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Polarization at LEP

  • A. Blondel

Abstract

Evidence for beam polarization has been recently observed in the Large Electron Positron Collider (LEP) at CERN. The future of polarized beam experiments in LEP is reviewed. The main physics motivations, and foreseeable difficulties, are summarized.

Keywords

Transverse Polarization Longitudinal Polarization Depolarize Effect Fermion Coupling Large Electron Positron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. [1]
    LEP Design Report, CERN-LEP/84–01 (1984).Google Scholar
  2. ALEPH Collaboration, D. Decamp et al., Phys. Lett. B231 (1989) p. 519Google Scholar
  3. ALEPH Collaboration, D. Decamp et al., ibid, Phys. Lett. B235 (1989) p. 399;Google Scholar
  4. ALEPH Collaboration, D. Decamp et al., ibid, Z. Phys. C48 (1989) p. 365. see also ref. [10] for a review.Google Scholar
  5. [3]
    DELPHI Collaboration, P. Aarnio et al., Phys. Lett. B231 (1989) p. 539 see also ref. [10] for a review.Google Scholar
  6. DELPHI Collaboration, P. Aarnio et al., ibid, Phys. Lett. B241 (1990) p. 435 see also ref. [10] for a review.Google Scholar
  7. OPAL Collaboration, M. Z. Akrawy et al., Phys. Lett. B231 (1989) p. 530Google Scholar
  8. OPAL Collaboration, M. Z. Akrawy et al., ibid, Phys. Lett. B240 (1990) p. 497; see also ref. [10] for a review.Google Scholar
  9. Li Collaboration, B. Adeva et al., Phys. Lett. B231 (1989) p. 509Google Scholar
  10. Li Collaboration, B. Adeva et al., ibid, Phys. Lett. B249 (1990) p. 341 see also ref. [10] for a review.Google Scholar
  11. [6]
    D. Treille in ‘Cargese 1990, Z Physics’, R. Gastmans ed. (1990).Google Scholar
  12. [7]
    W. J. Marciano and A. Sirlin, Phys. Rev. Lett. 46 (1981) p. 163ADSCrossRefGoogle Scholar
  13. W. J. Marciano and A. Sirlin, A. Sirlin, Phys. Lett B232 (1989) p. 123.ADSGoogle Scholar
  14. [8]
    D.C. Kennedy and B.W. Lynn, SLAC-Pub 4039 (1986, rev. 1988), Nucl. Phys. B322 (1989).Google Scholar
  15. [9]
    M. Consoli and W. Hollik, in ‘Physics at LEP1’, G. Altarelli, R. Kleiss and C. Verzegnassi (ed.), CERN 89–08 (1989) p. 7.Google Scholar
  16. [10]
    E. Fernandez, in ‘neutrino 90’, Nucl. Phys. B (proc. suppl.) 666 (1990) p. 1.Google Scholar
  17. [11]
    A. A. Sokolov and I. M. Ternov, Soy. Phys. Doklady, 8 (1964) p. 1203.ADSGoogle Scholar
  18. [12]
    R. F. Schwitters et al., Phys. Rev. Lett. 35 (1975) p. 1320.ADSCrossRefGoogle Scholar
  19. G. Hanson et al., Phys. Rev. Lett. 35 (1975) p. 1611.ADSCrossRefGoogle Scholar
  20. [13]
    A. A. Zholentz et al., Phys. Lett. 96B (1980) p. 214.Google Scholar
  21. [14]
    A. S. Artamonov et al., Phys. Lett. 118B (1982) p. 225.Google Scholar
  22. [15]
    D. P. Barber et al., Phys. Lett. 135B (1984) p. 498.Google Scholar
  23. [16]
    W. W. MacKay et al. Phys. Rev. D29 (1984) p. 2483.ADSCrossRefGoogle Scholar
  24. [17]
    A. Hofmann et al., 2nd European Particle Acc. Conf., Nice 1990.Google Scholar
  25. [18]
    P. Darriulat, in ‘proceedings of the LEP summer study’, CERN 79–01 (1979), p. 219.Google Scholar
  26. [19]
    Polarization at LEP’, G. Alexander et al. (editors), CERN 88–06 (1988), vol. I, I I.Google Scholar
  27. [20]
    C. Bovet, B.W. Montague, M. Placidi and R. Rossmanith, in ‘Physics at LEP’, CERN 86–02 (1986), p. 58.Google Scholar
  28. [21]
    C.Y. Prescott, proc. 1980 Int. Symp. on High-Energy Physics with Polarized Beams and Polarized Targets, Lausanne, 1980, eds. C. Joseph and J. Soffer ( Birkhâuser Verlag, Basel, 1981 ), p. 34.Google Scholar
  29. M. Böhm and W. Hollik, Nucl. Phys. B204 (1982), p. 45.ADSCrossRefGoogle Scholar
  30. [22]
    B.W. Lynn and R.G. Stuart, Nucl. Phys. B253 (1985), p. 84. B.W. Lynn, in [19], vol. I, p. 24.Google Scholar
  31. [23]
    B.W. Lynn, M.E. Peskin and R.G. Stuart, SLAC-PUB 3725 (1985) and in ‘Physics at LEP’ CERN 86–02, Geneva, (1986), p. 90.Google Scholar
  32. [24]
    B.W. Lynn and C. Verzegnassi, Phys. Rev. D35 (1987), p. 3326.ADSGoogle Scholar
  33. [25]
    D. Blockus et al., ‘Proposal for polarization at SLC’, SLAC-Prop-1, Stanford, April 1986.Google Scholar
  34. [26]
    G. Alexander et al., Working Group Report CERN/LEPC/87–6 LEPC/M81 (1987).Google Scholar
  35. [27]
    J. Badier et al., ALEPH Note 87–17 (1987).Google Scholar
  36. [28]
    A. Blondel, B.W. Lynn, F.M. Renard and C. Verzegnassi, Nucl. Phys. B304 (1988), p. 438.ADSCrossRefGoogle Scholar
  37. [29]
    B.A. Kniehl, J.H. Kühn and R.G. Stuart, in [19], vol. I, p. 158.Google Scholar
  38. [30]
    A. Blondel, CERN-EP/89–84 (1989)Google Scholar
  39. A. Sirlin, Phys. Lett. B232 (1989) p. 123.Google Scholar
  40. [31]
    D. Treille, in [19], vol.’, p. 265.Google Scholar
  41. [32]
    J. Drees, K. Mónig, H. Staeck and S. Uberschär, in [19], vol.I, p. 317; P.J. Dornan, in [19], vol. I, p. 344.Google Scholar
  42. [33]
    D.C. Kennedy, J.M. Im, B.W. Lynn and R.G. Stuart, Nucl. Phys. 321 (1989) p. 83.ADSCrossRefGoogle Scholar
  43. Computer programm EXPOSTAR 1.0, courtesy of D.C. Kennedy.Google Scholar
  44. [34]
    H. Burkhardt, F. Jegerlehner, G. Penso and C. Verzegnassi, Z Phys. C43 (1989) p. 497. and in [19], Vol. I, p. 145.Google Scholar
  45. [35]
    Reviewed by W. Hollik in [19], vol.I, p. 83.Google Scholar
  46. [36]
    F. Boudjema and F.M. Renard, in [19], vol. I, p. 223.Google Scholar
  47. [37]
    M. Cvetic and B.W. Lynn, Phys. Rev. D35 (1987), p. 51.ADSCrossRefGoogle Scholar
  48. [38]
    C. Verzegnassi, in [19], vol.I, p. 204; A. Djouadi, in [19], vol. I, p. 215.Google Scholar
  49. [39]
    M. Placidi and R. Rossmanith, LEP Note 545 (1985)Google Scholar
  50. [40]
    J. Buon and J.M. Jowett, LEP Note 584 (1987)Google Scholar
  51. [41]
    A. Blondel, Phys. Lett. 202B (1988), p. 145.Google Scholar
  52. [42]
    G. Alexander et al., in [19], vol.Il, p. 3.Google Scholar
  53. [43]
    J. Badier, A.Blondel (L.P.N.H.E., Palaiseau), M. Crozon (college de France, Paris), B. Dehning (Max Plank Institute Munich), L. Knudsen, J.-P. Koutchouk, M. Placidi, R Schmidt (CERN-LEP); M. Placidi, proc. 9 Int. Conf. on High Energy Spin Physics, Bonn, Germany, (1990).Google Scholar
  54. [44]
    M. Placidi and R. Rossmanith, CERN LEP-BI/86–25 (1986, rev. 1988 )Google Scholar
  55. M. Placidi, R. Rosmanith, NIM A274 (1989) 79–94.ADSCrossRefGoogle Scholar
  56. [45]
    G. Coignet and following articles, in [19], vol.II, p. 83.Google Scholar
  57. [46]
    G. Von Holtey, in [19], vol.Il, p. 89.Google Scholar
  58. [47]
    G. Altarelli, public comment at the Polarization Workshop.Google Scholar
  59. [48]
    J. Buon, public comment at the Polarization Workshop.Google Scholar
  60. [49]
    J. -P. Koutchouk, proc. 9 Int. Conf. on High Energy Spin Physics, Bonn, Germany, (1990).Google Scholar
  61. [50]
    A. Blondel and J.M. Jowett, in [19], vol.Il, p. 216.Google Scholar
  62. [51]
    A. Chao, Nucl. Instr. Meth. 180 (1981), p. 29.Google Scholar
  63. [52]
    A. Ackermann, J. Kewisch, T. Limberg, to be published.Google Scholar
  64. [53]
    J. Kewisch, DESY 83–032 (1983).Google Scholar
  65. [54]
    J.-P. Koutchouk and T. Limberg, in [19], vol.Il, p. 204.Google Scholar
  66. [55]
    J. Buon, in [19], vol.I1, p. 243. S.R. Mane, in [19], vol.Il, p. 233.Google Scholar
  67. [56]
    R. Schwitters and B. Richter, PEP Note 87 (1974).Google Scholar
  68. [57]
    A. Blondel and E. Keil, in [19], vol.Il, p. 250.Google Scholar
  69. [58]
    D. Treille and G. Von Holtey, in [19], vol. II, p. 258.Google Scholar
  70. [59]
    E. Söderström, CERN/LEP-TH/89–58, (1989);Google Scholar
  71. H. Grote, E. Keil and E. Söderström, European Particle Accelerator Conference, Nice, (1990), CERN-SL/90–22 (1990).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • A. Blondel
    • 1
  1. 1.Ecole PolytechniqueL.P.N.H.E.Palaiseau CedexFrance

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