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684 results on '"Ulbricht, A"'

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1. The time-dependent Aharonov–Casher effect

2. Study of the e+e−→Zγe+e−→Zγ process at LEP and limits on triple neutral-gauge-boson couplings

3. Measurement of the atmospheric muon spectrum from 20 to 3000 GeV

4. Search for branons at LEP

5. Search for charginos with a small mass difference to the lightest supersymmetric particle at [formula omitted] = 189 GeV

6. Inclusive Σ+ and Σ0 production in hadronic Z decays

7. Measurement of the lifetime of the tau lepton

8. Measurement of hadron and lepton-pair production at [formula omitted] GeV at LEP

9. Measurement of the e +e −→Z γγ cross section and determination of quartic gauge boson couplings at LEP

10. Measurement of the probability of gluon splitting into charmed quarks in hadronic Z decays

11. Measurement of the running of the fine-structure constant

12. Hard-photon production and tests of QED at LEP

13. Direct observation of longitudinally polarised W ± bosons

14. Protons in near earth orbit

15. Search for excited leptons at [formula omitted] GeV

16. Search for charginos and neutralinos in e +e − collisions at [formula omitted] = 189 GeV

18. Measurement of the Z-boson mass using e+e -> Z gamma events at centre-of-mass energies above the Z pole

19. Search for color singlet and color reconnection effects in hadronic Z decays at LEP

20. Search for R-parity violating chargino and neutralino decays in e+e− collisions up to [formula omitted] GeV

21. Proton anti-proton pair production in two photon collisions at LEP

22. Searches for scalar quarks in e +e − interactions at [formula omitted] GeV

23. Search for neutral Higgs bosons of the Minimal Supersymmetric Standard Model in e +e −interactions at [formula omitted]= 189 [formula omitted]

24. Search for scalar leptons in e +e − collisions at [formula omitted]

25. Search for extra dimensions in boson and fermion pair production in e +e − interactions at LEP

26. Single and multi-photon events with missing energy in e +e −collisions at [formula omitted]= 189 GeV

27. Measurement of triple-gauge-boson couplings of the W boson at LEP

28. Measurement of inclusive [formula omitted] production in two-photon collisions at LEP

29. Study of Z boson pair production in e +e − collisions at LEP at [formula omitted] GeV

30. Measurement of the spectroscopy of orbitally excited B mesons at LEP

31. Search for charged Higgs bosons in e +e − collisions at [formula omitted] GeV

32. Measurement of the cross-section for the process [formula omitted] at LEP

33. Search for low scale gravity effects in e +e − collisions at LEP

34. Search for heavy isosinglet neutrinos in e +e − annihilation at [formula omitted] GeV

35. Formation of the ηc in two-photon collisions at LEP

36. Search for the standard model Higgs boson in e +e − interactions at [formula omitted] GeV

37. Search for heavy neutral and charged leptons in e +e − annihilation at [formula omitted] = 183 and 189 GeV

38. Search for antihelium in cosmic rays

39. Measurement of an elongation of the pion source in Z decays

40. Study of neutral-current four-fermion and ZZ production in e +e − collisions at [formula omitted] 183 GeV

41. Measurement of mass and width of the W boson at LEP

42. Inclusive charm production in two-photon collisions at LEP

43. χc2 formation in two-photon collisions at LEP

44. Heavy quarkonium production in Z decays

45. Measurement of the [formula omitted] forward-backward asymmetry and the [formula omitted] mixing parameter using prompt leptons

46. The Q2 evolution of the hadronic photon structure function Fγ2 at LEP

47. Search for charged Higgs bosons in e +e − collisions at centre-of-mass energies between 130 and 183 GeV

48. Searches for scalar top and scalar bottom quarks in e +e − interactions at 161 GeV [formula omitted] 183 GeV

49. Measurement of the topological branching fractions of the $\tau$ lepton at LEP

50. Hard-photon production and tests of QED at LEP

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