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CERN Document Server 168 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.78 sekúnd. 
1.
/ Sahr, Oliver
Die Bestimmung der Masse des W-Bosons ist eines der Hauptziele der zweiten Phase des Betriebs des Elektron-Positron-Beschleunigers LEP am europaischen ¨ Forschungszentrum fur¨ Elementarteilchenphysik CERN bei Genf [...]
CERN-THESIS-2001-070. - 2001. - 120 p.

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2.
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
3.
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
4.
First Results from the Cosmic-Ray Test-Facility at LMU Munich / Binder, M ; Dubbert, J ; Hertenberger, R ; Elmsheuser, J ; Kortner, O ; Rauscher, F ; Rykaczewski, M ; Sahr, O ; Schaile, A D ; Staude, A et al.
A cosmic-ray test-stand for MDT chambers has been installed at the University of Munich. [...]
ATL-MUON-2005-008 ; ATL-COM-MUON-2002-005 ; CERN-ATL-COM-MUON-2002-005.
- 2002. - 13 p.
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5.
Measurement of the mass of the W boson in $e^{+}e^{-}$ collisions using the fully leptonic channel / OPAL Collaboration
A novel method of determining the mass of the W boson in the W/sup + /W/sup -/ to l nu l' nu ' channel is presented and applied to 667 pb /sup -1/ of data recorded at center-of-mass energies in the range 183-207 GeV with the OPAL detector at LEP. The measured energies of charged leptons and the results of a new procedure based on an approximate kinematic reconstruction of the events are combined to give: M/sub W/=80.41+or-0.41+or-0.13 geV, where the first error is statistical and the second is systematic. [...]
2003 - Published in : Eur. Phys. J. C 26 (2003) 321-330
6.
A measurement of the $\tau^{-} \to \mu^{-} \nu_{\mu} \nu_{\tau}$ branching ratio / OPAL Collaboration
The tau /sup -/ to mu /sup -/ nu /sub mu / nu /sub tau / branching ratio has been measured using data collected from 1990 to 1995 by the OPAL detector at the LEP collider. The resulting value of B( tau /sup -/ to mu /sup -/ nu /sub mu / nu /sub tau /) = 0.1734 +or- 0.0009 (stat) +or- 0.0006(syst) has been used in conjunction with other OPAL measurements to test lepton universality, yielding the coupling constant ratios g/sub mu //g/sub e/ = 1.0005 +or- 0.0044 and g/sub tau //g/sub e/ = 1.0031 +or- 0.0048, in good agreement with the Standard Model prediction of unity [...]
2003 - Published in : Phys. Lett. B 551 (2003) 35-48
7.
Search for the Standard Model Higgs Boson at LEP / ALEPH Collaboration
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have collected a total of 2461 pb-1 of e+e- collision data at centre-of-mass energies between 189 and 209 GeV. The data are used to search for the Standard Model Higgs boson. [...]
hep-ex/0306033; CERN-EP-2003-011; CERN-EP-2003-011; CERN-L3-271.- Geneva : CERN, 2003 - 23 p. - Published in : Phys. Lett. B 565 (2003) 61-75 Fulltext: S0370269303006142 - XML; arXiv:hep-ex_0306033 - PDF; ep-2003-011 - PDF; External link: Preprint - Please contact the library if you need to access this document.
8.
Bose-Einstein Correlations of $\pi^{0}$ Pairs from Hadronic $Z^{0}$ Decays / OPAL Collaboration
We observed Bose-Einstein correlation in pi0 pairs produced in Z0 decays using the data sample collected by the OPAL detector at LEP 1 from 1991 to 1995. Using a static Gaussian picture for the pion emitter source, we obtain the chaoticity parameter lambda = 0.55 +- 0.10 +- 0.10 and the source radius R = (0.59 +- 0.08 +- 0.05) fm. [...]
hep-ex/0302027; CERN-EP-2003-005; CERN-EP-2003-005.- Geneva : CERN, 2003 - 19 p. - Published in : Phys. Lett. B 559 (2003) 131-143 Fulltext: arXiv:hep-ex_0302027 - PDF; ep-2003-005 - PDF; S037026930300337X - XML; External link: Preprint - Please contact the library if you need to access this document.
9.
A Measurement of Semileptonic B Decays to Narrow Orbitally-Excited Charm Mesons / OPAL Collaboration
The decay chain b -> Bbar -> D^{**0} l nu X, D^{**0} -> D^{*+} pi^-, D^{*+} -> D^0 pi^+, D^0 ->(Kpi or K3pi) is identified in a sample of 3.9 million hadronic Z decays collected with the OPAL detector at LEP. The branching ratio BR (b -> Bbar) x BR (Bbar -> D^0_1 l nu X) x BR (D^0_1 -> D^{*+} pi^-) is measured to be (2.64 +- 0.79 (stat) +- 0.39 (syst)) X 10^-3 for the J^P = 1^+ (D^0_1) state. [...]
hep-ex/0301018; CERN-EP-2002-094; CERN-EP-2002-094.- Geneva : CERN, 2003 - 20 p. - Published in : Eur. Phys. J. C 30 (2003) 467-475 Fulltext: ep-2002-094 - PDF; arXiv:hep-ex_0301018 - PDF; External link: Preprint - Please contact the library if you need to access this document.
10.
Di-Jet Production in Photon-Photon colisions at $\sqrt{s_{ee}}$ from 189 to 209 GeV / OPAL Collaboration
Di-jet producion is studied in collisions of quasi-real photons at e+e- centre- of-mass energies sqrt(s)ee from 189 to 209 GeV at LEP. The data were collected with the OPAL detector. [...]
hep-ex/0301013; CERN-EP-2002-093; CERN-EP-2002-093.- Geneva : CERN, 2003 - 46 p. - Published in : Eur. Phys. J. C 31 (2003) 307-325 Fulltext: ep-2002-093 - PDF; arXiv:hep-ex_0301013 - PDF; External links: Fulltext; Rivet analyses reference - Please contact the library if you need to access this document.

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