2021 Impact factor 4.991
Particles and Fields

Eur. Phys. J. C 19, 155-181
DOI: 10.1007/s100520100568

Single superpartner production at Tevatron Run II

F. Déliot1, G. Moreau2 and C. Royon1, 3, 4

1  Service de Physique des Particules, DAPNIA, CEA/Saclay, 91191 Gif-sur-Yvette Cedex, France
2  Service de Physique Théorique, CEA/Saclay, 91191 Gif-sur-Yvette Cedex, France
3  Brookhaven National Laboratory, Upton, NY 11973, USA
4  University of Texas, Arlington, TX 76019, USA

(Received: 27 July 2000 / Revised version: 27 November 2000 / Published online: 23 February 2001 -© Springer-Verlag 2001)

We study the single production of supersymmetric particles at Tevatron Run II which occur in the $2 \to 2-body$ processes involving R-parity violating couplings of type $\l '_{ijk} L_i Q_j D_k^c$. We focus on the single gaugino production which receive contributions from the resonant slepton production. We first calculate the amplitudes of the single gaugino production. Then we perform analyses of the single gaugino production based on the three charged leptons and like sign dilepton signatures. These analyses allow to probe supersymmetric particles masses beyond the present experimental limits, and many of the $\l '_{ijk}$ coupling constants down to values smaller than the low-energy bounds. Finally, we show that the studies of the single gaugino production offer the opportunity to reconstruct the $\tilde \chi^0_1$, $\tilde \chi^{\pm}_1$, $\tilde \nu_L$ and $\tilde l^{\pm}_L$ masses with a good accuracy in a model independent way.

© Società Italiana di Fisica, Springer-Verlag 2001