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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 1.39 秒. 
1.
(100)
Measurement of the Charm Production Cross Section in gamma gamma Collisions at LEP / L3 Collaboration
Open charm production in gamma-gamma collisions is studied with data collected at e+e- centre-of-mass energies from 189 GeV to 202 GeV corresponding to a total integrated luminosity of 410 pb-1. The charm cross section sigma(gamma gamma ---> c c~ X) is measured for the first time as a function of the two-photon centre-of-mass energy in the interval from 5 GeV to 70 GeV and is compared to NLO QCD calculations..
hep-ex/0101025; CERN-EP-2000-155; CERN-EP-2000-155; CERN-L3-231.- Geneva : CERN, 2001 - 15 p. - Published in : Phys. Lett. B 514 (2001) 19-28 Fulltext: arXiv:hep-ex_0101025 - PDF; 0101025 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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2.
(91)
Measurements of the Cross Sections for Open Charm and Beauty Production in $\gamma\gamma$ Collisions at $\sqrt{s}$ = 189-202 GeV / L3 Collaboration
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP with 410 pb^-1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. [...]
hep-ex/0011070; CERN-EP-2000-144; CERN-EP-2000-144; CERN-L3-226.- Geneva : CERN, 2001 - 17 p. - Published in : Phys. Lett. B 503 (2001) 10-20 Fulltext: 0011070 - PDF; arXiv:hep-ex_0011070 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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3.
(85)
Determination of the $e^+ e^- \to \gamma \gamma (\gamma)$ cross-section at LEP 2 / DELPHI Collaboration
A test of the benchmark QED process e+e- -> gamma gamma (gamma) is reported, using the data collected with the DELPHI detector at LEP 2. The data analysed were recorded at centre-of-mass energies ranging from 161 GeV to 208 GeV and correspond to a total integrated luminosity of 656.4 pb^{-1}. [...]
hep-ex/0409058; CERN-PH-EP-2004-017; CERN-PH-EP-2004-017.- Geneva : CERN, 2004 - 24 p. - Published in : Eur. Phys. J. C 37 (2004) 405-419 Fulltext: arXiv:hep-ex_0409058 - PDF; 0409058 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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4.
(84)
Measurement of the $e^+ e^- \to W^+ W^-\gamma$ Cross-section and Limits on Anomalous Quartic Gauge Couplings with DELPHI / DELPHI Collaboration
W+W-gamma production at LEP2 is studied using data collected with the DELPHI detector at centre-of-mass energies between 189 GeV and 209 GeV, corresponding to an integrated luminosity of about 600 pb^-1. Cross-sections are measured for the production of W+W- with a hard, central and isolated photon in the final state, and are found to be compatible with the Standard Model prediction. [...]
hep-ex/0311004; CERN-EP-2003-045; CERN-EP-2003-045.- Geneva : CERN, 2003 - 14 p. - Published in : Eur. Phys. J. C 31 (2003) 139-147 Fulltext: 0311004 - PDF; arXiv:hep-ex_0311004 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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5.
(84)
Photon Events with Missing Energy in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 130 to 209 GeV / DELPHI Collaboration
The production of single- and multi-photon events has been studied in the reaction e+e- -> gamma (gamma) + invisible particles. The data collected with the DELPHI detector during the years 1999 and 2000 at centre-of-mass energies between 191 GeV and 209 GeV was combined with earlier data to search for phenomena beyond the Standard Model. [...]
hep-ex/0406019; CERN-EP-2003-093; CERN-EP-2003-093.- Geneva : CERN, 2005 - 33 p. - Published in : Eur. Phys. J. C 38 (2005) 395-411 Fulltext: arXiv:hep-ex_0406019 - PDF; 0406019 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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6.
(82)
$Z\gamma*$ production in $e^+ e^-$ interactions at $\sqrt{s}$ = 183 - 209 GeV / DELPHI Collaboration
Measurements of Zgamma* production are presented using data collected by the DELPHI detector at centre-of-mass energies ranging from 183 to 209 GeV, corresponding to an integrated luminosity of about 667 pb^{-1}. The measurements cover a wide range of the possible final state four-fermion configurations: hadronic and leptonic (e+ e- q qbar, mu+ mu- q qbar, q qbar nu nubar), fully leptonic (l+ l- l'+ l'-) and fully hadronic final states (q qbar q qbar, with a low mass q qbar pair). [...]
arXiv:0706.2565; CERN-PH-EP-2006-022; CERN-PH-EP-2006-022.- 2007 - 38 p. - Published in : Eur. Phys. J. C 51 (2007) 503-523 Fulltext: PDF; External link: Preprint
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7.
(81)
Z-boson production with two unobserved, back-to-back, hard photons at LEP / L3 Collaboration
The double-radiative process e+e- -> Z gamma gamma -> q q~ gamma gamma, where the two hard photons escape detection at low polar angles into opposite directions, is studied in 0.62/fb of data collected with the L3 detector at LEP at centre-of-mass energies between 188.6GeV and 209.2GeV. The cross sections are measured and found to be consistent with the Standard Model expectations..
hep-ex/0504015; CERN-PH-EP-2005-006; CERN-L3-296; CERN-PH-EP-2005-006.- Geneva : CERN, 2005 - 15 p. - Published in : Phys. Lett. B 613 (2005) 118-127 Fulltext: 0504015 - PDF; arXiv:hep-ex_0504015 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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8.
(81)
Midrapidity antiproton-to-proton ratio in pp collisions at $\sqrt{s} = 0.9$ and $7$~TeV measured by the ALICE experiment / ALICE collaboration
The ratio of the yields of antiprotons to protons in pp collisions has been measured by the ALICE experiment at $\sqrt{s} = 0.9$ and $7$~TeV during the initial running periods of the Large Hadron Collider(LHC). The measurement covers the transverse momentum interval $0.45 < p_{\rm{t}} < 1.05$~GeV/$c$ and rapidity $|y| < 0.5$. [...]
arXiv:1006.5432.- 2010 - 12 p. - Published in : Phys. Rev. Lett. 105 (2010) 072002 APS Open Access article: PDF; Fulltext: PDF; External link: DURHAM
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9.
(80)
Total Cross Section in $\gamma\gamma$ Collisions at LEP / L3 Collaboration
The reaction e+e- -> e+e- gamma* gamma* -> e+e- hadrons for quasi-real photons is studied using data from root(s) = 183 GeV up to 202 GeV. Results on the total cross sections sigma(e+e- -> e+e- hadrons) and sigma(+e- gamma* gamma* -> e+e- hadrons) are given for the two-photon centre-of-mass energies 5 GeV < Wgammagamma < 185 GeV. [...]
hep-ex/0102025; CERN-EP-2001-012; CERN-EP-2001-012; CERN-L3-235.- Geneva : CERN, 2001 - 17 p. - Published in : AIP Conf. Proc. 571 (2001) 154-159 Fulltext: arXiv:hep-ex_0102025 - PDF; 0102025 - PDF; S0370269301010723 - XML; External link: Preprint
In : Conference on Photon, Ambleside, UK, 26 - 31 Aug 2000, pp.154-159 - Please contact the library if you need to access this document.
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10.
(80)
Search for resonant $\widetilde\nu$ production at $\sqrt{s}$ = 183 to 208 GeV / DELPHI Collaboration
Searches for resonant sneutrino production in e+e- collisions under the assumption that R-parity is not conserved and that the dominant R-parity violating coupling is lambda_{121} or lambda_{131} used data recorded by DELPHI in 1997 to 2000 at centre-of-mass energies of 183 to 208 GeV. No deviation from the Standard Model was observed. [...]
hep-ex/0303033; CERN-EP-2002-090; CERN-EP-2002-090.- Geneva : CERN, 2003 - 19 p. - Published in : Eur. Phys. J. C 28 (2003) 15-26 Fulltext: ep-2002-090 - PDF; arXiv:hep-ex_0303033 - PDF; 0303033 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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