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478 results on '"P. Scharff-Hansen"'

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51. A study of mean sub-jet multiplicities in two- and three-jet hadronicZ 0 decays

52. Measurement of $$\Gamma (Z^0 \to b\bar b)/\Gamma (Z^0 \to hadrons)$$ using impact parameters and leptons

53. Measurement of the photon structure functionF 2 γ in the reactione + e −→e + e −+hadrons at LEP

54. Measurement of the production rates of charged hadrons ine + e −-annihilation at theZ 0

55. Studies of charged particle multiplicity inb quark events

56. QCD studies using a cone-based jet finding algorithm fore + e − collisons at LEP

57. Improved measurements of the neutral current from hadron and lepton production at LEP

58. Search for neutral Higgs bosons in the minimal supersymmetric extension of the standard model

59. A study of muon pair production and evidence for tau pair production in photon-photon collisions at LEP

60. A measurement ofΓ (Z 0→b $$\Gamma ({\rm Z}^0 \to b\bar b)$$ /Γ(Z 0→hadrons) using an impact parameter technique

61. Measurement of $$\Gamma ({\rm Z}^0 \to b\bar b)/\Gamma ({\rm Z}^0 \to hadrons)$$ using leptons

62. A measurement of the forward-backward asymmetry of $$e^ + e^ - \to b\bar b$$ at centre of mass energies on and near theZ 0 peak usingD *± mesons

63. Studies of strong and electroweak interactions using final state photon emission in hadronicZ 0 decays

64. A study of differences between quark and gluon jets using vertex tagging of quark jets

65. A test of the flavour independence of the strong interaction for five flavours

66. Measurement of the averageb hadron lifetime inZ 0 decays

67. Measurements of $${{\Gamma (Z^0 \to b\bar b)} \mathord{\left/ {\vphantom {{\Gamma (Z^0 \to b\bar b)} {\Gamma (Z^0 \to hadrons)}}} \right. \kern-\nulldelimiterspace} {\Gamma (Z^0 \to hadrons)}}$$ and semileptonic branching ratios forb-flavoured hadrons in hadronicZ 0 decays

68. Precision measurements of the neutral current from hadron and lepton production at LEP

69. Measurement of the τ lifetime

70. QCD coherence studies using two particle azimuthal correlations

71. The forward-backward asymmetry of $$e^ + e^ - \to b\bar b and e^ + e^ - \to c\bar c$$ using leptons in hadronicZ 0 decays

72. A determination ofα s( $$M_{Z^0 } $$ ) at LEP using resummed QCD calculations

73. A study of charged particle multiplicities in hadronic decays of theZ 0

74. Inclusive neutral vector meson production in hadronicZ 0 decays

75. Properties of multihadronic events with a final state photon at $$\sqrt s = M_{Z^0 } $$

76. A measurement of electron production in hadronicZ 0 decays and a determination of $$\Gamma (Z^0 \to b\bar b)$$

77. A global determination of $$\alpha _s (M_{Z^0 } )$$ at LEP

78. Search for charged Higgs bosons in e+e− collisions at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\sqrt{s}=189\mbox{--}209\ \mbox{GeV}$\end{document}

79. Measurement of three-jet distributions sensitive to the gluon spin ine + e − annihilations at $$\sqrt s = 91$$ GeV

80. A study of the recombination scheme dependence of jet production rates and of α s ( $$M_{Z^0 } $$ ) in hadronicZ 0 decays

81. A direct measurement of theZ 0 invisible width by single photon counting

82. Measurement of theZ 0 line shape parameters and the electroweak couplings of charged leptons

83. A study of angular correlations in 4-jet final states of hadronicZ 0 decays

84. Searches for neutral Higgs bosons ine + e − collisions at LEP

85. A measurement of global event shape distributions in the hadronic decays of theZ 0

86. QCD coherence and correlations of particles with restricted momenta in hadronic Z decays

87. Search for radions at LEP2

88. Angular analysis of the muon pair asymmetry at LEP 1

89. Search for invisibly decaying Higgs bosons in e+e−→Z0h0 production at s=183–209 GeV

90. Search for Dirac magnetic monopoles in e+e− collisions with the OPAL detector at LEP2

91. Inclusive jet production in photon–photon collisions at see from 189 to 209 GeV

92. Measurements of Rb in e+e− collisions at s between 182 and 209 GeV

93. Multi-photon events with large missing energy in e+e− collisions at s=192–209 GeV

94. Flavour independent search for Higgs bosons decaying into hadronic final states in e+e− collisions at LEP

95. Study of Bose-Einstein correlations in ${\rm e}^ + {\rm e}^-\to {\rm W}^ + {\rm W}^-$ events at LEP

96. Determination of α S using OPAL hadronic event shapes at $\sqrt{s} = 91\mbox{--}209~\mathrm{GeV}$ and resummed NNLO calculations

97. Search for stable and long-lived massive charged particles in e+e− collisions at =130209 GeV

98. Search for nearly mass-degenerate charginos and neutralinos at LEP

99. Search for invisibly decaying Higgs bosons in e+ e- ---> Z0 h0 production at s**(1/2) = 183-GeV - 209-GeV

100. Search for leptoquarks in electron–photon scattering at up to 209 GeV at LEP

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