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Two-body decays of the lightest stop in minimal supergravity with and without R-parity
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Two-body decays of the lightest stop in minimal supergravity with and without R-parity
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| dc.contributor.author | Díaz, Marco Aurelio | |
| dc.contributor.author | Restrepo, Diego | |
| dc.contributor.author | Furtado Valle, José Wagner | |
| dc.date.accessioned | 2015-10-22T11:22:57Z | |
| dc.date.available | 2015-10-22T11:22:57Z | |
| dc.date.issued | 2000 | |
| dc.identifier.citation | Díaz, Marco Aurelio Restrepo, Diego Furtado Valle, José Wagner 2000 Two-body decays of the lightest stop in minimal supergravity with and without R-parity Nuclear Physics B 583 1-2 182 210 | |
| dc.identifier.uri | http://hdl.handle.net/10550/47865 | |
| dc.description.abstract | We study the decays of the lightest top squark in supergravity models with and without R-parity. Using the simplest model with an effective explicit bilinear breaking of R-parity and radiative electroweak symmetry breaking we show that, below the threshold for decays into charginos t~1→cχ+1, the lightest stop decays mainly into third generation fermions, t~1→bτ instead of the R-parity conserving mode t~1→cχ01, even for tiny tau--neutrino mass values. Moreover we show that, even above the threshold for decays into charginos, the decay t~1→bτ may be dominant. We study the role played by the universality of the boundary conditions on the soft supersymmetry breaking terms. This new decay mode t~1→bτ as well as the cascades originated by the conventional t~1→cχ01 decay followed by the R-parity violating neutralino decays can provide new signatures for stop production at LEP and the Tevatron. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Nuclear Physics B, 2000, vol. 583, num. 1-2, p. 182-210 | |
| dc.subject | Física | |
| dc.title | Two-body decays of the lightest stop in minimal supergravity with and without R-parity | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-10-22T11:22:58Z | |
| dc.identifier.doi | 10.1016/S0550-3213(00)00344-8 | |
| dc.identifier.idgrec | 072174 | |
| dc.rights.accessRights | open access | es_ES |
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