Determining Sneutrino Masses and Physical Implications

dc.creatorFreitas, A.
dc.creatorPorod, W.
dc.creatorZerwas, P. M.
dc.date2005-09-07
dc.date.accessioned2026-07-07T11:26:46Z
dc.date.available2026-07-07T11:26:46Z
dc.descriptionIn some areas of supersymmetry parameter space, sneutrinos are lighter than the charginos and the next-to-lightest neutralino, and they decay into the invisible neutrino plus lightest-neutralino channel with probability one. In such a scenario they can be searched for in decays of charginos that are pair-produced in e+e- collisions, and in associated sneutrino-chargino production in photon-electron collisions. The sneutrino properties can be determined with high accuracy from the edges of the decay energy spectra in the first case and from threshold scans in the second. In the final part of the report we investigate the mass difference of sneutrinos and charged sleptons between the third and the first two generations in seesaw-type models of the neutrino/sneutrino sector. For a wide range these mass differences are sensitive to the seesaw scale.
dc.description20 pp
dc.identifierhttps://arxiv.org/abs/hep-ph/0509056
dc.identifierhttp://arxiv.org/abs/hep-ph/0509056
dc.identifierPhys.Rev.D72:115002,2005
dc.identifierdoi:10.1103/PhysRevD.72.115002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195939
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDetermining Sneutrino Masses and Physical Implications
dc.typetext

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