6533b823fe1ef96bd127f283
RESEARCH PRODUCT
Search for heavy stable and long-lived particles in e(+)e(-) collisions at root s=189 GeV
Delphi CollaborationReyes Alemany FernándezSusana Cabrera UrbánMaría Victoria Castillo GiménezEduardo Cortina GilMaría José Costa MezquitaAntonio Ferrer SoriaJuan A. Fuster VerdúCarmen García GarcíaInés Gil BotellaJuan José Hernández ReyEmilio Higón RodríguezFernando Martínez VidalSergio Navas ConchaArantza Oyanguren CamposJosé Salt CairolsPablo Tortosa Martínezsubject
High Energy Physics::ExperimentFísica nuclearPartícules (Física nuclear)description
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging Cherenkov Detector and the ionisation loss measured in the Time Projection Chamber were used to identify heavy particles passing through the detector. No evidence for the production of such particles has been found, therefore exclusion limits at 95% confidence level were derived on the masses of left and right handed smuons and staus. The results were combined with previous DELPHI searches in this channel. Including previous DELPHI results, masses of left (right) handed stable smuons and staus can be excluded between 2 GeV/c^2 and 88 (87.5) GeV/c^2 at 95% CL.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-01-01 |