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CERN Document Server 205 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.71 sekúnd. 
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
2.
Measurement of the quark to photon fragmentation function through the inclusive production of prompt photons in hadronic $Z^0$ decays / OPAL Collaboration
The inclusive production of prompt photons with energy above 10 GeV is measured using the OPAL detector in hadronic Z^0 decays at LEP. In contrast to previous measurements, the prompt photons were not required to be isolated. [...]
hep-ex/9708020; CERN-PPE-97-086; CERN-PPE-97-86; CERN-PPE-97-086.- Geneva : CERN, 1998 - 24 p. - Published in : Eur. Phys. J. C 2 (1998) 39-48 Fulltext: PDF; External links: Fulltext; Fulltext
3.
A study of the reaction $e^{+}e^{-} \to \mu^{+}\mu^{-}$ around the $Z^{o}$ pole / Beeston, Christine Jane
CERN-DELPHI-THESIS-025 ; DELPHI-THESIS-025. - Oxford : Oxford Univ., 1992.

Full text
4.
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
5.
Precise Determination of the Z Resonance Parameters at LEP : Zedometry / OPAL Collaboration
This final analysis of hadronic and leptonic cross-sections and of leptonic forward-backward asymmetries in e+e- collisions with the OPAL detector makes use of the full LEP1 data sample comprising 161 pb^-1 of integrated luminosity and 4.5 x 10^6 selected Z decays. An interpretation of the data in terms of contributions from pure Z exchange and from Z-gamma interference allows the parameters of the Z resonance to be determined in a model-independent way. [...]
hep-ex/0012018; CERN-EP-2000-148; OPAL-PR-328; CERN-EP-2000-148.- Geneva : CERN, 2001 - 120 p. - Published in : Eur. Phys. J. C 19 (2001) 587-651 Fulltext: arXiv:hep-ex_0012018 - PDF; 0012018 - PDF; External link: Preprint - Please contact the library if you need to access this document.
6.
Measurement of the branching fractions and forward-backward asymmetries of the $Z^{0}$ into light quarks / OPAL Collaboration
1997 - Published in : Z. Phys. C 76 (1997) 387-400
7.
Search for scalar top and scalar bottom quarks at $\sqrt {s} $ = 183 GeV at LEP / OPAL Collaboration
Searches for a scalar top quark and a scalar bottom quark have been performed using a total data sample of 56.8 pb-1 at a centre-of-mass energy of 183 GeV collected with the OPAL detector at LEP. No candidate events were observed. [...]
hep-ex/9808026; CERN-EP-98-107; CERN-EP-98-107.- Geneva : CERN, 1999 - 28 p. - Published in : Eur. Phys. J. C 6 (1999) 225-238 Fulltext: 9808026 - PDF; arXiv:hep-ex_9808026 - PDF; External link: hep-ex/9808026 PDF - Please contact the library if you need to access this document.
8.
Measurement of the one-prong hadronic $\tau$ branching ratios at LEP / OPAL Collaboration
The branching ratios of the \tau^- -> h^- \nu_\tau, \tau^- -> h^- \pi^0 \nu_\tau, \tau^- -> h^- >=2 \pi^0 \nu_\tau decays have been measured using the 1991-1995 data recorded with the OPAL detector at LEP. These branching ratios are measured simultaneously using three selection criteria and are found to be BR(\tau^- -> h^- \nu_\tau) = (11.98 +/- 0.13 +/- 0.16)% BR(\tau^- -> h^- \pi^0 \nu_\tau) = (25.89 +/- 0.17 +/- 0.29)% BR(\tau^- -> h^- >=2 \pi^0 \nu_\tau) = ( 9.91 +/- 0.31 +/- 0.27)% where the first error is statistical and the second is systematic..
hep-ex/9801029; CERN-PPE-97-152; CERN-PPE-97-152.- Geneva : CERN, 1998 - 23 p. - Published in : Eur. Phys. J. C 4 (1998) 193-206 Fulltext: arXiv:hep-ex_9801029 - PDF; 9801029 - PDF; ppe-97-152 - PDF; External link: hep-ex/9801029 PDF - Please contact the library if you need to access this document.
9.
Search for the $B_c$ meson in hadronic $Z^0$ decays / OPAL Collaboration
A search for decays of the B_c meson was performed using data collected from 1990-1995 with the OPAL detector on or near the Z peak at LEP. The decay channels B_c^+ -> J/psi pi^+, B_c^+ -> J/psi a_1^+ and B_c^+ -> J/psi ell^+ nu were investigated, where ell denotes an electron or a muon. [...]
hep-ex/9801026; CERN-PPE-97-137; CERN-PPE-97-137.- Geneva : CERN, 1998 - 17 p. - Published in : Phys. Lett. B 420 (1998) 157-168 Fulltext: arXiv:hep-ex_9801026 - PDF; 9801026 - PDF; External link: Preprint - Please contact the library if you need to access this document.
10.
Search for anomalous production of photonic events with missing energy in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-172 GeV / OPAL Collaboration
Photonic events with large missing energy have been observed in e+e- collisions at centre-of-mass energies of 130, 136, 161 and 172 GeV using the OPAL detector at LEP. Results are presented based on search topologies designed to select events with a single photon and missing transverse energy or events with a pair of acoplanar photons. [...]
hep-ex/9801024; CERN-PPE-97-132; CERN-PPE-97-132.- Geneva : CERN, 1998 - 40 p. - Published in : Eur. Phys. J. C 2 (1998) 607-625 Fulltext: arXiv:hep-ex_9801024 - PDF; 9801024 - PDF; External link: hep-ex/9801024 PDF - Please contact the library if you need to access this document.

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