^- pairs at potential future LHC upgrades and estimate the sensitivity at $$\sqrt{S}$$ = 14 TeV with 3 ab^-1 and $$\sqrt{S}$$ = 27 TeV with 15 ab^-1. A general technique for including NLO QCD effects in effective field theory (EFT) fits to kinematic distributions is presented, and numerical results are given for $$\sqrt{S}$$ = 13 TeV W⁺W^- production. Our method allows fits to anomalous couplings at NLO accuracy in any EFT basis and has been implemented in a publicly available version of the POWHEG-BOX. Analytic expressions for the K-factors relevant for 13 TeV total cross sections are given for the HISZ and Warsaw EFT bases and differential K-factors can be obtained using the supplemental material. Our study demonstrates the necessity of including anomalous Z-fermion couplings in the extraction of limits on anomalous 3-gauge-boson couplings.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States); Univ. of Kansas, Lawrence, KS (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: SC0012704; SC0017988; INST 39/963-1 FUGG

OSTI ID:: 1495487

Alternate ID(s):: OSTI ID: 1492787; OSTI ID: 1630740

Report Number(s):: BNL-210928-2019-JAAM; PRVDAQ; 035029

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Vol. 99 Journal Issue: 3; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 35 works

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