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CERN Document Server Encontrados 128 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.74 segundos. 
1.
Bose-Einstein correlations in W+ W- events at LEP2 / van Dalen, Jorn A (Nijmegen U.)
Analyses of Bose-Einstein Correlations in w+w- events at LEP2 by the four LEP collaborations are presented. In particular, Bose-Einstein correlations in w+w- overlap are investigated and the possible existence of these correlations between particles coming from different W's, which may influence the W mass measurements in the fully-hadronic channel e+e- --+ w+w- --+ qiihq3ij<. [...]
2000 - 6 p. - Published in : , pp. 233-238 fulltext: PDF;
In : 35th Rencontres de Moriond, Les Arcs, France, 18 - 25 Mar 2000, pp.233-238
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2.
Search for Charged Higgs bosons: Combined Results Using LEP data / ALEPH, DELPHI, L3 and OPAL Collaborations
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for pair-produced charged Higgs bosons in the framework of Two Higgs Doublet Models (2HDMs). The data of the four experiments are statistically combined. [...]
arXiv:1301.6065; CERN-PH-EP-2012-369; CERN-PH-EP-2012-369; LHWG-Note-2012-01; ALEPH-2012-001-PHYSICS-2012-001; DELPHI-2012-001-PHYS-953; L3-Note-2835; OPAL-PR433.- Geneva : CERN, 2013 - 18 p. - Published in : Eur. Phys. J. C 73 (2013) 2463 Draft (restricted): PDF; Fulltext: CERN-PH-EP-2012-369 - PDF; arXiv:1301.6065 - PDF; External link: Preprint
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3.
Measurement of the mass and the width of the W boson at LEP / L3 Collaboration
The mass and the total decay width of the W boson are measured with the L3 detector at the LEP e+e- collider using W-boson pairs produced in 0.7/fb of data collected at centre-of-mass energies between 161 and 209GeV. Combining semi-leptonic and fully-hadronic final states, the mass and the width of the W boson are determined to be mW = 80.270 +/- 0.046 +/- 0.031 GeV and GW = 2.18 +/- 0.11 +/- 0.09 GeV, where the first uncertainty is statistical and the second systematic..
hep-ex/0511049; CERN-PH-EP-2005-043; CERN-L3-303; CERN-PH-EP-2005-043.- Geneva : CERN, 2006 - 37 p. - Published in : Eur. Phys. J. C 45 (2006) 569-587 Fulltext: cer-002580303 - PDF; arXiv:hep-ex_0511049 - PDF; External link: Preprint
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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
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5.
Measurement of Branching Fractions of $\tau$ Hadronic Decays / L3 Collaboration
Using data collected with the L3 detector at LEP at the Z peak, the branching fractions of the $\tau$ lepton into the hadronic final states, $h^- n\pi^0 \nu(n=0,1,2, >= 3)$ and $h^-h^+h^- n\pi^0 \nu$ where $h^\pm$ denotes a charged hadron, are measured to be .....
CERN-EP-2003-019 ; CERN-L3-270. - 2003. - 17 p.
Fulltext - Fulltext
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6.
Study of Spin and Decay-Plane Correlations of W Bosons in the $e^{+} e^{-} \to W^{+} W^{-}$ Process at LEP / L3 Collaboration
Data collected at LEP at centre-of-mass energies \sqrt(s) = 189 - 209 GeV are used to study correlations of the spin of W bosons using e+e- -> W+W- -> lnqq~ events. Spin correlations are favoured by data, and found to agree with the Standard Model predictions. [...]
hep-ex/0501036; CERN-EP-2003-072; CERN-EP-2003-072; CERN-L3-282.- Geneva : CERN, 2005 - 16 p. - Published in : Eur. Phys. J. C 40 (2005) 333-341 Fulltext: arXiv:hep-ex_0501036 - PDF; ep-2003-072 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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7.
Inclusive Jet Production in Two-Photon Collisions at LEP / L3 Collaboration
Inclusive jet production, e+e- -> e+e- \ee$ jet X, is studied using 560/pb of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. The inclusive differential cross section is measured using a k_t jet algorithm as a function of the jet transverse momentum, pt, in the range 3<pt<50 GeV for a pseudorapidity, eta, in the range -1<eta<1. [...]
hep-ex/0410012; CERN-EP-2003-055; CERN-EP-2003-055; CERN-L3-275.- Geneva : CERN, 2004 - 16 p. - Published in : Phys. Lett. B 602 (2004) 157-166 Fulltext: S0370269304014170 - XML; cer-002486354 - PDF; arXiv:hep-ex_0410012 - PDF; External links: Fulltext; Rivet analyses reference - Please contact the library if you need to access this document.
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8.
Measurement of the Cross Section of W-boson pair production at LEP / L3 Collaboration
The cross section of W-boson pair-production is measured with the L3 detector at LEP. In a data sample corresponding to a total luminosity of 629.4/pb, collected at centre-of-mass energies ranging from 189 to 209 GeV, 9834 four-fermion events with W bosons decaying into hadrons or leptons are selected. [...]
hep-ex/0409016; CERN-PH-EP-2004-026; CERN-L3-291; CERN-PH-EP-2004-026.- Geneva : CERN, 2004 - 27 p. - Published in : Phys. Lett. B 600 (2004) 22-40 Fulltext: arXiv:hep-ex_0409016 - PDF; 0409016 - PDF; S0370269304012493 - XML; External link: Preprint - Please contact the library if you need to access this document.
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9.
Measurement of Exclusive $\rho^+ \rho^-$ Production in High-$Q^2$ Two-Photon Collisions at LEP / L3 Collaboration
Exclusive rho^+ rho^- production in two-photon collisions involving a single highly-virtual photon is studied with data collected at LEP at centre-of-mass energies 89 GeV < \sqrt{s} < 209 GeV with a total integrated luminosity of 854.7 pb^-1. The cross section of the process gamma gamma^* -> rho^+ rho^- is determined as a function of the photon virtuality, Q^2, and the two-photon centre-of-mass energy, W_gg, in the kinematic region: 1.2 GeV^2 < Q^2 < 30 GeV^2 and 1.1 GeV < W_gg < 3 GeV. [...]
hep-ex/0407020; CERN-PH-EP-2004-005; CERN-L3-287; CERN-PH-EP-2004-005.- Geneva : CERN, 2004 - 18 p. - Published in : Phys. Lett. B 597 (2004) 26-38 Fulltext: S0370269304010391 - XML; 0407020 - PDF; arXiv:hep-ex_0407020 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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10.
Search for Branons at LEP / L3 Collaboration
We search, in the context of extra-dimension scenarios, for the possible existence of brane fluctuations, called branons. Events with a single photon or a single Z-boson and missing energy and momentum collected with the L3 detector in e^+ e^- collisions at centre-of-mass energies sqrt{s}=189-209$ GeV are analysed. [...]
hep-ex/0407017; CERN-PH-EP-2004-016; CERN-L3-289; CERN-PH-EP-2004-016.- Geneva : CERN, 2004 - 14 p. - Published in : Phys. Lett. B 597 (2004) 145-154 Fulltext: arXiv:hep-ex_0407017 - PDF; 0407017 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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