Searches for scalar top and scalar bottom quarks in e+e- interactions at 161 GeV ≤ √s ≤ 183 GeV

Searches for scalar top and scalar bottom quarks have been performed at center-of-mass energies between 161 GeV and 183 GeV using the L3 detector at LEP. No signal is observed. Model-independent limits on production cross sections are determined for the two decay channels <math><mtext>t&...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, L3 Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 1999
Materias:
Ciencias Exactas
Física
quarks in e+e-
L3 detector
minimal supersymmetric extension
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78042
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78042
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
quarks in e+e-
L3 detector
minimal supersymmetric extension
spellingShingle Ciencias Exactas
Física
quarks in e+e-
L3 detector
minimal supersymmetric extension
Dova, María Teresa
L3 Collaboration
Searches for scalar top and scalar bottom quarks in e+e- interactions at 161 GeV ≤ √s ≤ 183 GeV
topic_facet Ciencias Exactas
Física
quarks in e+e-
L3 detector
minimal supersymmetric extension
description Searches for scalar top and scalar bottom quarks have been performed at center-of-mass energies between 161 GeV and 183 GeV using the L3 detector at LEP. No signal is observed. Model-independent limits on production cross sections are determined for the two decay channels <math><mtext>t</mtext><mtext>̃</mtext><msub><mi></mi><mn>1</mn></msub></math>→c<math><mtext>χ</mtext><mtext>̃</mtext><msub><mi></mi><mn>1</mn></msub><msup><mi></mi><mn>0</mn></msup></math> and <math><mtext>b</mtext><mtext>̃</mtext><msub><mi></mi><mn>1</mn></msub></math>→b<math><mtext>χ</mtext><mtext>̃</mtext><msub><mi></mi><mn>1</mn></msub><msup><mi></mi><mn>0</mn></msup></math>. Within the framework of the Minimal Supersymmetric extension of the Standard Model mass limits are derived. For mass differences between <math><mtext>t</mtext><mtext>̃</mtext><msub><mi></mi><mn>1</mn></msub></math> and <math><mtext>χ</mtext><mtext>̃</mtext><msub><mi></mi><mn>1</mn></msub><msup><mi></mi><mn>0</mn></msup></math> greater than 10 GeV a 95% C.L. limit of 81.5 GeV is set on the mass of the Supersymmetric partner of the left-handed top. A supersymmetric partner of the left-handed bottom with a mass below 80 GeV is excluded at 95% C.L. if the mass difference between <math><mtext>b</mtext><mtext>̃</mtext><msub><mi></mi><mn>1</mn></msub></math> and <math><mtext>χ</mtext><mtext>̃</mtext><msub><mi></mi><mn>1</mn></msub><msup><mi></mi><mn>0</mn></msup></math> is greater than 20 GeV.
format Articulo
Articulo
author Dova, María Teresa
L3 Collaboration
author_facet Dova, María Teresa
L3 Collaboration
author_sort Dova, María Teresa
title Searches for scalar top and scalar bottom quarks in e+e- interactions at 161 GeV ≤ √s ≤ 183 GeV
title_short Searches for scalar top and scalar bottom quarks in e+e- interactions at 161 GeV ≤ √s ≤ 183 GeV
title_full Searches for scalar top and scalar bottom quarks in e+e- interactions at 161 GeV ≤ √s ≤ 183 GeV
title_fullStr Searches for scalar top and scalar bottom quarks in e+e- interactions at 161 GeV ≤ √s ≤ 183 GeV
title_full_unstemmed Searches for scalar top and scalar bottom quarks in e+e- interactions at 161 GeV ≤ √s ≤ 183 GeV
title_sort searches for scalar top and scalar bottom quarks in e+e- interactions at 161 gev ≤ √s ≤ 183 gev
publishDate 1999
url http://sedici.unlp.edu.ar/handle/10915/78042
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AT l3collaboration searchesforscalartopandscalarbottomquarksineeinteractionsat161gevs183gev
bdutipo_str Repositorios
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