Search for neutralinos in Z decays
We have searched for neutralinos produced via the reactions e+e− → χχ′ and e+e−→ χ′χ′, where the next-to lightest neutralino, χ′, decays into the lightest neutralino, χ, and either a photon or a fermion pair. Based on 1.8 × 106 hadronic Z decays collected with the L3 detector at LEP, no signal has b...
| Autores principales: | , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1995
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/73369 |
| Aporte de: |
| id |
I19-R120-10915-73369 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Física neutralinos photon fermion pair |
| spellingShingle |
Ciencias Exactas Física neutralinos photon fermion pair Dova, María Teresa L3 Collaboration Search for neutralinos in Z decays |
| topic_facet |
Ciencias Exactas Física neutralinos photon fermion pair |
| description |
We have searched for neutralinos produced via the reactions e+e− → χχ′ and e+e−→ χ′χ′, where the next-to lightest neutralino, χ′, decays into the lightest neutralino, χ, and either a photon or a fermion pair. Based on 1.8 × 106 hadronic Z decays collected with the L3 detector at LEP, no signal has been observed. We present upper limits of a few times 10−5 on the branching ratios Z → χχ′ and Z → χ′χ′. In the framework of the Minimial Supersymmetric Standard Model, we exclude a lightest χ with mχ less than 18 GeV, if either tan β > 2 or the gluino mass m≈g > 100 GeV. |
| format |
Articulo Articulo |
| author |
Dova, María Teresa L3 Collaboration |
| author_facet |
Dova, María Teresa L3 Collaboration |
| author_sort |
Dova, María Teresa |
| title |
Search for neutralinos in Z decays |
| title_short |
Search for neutralinos in Z decays |
| title_full |
Search for neutralinos in Z decays |
| title_fullStr |
Search for neutralinos in Z decays |
| title_full_unstemmed |
Search for neutralinos in Z decays |
| title_sort |
search for neutralinos in z decays |
| publishDate |
1995 |
| url |
http://sedici.unlp.edu.ar/handle/10915/73369 |
| work_keys_str_mv |
AT dovamariateresa searchforneutralinosinzdecays AT l3collaboration searchforneutralinosinzdecays |
| bdutipo_str |
Repositorios |
| _version_ |
1764820483976462336 |