Search for the singlet vector-like lepton at future $$e^+ e^-$$ colliders
نویسندگان
چکیده
منابع مشابه
Colour Reconnection at Future e+e− Colliders
The effects of colour reconnection (CR) at e+e− colliders are revisited, with focus on recently developed CR models. The new models are compared with the LEP2 measurements for e+e− → W+W− → q1q2q3q4 and found to lie within their limits. Prospects for constraints from new high-luminosity e+e− colliders are discussed. The novel arena of CR in Higgs decays is introduced, and illustrated by shifts ...
متن کاملLeptoquark Search at e+e− Colliders
We investigate the possibility of detecting a scalar leptoquark, coupling to the electron and the top, at a linear collider. For coupling strength equalling the weak coupling constant, the present mass bounds are of the order of 300 GeV. We demonstrate that at the NLC, one could detect such particles if their mass were less than a few TeV’s. ∗[email protected], [email protected]...
متن کاملSearch Strategies for Non - Standard Higgs Bosons at Future e + e − Colliders
Already in the simplest two-Higgs-doublet model with CP violation in the Higgs sector, the 3 × 3 mixing matrix for the neutral Higgs bosons can substantially modify their couplings, thereby endangering the “classical” Higgs search strategies. However, there are sum rules relating Yukawa and Higgs–Z couplings which ensure that the ZZ, bb and tt couplings of a given neutral 2HDM Higgs boson canno...
متن کاملProbing anomalous triple boson vertices at future e+e- colliders.
We explore the detection potential of the four lepton production processes e+e− → l+νl′−ν for anomalous contributions to the triple boson vertices at proposed future high energy colliders with center-of-mass energies of 500 GeV and 1 TeV. The predicted bounds are of the order of a few percent for the CP -even couplings κV (V=γ,Z) at the higher energy; we show that these limits can be improved b...
متن کاملin e + e − → t ¯ bH − production at future Linear Colliders
Heavy charged Higgs bosons (H) of a Type II 2-Higgs Doublet Model (2HDM) can be detected at future electron-positron Linear Colliders (LCs) even when their mass is larger than half the collider energy. The single Higgs mode ee → tb̄H+ c.c. → 4b+jj+ l+p T (where j represents a jet and with l = e, μ) contributes to extend the discovery reach of H states into the mass region MH± ∼ √ s/2, where the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2021
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-021-09152-2