“…Quantum Chromodynamics is the theory of strong interactions: a quantum field theory of Yang-Mills gauge fields coupled to fermion (quark) fields. Discretizing spacetime into a four-dimensional lattice leads to defining gauge fields and fermions on a lattice. …”
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“…Testing the Yukawa couplings of the Higgs boson to fermions is an important part to understand the origin of fermion masses. …”
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“…Present LEP analyses combine this information with the study of the four-fermion final-state angular distributions by means of an extended maximum likelihood (EML) estimator. …”
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“…In its second phase, LEP has given the unique opportunity to study four fermion processes never observed before. This papers deals with a preliminary study of $WW$, $We\nu$, $ZZ$ and $Z\gamma^\star$ production in $e^+e^-$ collisions. …”
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“…We present a supersymmetric SU(5) x U(1)_H model, free from gauge anomalies, where the Abelian factor U(1)_H, introduced to account for the hierarchy of fermion masses and mixings, is broken by the same adjoint representations of SU(5) that also break the GUT symmetry. …”
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“…We describe radiative corrections to bremsstrahlung and their application to high energy collider physics, focusing on the applications to luminosity measurement, fermion pair production and radiative return. We review the status of one loop radiative corrections in BHLUMI and the KKMC, including cross checks with newer results developed independently for radiative return. …”
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“…An overview of the flavour problem is presented, with emphasis on the theoretical efforts to find a satisfactory description of the fermion masses and the mixing angles.…”
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“…We revisit and consistently update these constraints for a fourth fourth fermion generation, two Higgs doublet, inert Higgs and littlest Higgs models, models with large, universal or warped extra dimensions and technicolour. …”
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“…Since the discovery of the Higgs boson, measurements of the decay rates and couplings have become paramount to an understanding of the new boson and its role in electroweak symmetry breaking and the mechanism of fermion mass generation. Despite the small branching ratio, the diphoton decay channel is a particularly attractive method to study these properties thanks to the clean signal peak and novel analysis strategy. …”
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“…We study a model in which dark matter is a Dirac fermion with sub-GeV mass that interacts with the Standard Model via a dark photon, which kinetically mixes with the photon. …”
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“…In particular, only one spin-0 or spin-1 mediator and one DM particle $\chi$ assumed to be a fermion are introduced. Also s-channel processes are mainly considered in the simplest case. …”
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“…Included are a study of the disposition and character of resonances for certain operators, with applications to solid body physics; a survey of work in the perturbation of Hamiltonians in fermion systems; an examination of the construction of the Hamiltonian for three different pointwise interacting quantum particles; and a study of the lower branches of the Hamiltonian of the lattice model for chromodynamics. …”
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“…We investigate the effects of R-parity-violating $LL\bar E$ and $LQ\bar D$ operators on the production of fermion pairs at a $\mu^+ \mu^-$ collider with high energy and luminosity. …”
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“…We consider neutrino masses generated at tree level and at one loop, through fermion--sfermion loop diagrams, in the MSSM with R-parity violation. …”
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“…The results are compared with other experimental data known in light odd-mass xenon isotopes and with calculations performed in the frame of the multi-shell interacting boson-fermion model.…”
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“…The results can therefore be applied to any supersymmetric extension of the Standard Model or indeed to any polarized fermion pair production process in electron-positron annihilation.…”
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“…In this work we report about the effect that the improved knowledge of electroweak radiative corrections, via the recent calculations of four-fermion processes with O( alpha ) corrections in double pole approximation, has on WW physics at LEP2. …”
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“…E6, an exceptional Lie algebra, contains generators with spinor fermionic characteristics, providing a way to include fermions in string theory without 1-1 boson-fermion supersymmetry. …”
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“…We analyse whether this mechanism for baryogenesis is feasible in a variety of GUT models of fermion masses proposed in the literature, based on horizontal symmetries.…”
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“…For this model the self-consistent solutions of different topology are found in (1 + 1)D with due regard for fermion vacuum polarization effects. The renormalized total energy of the bag is studied as a function of its geometry and topological charge. …”
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