Optimal New Physics estimation in presence of Standard Model backgrounds

Abstract

In this work, we develop a numerical technique for the optimal estimation of the new physics (NP) couplings applicable to any collider process without any simplifying assumptions. This approach also provides a way to measure the quality of the NP estimates derived using standard ${\chi }^2$ analysis and can be used to gauge the advantages of various modalities of collider design. We illustrate the techniques and arguments by considering the pair production of heavy charged fermions at an $e^{+}{e}^{-}$ collider.

7 pages and 7 figures; minor modifications; accepted for publication in PRD

References in corpus (20)

• Search for Heavy Neutral and Charged Leptons in e+ e- Annihilation at LEP
• Determining the top-antitop and $ZZ$ Couplings of a Neutral Higgs Boson of Arbitrary CP Nature at the NLC
• Prospects of Measuring General Higgs Couplings at e^+e^- Linear Colliders
• Measuring the Higgs-Vector boson Couplings at Linear $e^{+}{e}^{-}$ Collider
• Minimal Vector-like leptonic Dark Matter and Signatures at the LHC
• Optimal-Observable Analysis of the Angular and Energy Distributions for Top-Quark Decay Products at Polarized Linear Colliders
• Determining the relative size of the CP-even and CP-odd Higgs Boson Couplings to a Fermion at the LHC
• Four-Fermi Effective Operators in Top-Quark Production and Decay
• Studying possible CP-violating Higgs couplings through top-quark pair productions at muon colliders
• Probing Top-Quark Couplings at Polarized NLC
• Probing anomalous $ZZ\gamma$ and $Z\gamma \gamma$ Couplings at the $e^{+}{e}^{-}$ Colliders using Optimal Observable Technique
• CP-Violating Lepton-Energy Correlation in e\bar{e}\to t\bar{t}
• Testing Top-Quark Yukawa Interactions in e+ e- -> t \bar{t} Z
• Probing heavy charged fermions at $e^{+}{e}^{-}$ collider using the Optimal Observable Technique
• Optimal-Observable Analysis of Possible New Physics Using the b-quark in gamma gamma -> tt -> bX
• Optimal Beam Polarizations for New-Physics Search through gamma gamma -> t tbar -> lX/bX
• Optimal estimation of Dimension-8 Neutral Triple Gauge Couplings at $e^{+}{e}^{-}$ Colliders
• Probing flavor constrained SMEFT operators through $tc$ production at the Muon collider
• Optimal determination of New Physics couplings: A comparative study
• Exploring Optimal Sensitivity of Lepton Flavor Violating Effective Couplings at the $e^{+}{e}^{-}$ Colliders