Probing the minimal $U(1{)}_X$ model at future electron-positron colliders via the fermion pair-production channel

Abstract

The minimal $U(1{)}_X$ extension of the Standard Model (SM) is a well-motivated new physics scenario, where anomaly cancellation dictates new neutral gauge boson ($Z^{\prime }$) couplings with the SM fermions in terms of the $U(1{)}_X$ charges of the new scalar fields. We investigate the SM charged fermion pair-production process for different values of these $U(1{)}_X$ charges at future $e^{-}{e}^{+}$ colliders: $e^{+}{e}^{-}\to f\bar{f}$. Apart from the standard $\gamma$ and $Z$-mediated processes, this model features additional $s$-channel (or both $s$ and $t$-channel when $f=e^{-}$) $Z^{\prime }$ exchange which interferes with the SM processes. We first estimate the bounds on the $U(1{)}_X$ coupling $(g^{\prime })$ and the $Z^{\prime }$ mass $(M_{Z^{\prime }})$ considering the latest dilepton and dijet constraints from the heavy resonance searches at the LHC. Then using the allowed values of $g^{\prime }$, we study the angular distributions, forward-backward $({\mathcal{A}}_{\mathrm{FB}})$, left-right $({\mathcal{A}}_{\mathrm{LR}})$ and left-right forward-backward $({\mathcal{A}}_{\mathrm{LR},\mathrm{FB}})$ asymmetries of the $f\bar{f}$ final states. We find that these observables can show substantial deviations from the SM results in the $U(1{)}_X$ model, thus providing a powerful probe of the multi-TeV $Z^{\prime }$ bosons at future $e^{+}{e}^{-}$ colliders.

arXiv comment51 pages. Typos in Higgs charges in Tab-II corrected. Results unaltered. Matched published version

References in corpus (30)

• The Minimal Composite Higgs Model
• The Physics of Heavy Z' Gauge Bosons
• Precision Electroweak Measurements on the Z Resonance
• Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP
• The Phenomenology of Extra Neutral Gauge Bosons
• Z-prime Gauge Bosons at the Tevatron
• Search for high-mass dilepton resonances using 139 fb${}^{-1}$ of $pp$ collision data collected at $\sqrt{s}=$13 TeV with the ATLAS detector
• The role of polarized positrons and electrons in revealing fundamental interactions at the Linear Collider
• Nonexotic Neutral Gauge Bosons
• Search for narrow and broad dijet resonances in proton-proton collisions at $\sqrt{s}=$ 13 TeV and constraints on dark matter mediators and other new particles
• Gauge-Higgs Unification and Radiative Electroweak Symmetry Breaking in Warped Extra Dimensions
• ILC Operating Scenarios
• CEPC Conceptual Design Report: Volume 1 - Accelerator
• Dynamical Electroweak Symmetry Breaking in SO(5)xU(1) Gauge-Higgs Unification with Top and Bottom Quarks
• Classically conformal U(1)' extended standard model, electroweak vacuum stability, and LHC Run-2 bounds
• Long-lived TeV-scale right-handed neutrino production at the LHC in gauged $U(1{)}_X$ model
• Search for a heavy neutral gauge boson in the dielectron channel with 5.4 fb-1 of ppbar collisions at sqrt(s) = 1.96 TeV
• Enhanced pair production of heavy Majorana neutrinos at LHC
• Displaced heavy neutrinos from $Z^{\prime }$ decays at the LHC
• Tests of the Standard Model at the International Linear Collider
• Heavy Majorana neutrino pair productions at the LHC in minimal U(1) extended Standard Model
• Novel universality and Higgs decay H -> γγ, gg in the SO(5) x U(1) gauge-Higgs unification
• Vacuum Stability in U(1)-Prime Extensions of the Standard Model with TeV Scale Right Handed Neutrinos
• Probing the seesaw mechanism at the 250 GeV ILC
• Constraining a general U(1)${}^{\prime }$ inverse seesaw model from vacuum stability, dark matter and collider
• Search for High Mass Resonances Decaying to Muon Pairs in $\sqrt{s}=1.96$ TeV $p\bar{p}$ Collisions
• Reconstructing a Z' Lagrangian using the LHC and low-energy data
• Simple Left-Right Theory: Lepton Number Violation at the LHC
• Dissection of an SO(5) x U(1) Gauge-Higgs Unification Model
• Fermion pair production at $e^{-}{e}^{+}$ linear collider experiments in GUT inspired gauge-Higgs unification

Cited by in corpus (15)

• Gravitational Wave Pathway to Testable Leptogenesis
• Chiral $Z^{\prime }$ in FASER, FASER2, DUNE, and ILC beam dump experiments
• Combined constraints on dark photons and discovery prospects at the LHC and the Forward Physics Facility
• New Physics Search at the CEPC: a General Perspective
• Radiative Plateau Inflation with Conformal Invariance: Dynamical Generation of Electroweak and Seesaw Scales
• Bhabha scattering in the gauge-Higgs unification
• $Z^{\prime }$ induced forward dominant processes in $\mu$TRISTAN experiment
• Precision studies for string derived $Z^{\prime }$ dynamics at the LHC
• Right handed neutrino production from $Z^{\prime }$ interactions in forward search experiments
• Verifiable type-III seesaw and dark matter in a gauged $\mathbf{U}(1{)}_{\mathrm{B}-\mathrm{L}}$ symmetric model
• Searching for the dark photon at the Future Circular Lepton Collider
• $B-L$ model in light of the CDF II result
• Bounds reach of a future circular collider on the parameters of a minimal Baryon-Lepton symmetric model
• Physical implications of a double right-handed gauge symmetry
• Search for a neutral gauge boson with nonuniversal fermion couplings in vector boson fusion processes in proton-proton collisions at $\sqrt{s}$ = 13 TeV