Top and beauty synergies in SMEFT-fits at present and future colliders

  title={Top and beauty synergies in SMEFT-fits at present and future colliders},
  author={Stefan Bissmann and Cornelius Grunwald and Gudrun Hiller and Kevin Kroninger},
  journal={Journal of High Energy Physics},
Abstract We perform global fits within Standard Model Effective Field Theory (SMEFT) combining top-quark pair production processes and decay with b → s flavor changing neutral current transitions and Z → $$ b\overline{b} $$ b b ¯ in three stages: using existing data from the LHC and B-factories, using projections for the HL-LHC and Belle II, and studying the additional new physics impact from a future lepton collider. The latter is ideally suited to directly probe ℓ+ℓ− → $$ t\overline… 
Framing energetic top-quark pair production at the LHC
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A reduced basis for CP violation in SMEFT at colliders and its application to diboson production
Abstract We show that only 10 (17) CP-odd operators of the SMEFT give the leading, i.e. least suppressed by the new physics scale, CP-violating contributions once we assume that all fermions are
A sensitivity study of VBS and diboson WW to dimension-6 EFT operators at the LHC
Abstract We present a parton-level study of electro-weak production of vector-boson pairs at the Large Hadron Collider, establishing the sensitivity to a set of dimension-six operators in the
Adding Flavor to the SMEFT
We study the flavor structure of the lepton and baryon number–conserving dimension-6 operators in the Standard Model effective field theory (SMEFT). Building on the work of [1], we define several
Energy correlation of bottom quarks from decays of top quarks in electron-positron annihilation
Joint energy distribution of the bottom quark and antiquark from decays of the top quark and antiquark produced in the reaction $e^+ e^- \to t \bar{t}$ is studied. Main emphasis is put on
Flavorful electroweak precision observables in the Standard Model effective field theory
Abstract Electroweak precision observables (EWPO) measured at the W and Z poles provide stringent limits on possible beyond the Standard Model physics scenarios. In an effective field theory (EFT)
Search for charged-lepton flavor violation in top quark production and decay in pp collisions at $\sqrt{s}$ = 13 TeV
Results are presented from a search for charged-lepton flavor violating (CLFV) interactions in top quark production and decay in pp collisions at a center-of-mass energy of 13 TeV. The events are
The top quark electro-weak couplings after LHC Run 2
Abstract Recent measurements at the Large Hadron Collider allow for a robust and precise characterisation of the electro-weak interactions of the top quark. We present the results of a global
Differential cross section measurements of W±γ production in proton-proton collisions at √ s = 13 TeV are presented. The data set used in this study was collected with the CMS detector at the CERN
Interplay of dineutrino modes with semileptonic rare B-decays
<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>We present a systematic global analysis of dineutrino modes <jats:italic>b →


  • Phys. J. C 76, 432
  • 2016
HFLAV) (2019), updated results and plots available at, 1909.12524
  • 1909
  • Phys. J. C 80, 136
  • 2020
  • 168
  • 2018
Belle-II), PTEP 2019
  • PTEP
  • 2020
  • 7, Addendum
  • 2019
  • 005
  • 2018
  • 079
  • 2014
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