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73 results on '"Leins, A"'

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1. Precision electroweak measurements on the Z resonance

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

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

4. Search for associated production of massive states decaying into two photons in e+e− annihilations at =88–209 GeV

5. Measurement of the hadronic photon structure function F2γ at LEP2

6. Measurement of the hadronic cross-section for the scattering of two virtual photons at LEP

7. Investigation of the decay of orbitally-excited B mesons and first measurement of the branching ratio ${\rm BR}({\rm B}^*_J \rightarrow{\rm B}^* \pi (X))$

8. Search for doubly charged Higgs bosons with the OPAL detector at LEP

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

10. Measurement of the mass and width of the W boson in e+e− collisions at 189 GeV

11. Multiplicities of $\pi^0, \eta,\rm K^0$ and of charged particles in quark and gluon jets

12. Search for the standard model Higgs boson at LEP

13. A study of W+W- gamma events at LEP

14. Search for anomalous production of di-lepton events with missing transverse momentum in <tex>e(^{+})e(^{-})$</tex> collisions at root √s=183-209 GeV

15. A study of charm production in beauty decays with the OPAL detector at LEP

16. Experimental studies of unbiased gluon jets from $e^{+}e^{-}$ annihilations using the jet boost algorithm

17. Study of Z Pair Production and Anomalous Couplings in $e^+ e^-$ Collisions at $\sqrt{s}$ between 190 GeV and 209 GeV

18. Tests of models of color reconnection and a search for glueballs using gluon jets with a rapidity gap

19. Search for pair-produced leptoquarks in $e^{+}e^{-}$ interactions at $\sqrt{s}\simeq$ 189 -209 GeV

20. Test of non-commutative QED in the process $e^{+}e^{-} \to \gamma \gamma$ at LEP

21. Measurement of heavy quark forward-backward asymmetries and average B mixing using leptons in hadronic Z decays

22. Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP

23. Measurement of charged current triple gauge boson couplings using W pairs at LEP

24. Measurement of isolated prompt photon production in photon-photon collisions at root s(ee)=183-209 GeV

25. Inclusive analysis of the b quark fragmentationfunction in Z decays at LEP

26. A Measurement of Semileptonic B Decays to Narrow Orbitally-Excited Charm Mesons

27. Di-Jet Production in Photon-Photon colisions at $\sqrt{s_{ee}}$ from 189 to 209 GeV

28. Search for a low mass CP-odd Higgs boson in e+e- collisions with the OPAL detector at LEP2

29. Measurement of the Cross-Section for the Process GammaGamma -> Ppbar at sqrt(s)_ee=183-189 GeV at LEP

30. Measurement of the Mass of the W Boson in $e^+ e^-$ collisions using the Fully Leptonic Channel

31. Measurement of the charm structure function <tex>F_{2,c}$</tex> of the photon at LEP

32. Search for Charged Excited Leptons in e+e- Collisions at sqrt(s) = 183-209 GeV

33. Measurement of Z/gamma* production in compton scattering of quasi-real photons

34. Search for Scalar Top and Scalar Bottom Quarks at LEP

35. Search for Yukawa production of a light neutral Higgs Boson at LEP

36. Search for the production of single top quarks using the OPAL detector

37. Search for the Standard Model Higgs Boson with the OPAL Detector at LEP

38. Measurement of the b quark forward-backward asymmetry around the Z0 peak using an inclusive tag

39. Measurement of neutral-current four-fermion production at LEP2

40. Charged Particle Momentum Spectra in e+e- annihilation at sqrt(s) = 192-209 GeV

41. Search for Leptoquarks in Electron-Photon Scattering at $\sqrt{s_{ee}}$ up to 209 GeV at LEP

42. Genuine Correlations of Like-Sign Particles in Hadronic Z0 Decays

43. Search for Lepton Flavour Violation in e+e- Collisions at sqrt(s) = 189 - 209 GeV

44. Measurement of the Branching Ratio for the Process $b \to \tau^{-}\overline{\nu}_{\tau}X$

45. Measurement of |$V_{ub}$| using b hadron semileptonic decays

46. Search for Single Leptoquark and Squark Production in Electron-Photon Scattering at sqrt(s_ee) = 189 GeV at LEP

47. Measurement of the Branching Ratio for $D_{s} \to \tau\nu_{\tau}$ Decays

48. A Search for a Narrow Radial Excitation of the $D^{*\pm}$ Meson

49. Search for the Standard Model Higgs Boson in e+e- Collisions at sqrt(s) = 192-209 GeV

50. Particle multiplicity of unbiased gluon jets from e+e- three-jet events

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