A study of late decaying charged particles at future colliders

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dc.creatorHamaguchi, Koichi
dc.creatorKuno, Yoshitaka
dc.creatorNakaya, Tsuyoshi
dc.creatorNojiri, Mihoko M.
dc.date2004-09-21
dc.date2004-09-24
dc.date.accessioned2026-07-07T10:49:15Z
dc.date.available2026-07-07T10:49:15Z
dc.descriptionIn models where the gravitino is the lightest supersymmetric particle (LSP), the next-to-lightest supersymmetric particle (NLSP) is long-lived. We consider an important charged NLSP candidate, the scalar tau $\tildeτ$. Slow charged NLSPs may be produced at future colliders and they may be stopped in a massive stopper which simultaneously serves as a detector for the NLSP and its decay products. We found the number of events at a 1 kton to O(10) kton detector could be significant enough to study the NLSP decays with lifetime shorter than $10^{10}$ sec at the LHC. The performance of existing 1 kton detectors may be good enough to do such studies at the LHC, if they can be placed close to the ATLAS/CMS detectors. At a future $e^- e^-$ collider, scalar electrons $\tilde{e}^-$s are copiously produced. Slow NLSPs may be produced from the $\tilde{e}^-$ decay. The number of stopped NLSPs at a future linear collider could be large enough to study rare decay modes of the NLSP.
dc.description22 pages, 9 figures. v2: Comments and references are added
dc.identifierhttps://arxiv.org/abs/hep-ph/0409248
dc.identifierhttp://arxiv.org/abs/hep-ph/0409248
dc.identifierPhys.Rev.D70:115007,2004
dc.identifierdoi:10.1103/PhysRevD.70.115007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184158
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.titleA study of late decaying charged particles at future colliders
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