Results 91 to 100 of about 39,597 (170)
Electroweak Baryogenesis in the MSSM
, 1999 We review the baryogenesis scenario in the MSSM at the perturbative level and, in particular, the impact of two-loop corrections on the strength of the phase transition and the amount of generated baryon asymmetry.
Quiros, M., Seco, M.
core +1 more source
Semileptonic decays of the Higgs boson at the Tevatron
, 2011 We examine the prospects for extending the Tevatron reach for a Standard Model Higgs boson by including the semileptonic Higgs boson decays h --> WW --> l nu jj for M_h >~ 2 M_W, and h --> W jj --> l nu jj for M_h
Lykken, Joseph D. +2 more
core +1 more source
Two-loop light-quark Electroweak corrections to Higgs boson pair production in gluon fusion
Journal of High Energy PhysicsWe compute two-loop electroweak corrections to double Higgs boson production in gluon fusion mediated by light quarks in a fully analytical way. We determine a basis of master integrals satisfying canonical differential equations in dlog form, enhanced ...
Marco Bonetti +2 more
doaj +1 more source
, 2020 We present two new extractions of the QCD coupling constant at the Z pole, $\alpha_S(m_Z)$, from detailed comparisons of inclusive W and Z hadronic decays data to state-of-the-art perturbative Quantum Chromodynamics calculations at next-to-next-to-next ...
d'Enterria, David, Jacobsen, Villads
core
Electroweak corrections in the SMEFT: four-fermion operators at high energies
Journal of High Energy PhysicsIn the Standard Model (SM), electroweak (EW) corrections become significant at high energies, particularly at the tera-electronvolt scale and beyond, due to the presence of Sudakov logarithms.
Hesham El Faham +5 more
doaj +1 more source
Mixed QCD-EW corrections to W-pair production at electron-positron colliders
Journal of High Energy PhysicsThe discrepancy between the CDF measurement and the Standard Model theoretical prediction for the W-boson mass underscores the importance of conducting high-precision studies on the W boson, which is one of the predominant objectives of proposed future e
Zhe Li +7 more
doaj +1 more source
Electron-positron annihilation into heavy leptons at two loops
Journal of High Energy PhysicsWe calculate the NNLO QED corrections to the C-even part of differential cross section of e + e − → μ + μ − process. We neglect power corrections in the electron mass and obtain the result in terms of Goncharov’s polylogarithms.
Roman E. Gerasimov +2 more
doaj +1 more source
EVAluation of the Equivalent Vector boson Approximation at highest energy colliders
Journal of High Energy PhysicsCollider processes at the highest available partonic center-of-mass energies — 10 TeV and above — exhibit a new regime of electroweak interactions where electroweak gauge bosons mostly act as quasi-massless partons in vector boson fusion processes.
Benjamin Dahlén +4 more
doaj +1 more source
Learning Feynman integrals from differential equations with neural networks
Journal of High Energy PhysicsWe perform an exploratory study of a new approach for evaluating Feynman integrals numerically. We apply the recently-proposed framework of physics-informed deep learning to train neural networks to approximate the solution to the differential equations ...
Francesco Calisto +2 more
doaj +1 more source
Quantum properties of H → VV *: precise predictions in the SM and sensitivity to new physics
Journal of High Energy PhysicsWe study the quantum properties of the Higgs-boson decays into four fermions via two vector bosons (H → VV * → 4f). In particular, we focus on the case of two different-flavour lepton pairs (H → ZZ * → μ + μ − e + e − ).
Morgan Del Gratta +4 more
doaj +1 more source