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CERN Document Server 找到 2,050 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 3.08 秒. 
1.
(100)
Measurement of W-pair production in $e^{+}e^{-}$ collisions at 183 GeV / ALEPH Collaboration
The production of W+W- pairs is analysed in a data sample collected by ALEPH at a mean centre-of-mass energy of 182.7 GeV, corresponding to an integrated luminosity of 57 pb-1. Cross sections are given for different topologies of W decays into leptons or hadrons. [...]
hep-ex/9903053; CERN-EP-99-035; CERN-EP-99-35; CERN-EP-99-035.- Geneva : CERN, 1999 - 18 p. ALEPH Papers - Published in : Phys. Lett. B 453 (1999) 107-120 Fulltext: arXiv:hep-ex_9903053 - PDF; ep-99-035 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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2.
(91)
Measurement of W-pair production in $e^{+}e^{-}$ collisions at 189 GeV / ALEPH Collaboration
The production of W-pairs is analysed in a data samplecollected by ALEPH at a mean centre-of-mass energy of 188.6 GeV,corresponding to an integrated luminosity of 174.2 pb^-1. Crosssections are given for different topologies of W decays intoleptons or hadrons. [...]
hep-ex/0005043; CERN-EP-2000-052; CERN-ALEPH-99-064; CERN-EP-2000-052.- Geneva : CERN, 2000 - 18 p. ALEPH Papers - Published in : Phys. Lett. B 484 (2000) 205-217 Fulltext: arXiv:hep-ex_0005043 - PDF; ep-2000-052 - PDF; External link: Preprint
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 146 - Please contact the library if you need to access this document.
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3.
(64)
Study of the fragmentation of $b$ quarks into $B$ mesons at the $Z$ peak / ALEPH Collaboration
The fragmentation of b quarks into B mesons is studied with four million hadronic Z decays collected by the ALEPH experiment during the years 1991-1995. A semi-exclusive reconstruction of B->l nu D(*) decays is performed, by combining lepton candidates with fully reconstructed D(*) mesons while the neutrino energy is estimated from the missing energy of the event. [...]
hep-ex/0106051; CERN-EP-2001-039; CERN-EP-2001-039.- Geneva : CERN, 2001 - 25 p. ALEPH Papers - Published in : Phys. Lett. B 512 (2001) 30-48 Fulltext: ep-2001-039 - PDF; arXiv:hep-ex_0106051 - PDF; External links: Fulltext; Rivet analyses reference - Please contact the library if you need to access this document.
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4.
(62)
Measurement of the $e^{+}e^{-} \to ZZ$ Production Cross Section at Centre-of-Mass Energies of 183 and 189 GeV / ALEPH Collaboration
The ee -> ZZ cross section at sqrt(s)=182.7 and 188.6 GeV has been measured using the ALEPH detector. The analysis covers all of the visible ZZ final states and yields cross section measurements of sigma_ZZ(182.7 GeV) = 0.11 +- (0.16,0.11) (stat.) +- 0.04 (syst.) pb and sigma_ZZ(188.6 GeV) = 0.67 +- 0.13 (stat.) +- 0.04 (syst.) pb consistent with the Standard Model expectations..
hep-ex/9911003; CERN-EP-99-141; CERN-EP-99-141.- Geneva : CERN, 1999 - 22 p. ALEPH Papers - Published in : Phys. Lett. B 469 (1999) 287-302 Fulltext: ep-99-141 - PDF; arXiv:hep-ex_9911003 - PDF; External link: DURHAM
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 145 - Please contact the library if you need to access this document.
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5.
(60)
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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6.
(59)
Measurement of $A^{b}_{FB}$ using Inclusive $b$-hadron Decays / ALEPH Collaboration
Based on a sample of four million events collected by ALEPH from 1991 to 1995, a measurement of the forward-backward asymmetry in Z -> b-barb decays using inclusive final states is presented. High-performance tagging of b-barb events in a wide angular range is achieved using neural network techniques. [...]
hep-ex/0107033; CERN-EP-2001-047; CERN-EP-2001-047.- Geneva : CERN, 2001 - 25 p. ALEPH Papers - Published in : Eur. Phys. J. C 22 (2001) 201-215 Fulltext: ep-2001-047 - PDF; arXiv:hep-ex_0107033 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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7.
(58)
Study of Charm Production in Z Decays / ALEPH Collaboration
The production rates of D*+-, Ds*+-, D+-, D0 / D0bar, Ds+, and Lambda_c in Z to ccbar decays are measured using the LEP I data sample recorded by the ALEPH detector. The fractional energy spectrum of the D*+- is well described as the sum of three contributions: charm hadronisation, b hadron decays and gluon splitting into a pair of heavy quarks. [...]
hep-ex/9909032; CERN-EP-99-094; CERN-ALEPH-99-079; CERN-EP-99-094.- Geneva : CERN, 2001 - 25 p. ALEPH Papers - Published in : Eur. Phys. J. C 16 (2000) 597-611 Fulltext: ep-99-094 - PDF; arXiv:hep-ex_9909032 - PDF; External links: Fulltext; Rivet analyses reference
In : 30th International Conference on High-energy Physics, Osaka, Japan, 27 Jul - 2 Aug 2000, pp.e-page 138 - Please contact the library if you need to access this document.
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8.
(55)
A measurement of the gluon splitting rate into $c\overline{c}$ pairs in hadronic Z decays / ALEPH Collaboration
The rate of gluons splitting into $c \bar{c}$ pairs in hadronic $Z$ decays is measured using the data sample collected by ALEPH from 1991 to 1995. The selection is based on the identification of leptons (electrons and muons) originating from semileptonic charm decays, and on the topological properties of signal events [...]
hep-ex/0302003; CERN-EP-2003-003; CERN-EP-2003-003.- Geneva : CERN, 2003 - 12 p. ALEPH Papers - Published in : Phys. Lett. B 561 (2003) 213 Fulltext: S0370269303004957 - XML; arXiv:hep-ex_0302003 - PDF; 0302003 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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9.
(55)
Determination of the LEP centre-of-mass energy from Z$\gamma$ events / ALEPH Collaboration
Radiative returns to the Z resonance (Zgamma events) are used to determine the LEP2 centre-of-mass energy from the data collected with the ALEPH detector in 1997. The average centre-of-mass energy is measured to be: E_CM = 182.50 +- 0.19(stat) +- 0.08(syst) GeV in good agreement with the precise determination by the LEP energy working group of 182.652 +- 0.050 GeV. [...]
hep-ex/9907043; CERN-EP-99-092; CERN-ALEPH-99-071; CERN-EP-99-092.- Geneva : CERN, 1999 - 13 p. ALEPH Papers - Published in : Phys. Lett. B 464 (1999) 339-49 Fulltext: arXiv:hep-ex_9907043 - PDF; ep-99-092 - PDF; - Please contact the library if you need to access this document.
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10.
(53)
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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