Measurement of the running of the fine-structure constant

Autores: Dova, María Teresa; L3 Collaboration
Año de publicación: 2000
Idioma: inglés
Tipo de recurso: artículo
Estado: versión publicada
Descripción: Small-angle Bhabha scattering data recorded at the Z resonance and large-angle Bhabha scattering data recorded at 's s189 GeV by the L3 detector at LEP are used to measure the running of the effective fine-structure constant for spacelike momentum transfers. The results are $α^{−1} (−2.1 GeV^{2})−α^{−1} (−6.25 GeV^{2})=0.78±0.26$ $α^{−1} (−12.25 GeV^{2})−α^{−1} (−3434 GeV^{2})=3.80±1.29,$ in agreement with theoretical predictions.
Facultad de Ciencias Exactas
Materia: Ciencias Exactas
Física
fine-structure
Bhabha scattering data
LEP
Nivel de accesibilidad: acceso abierto
Condiciones de uso: http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Institución: Universidad Nacional de La Plata
OAI Identificador: oai:sedici.unlp.edu.ar:10915/75551

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network_name_str	SEDICI (UNLP)
spelling	Measurement of the running of the fine-structure constantDova, María TeresaL3 CollaborationCiencias ExactasFísicafine-structureBhabha scattering dataLEPSmall-angle Bhabha scattering data recorded at the Z resonance and large-angle Bhabha scattering data recorded at 's s189 GeV by the L3 detector at LEP are used to measure the running of the effective fine-structure constant for spacelike momentum transfers. The results are <math><mtext>α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−2.1</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)−α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−6.25</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)=0.78±0.26</mtext></math> <math><mtext>α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−12.25</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)−α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−3434</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)=3.80±1.29,</mtext></math> in agreement with theoretical predictions.Facultad de Ciencias Exactas2000-03-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf40-48http://sedici.unlp.edu.ar/handle/10915/75551enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(00)00122-2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:53:05Zoai:sedici.unlp.edu.ar:10915/75551Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:53:05.895SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv	Measurement of the running of the fine-structure constant
title	Measurement of the running of the fine-structure constant
spellingShingle	Measurement of the running of the fine-structure constant Dova, María Teresa Ciencias Exactas Física fine-structure Bhabha scattering data LEP
title_short	Measurement of the running of the fine-structure constant
title_full	Measurement of the running of the fine-structure constant
title_fullStr	Measurement of the running of the fine-structure constant
title_full_unstemmed	Measurement of the running of the fine-structure constant
title_sort	Measurement of the running of the fine-structure constant
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 fine-structure Bhabha scattering data LEP
topic	Ciencias Exactas Física fine-structure Bhabha scattering data LEP
dc.description.none.fl_txt_mv	Small-angle Bhabha scattering data recorded at the Z resonance and large-angle Bhabha scattering data recorded at 's s189 GeV by the L3 detector at LEP are used to measure the running of the effective fine-structure constant for spacelike momentum transfers. The results are <math><mtext>α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−2.1</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)−α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−6.25</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)=0.78±0.26</mtext></math> <math><mtext>α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−12.25</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)−α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−3434</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)=3.80±1.29,</mtext></math> in agreement with theoretical predictions. Facultad de Ciencias Exactas
description	Small-angle Bhabha scattering data recorded at the Z resonance and large-angle Bhabha scattering data recorded at 's s189 GeV by the L3 detector at LEP are used to measure the running of the effective fine-structure constant for spacelike momentum transfers. The results are <math><mtext>α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−2.1</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)−α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−6.25</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)=0.78±0.26</mtext></math> <math><mtext>α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−12.25</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)−α</mtext><msup><mi></mi><mn>−1</mn></msup><mtext>(−3434</mtext><mspace sp="0.4" width="2px" linebreak="nobreak" is="true"></mspace><mtext>GeV</mtext><msup><mi></mi><mn>2</mn></msup><mtext>)=3.80±1.29,</mtext></math> in agreement with theoretical predictions.
publishDate	2000
dc.date.none.fl_str_mv	2000-03-09
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/10915/75551
url	http://sedici.unlp.edu.ar/handle/10915/75551
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/S0370-2693(00)00122-2
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv	openAccess
rights_invalid_str_mv	http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv	application/pdf 40-48
dc.source.none.fl_str_mv	reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP
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repository.name.fl_str_mv	SEDICI (UNLP) - Universidad Nacional de La Plata
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Measurement of the running of the fine-structure constant

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