Flavor changing Z' couplings at the LHC

Abstract

Models with a non-universal Z' exhibit in general flavor changing neutral currents (FCNC) at tree-level. When the Z' couplings favor the third generation, flavor changing transitions of the form Z'tc and Z'tu could be large enough to be observable at the LHC. In this paper we explore this possibility using the associated production of a single top-quark with the Z' and find that integrated luminosities of a few hundred fb${}^{-1}$ are necessary to probe the interesting region of parameter space.

12 LaTeX Pages, 10 EPS Figures

References in corpus (25)

• MadGraph/MadEvent v4: The New Web Generation
• The Physics of Heavy Z' Gauge Bosons
• Automatic Generation of Tree Level Helicity Amplitudes
• CompHEP 4.4 - Automatic Computations from Lagrangians to Events
• Flavor Changing Effects in Theories with a Heavy Z' Boson with Family Non-Universal Couplings
• Top-Quark Decay Via Flavor-Changing Neutral Currents at Hadron Colliders
• $b\to s$ Transitions in Family-dependent $U(1{)}^{\prime }$ Models
• Family Non-universal $U(1{)}^{\prime }$ Gauge Symmetries and $b\to s$ Transitions
• $B_s-{\bar{B}}_s$ Mixing constraints on FCNC and a non-universal $Z^{\prime }$
• Single Top-Quark Production in Flavor-Changing Z' Models
• Flavor Changing Effects in Family Nonuniversal Z' Models
• The $Z\to b\bar{b}$ Decay Asymmetry and Left-Right Models
• B_s^0 - \bar{B}_s^0 Mixing in Leptophobic Z^\prime Model
• K+ -> pi+ nu nu(bar) and FCNC from non-universal Z' bosons
• Dimension six FCNC operators and top production at the LHC
• Explaining B \to K pi anomaly with non-universal Z' boson
• $A_{FB}^b$ and $R_b$ at LEP and New Right-Handed Gauge Bosons
• Hadron Collider Signatures for New Interactions of Top and Bottom Quarks
• $D-\bar{D}$ mixing constraints on FCNC with a non-universal $Z^{\prime }$
• B_s^0-\bar{B}_s^0 mixing and B -> πK decays in stringy leptophobic Z^\prime
• Ansatz for small FCNC with a non-universal $Z^{\prime }$
• Probing New Physics from Top Quark FCNC Processes at LHC: A Mini Review
• The Constraint on FCNC Coupling of the Top Quark with a Gluon from ep Collisions
• Flavorful $Z^{\prime }$ signatures at LHC and ILC
• Implications of $D^0-\overline{D^0}$ on the rare top quark decays $t\to u\gamma$ and $t\to ug$

Cited by in corpus (12)

• On Models of New Physics for the Tevatron Top A_FB
• Light Z' Bosons at the Tevatron
• Z' Mediated Dark Matter Models for the Galactic Center Gamma-Ray Excess
• Searching for Top Flavor Violating Resonances
• The Top Forward Backward Asymmetry with general Z ' couplings
• Contributions to $ZZ{V}^{\ast }$ ($V=\gamma ,Z,Z^{\prime }$) couplings from $CP$ violating flavor changing couplings
• Search for $t{Z}^{\prime }$ associated production induced by $tc{Z}^{\prime }$ couplings at the LHC
• Top Quark Forward-Backward Asymmetry and Anomalous Right-Handed Charge Currents
• Same-sign top pair plus $W$ production in flavor changing vector and scalar models
• Top FCNC induced by a Z' boson
• Azimuthal decorrelation in $t\bar{t}$ production at hadron colliders
• Tau lepton charge asymmetry and new physics at the LHC