In the SM, the production cross section for the triple Higgs boson final state is the lowest-order process to include the quartic Higgs self-coupling. At the LHC's nominal centre-of-mass energy, 14 TeV, the cor
(3.14) We are interested in the scaling of the masses as the fermion mass mq → 0, which corresponds to m−q 1/ymΛ →∞. We can then distinguish two different regimes 1 lim F (x) = κ ⇒ mφ = O m 1+γ∗ q , x→∞ κx ⇒ mφ = O (Λ) (3.15)...
associated productions of the new gauge boson bh in the littlest higgs model with a sm gaug 热度: Founder centrality and top management team social network effects on top management behavioral integration and firm performance in family businesses. 热度: Extended Jahn-Teller effects in fermion-...
For example, when C is a fermion and B is a vector boson, the BℓC coupling is given by Lint = ψ¯lγµ (cLPL + cRPR) ψC AµB, (2.11) –7– Spin assignments Antler diagram SSF SVF Examples H20 → H1+H1− → ℓ+ℓ−ν1ν¯1 H0 → W +W − → ℓ+...
1 Introduction After the discovery of the Higgs boson, the missing piece of the Standard Model (SM), the quest for physics beyond the SM (BSM) has intensified, both from theorists and experi- mentalists. The searches and analyses are motivated by the fact that while precise theoretical ...
Therefore, only the heavier non-SM Higgs will decay into a lighter non-SM like Higgs and a gauge boson via an exotic decay mode. The lightest non-SM like Higgs will then decay into fermion pairs. In a Type-II 2HDM, the couplings of the non-SM Higgses to SM fermion pairs in the ...
contribution from Z boson exchange and Z-photon interference, as relevant for measurements on the Z pole, where PZ (Q2) = Q2/(Q2 − m2Z + iΓZ mZ ) is the reduced Z propagator and ef (vf , af ) are the electromagnetic charge (vector, axial coupling to the Z) of a fermion f...
Thamm, Lifting degeneracies in Higgs couplings using single top production in association with a Higgs boson, JHEP 05 (2013) 022 [arXiv:1211.3736] [INSPIRE]. [50] D.B. Kaplan, Flavor at SSC energies: a New mechanism for dynamically generated fermion masses, Nucl. Phys. B 365 (1991) ...
Contours of constant gluon-emission evolution variable forainitial–initial andbinitial–final configurations. Forathe recoiler is chosen to be a Higgs boson,s_{AB}=m_H^2, and forbs_{AK}=10500\,\text {GeV}^2andx_A=0.3. For both cases, the total hadronic\sqrt{s}=7\,\text {TeV} ...
The extended fermion sectors include heavy left-handed and sterile right-handed neutrinos as well as vector-like fermions (VLFs), such as EW-singlet vector-like quarks (VLQs) and EW-doublet vector-like leptons (VLLs). The latter can poten- tially be at the reach of Run-III and the ...