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CERN Document Server 97 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.70 segons. 
1.
Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP / ALEPH Collaboration
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 $209~GeV$ [...]
arXiv:1302.3415; CERN-PH-EP-2013-022; CERN-PH-EP-2013-022.- Geneva : CERN, 2013 - 126 p. - Published in : Phys. Rep. 532 (2013) 119-244 Draft (restricted): PDF; Fulltext: CERN-PH-EP-2013-022 - PDF; arXiv:1302.3415 - PDF; External link: Preprint
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2.
Precision electroweak measurements on the $Z$ resonance / ALEPH Collaboration
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17 million Z decays accumulated by the ALEPH, DELPHI, L3 and OPAL experiments at LEP, and 600 thousand Z decays by the SLD experiment using a polarised beam at SLC. [...]
hep-ex/0509008; SLAC-R-774; CERN-PH-EP-2005-041; SLAC-R-774; CERN-L3-304.- Geneva : CERN, 2006 - 302 p. ALEPH Papers - Published in : Phys. Rep. 427 (2006) 257 Fulltext: phep-2005-041 - PDF; arXiv:hep-ex_0509008 - PDF; External link: SLAC Document Server
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3.
Determination of the b Quark Mass at the Z Mass Scale / OPAL Collaboration
In hadronic decays of Z bosons recorded with the OPAL detector at LEP, events containing b quarks were selected using the long lifetime of b flavoured hadrons. Comparing the 3-jet rate in b events with that in d u,s and c quark events, a significant difference was observed. [...]
hep-ex/0105046; CERN-EP-2001-034; CERN-EP-2001-034.- Geneva : CERN, 2001 - 27 p. - Published in : Eur. Phys. J. C 21 (2001) 411-422 Fulltext: 0105046 - PDF; arXiv:hep-ex_0105046 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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4.
Search for Single Leptoquark and Squark Production in Electron-Photon Scattering at $\sqrt{s_{ee}}$ = 189 GeV at LEP / OPAL Collaboration
A search for first generation scalar and vector leptoquarks (LQ) as well as for squarks in R-parity violating SUSY models has been performed using e+e- collisions collected with the OPAL detector at LEP at an e+e- centre-of-mass energy sqrt(s_ee) of 189 GeV. The data correspond to an integrated luminosity of about 160 pb-1. [...]
hep-ex/0106031; CERN-EP-2001-040; CERN-EP-2001-040.- Geneva : CERN, 2002 - 27 p. - Published in : Eur. Phys. J. C 23 (2002) 1-11 Fulltext: 0106031 - PDF; arXiv:hep-ex_0106031 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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5.
Bestimmung des Wirkungsquerschnitts hadronisch zerfallender W-Paare unter Verwendung eines neuronalen Netzwerks / Liebisch, R
Heidelberg : Heidelberg Univ., 2001.
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6.
Precision Neutral Current Asymmetry Parameter Measurements from the Tau Polarization at LEP / OPAL Collaboration
Measurements of the tau lepton polarization and forward-backward polarization asymmetry near the Z resonance using the OPAL detector are described. The measurements are based on analyses of tau -> e nu_e nu_tau, tau -> mu nu_mu nu_tau, tau -> pi nu_tau, tau -> rho nu_tau and tau -> a1 nu_tau decays from a sample of 144810 e+e- -> tau+ tau- candidates corresponding to an integrated luminosity of 151 pb-1. [...]
hep-ex/0103045; CERN-EP-2001-023; CERN-EP-2001-023.- Geneva : CERN, 2001 - 36 p. - Published in : Eur. Phys. J. C 21 (2001) 1-21 Fulltext: 0103045 - PDF; arXiv:hep-ex_0103045 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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7.
Measurement of the Branching Ratio for $D_{s} \to \tau\nu_{\tau}$ Decays / OPAL Collaboration
Using about 3.9 million hadronic Z decays from e+e- collisions recorded by the OPAL detector at LEP at centre-of-mass energies near MZ the branching ratio for the decay D_s -> tau nu_tau has been measured to be (7.0 +/- 2.1(stat) +/- 2.0 (syst))%. This result can be used to derive the decay constant of the D_s meson: f(D_s) = 286 +/- 44(stat) +/- 41(syst) MeV..
hep-ex/0103012; CERN-EP-2001-019; CERN-EP-2001-019.- Geneva : CERN, 2001 - 23 p. - Published in : Phys. Lett. B 516 (2001) 236-248 Fulltext: 0103012 - PDF; arXiv:hep-ex_0103012 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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8.
A Search for a Narrow Radial Excitation of the $D^{*\pm}$ Meson / OPAL Collaboration
A sample of 3.73 million hadronic Z decays, recorded with the OPAL detector at LEP in the years 1991-95, has been used to search for a narrow resonance corresponding to the decay of the D*'+/-(2629) meson into D*+/- pi+ pi-. The D*+ mesons are reconstructed in the decay channel D*+ -> D0 pi+ with D0 -> K- pi+ [...]
hep-ex/0101045; CERN-EP-2001-003; CERN-EP-2001-003.- Geneva : CERN, 2001 - 21 p. - Published in : Eur. Phys. J. C 20 (2001) 445-454 Fulltext: arXiv:hep-ex_0101045 - PDF; 0101045 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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9.
A Simultaneous Measurement of the QCD Colour Factors and the Strong Coupling / OPAL Collaboration
Using data from e+e- annihilation into hadrons, taken with the OPAL detector at LEP at the Z pole between 1991 and 1995, we performed a simultaneous measurement of the colour factors of the underlying gauge group of the strong interaction, CF and CA, and the strong coupling, alpha(s). The measurement was carried out by fitting next-to-leading order perturbative predictions to measured angular correlations of 4-jet events together with multi-jet related variables. [...]
hep-ex/0101044; CERN-EP-2001-001; CERN-EP-2001-001.- Geneva : CERN, 2001 - 29 p. - Published in : Eur. Phys. J. C 20 (2001) 601-615 Fulltext: arXiv:hep-ex_0101044 - PDF; 0101044 - PDF; External links: Fulltext; Rivet analyses reference - Please contact the library if you need to access this document.
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10.
Search for the Standard Model Higgs Boson in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 192-209 GeV / OPAL Collaboration
A search for the Standard Model Higgs boson has been performed with the OPAL detector at LEP based on the full data sample collected at sqrt(s) = 192-209 GeV in 1999 and 2000, corresponding to an integrated luminosity of approximately 426 pb-1. The data are examined for their consistency with the background-only hypothesis and various Higgs boson mass hypotheses. [...]
hep-ex/0101014; CERN-EP-2000-156; CERN-EP-2000-156.- Geneva : CERN, 2001 - 20 p. - Published in : Phys. Lett. B 499 (2001) 38-52 Fulltext: 0101014 - PDF; arXiv:hep-ex_0101014 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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