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CERN Document Server 找到 2,051 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.98 秒. 
1.
(100)
Search for Single Top Production in $e^{+} e^{-}$ Collisions at $\sqrt{s}$ up to 209 GeV / ALEPH Collaboration
Single top production via the flavour changing neutral current reactions e+e- -> \bar{t}c , \bar{t}u is searched for within the 214~pb-1 of data collected by ALEPH at centre-of-mass energies between 204 and 209~GeV. No deviation from the Standard Model expectation is observed and upper limits on the single top production cross sections are derived. [...]
hep-ex/0206070; CERN-EP-2002-042; CERN-EP-2002-042.- Geneva : CERN, 2002 - 11 p. ALEPH Papers - Published in : Phys. Lett. B 543 (2002) 173-182 Fulltext: ep-2002-042_fig3 - EPS; ep-2002-042_fig4 - EPS; ep-2002-042_fig1a - EPS; ep-2002-042_fig1b - EPS; arXiv:hep-ex_0206070 - PDF; S0370269302023079 - XML; ep-2002-042 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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2.
(91)
Test of Colour Reconnection Models using Three-Jet Events in Hadronic Z Decays / ALEPH Collaboration
Hadronic Z decays into three jets are used to test QCD models of colour reconnection (CR). A sensitive quantity is the rate of gluon jets with a gap in the particle rapidity distribution and zero jet charge. [...]
hep-ex/0604042; CERN-PH-EP-2006-020; CERN-PH-EP-2006-020.- Geneva : CERN, 2006 - 21 p. ALEPH Papers - Published in : Eur. Phys. J. C 48 (2006) 685-698 Fulltext: phep-2006-020 - PDF; arXiv:hep-ex_0604042 - PDF; External link: Preprint
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3.
(88)
Search for R-Parity Violating Production of Single Sneutrinos in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 189-209 GeV / ALEPH Collaboration
A search for single sneutrino production under the assumption that $R$-parity is violated via a single dominant $LL\bar{E}$ coupling is presented. This search considers the process ${\rm e} \gamma \;{\smash{\mathop{\rightarrow}}}\;\tilde{\nu}\ell$ and is performed using the data collected by the ALEPH detector at centre-of-mass energies from 189\,GeV up to 209\,GeV corresponding to an integrated luminosity of 637.1\,$\mathrm{pb}^{-1}$. [...]
hep-ex/0201013; CERN-EP-2001-094; CERN-EP-2001-094.- Geneva : CERN, 2002 - 22 p. ALEPH Papers - Published in : Eur. Phys. J. C 25 (2002) 1-12 Fulltext: ep-2001-094 - PDF; arXiv:hep-ex_0201013 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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4.
(84)
Leptonic decays of the $D_s$ meson / ALEPH Collaboration
The purely leptonic decays Ds -> tau nu and Ds -> mu nu are studied in a sample of four million hadronic Z decays collected with the ALEPH detector at the LEP e+e- collider from 1991 to 1995. The branching fractions are extracted from a combination of two analyses, one optimized to select Ds -> tau nu decays with tau -> e nu nubar or mu nu nubar, and the other optimized for Ds-> mu nu decays. [...]
hep-ex/0201024; CERN-EP-2002-001; CERN-EP-2002-001.- Geneva : CERN, 2002 - 27 p. ALEPH Papers - Published in : Phys. Lett. B 528 (2002) 1-18 Fulltext: arXiv:hep-ex_0201024 - PDF; ep-2002-001 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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5.
(83)
Fermion pair production in $e^+e^-$ collisions at 189-209 GeV and constraints on physics beyond the Standard Model / ALEPH Collaboration
Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e+e- collisions at centre-of-mass energies from 189 to 209 GeV at LEP, measured with the ALEPH detector. Results for e+e-, mu+mu-, tau+tau-, qq, bb and cc production are in agreement with the Standard Model predictions. [...]
hep-ex/0609051; CERN-PH-EP-2006-035.- Geneva : CERN, 2007 - 61 p. ALEPH Papers - Published in : Eur. Phys. J. C 49 (2007) 411-437 Fulltext: 0609051 - PDF; 0609051_REPLACED_ON_20070713 - PDF; arXiv:hep-ex_0609051 - PDF; External link: hep-ex/0609051 PDF
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6.
(83)
Search for neutral Higgs bosons decaying into four taus at LEP2 / ALEPH Collaboration
A search for the production and non-standard decay of a Higgs boson, h, into four taus through intermediate pseudoscalars, a, is conducted on 683 pb-1 of data collected by the ALEPH experiment at centre-of-mass energies from 183 to 209 GeV. No excess of events above background is observed, and exclusion limits are placed on the combined production cross section times branching ratio, \xi^2 = \sigma(e+e- --> Zh)/\sigma_{SM}(e+e- --> Zh) x B(h --> aa)x B(a --> \tau^+\tau^-)^2. [...]
arXiv:1003.0705; CERN-PH-EP-2010-005.- 2010 - 18 p. ALEPH Papers - Published in : JHEP 05 (2010) 049 Fulltext: arXiv:1003.0705 - PDF; cern-ph-ep-2010-005 - PDF; Springer Open Access article: PDF; External link: Preprint
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7.
(83)
Measurement of the W boson Mass and Width in $e^{+}e^{-}$ Collisions at LEP / ALEPH Collaboration
The mass of the W boson is determined from the direct reconstruction of its decays into purely hadronic and semi-leptonic events in e+e- collisions at LEP. The data sample corresponds to an integrated luminosity of 683 inverse picobarns collected with the ALEPH detector at centre-of-mass energies up to 209 GeV [...]
hep-ex/0605011; CERN-PH-EP-2006-004; CERN-PH-EP-2006-004.- Geneva : CERN, 2006 - 45 p. ALEPH Papers - Published in : Eur. Phys. J. C 47 (2006) 309-335 Fulltext: 0605011 - PDF; arXiv:hep-ex_0605011 - PDF; phep-2006-004 - PDF; External link: Preprint
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8.
(83)
Study of hadronic final states from double tagged $gammagamma$ events at LEP / ALEPH Collaboration
The interaction of virtual photons is investigated using double tagged gammagamma events with hadronic final states recorded by the ALEPH experiment at e^+e^- centre-of-mass energies between 188 and 209 GeV. [...]
hep-ex/0305107 ; CERN-EP-2003-025 ; CERN-EP-2003-025. - 2003. - 22 p.
Preprint - Full text - Fulltext - Fulltext
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9.
(83)
Measurement of the Cross Section for open b-Quark Production in Two-Photon Interactions at LEP / ALEPH Collaboration
Inclusive \beauty-quark production in two-photon collisions has been measured at LEP using an integrated luminosity of $698\mathrm{pb}^{-1}\,$ collected by the ALEPH detector with $\sqrt{s}$ between 130 and 209 \GeV . The b quarks were identified using lifetime information. [...]
arXiv:0706.3150; CERN-PH-EP-2007-020; CERN-PH-EP-2007-020.- Geneva : CERN, 2007 - 15 p. ALEPH Papers - Published in : JHEP 09 (2007) 102 Fulltext: arXiv:0706.3150 - PDF; JHEP09(2007)102 - PDF; phep-2007-020 - PDF; SISSA/IOP Open Access article: PDF; External link: Preprint
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10.
(83)
Search for stable hadronizing squarks and gluinos in $e^{+} e^{-}$ collisions up to $\sqrt{s}$ = 209 GeV / ALEPH Collaboration
Searches for stable, hadronizing scalar quarks and gluinos are performed using the data collected with the ALEPH detector at LEP. Gluon splitting into a gluino or a squark pair is searched for at centre-of-mass energies around the Z resonance, in the e+e- -> q qbar gluino gluino and q qbar squark antisquark processes. [...]
hep-ex/0305071; CERN-EP-2003-024; CERN-EP-2003-024.- Geneva : CERN, 2003 - 26 p. ALEPH Papers - Published in : Eur. Phys. J. C 31 (2003) 327-342 Fulltext: arXiv:hep-ex_0305071 - PDF; 0305071 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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