Measurement of the effective weak mixing angle by jet-charge asymmetry in hadronic decays of the Z boson
The coupling of the Z boson to quarks is studied in a sample of about 3.5 million hadronic Z decays collected by the L3 experiment at LEP from 1991 to 1995. The forward–backward quark charge asymmetry is measured by means of a jet charge technique. From the measured asymmetries, the effective weak m...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1998 |
| País: | Argentina |
| Institución: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/78038 |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/78038 |
| Access Level: | acceso abierto |
| Palabra clave: | Ciencias Exactas Z boson hadronic Z decays L3 experiment Física |
| Sumario: | The coupling of the Z boson to quarks is studied in a sample of about 3.5 million hadronic Z decays collected by the L3 experiment at LEP from 1991 to 1995. The forward–backward quark charge asymmetry is measured by means of a jet charge technique. From the measured asymmetries, the effective weak mixing angle is determined to be <math><mtext>sin</mtext><msup><mi></mi><mn>2</mn></msup><mtext>θ</mtext><msub><mi></mi><mn><mtext>W</mtext></mn></msub><mtext>=0.2327±0.0012(stat.)±0.0013(syst.)</mtext></math>. |
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