Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F13%3A00381046" target="_blank" >RIV/68407700:21670/13:00381046 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/13:10193558

Výsledek na webu

<a href="https://doi.org/10.1016/j.physrep.2013.07.004" target="_blank" >https://doi.org/10.1016/j.physrep.2013.07.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.physrep.2013.07.004" target="_blank" >10.1016/j.physrep.2013.07.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP

Popis výsledku v původním jazyce

Electroweak measurements performed with data taken at the electron–positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3 fb -1 collected by the four LEP experiments ALEPH, DELPHI, L3 and OPAL, at centre-of-mass energies ranging from 130 GeV to 209 GeV. Combining the published results of the four LEP experiments, the measurements include total and differential cross-sections in photon-pair, fermion-pair and four-fermion production, the latter resulting from both double-resonant WW and ZZ production as well as singly resonant production. Total and differential cross-sections are measured precisely, providing a stringent test of the Standard Model at centre-of-mass energies never explored before in electron–positron collisions. Final-state interaction effects in four-fermion production, such as those arising from colour reconnection and Bose–Einstein correlations between the two W decay systems arising in WW production, are searched for and upper limits on the strength of possible effects are obtained. The data are used to determine fundamental properties of the W boson and the electroweak theory. Among others, the mass and width of the W boson, mW and ΓW , the branching fraction of W decays to hadrons, B(W->had) , and the trilinear gauge-boson self-couplings g1Z , κγ and λγ are determined to be: mW=80.376±0.033GeV ΓW=2.195±0.083GeV B(W->had)=67.41±0.27%

Název v anglickém jazyce

Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP

Popis výsledku anglicky

Electroweak measurements performed with data taken at the electron–positron collider LEP at CERN from 1995 to 2000 are reported. The combined data set considered in this report corresponds to a total luminosity of about 3 fb -1 collected by the four LEP experiments ALEPH, DELPHI, L3 and OPAL, at centre-of-mass energies ranging from 130 GeV to 209 GeV. Combining the published results of the four LEP experiments, the measurements include total and differential cross-sections in photon-pair, fermion-pair and four-fermion production, the latter resulting from both double-resonant WW and ZZ production as well as singly resonant production. Total and differential cross-sections are measured precisely, providing a stringent test of the Standard Model at centre-of-mass energies never explored before in electron–positron collisions. Final-state interaction effects in four-fermion production, such as those arising from colour reconnection and Bose–Einstein correlations between the two W decay systems arising in WW production, are searched for and upper limits on the strength of possible effects are obtained. The data are used to determine fundamental properties of the W boson and the electroweak theory. Among others, the mass and width of the W boson, mW and ΓW , the branching fraction of W decays to hadrons, B(W->had) , and the trilinear gauge-boson self-couplings g1Z , κγ and λγ are determined to be: mW=80.376±0.033GeV ΓW=2.195±0.083GeV B(W->had)=67.41±0.27%

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physics Reports

ISSN

0370-1573

e-ISSN

1873-6270

Svazek periodika

532

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

126

Strana od-do

119-244

Kód UT WoS článku

000328723800001

EID výsledku v databázi Scopus

2-s2.0-84887615079