Search for New Physics via Single Top Production at the LHC

Abstract

We consider single-top production as a probe for new physics effects at the Large Hadron Collider (LHC). We argue that for natural theories a small deviation from the Standard Model tree-level couplings in this reaction can be parameterized by 3 higher dimension operators. Precision measurement of these effective couplings in the single-top events, via studying their interference effects with the SM contributions, can discriminate several new physics models. In particular, combining the production rate of three single-top production modes will provide a severe test of the Little Higgs model with T-parity. We find that at the LHC, a 5% accuracy in the measurement of the single-top cross sections would probe the new physics scale up to about $3\mathrm{TeV}$.

arXiv commentversion to appear in Physics Letters B

References in corpus (28)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• TeV Symmetry and the Little Hierarchy Problem
• Weak Radiative B-Meson Decay Beyond Leading Logarithms
• Little Hierarchy, Little Higgses, and a Little Symmetry
• Uncertainties of predictions from parton distribution functions II: the Hessian method
• Single Top Production as a Window to Physics Beyond the Standard Model
• The fully differential single-top-quark cross section in next-to-leading order QCD
• Patterns of Deviation from the Standard Model
• T Parity and the Littlest Higgs
• Uncertainties of Predictions from Parton Distribution Functions I: the Lagrange Multiplier Method
• Single top production and decay at next-to-leading order
• Single-top production in MC@NLO
• Understanding single-top-quark production and jets at hadron colliders
• Next-to-leading order corrections to Wt production and decay
• Effects of genuine dimension-six Higgs operators
• Electroweak effective lagrangians
• Evidence for production of single top quarks and first direct measurement of |Vtb|
• Next-to-Leading Order Corrections to Single Top Quark Production and Decay at the Tevatron: 2. $t$-channel Process
• Analysis of tbW and ttZ couplings from CLEO and LEP/SLC data
• Fully differential W' production and decay at next-to-leading order in QCD
• Single Top Quark Production and Decay at Next-to-leading Order in Hadron Collision
• Next-to-Leading Order Corrections to Single Top Quark Production and Decay at the Tevatron: 1. s-channel Process
• Improved Measurement of ttZ Couplings at the LHC
• Anomalous Couplings of the Third Generation in Rare B Decays
• Single top production in the $t$-channel at LHC: a realistic test of electroweak models
• Search for W' boson production in the W'->tb decay channel
• Search for new physics via single top production at TeV energy $e\gamma$ colliders

Cited by in corpus (79)

• Single-top Wt-channel production matched with parton showers using the POWHEG method
• NLO single-top production matched with shower in POWHEG: s- and t-channel contributions
• The Standard Model as an Effective Field Theory
• Single-top t-channel hadroproduction in the four-flavour scheme with POWHEG and aMC@NLO
• Effective-Field-Theory Approach to Top-Quark Production and Decay
• Observation of the associated production of a single top quark and a W boson in pp collisions at sqrt(s) = 8 TeV
• Constraining top quark effective theory in the LHC Run II era
• Effective four-fermion operators in top physics: a roadmap
• Evidence for associated production of a single top quark and W boson in pp collisions at sqrt(s) = 7 TeV
• W polarisation beyond helicity fractions in top quark decays
• Anomalous Wtb coupling effects in the weak radiative B-meson decay
• A global fit of top quark effective theory to data
• Isolating Wt production at the LHC
• Evidence for single top-quark production in the $s$-channel in proton-proton collisions at $\sqrt{s}=$8 TeV with the ATLAS detector using the Matrix Element Method
• Single Top Production at Next-to-Leading Order in the Standard Model Effective Field Theory
• Measurement of the production cross-section of a single top quark in association with a $W$ boson at 8 TeV with the ATLAS experiment
• Single top quark production and decay in the t-channel at next-to-leading order at the LHC
• Effective field theory approach to top-quark decay at next-to-leading order in QCD
• Measurement of the cross-section for producing a $W$ boson in association with a single top quark in $pp$ collisions at $\sqrt{s}=13$ TeV with ATLAS
• Constraints on Non-standard Top Quark Couplings
• The "Top Priority" at the LHC
• A General Analysis of Wtb anomalous Couplings
• Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Top polarisation studies in $H^{-}t$ and $Wt$ production
• The Top Quark Decay Vertex in Standard Model Extensions
• Enhanced $thj$ signal at the LHC with $h\to \gamma \gamma$ decay and $\mathcal{C}\mathcal{P}$-violating top-Higgs coupling
• Single top and Higgs associated production at the LHC
• New directions for top quark polarization in the $t$-channel process
• Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider
• Next-to-leading order QCD corrections to s-channel single top quark production and decay at the LHC
• Constraints on the Wtb vertex from early LHC data
• Off-shell effects for t-channel and s-channel single-top production at NLO in QCD
• Impact of Single-Top Measurement to Littlest Higgs Model with T-Parity
• Effective Field Theory for Nonstandard Top Quark Couplings
• Single top partner production in the Higgs to diphoton channel in the Littlest Higgs Model with $T$-parity
• Studying the $Wtb$ vertex structure using recent LHC results
• Top quark physics at the LHC
• New limits on anomalous contributions to the $Wtb$ vertex
• Determining $V_{tb}$ at Electron-Positron Colliders
• Anomalous Top Couplings at Hadron Colliders Revisited
• s-channel Single Top Quark Production and Decay at NNLO in QCD
• Calculation of W b bbar Production via Double Parton Scattering at the LHC
• Off-shell single-top-quark production in the Standard Model Effective Field Theory
• Probing anomalous $Wtb$ couplings at the LHC in single top quark production through $t$-channel
• Production and Decays of $W_R$ bosons at the LHC
• Probing the top-Higgs boson FCNC couplings via the $h\to \gamma \gamma$ channel at the HE-LHC and FCC-hh
• Searches for top-Higgs FCNC couplings via the Whj signal with $h\to \gamma \gamma$ at the LHC
• Understanding Single Tops using Jets
• Combinations of single-top-quark production cross-section measurements and $|f_{\mathrm{LV}}{V}_{tb}|$ determinations at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS experiments
• Precise predictions for single-top production: the impact of EW corrections and QCD shower on the t-channel signature
• Measurement of single top-quark production in association with a $W$ boson in the single-lepton channel at $\sqrt{s}=8$ TeV with the ATLAS detector
• Effective Field Theory in the top sector: do multijets help?
• Full analysis of general non-standard tbW couplings
• Transverse Momentum Resummation for $s$-channel single top quark production at the LHC
• Limits on the anomalous $Wtq$ couplings
• MEtop - a generator for single top production via FCNC interactions
• New physics contributions to the forward-backward asymmetry at the Tevatron
• MINLO t-channel single-top plus jet
• Observation of tW production in the single-lepton channel in pp collisions at $\sqrt{s}$ = 13 TeV
• tbW vertex in the Littlest Higgs Model with T-parity
• Anomalous top charged-current contact interactions in single top production at the LHC
• Polarization of top quark in vector-like quark decay
• Measurement of inclusive and differential cross sections for single top quark production in association with a W boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Effective Field Theory for Top Quark Physics
• Climbing to the Top of the ATLAS 13 TeV data
• Model-Independent Constraints on Lepton-Flavor-Violating Decays of the Top Quark
• Measurement of single top-quark production in association with a $W$ boson in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Single Top Quark Production with and without a Higgs Boson
• Probing anomalous top-Higgs couplings at the HL-LHC via $H\to W{W}^{\ast }$ decay channels
• Top quark theory review for the Tevatron, LHC, and ILC
• Measurement of inclusive and differential cross sections of single top quark production in association with a W boson in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV
• Experimental Studies of Top Quark Production
• The Impact of Kaluza-Klein Excited W Boson on the Single Top at LHC and Comparison with other Models
• Top quark physics in the Large Hadron Collider era
• Measurement of single top-quark production in the s-channel in proton$-$proton collisions at $\sqrt{\mathrm{s}}=13$ TeV with the ATLAS detector
• Unparticle Effects on Top Quark Pair Production at Photon Collider
• A Global Analysis of the Standard Model Effective Field Theory in the Production and Decay Channels of a Single Top Quark
• Probing top quark anomalous moments in $W$ boson associated single top quark production at the LHC using polarization and spin correlation
• LHC Sensitivity to Wbb Production via Double Parton Scattering