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 corresponding cross section in the SM is diminishingly small, ∼ 0.1 fb [66,...
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...
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-...
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 ...
Our main focus is on the fermion sector and its interplay with the Higgs boson. This depends on the composite resonances associated with the top quark. Up to EWSB effects, –3– these resonances fall into representations of the unbroken SO(4). One expects to find that sets of these SO(...
3. To focus on the improvement in the QCD regions of phase space we apply a cut on the transverse mass of the Z boson and require it to be larger than the branching scale of the path that has been chosen to characterise the phase-space point, p⊥2 IF < m2⊥ Z = k⊥2 Z + m2...
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 notation q˜1,2, ˜1,2, and ν˜1,2 refers to the mass eigenstates, which differ from the gauge ones q˜L,R, ˜L,R, and ν˜L,R because of the mixing; such mixing terms are proportional to the fermion squared masses, and therefore they are mostly relevant in the ...