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Sökning: WFRF:(Kjaer M.) > Tidskriftsartikel > Kluit P. > (2009) > Refereegranskat > Jackson J. N.

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1.
  • Abdallah, J., et al. (författare)
  • Inclusive single-particle production in two-photon collisions at LEP II with the DELPHI detector
  • 2009
  • Ingår i: Physics Letters B. - 0370-2693. ; 678:5, s. 444-449
  • Tidskriftsartikel (refereegranskat)abstract
    • A study of the inclusive charged hadron production in two-photon collisions is described. The data were collected with the DELPHI detector at LEP II. Results on the inclusive single-particle p(T) distribution and the differential charged hadrons d sigma/dp(T) cross-section are presented and compared to the predictions of perturbative NLO QCD calculations and to published results. (C) 2009 Elsevier B.V. All rights reserved.
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2.
  • Abdallah, J., et al. (författare)
  • A study of b(b)over-bar production in e(+)e(-) collisions at root s=130-207 GeV
  • 2009
  • Ingår i: European Physical Journal C. - 1434-6044. ; 60:1, s. 1-15
  • Tidskriftsartikel (refereegranskat)abstract
    • Measurements are presented of R-b, the ratio of the b (b) over bar cross-section to the q (q) over bar cross-section in e(+)e(-) collisions, and the forward-backward asymmetry A(FB)(b) at twelve energy points in the range root s = 130-207 GeV. These results are found to be consistent with the Standard Model expectations. The measurements are used to set limits on new physics scenarios involving contact interactions.
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3.
  • Abdallah, J., et al. (författare)
  • Search for one large extra dimension with the DELPHI detector at LEP
  • 2009
  • Ingår i: European Physical Journal C. - 1434-6044. ; 60:1, s. 17-23
  • Tidskriftsartikel (refereegranskat)abstract
    • Single photons detected by the DELPHI experiment at LEP2 in the years 1997-2000 are reanalysed to investigate the existence of a single extra dimension in a modified ADD scenario with slightly warped large extra dimensions. The data collected at centre-of-mass energies between 180 and 209 GeV for an integrated luminosity of similar to 650 pb(-1) agree with the predictions of the Standard Model and allow a limit to be set on graviton emission in one large extra dimension. The limit obtained on the fundamental mass scale M-D is 1.69 TeV/c(2) at 95% CL, with an expected limit of 1.71 TeV/c(2).
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