Probing CP-violation at colliders through interference effects in diboson production and decay

Abstract

We define a CP-asymmetric observable that is sensitive to CP-violating interactions in the gauge-boson sector. We illustrate the utility of this observable by studying how well the LHC can measure the coefficient of a particular dimension-six WWZ operator. We find that sensitivity at the 10^{-3} level is possible at the LHC with 100 fb^{-1} of integrated luminosity, which would greatly exceed the sensitivity achieved at LEP, and would rival or may even better the indirect sensitivities inferred from related operators constrained by electric dipole moment experiments.

4 pages, 1 figure, LaTeX

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Cited by in corpus (10)

• Measurement of $W^{\pm }Z$ production cross sections and gauge boson polarisation in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Genuine CP-odd Observables at the LHC
• CP-odd correlations using jet momenta from tt_bar events at the Tevatron
• A Reduced basis for CP violation in SMEFT at colliders and its application to Diboson production
• Constraining SMEFT operators with associated $h\gamma$ production in Weak Boson Fusion
• Constraining CP violating operators in charged and neutral triple gauge couplings
• On LHC searches for CP-violating, dimension-6 electroweak gauge boson operators
• CP violating anomalous couplings in $W\gamma$ and $Z\gamma$ production at the LHC
• Scrutinizing the ZW+W- vertex at the Large Hadron Collider at 7 TeV
• Comparison of electric dipole moments and the Large Hadron Collider for probing CP violation in triple boson vertices