FCNC top quark production via anomalous tqV couplings beyond leading order

Abstract

We calculate flavor-changing neutral-current (FCNC) processes involving top-quark production via anomalous tqV couplings at the Tevatron and HERA colliders. We cover the FCNC processes p pbar -> t Z, p pbar -> t gamma, p pbar -> t t, and e p -> e t. We go beyond leading order and include the effects of soft-gluon corrections through next-to-next-to-leading order. We demonstrate the stabilisation of the cross section with respect to the variation of QCD scale, and we investigate the reach of the Tevatron and HERA colliders.

arXiv comment20 pages, 10 figures; several additions, changes, and corrections to text and figures; references added

References in corpus (51)

• Topcolor Assisted Technicolor
• Uncertainties of predictions from parton distributions. I: experimental errors
• Phenomenology of Two Higgs Doublet Models with Flavor Changing Neutral Currents
• Resummation for QCD Hard Scattering
• Single Top Production as a Window to Physics Beyond the Standard Model
• Evolution of Color Exchange in QCD Hard Scattering
• Resummation of Threshold Corrections for Single-Particle Inclusive Cross Sections
• Effects of Higher-Order Threshold Corrections in High-E_T Jet Production
• Flavor Changing Scalar Interactions
• New Supersymmetric Contributions to $t->cV$
• Flavour Changing Neutral Currents, Weak-Scale Scalars and Rare Top Decays
• Quark Singlets: Implications and Constraints
• A Heavy Top Quark and the $Zb\bar{b}$ Vertex in Non-Commuting Extended Technicolor
• Single top quarks at the Fermilab Tevatron
• Constraints on top couplings in models with exotic quarks
• Top-Quark Decay Via Flavor-Changing Neutral Currents at Hadron Colliders
• Sudakov Resummation and Finite Order Expansions of Heavy Quark Hadroproduction Cross Sections
• Constraining Anomalous Top Quark Couplings at the Tevatron
• Top-Charm Associated Production in High Energy $e^{+}{e}^{-}$ Collisions
• Single Top Quark Production via FCNC Couplings at Hadron Colliders
• Search for single-top production in ep collisions at HERA
• Search for Single Top Production at LEP
• Direct Top Quark Production at Hadron Colliders as a Probe of New Physics
• High-order corrections and subleading logarithms for top quark production
• Searching for $t\to cg$ at the Fermilab Tevatron
• Top-Charm Strong Flavor-Changing Neutral Currents at the Tevatron
• Probing the Chromoelectric and Chromomagnetic dipole moments of the Top quark at Hadronic Colliders
• Anomalous t-c-g coupling: The connection between single top production and top decay
• R-parity-violating SUSY effects and signals in single top production at the Tevatron
• Soft-gluon resummation and NNLO corrections for direct photon production
• Single-top-squark production via R-parity-violating supersymmetric couplings in hadron collisions
• Multilepton production via top flavour-changing neutral couplings at the CERN LHC
• Effects of Top Compositeness
• Zt and γt production via top flavour-changing neutral couplings at the Fermilab Tevatron
• New Gauge Interactions and Single Top Quark Production
• Top-Charm Associated Production at High Energy e^+e^- Colliders in Standard Model
• Single top quark production as a probe of R-parity-violating SUSY at pp and p\bar p colliders
• Flavor changing single top quark production channels at e^+e^- colliders in the effective Lagrangian description
• Single Top Quark Production as a Probe for Anomalous Moments at Hadron Colliders
• Resummation for heavy quark and jet cross sections
• Effects Of Kaluza-Klein Excited W On Single Top Quark Production At Tevatron
• CP Violation In Single Top Production And Decay Via p p-bar -> t b-bar +X -> W^+ b b-bar +X Within The MSSM: A Possible Application For Measuring \arg(A_t) At Hadron Colliders
• QCD corrections to FCNC single top production at HERA
• Single top production at the LHC as a probe of R parity violation
• New Third-family Flavor Physics: Vertex Corrections
• Probing Anomalous Wtb Coupling via Single Top Production at TeV Energy $\gamma$ e Colliders
• Searching for an anomalous $\bar{t}q\gamma$ coupling via single top quark production at a $\gamma \gamma$ collider
• Polarized Single Top Production at Leptonic Colliders from Broken R Parity Interactions Incorporating CP Violation
• A Top Quark Soliton and its Anomalous Chromomagnetic Moment
• Single top Quark Production in e-gamma Collisions and Testing Technicolor Models
• Single Top from Technipion Production

Cited by in corpus (29)

• Single top quark production at the Tevatron: threshold resummation and finite-order soft gluon corrections
• A global approach to top-quark flavor-changing interactions
• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Higher-order soft gluon corrections in single top quark production at the LHC
• Next-to-next-to-next-to-leading-order soft-gluon corrections in hard-scattering processes near threshold
• Probe Anomalous $tq\gamma$ couplings through Single Top Photoproduction at the LHC
• Probing the Anomalous FCNC Interactions in Top-Higgs Final State and Charge Ratio Approach
• Charged Higgs production via bg -> tH- at the LHC
• Soft anomalous dimensions for single-top production at three loops
• Combined effects of strong and electroweak FCNC effective operators in top quark physics at the LHC
• FCNC production of same sign Top quark pairs at the LHC
• Next-to-leading order QCD corrections to $tZ$ associated production via the flavor-changing neutral-current couplings at hadron colliders
• Next-to-leading order QCD corrections to the top quark decay via the Flavor-Changing Neutral-Current operators with mixing effects
• Higher-order corrections for $tZ$ production via anomalous couplings
• New flavor physics in di- and tri-lepton events from single-top at the LHC and beyond
• Soft-gluon corrections in top-quark production
• Next-to-leading order QCD corrections to the top quark associated with $\gamma$ production via model-independent flavor-changing neutral-current couplings at hadron colliders
• Associated production of a top quark with a photon via anomalous couplings
• Limits on the anomalous $Wtq$ couplings
• Soft anomalous dimensions and resummation in QCD
• Observation of Single Top Quark Production
• Soft-gluon corrections for $tqZ$ production
• Probing the anomalous $tq\gamma$ couplings through single top production at the future lepton-hadron colliders
• Soft-Gluon Corrections in FCNC Top-Quark Production via Anomalous Gluon Couplings
• $t{Z}^{\prime }$ production at hadron colliders
• Top-pions and single top production at HERA and THERA
• Single-top and top-antitop cross sections
• The littlest Higgs model with T-parity and single top production at $ep$ collision
• The single t-quark productions via the flavor-changing processes in the topcolor-assisted technicolor model at the hadron colliders