Precision phenomenology at multi-TeV muon colliders

Abstract

Future lepton colliders, such as those based on linear $e^{+}{e}^{-}$ or circular ${\mu }^{+}{\mu }^{-}$ accelerators, are expected to attain centre-of-mass energies in the multi-TeV range. In this regime the impact of QED and of weak radiation, in both the initial and the final state, can become a leading effect. By employing a general framework presented in a companion paper - suitable for any flavour of colliding leptons - we improve next-to-leading order electroweak predictions by including higher-order contributions, which encompass, but are not limited to, vector-boson-fusion processes. We apply this approach to the study of $t\bar{t}$ and $W^{+}{W}^{-}$ production at a muon collider operating at centre-of-mass energies up to 10 TeV. We show that such an approach, where both QED and weak contributions are included at fixed order, in addition to the all-order resummation of initial-state QED effects, can provide predictions for arbitrary observables in all of the phase space which are precise at the percent level.

48 pages, 18 figures; version accepted for publication

References in corpus (27)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• WHIZARD: Simulating Multi-Particle Processes at LHC and ILC
• Automation of next-to-leading order computations in QCD: the FKS subtraction
• A general approach to jet cross sections in QCD
• One-loop leading logarithms in electroweak radiative corrections, I. Results
• Top-pair production at the LHC through NNLO QCD and NLO EW
• Sudakov Effects in Electroweak Corrections
• Bloch-Nordsieck violating electroweak corrections to inclusive TeV scale hard processes
• Weak corrections to Higgs hadroproduction in association with a top-quark pair
• One-loop leading logarithms in electroweak radiative corrections: II. Factorization of collinear singularities
• Vector boson fusion at multi-TeV muon colliders
• High Energy Leptonic Collisions and Electroweak Parton Distribution Functions
• Fusing Vectors into Scalars at High Energy Lepton Colliders
• Electroweak Splitting Functions and High Energy Showering
• The Effective Vector Boson Approximation in High-Energy Muon Collisions
• Electroweak Sudakov form factors and nonfactorizable soft QED effects at NLC energies
• The partonic structure of the electron at the next-to-leading logarithmic accuracy in QED
• LePDF: Standard Model PDFs for High-Energy Lepton Colliders
• Initial conditions for electron and photon structure and fragmentation functions
• Electroweak Sudakov Logarithms and Real Gauge-Boson Radiation in the TeV Region
• Non-cancellation of electroweak logarithms in high-energy scattering
• Learning from Radiation at a Very High Energy Lepton Collider
• One-loop electroweak Sudakov logarithms: a revisitation and automation
• Standard Model Fragmentation Functions at Very High Energies
• NLO Electroweak Corrections to Multi-Boson Processes at a Muon Collider
• Like-Sign W-Boson Scattering at the LHC -- Approximations and Full Next-to-Leading-Order Predictions
• EW corrections and Heavy Boson Radiation at a high-energy muon collider

Cited by in corpus (1)

• EVAluation of the Equivalent Vector Boson Approximation at highest energy colliders