Search for new physics phenomena in fermion-pair production at LEP
The measurements of hadron and lepton-pair production cross sections and lepton-pair forward–backward asymmetries performed with the L3 detector at centre-of-mass energies between 130 GeV and 172 GeV are used to search for new physics phenomena. New physics effects involving four fermion vertices –...
| Autores principales: | , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1998
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/78022 |
| Aporte de: |
| id |
I19-R120-10915-78022 |
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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 physics phenomena fermion-pair production L3 detector Física |
| spellingShingle |
Ciencias Exactas physics phenomena fermion-pair production L3 detector Física Dova, María Teresa L3 Collaboration Search for new physics phenomena in fermion-pair production at LEP |
| topic_facet |
Ciencias Exactas physics phenomena fermion-pair production L3 detector Física |
| description |
The measurements of hadron and lepton-pair production cross sections and lepton-pair forward–backward asymmetries performed with the L3 detector at centre-of-mass energies between 130 GeV and 172 GeV are used to search for new physics phenomena. New physics effects involving four fermion vertices – contact interactions – are looked for in all channels. For hadron production the exchange of virtual leptoquarks and scalar quarks is studied. No evidence for deviations from the Standard Model expectations is found. Lower limits on the scale Λ of contact interactions in the range 1.2–7.1 TeV are obtained at the 95% confidence level for various models. Upper limits on the coupling strengths of leptoquarks and scalar quarks are derived. |
| format |
Articulo Articulo |
| author |
Dova, María Teresa L3 Collaboration |
| author_facet |
Dova, María Teresa L3 Collaboration |
| author_sort |
Dova, María Teresa |
| title |
Search for new physics phenomena in fermion-pair production at LEP |
| title_short |
Search for new physics phenomena in fermion-pair production at LEP |
| title_full |
Search for new physics phenomena in fermion-pair production at LEP |
| title_fullStr |
Search for new physics phenomena in fermion-pair production at LEP |
| title_full_unstemmed |
Search for new physics phenomena in fermion-pair production at LEP |
| title_sort |
search for new physics phenomena in fermion-pair production at lep |
| publishDate |
1998 |
| url |
http://sedici.unlp.edu.ar/handle/10915/78022 |
| work_keys_str_mv |
AT dovamariateresa searchfornewphysicsphenomenainfermionpairproductionatlep AT l3collaboration searchfornewphysicsphenomenainfermionpairproductionatlep |
| bdutipo_str |
Repositorios |
| _version_ |
1764820485302910976 |