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19932026
Showing 2002 · hep-phShow all

12 papers · 2 filters

hep-ph2002

Influence of the Sommerfeld Corrections to the Electric Polarizability of the Pion

Wolfgang Lucha, F. F. Schoberl

The valence-quark contribution to the electric polarizability of the pion in a semirelativistic description is shown to be smaller than its nonrelativistic limit.

hep-ph2002★ 45 cited

CP violation in charged Higgs boson decays into tau and neutrino

E. Christova, H. Eberl, S. Kraml +1

We calculate the CP-violating rate asymmetry of H^\pm decays into tau and neutrino at one loop in the MSSM with complex parameters. We find that the asymmetry is typically of the o…

hep-ph2002★ 8 cited

Single Higgs boson production at future linear colliders including radiative corrections

H. Eberl, W. Majerotto, V. C. Spanos

The next generation of high energy e+ e- linear colliders is expected to operate at \sqrt{s} \gtsim 500 GeV. In this energy range the WW fusion channel dominates the Higgs boson pr…

hep-ph2002★ 38 cited

Tau-Sleptons and Tau-Sneutrino in the MSSM with Complex Parameters

A. Bartl, K. Hidaka, T. Kernreiter +1

We present a phenomenological study of tau-sleptons stau_1,2 and tau-sneutrino in the Minimal Supersymmetric Standard Model with complex parameters A_tau, mu and M_1. We analyse pr…

hep-ph2002★ 16 cited

CP violation in charged Higgs boson decays in the MSSM with complex parameters

E. Christova, H. Eberl, S. Kraml +1

Supersymmetric loop contributions can lead to different decay rates of H+\to t\bar b and H-\to b\bar t. We calculate the decay rate asymmetry δ^CP = \frac{Γ(H+\to t\bar b)-Γ(H-\to…

hep-ph2002★ 18 cited

Radiative corrections to single Higgs boson production in annihilation

H. Eberl, W. Majerotto, V. C. Spanos

For energies relevant to future linear colliders, $\sqrt{s} \gsim 500$ GeV, the WW fusion channel dominates the Higgs boson production cross section . We ha…

hep-ph2002★ 44 cited

CP violation in charged Higgs boson decays in the MSSM with complex parameters

E. Christova, H. Eberl, S. Kraml +1

Supersymmetric loop contributions can lead to different decay rates of H+\to t\bar b and H-\to b\bar t. We calculate the decay rate asymmetry δ^CP = \frac{Γ(H+\to t\bar b)-Γ(H-\to…

hep-ph2002★ 6 cited

Electric Polarizability of Mesons in Semirelativistic Quark Models

Wolfgang Lucha, F. F. Schoberl

The electric polarizability of mesons, in particular, that of the charged pion, is studied in the framework of a semirelativistic description of hadrons as bound states of valence…

hep-ph2002★ 676 cited

The Snowmass Points and Slopes: Benchmarks for SUSY Searches

B. C. Allanach, M. Battaglia, G. A. Blair +32

The ``Snowmass Points and Slopes'' (SPS) are a set of benchmark points and parameter lines in the MSSM parameter space corresponding to different scenarios in the search for Supers…

hep-ph2002★ 22 cited

A CP sensitive asymmetry in the three--body decay stop_1 -> b tau+ tau-sneutrino

A. Bartl, T. Kernreiter, W. Porod

We consider the three--body decay stop_1 -> b tau+ tau-sneutrino and propose the asymmetry of the tau polarization perpendicular to the decay plane as a CP sensitive observable. We…

hep-ph2002★ 27 cited

Large lepton flavor violating signals in supersymmetric particle decays at future e+ e- colliders

W. Porod, W. Majerotto

We study lepton flavor violating signals at a future e+ e- linear collider within the general MSSM, allowing for the most general flavor structure. We demonstrate that there is a l…

hep-ph2002★ 27 cited

Selectron Pair Production at e-e- and e+e- Colliders with Polarized Beams

C. Blochinger, H. Fraas, G. Moortgat-Pick +1

We investigate selectron pair production and decay in e-e- scattering and e+e- annihilation with polarized beams taking into account neutralino mixing as well as ISR and beamstrahl…