s'authentifier
version française rss feed
HAL : in2p3-00192252, version 1

Fiche concise  Récupérer au format
$e^+ e^- \to e^- (\bar \nu_e) u (\bar d)$ from LEP to linear collider energies
Kurihara Y., Perret-Gallix D., Shimizu Y.
Physics Letters B 349 (1994) 367-374 - http://hal.in2p3.fr/in2p3-00192252
Physique/Physique des Hautes Energies - Phénoménologie
$e^+ e^- \to e^- {\bar \nu_e} u {\bar d}$ from LEP to linear collider energies
Y. Kurihara, D. Perret-Gallix1, Y. Shimizu
1 :  LAPP - Laboratoire d'Annecy le Vieux de Physique des Particules
http://wwwlapp.in2p3.fr/
CNRS : UMR5814 – IN2P3 – Université de Savoie
9 Chemin de Bellevue - BP 110 - 74941 Annecy-le-Vieux CEDEX - France
France
The complete tree level cross section for the process $e^+e^- \to e^- \bar\nu_e u \bar{d}$ is computed using the GRACE system, a program package for automatic amplitude calculation. Special attention is brought to the gauge violation problem induced by the finite width of the $W$-boson. The {\it preserved gauge scheme} is introduced and an event generator which includes double-resonant, single-resonant and non-resonant diagrams with no need for a cut on the electron polar angle is presented. Since no cut needs to be applied to the electron, the generator can be used to estimate background for searches involving jets and missing energy. A monojet event rate estimation based on this process at LEP-I energy is discussed.

Articles dans des revues avec comité de lecture
1994
Physics Letters B (Phys. Lett. B)
Publisher Elsevier
ISSN 0370-2693 
349
367-374

KEK preprint 94-150, KEK CP-021, LAPP-EXP-94-23
18 pages, uses epsfig.sty, 10 postscript figures. revised for minor change of the text at Dec 6 1994
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/hep-ph/9412215