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CERN Document Server Намерени са 258 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.63 секунди. 
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.
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
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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
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4.
A measurement of the $\tau- \to K-\nu\tau$ branching ratio using the OPAL detector at LEP / Towers, S
Geneva : CERN, 1993.
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5.
Tau decays with charged kaons at OPAL / Towers, S (Ottawa-Carleton Inst for Phys)
From an analysis of the ionisation energy loss of charged particles selected from tau pair candidates recorded in the OPAL detector at centre-of-mass energies near the Z/sup 0/ resonance, we determine competitive measurements of the tau /sup -/ to nu /sub tau /K/sup - />or=0h/sup 0/ branching ratio, where the h/sup 0/ notation refers to a pi /sup 0/, an eta , a K/sub S//sup 0/, or a K/sub L//sup 0/. We also determine the tau /sup -/ to nu /sub tau /K/sup -/ pi /sup -/ pi /sup +/( pi /sup 0/) and tau /sup -/ to nu /sub tau /K/sup -/ pi /sup -/K/sup +/( pi /sup 0/) branching fractions, where the ( pi /sup 0/) notation refers to decay modes with or without an accompanying pi /sup 0/. [...]
2001 - Published in : Int. J. Mod. Phys. A 16 (2001) 561-5
In : Meeting of the Division of Particles and Fields of the American Physical Society, Columbus, OH, USA, 9 - 12 Aug 2000, pp.561-5
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6.
A Study Of Decays Of The Tau Lepton With Charged Kaons / Towers, S
Precise studies of the decays of the tau (tau-) lepton have been made possible by the availability of large, low-background tau samples, such as those produced in e+e- collisions at the Z0 resonance at LEP [...]
CERN-THESIS-2000-074. - Carleton : Carleton Univ., 2000. - 153 p.

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7.
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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8.
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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9.
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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10.
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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CERN Document Server : Намерени са 258 записа   1 - 10следващкрай  отиване на запис:
Виж също: автори с подобни имена
1 Towers, S J
127 Towers, S.
1 Towers, Sarah
1 Towers, Sarah E
2 Towers, Sherry
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