منابع مشابه
Sudakov Resummations at Higher Orders ∗
We summarize our recent results on the resummation of hard-scattering coefficient functions and on-shell form factors in massless perturbative QCD. The threshold resummation has been extended to the fourth logarithmic order for deep-inelastic scattering, Drell-Yan lepton pair production and Higgs production via gluon-gluon fusion. The leading six infrared pole terms have been derived to all ord...
متن کاملMassive QCD amplitudes at higher orders
We consider the factorization properties of on-shell QCD amplitudes with massive partons in the limit when all kinematical invariants are large compared to the parton mass and discuss the structure of their infrared singularities. The dimensionally regulated soft poles and the large collinear logarithms of the parton masses exponentiate to all orders. Based on this factorization a simple relati...
متن کاملMSSM Higgs Physics at Higher Orders
Various aspects of the Higgs boson phenomenology of the Minimal Supersymmetric Standard Model (MSSM) are reviewed. Emphasis is put on the effects of higher-order corrections. The masses and couplings are discussed in the MSSM with real and complex parameters. Higherorder corrections to Higgs boson production channels at a prospective e+e− linear collider are investigated. Corrections to Higgs b...
متن کاملTop Quark Pair Production at Higher Energies at the First
For a proper theoretical description of the top quark pair production cross section at the First Muon Collider in the kinematic regime away from the threshold the complete mass and energy dependence has to be taken into account. Two-loop calculations for the photon mediated total cross section are reviewed. For experiments at the Z pole quark mass effects in the total hadronic cross section σ(e...
متن کاملThe Pauli form factor of the quark induced by instantons
The non-perturbative contribution to the Pauli form factor of the quark, F2(Q 2), is calculated within an instanton model for the QCD vacuum. It is shown that the instantons give a large negative contribution to the form factor. The interaction of photons with hadrons is one of the most powerful tools to investigate the structure of strong interactions. The electromagnetic form factors of hadro...
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: Journal of High Energy Physics
سال: 2005
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2005/08/049