Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP
- Autores
- Dova, María Teresa; L3 Collaboration
- Año de publicación
- 2005
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Neutral-current four-fermion production, e+e- → f ̄f f' ̄ f', is studied in 0.7 fb−1 of data collected with the L3 detector at LEP at centre-of-mass energies √s = 183–209 GeV. Four final states are considered: q ̄qν ̄ν, q ̄qℓ+ℓ-, ℓ+ℓ-ℓ'+ℓ'- and ℓ+ℓ-ν ̄ν, where ℓ denotes either an electron or a muon. Their cross sections are measured and found to agree with the Standard Model predictions. In addition, the e+e- → Zγ ∗ → f ̄f f' ̄ f' process is studied and its total cross section at the average centre- of-mass energy (√s) = 196.6 GeV is found to be 0.29 ± 0.05 ± 0.03 pb, where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model prediction of 0.22 pb. Finally, the mass spectra of the qq ̄ℓ+ℓ- final states are analysed to search for the possible production of a new neutral heavy particle, for which no evidence is found.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
L3 detector
fermiones
Electromagnetismo - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/3.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/79452
Ver los metadatos del registro completo
id |
SEDICI_9d18c3a0a29a53acc6a4f97dfc2dbc4c |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/79452 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
spelling |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEPDova, María TeresaL3 CollaborationCiencias ExactasFísicaL3 detectorfermionesElectromagnetismoNeutral-current four-fermion production, e<sup>+</sup>e<sup>-</sup> → f ̄f f' ̄ f', is studied in 0.7 fb<sup>−1</sup> of data collected with the L3 detector at LEP at centre-of-mass energies √s = 183–209 GeV. Four final states are considered: q ̄qν ̄ν, q ̄qℓ<sup>+</sup>ℓ<sup>-</sup>, ℓ<sup>+</sup>ℓ<sup>-</sup>ℓ'<sup>+</sup>ℓ'<sup>-</sup> and ℓ<sup>+</sup>ℓ<sup>-</sup>ν ̄ν, where ℓ denotes either an electron or a muon. Their cross sections are measured and found to agree with the Standard Model predictions. In addition, the e<sup>+</sup>e<sup>-</sup> → Zγ <sup>∗</sup> → f ̄f f' ̄ f' process is studied and its total cross section at the average centre- of-mass energy (√s) = 196.6 GeV is found to be 0.29 ± 0.05 ± 0.03 pb, where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model prediction of 0.22 pb. Finally, the mass spectra of the qq ̄ℓ<sup>+</sup>ℓ<sup>-</sup> final states are analysed to search for the possible production of a new neutral heavy particle, for which no evidence is found.Facultad de Ciencias Exactas2005-05-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf159-173http://sedici.unlp.edu.ar/handle/10915/79452enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2005.04.062info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:12:17Zoai:sedici.unlp.edu.ar:10915/79452Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:12:17.947SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP |
title |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP |
spellingShingle |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP Dova, María Teresa Ciencias Exactas Física L3 detector fermiones Electromagnetismo |
title_short |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP |
title_full |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP |
title_fullStr |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP |
title_full_unstemmed |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP |
title_sort |
Neutral-current four-fermion production in e<sup>+</sup>e<sup>−</sup> interactions at LEP |
dc.creator.none.fl_str_mv |
Dova, María Teresa L3 Collaboration |
author |
Dova, María Teresa |
author_facet |
Dova, María Teresa L3 Collaboration |
author_role |
author |
author2 |
L3 Collaboration |
author2_role |
author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Física L3 detector fermiones Electromagnetismo |
topic |
Ciencias Exactas Física L3 detector fermiones Electromagnetismo |
dc.description.none.fl_txt_mv |
Neutral-current four-fermion production, e<sup>+</sup>e<sup>-</sup> → f ̄f f' ̄ f', is studied in 0.7 fb<sup>−1</sup> of data collected with the L3 detector at LEP at centre-of-mass energies √s = 183–209 GeV. Four final states are considered: q ̄qν ̄ν, q ̄qℓ<sup>+</sup>ℓ<sup>-</sup>, ℓ<sup>+</sup>ℓ<sup>-</sup>ℓ'<sup>+</sup>ℓ'<sup>-</sup> and ℓ<sup>+</sup>ℓ<sup>-</sup>ν ̄ν, where ℓ denotes either an electron or a muon. Their cross sections are measured and found to agree with the Standard Model predictions. In addition, the e<sup>+</sup>e<sup>-</sup> → Zγ <sup>∗</sup> → f ̄f f' ̄ f' process is studied and its total cross section at the average centre- of-mass energy (√s) = 196.6 GeV is found to be 0.29 ± 0.05 ± 0.03 pb, where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model prediction of 0.22 pb. Finally, the mass spectra of the qq ̄ℓ<sup>+</sup>ℓ<sup>-</sup> final states are analysed to search for the possible production of a new neutral heavy particle, for which no evidence is found. Facultad de Ciencias Exactas |
description |
Neutral-current four-fermion production, e<sup>+</sup>e<sup>-</sup> → f ̄f f' ̄ f', is studied in 0.7 fb<sup>−1</sup> of data collected with the L3 detector at LEP at centre-of-mass energies √s = 183–209 GeV. Four final states are considered: q ̄qν ̄ν, q ̄qℓ<sup>+</sup>ℓ<sup>-</sup>, ℓ<sup>+</sup>ℓ<sup>-</sup>ℓ'<sup>+</sup>ℓ'<sup>-</sup> and ℓ<sup>+</sup>ℓ<sup>-</sup>ν ̄ν, where ℓ denotes either an electron or a muon. Their cross sections are measured and found to agree with the Standard Model predictions. In addition, the e<sup>+</sup>e<sup>-</sup> → Zγ <sup>∗</sup> → f ̄f f' ̄ f' process is studied and its total cross section at the average centre- of-mass energy (√s) = 196.6 GeV is found to be 0.29 ± 0.05 ± 0.03 pb, where the first uncertainty is statistical and the second systematic, in agreement with the Standard Model prediction of 0.22 pb. Finally, the mass spectra of the qq ̄ℓ<sup>+</sup>ℓ<sup>-</sup> final states are analysed to search for the possible production of a new neutral heavy particle, for which no evidence is found. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-05-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/79452 |
url |
http://sedici.unlp.edu.ar/handle/10915/79452 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2005.04.062 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0) |
dc.format.none.fl_str_mv |
application/pdf 159-173 |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
collection |
SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
_version_ |
1844615993219874816 |
score |
13.070432 |