dc.contributor.author |
De Campos, F. |
|
dc.contributor.author |
Éboli, O.J.P. |
|
dc.contributor.author |
García Jareño, Miguel Ángel |
|
dc.contributor.author |
Furtado Valle, José Wagner |
|
dc.date.accessioned |
2015-10-22T12:20:41Z |
|
dc.date.available |
2015-10-22T12:20:41Z |
|
dc.date.issued |
1999 |
|
dc.identifier.uri |
http://hdl.handle.net/10550/47876 |
|
dc.description.abstract |
We study chargino pair production at LEP II in supersymmetric models with spontaneously broken R-parity. We perform signal and background analyses, showing that a large region of the parameter space of these models can be probed through chargino searches at LEP II. In particular, we determine the attainable limits on the chargino mass as a function of the magnitude of the effective bilinear R-parity violation parameter ϵ, demonstrating that LEP II is able to unravel the existence of charginos with masses almost up to its kinematical limit even in the case of R-parity violation. This requires the study of several final state topologies since the usual MSSM chargino signature is recovered as ϵ→0. Moreover, for sufficiently large ϵ values, for which the chargino decay mode χ±→τ±J dominates, we find through a dedicated Monte Carlo analysis that the χ± mass bounds are again very close to the kinematic limit. Our results establish the robustness of the chargino mass limit, in the sense that it is basically model-independent. They also show that LEP II can establish the existence of spontaneous R-parity violation in a large region of parameter space should charginos be produced. |
|
dc.language.iso |
eng |
|
dc.relation.ispartof |
Nuclear Physics B, 1999, vol. 546, num. 1-2, p. 33-51 |
|
dc.source |
De Campos, F. Éboli, O.J.P. García Jareño, Miguel Ángel Furtado Valle, José Wagner 1999 R-parity violating signals for chargino production at LEP II Nuclear Physics B 546 1-2 33 51 |
|
dc.subject |
Física |
|
dc.title |
R-parity violating signals for chargino production at LEP II |
|
dc.type |
journal article |
es_ES |
dc.date.updated |
2015-10-22T12:20:41Z |
|
dc.identifier.doi |
http://dx.doi.org/10.1016/S0550-3213(99)00032-2 |
|
dc.identifier.idgrec |
073528 |
|
dc.rights.accessRights |
open access |
es_ES |