K. Hagiwara

activity

19932004

collaborators

8 papers

hep-ph2004

SUSY Loop Contributions to the $W$ -Pair Production in $e^{+} e^{-}$ Collisions

Kaoru Hagiwara, Shinya Kanemura, Yoshiaki Umeda

We discuss one-loop contributions of supersymmetry (SUSY) particles to the process $e^{+} e^{-} \to W^{+} W^{-}$ in the minimal supersymmetric standard model. The calculation is tested by us…

hep-ph2004

One-loop contributions of charginos and neutralinos to W+ W- production in e+ e- collisions

Kaoru Hagiwara, Shinya Kanemura, Yoshiaki Umeda

We study one-loop effects of charginos and neutralinos on the helicity amplitudes for the process $e^{+} e^{-} \to W^{+} W^{-}$ in the MSSM. The calculation is tested by using two methods. Fi…

hep-ph2001

TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider

R. -D. Heuer, D. J. Miller, F. Richard +236

The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider

hep-ph2000

One-loop contributions of the super-partner particles to $e^{-} e^{+} \to W^{-} W^{+}$ in the MSSM

Kaoru Hagiwara, Shinya Kanemura, Yoshiaki Umeda

One-loop contributions of super-partner particles to $W$ -pair production at $e^{+} e^{-}$ collision are discussed in the MSSM. To obtain trustworthy results we test our calculation usin…

hep-ph1999

Constraints on the mSUGRA parameter space from electroweak precision data

G. C. Cho, K. Hagiwara, C. Kao +1

We place constraints on the parameter space of the minimal supergravity (SUGRA) inspired supersymmetric (SUSY) extension of the standard model (SM), i.e. the mSUGRA model, by study…

hep-ph1997

CP Violation at Electron-Positron Colliders

M. S. Baek, S. Y. Choi, K. Hagiwara

A detailed, model-independent study of CP violation at present and future electron-positron colliders is reported. Firstly, we investigate CP violation effects in $W$ boson and $t$ …

SUSY Loop Contributions to the W-Pair Production in e+e− Collisions

One-loop contributions of charginos and neutralinos to W+ W- production in e+ e- collisions

TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider

One-loop contributions of the super-partner particles to e−e+→W−W+ in the MSSM

Constraints on the mSUGRA parameter space from electroweak precision data

CP Violation at Electron-Positron Colliders

SUSY Loop Contributions to the $W$ -Pair Production in $e^{+} e^{-}$ Collisions

One-loop contributions of the super-partner particles to $e^{-} e^{+} \to W^{-} W^{+}$ in the MSSM