Anomalous top charged-current contact interactions in single top production at the LHC
arXiv:1407.2546 · doi:10.1103/PhysRevD.90.074022
Abstract
In an effective theory approach, the full minimal set of leading contributions to anomalous charged-current top couplings comprises various new trilinear tbW as well as quartic tbff' interaction vertices, some of which are related to one another by equations of motion. While much effort in earlier work has gone into the extraction of the trilinear couplings from single top measurements, we argue in this article that these structures can be assessed independently by other observables, while single top production forms a unique window to the four-fermion sector. An effective theory approach is employed to infer and classify the minimal set of such couplings from dimension six operators in the minimal flavor violation scheme. In the phenomenological analysis, we present a Monte Carlo study at detector level to quantify the expected performance of the next LHC run to bound as well as distinguish the various contact couplings. Special attention is directed toward differential final state distributions including detector effects as a means to optimize the signal sensitivity as well as the discriminative power with respect to the possible coupling structures.
arXiv comment33 pages, 10 figures. Published version
References in corpus (58)
- Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
- Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
- PYTHIA 6.4 Physics and Manual
- PYTHIA 6.2 Physics and Manual
- New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
- DELPHES 3, A modular framework for fast simulation of a generic collider experiment
- Dimension-Six Terms in the Standard Model Lagrangian
- Minimal Flavour Violation: an effective field theory approach
- WHIZARD: Simulating Multi-Particle Processes at LHC and ILC
- Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
- Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
- Evidence for the spin-0 nature of the Higgs boson using ATLAS data
- NNLL resummation for s-channel single top quark production
- Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC
- Universal Unitarity Triangle and Physics Beyond the Standard Model
- Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
- A minimal set of top anomalous couplings
- A Higher Order Perturbative Parton Evolution Toolkit (HOPPET)
- Patterns of Deviation from the Standard Model
- Top quark pair production and decay at hadron colliders
- Reduced Effective Lagrangians
- Measurement of the top quark-pair production cross section with ATLAS in pp collisions at $\sqrt{s}=7\TeV$
- Understanding single-top-quark production and jets at hadron colliders
- Measurement of the single-top-quark t-channel cross section in pp collisions at sqrt(s) = 7 TeV
- A minimal set of top-Higgs anomalous couplings
- Measurement of the t-channel single top-quark production cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
- Single top quark production at LHC with anomalous Wtb couplings
- Observation of the associated production of a single top quark and a W boson in pp collisions at sqrt(s) = 8 TeV
- Effective four-fermion operators in top physics: a roadmap
- QCD-corrected spin analysing power of jets in decays of polarized top quarks
- Measurement of the t-channel single top quark production cross section in pp collisions at sqrt(s) = 7 TeV
- Measurement of the t-channel single-top-quark production cross section and of the |Vtb| CKM matrix element in pp collisions at sqrt(s) = 8 TeV
- Evidence for the associated production of a W boson and a top quark in ATLAS at sqrt(s) = 7 TeV
- Dimension-six CP-conserving operators of the third-family quarks and their effects on collider observables
- Probing anomalous Wtb couplings in top pair decays
- V-a Tests Through Leptons from Polarised Top Quarks
- Profiles of the Unitarity Triangle and CP-Violating Phases in the Standard Model and Supersymmetric Theories
- Evidence for associated production of a single top quark and W boson in pp collisions at sqrt(s) = 7 TeV
- Search for New Physics via Single Top Production at the LHC
- W polarisation beyond helicity fractions in top quark decays
- Measurement of the W boson polarization in top quark decays with the ATLAS detector
- Measurement of the t t-bar production cross section and the top quark mass in the dilepton channel in pp collisions at sqrt(s) =7 TeV
- Radiative corrections to $b\to cτ\batν_τ$
- Single Top Quark Production at the LHC: Understanding Spin
- Probing Anomalous Top-Quark Couplings Induced by Dim.6 Operators at Photon Colliders
- Measurement of the cross section for top-quark pair production in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector using final states with two high-pt leptons
- Observation of s-channel production of single top quarks at the Tevatron
- Dimension-six CP-violating operators of the third-family quarks and their effects at colliders
- Measurement of the top quark pair cross section with ATLAS in pp collisions at sqrt(s) = 7 TeV using final states with an electron or a muon and a hadronically decaying tau lepton
- Top Quark Physics
- Measurement of the Top-antitop Production Cross Section in pp Collisions at sqrt(s)=7 TeV using the Kinematic Properties of Events with Leptons and Jets
- Measurement of the top quark pair production cross section in pp collisions at sqrt(s) = 7 TeV in dilepton final states containing a tau
- Evidence for s-channel single top quark production in collisions at = 1.96 TeV
- Off-shell effects for t-channel and s-channel single-top production at NLO in QCD
- Evidence for -channel Single-Top-Quark Production in Events with one Charged Lepton and two Jets at CDF
- Anomalous Top Couplings at Hadron Colliders Revisited
- Effects of Non-Standard Interactions for the Energy Spectrum of Secondary Leptons in e^+e^- --> t t-bar
- Effective lagrangian description of top production and decay
Cited by in corpus (7)
- The Standard Model as an Effective Field Theory
- Extending the Standard Model Effective Field Theory with the Complete Set of Dimension-7 Operators
- EFTfitter---A tool for interpreting measurements in the context of effective field theories
- A General Analysis of Wtb anomalous Couplings
- Limits on the anomalous couplings
- Top Physics in WHIZARD
- Top-Quark Physics at the LHC