A Search for Squarks of Rp-Violating SUSY at HERA
| dc.creator | Aid, S. | |
| dc.date | 1996-04-24 | |
| dc.date | 1996-04-27 | |
| dc.date.accessioned | 2026-07-07T11:46:43Z | |
| dc.date.available | 2026-07-07T11:46:43Z | |
| dc.description | A search for squarks of R-parity violating supersymmetry is performed in $ep$ collisions at HERA using H1 1994 $e^+$ data. Direct single production of squarks of each generation by $e^+$-quark fusion via a Yukawa coupling $λ'$ is considered. All possible R-parity violating decays and gauge decays of the squarks are taken into account. No significant deviation from the Standard Model predictions is found in the various multi-lepton and multi-jet final states studied and exclusion limits are derived. At 95% confidence level, the existence of first generation squarks is excluded for masses up to $240 \GeV $ for coupling values $λ' \gtrsim \sqrt{4πα_{em}}$.The limits obtained are shown to be only weakly dependent on the free parameters of the Minimal Supersymmetric Standard Model. Stop squarks are excluded for masses up to $138 \GeV$ for coupling $λ' \times \cos θ_t$ to $e^+d$ pairs $\gtrsim 0.1 \times \sqrt{4πα_{em}}$, where $θ_t$ is the mass mixing angle. Light stop squarks are furthermore searched for through pair production in $γ$-gluon fusion processes. No signal is observed and exclusion limits are derived. Masses in the range 9 to $24.4 \GeV$ are excluded at 95% confidence level for $λ' \times \cos θ_t > 10^{-4}$. | |
| dc.description | 31 pages, latex, 11 Figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9604006 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9604006 | |
| dc.identifier | Z.Phys.C71:211-226,1996 | |
| dc.identifier | doi:10.1007/s002880050165 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202321 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Search for Squarks of Rp-Violating SUSY at HERA | |
| dc.type | text |