Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Actis S"'
Autor:
Actis, S., Arbuzov, A., Balossini, G., Beltrame, P., Bignamini, C., Bonciani, R., Calame, C. M. Carloni, Cherepanov, V., Czakon, M., Czyz, H., Denig, A., Eidelman, S., Fedotovich, G. V., Ferroglia, A., Gluza, J., Grzelinska, A., Gunia, M., Hafner, A., Ignatov, F., Jadach, S., Jegerlehner, F., Kalinowski, A., Kluge, W., Korchin, A., Kuhn, J. H., Kuraev, E. A., Lukin, P., Mastrolia, P., Montagna, G., Muller, S. E., Nguyen, F., Nicrosini, O., Nomura, D., Pakhlova, G., Pancheri, G., Passera, M., Penin, A., Piccinini, F., Placzek, W., Przedzinski, T., Remiddi, E., Riemann, T., Rodrigo, G., Roig, P., Shekhovtsova, O., Shen, C. P., Sibidanov, A. L., Teubner, T., Trentadue, L., Venanzoni, G., van der Bij, J. J., Wang, P., Ward, B. F. L., Was, Z., Worek, M., Yuan, C. Z.
Publikováno v:
Eur.Phys.J.C66:585-686,2010
We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on tau decays
Externí odkaz:
http://arxiv.org/abs/0912.0749
Publikováno v:
Nucl.Phys.B811:182-273,2009
A large set of techniques needed to compute decay rates at the two-loop level are derived and systematized. The main emphasis of the paper is on the two Standard Model decays H -> gamma gamma and H -> g g. The techniques, however, have a much wider r
Externí odkaz:
http://arxiv.org/abs/0809.3667
Publikováno v:
Phys.Lett.B670:12-17,2008
Results for the complete NLO electroweak corrections to Standard Model Higgs production via gluon fusion are included in the total cross section for hadronic collisions. Artificially large threshold effects are avoided working in the complex-mass sch
Externí odkaz:
http://arxiv.org/abs/0809.1301
Publikováno v:
Phys.Lett.B669:62-68,2008
The effect of threshold singularities induced by unstable particles on two-loop observables is investigated and it is shown how to cure them working in the complex-mass scheme. The impact on radiative corrections around thresholds is thoroughly analy
Externí odkaz:
http://arxiv.org/abs/0809.1302
Publikováno v:
Nucl.Phys.B807:1-32,2009
We calculate the parametrically dominant next-to-next-to-leading order corrections to four-fermion production e^- e^+ -> mu^- nubar_mu u dbar + X at centre-of-mass energies near the W-pair production threshold employing the method of unstable-particl
Externí odkaz:
http://arxiv.org/abs/0807.0102
Publikováno v:
Acta Phys.Polon.B38:3517-3528,2007
We derive the two-loop corrections to Bhabha scattering from heavy fermions using dispersion relations. The double-box contributions are expressed by three kernel functions. Convoluting the perturbative kernels with fermionic threshold functions or w
Externí odkaz:
http://arxiv.org/abs/0710.5111
Publikováno v:
Nucl.Phys.B786:26-51,2007
We evaluate the two-loop corrections to Bhabha scattering from fermion loops in the context of pure Quantum Electrodynamics. The differential cross section is expressed by a small number of Master Integrals with exact dependence on the fermion masses
Externí odkaz:
http://arxiv.org/abs/0704.2400
Autor:
Actis, S., Passarino, G.
Publikováno v:
Nucl.Phys.B777:100-156,2007
In part I and II of this series of papers all elements have been introduced to extend, to two loops, the set of renormalization procedures which are needed in describing the properties of a spontaneously broken gauge theory. In this paper, the final
Externí odkaz:
http://arxiv.org/abs/hep-ph/0612124
Autor:
Actis, S., Passarino, G.
Publikováno v:
Nucl.Phys.B777:35-99,2007
In part I general aspects of the renormalization of a spontaneously broken gauge theory have been introduced. Here, in part II, two-loop renormalization is introduced and discussed within the context of the minimal Standard Model. Therefore, this pap
Externí odkaz:
http://arxiv.org/abs/hep-ph/0612123
Publikováno v:
Nucl.Phys.B777:1-34,2007
In this paper the building blocks for the two-loop renormalization of the Standard Model are introduced with a comprehensive discussion of the special vertices induced in the Lagrangian by a particular diagonalization of the neutral sector and by two
Externí odkaz:
http://arxiv.org/abs/hep-ph/0612122