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Experimental study of jet masses ine + e − annihilation at c.m. energies between 12 and 43.5 GeV

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Zeitschrift für Physik C Particles and Fields

Abstract

Data on jet masses, resulting from the decomposition ofe + e − hadronic final states into two hemispheres, are presented at centre of mass energies between 12 and 43.5 GeV. Comparisons are made with bareO(α 2 s ) QCD predictions as well as with QCD based fragmentation models. Values for α s and\(\Lambda _{\overline {MS} } \) are determined, both with and without hadronization effects included. Upper and lower limits for\(\Lambda _{\overline {MS} } \) independent of fragmentation models have been determined to be 0.480±0.025 GeV and 0.047±0.007 GeV respectively.

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Author notes

  1. F. J. Kirschfink

    Present address: Lufthansa, Hamburg, Germany

  2. F. Barreiro (Alexander von Humboldt Fellow)

    Present address: Universidad Autónoma de Madrid, Madrid, Spain

  3. E. Bernardi

    Present address: Robert Bosch GmbH, Schwieberdingen, Germany

  4. J. Chwastowski

    Present address: Inst. of Nuclear Physics, Cracow, Poland

  5. K. Genser, J. M. Pawlak & R. Walczak

    Present address: Warsaw University, Poland

  6. H. Kowalski

    Present address: Columbia University, NY, USA

  7. D. Lüke

    Present address: CERN, Geneva, Switzerland

  8. T. Kracht

    Present address: Hasylab, DESY, Hamburg, Germany

  9. W. Zeuner & M. Takashima

    Present address: CERN, Geneva, Switzerland

  10. D. Su

    Present address: Rutherford Appleton Laboratory, Chilton, UK

  11. P. N. Burrows

    Present address: MIT, Cambridge, USA

  12. L. Labarga & D. Muller

    Present address: SLAC, Standford, CA, USA

  13. S. Ritz & A. Caldwell

    Present address: Columbia University, NY, USA

Authors and Affiliations

  1. I. Physikalisches Institut der RWTH Aachen, D-5100, Aachen, Federal Republic of Germany

    W. Braunschweig, R. Gerhards, F. J. Kirschfink & H. -U. Martyn

  2. Physikalisches Institut der Universität Bonn, D-5300, Bonn, Federal Republic of Germany

    H. M. Fischer, H. Hartmann, J. Hartmann, E. Hilger, A. Jocksch & R. Wedemeyer

  3. H.H. Wills Physics Laboratory, University of Bristol, BS 8 1 TL, Bristol, UK

    B. Foster & A. J. Martin

  4. Deutsches Elektronen-Synchrotron DESY, D-2000, Hamburg, Federal Republic of Germany

    F. Barreiro (Alexander von Humboldt Fellow), E. Bernardi, J. Chwastowski, K. Genser, H. Kowalski, B. Löhr, D. Lüke, D. Notz, J. M. Pawlak, K. -U. Pösnecker, E. Ros, R. Walczak & G. Wolf

  5. Institut für Physik, Universität Dortmund, D-4600, Dortmund, Federal Republic of Germany

    H. Kolanoski

  6. II. Institut für Experimentalphysik der Universität Hamburg, D-2000, Hamburg, Federal Republic of Germany

    T. Kracht, J. Krüger, E. Lohrmann, G. Poelz & W. Zeuner

  7. Department of Physics, Imperial College, SW7 2 AZ, London, UK

    A. Hassard, J. Shulman, D. Su & I. Tomalin

  8. Universidad Autónoma de Madrid, 28049, Madrid, Spain

    A. Leites, J. del Peso, L. Hervas & M. Traseira

  9. Department of Nuclear Physics, Oxford University, OX1 3RH, Oxford, UK

    M. G. Bowler, P. N. Burrows, R. J. Cashmore, G. P. Heath & M. E. Veitch

  10. Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxon, UK

    J. C. Hart & D. H. Saxon

  11. Fachbereich Physik der Universität-Gesamthochschule Siegen, D-5900, Siegen, Federal Republic of Germany

    S. Brandt, M. Holder & L. Labarga

  12. Weizmann Institute, 76100, Rehovot, Israel

    Y. Eisenberg, U. Karshon, G. Mikenberg, A. Montag, D. Revel, E. Ronat, A. N. Wainer & G. Yekutieli

  13. Department of Physics, University of Wisconsin, 53706, Madison, WI, USA

    D. Muller, S. Ritz, M. Takashima, Sau Lan Wu, G. Zobernig & A. Caldwell

Authors
  1. W. Braunschweig
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  2. R. Gerhards
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  3. F. J. Kirschfink
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  4. H. -U. Martyn
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  5. H. M. Fischer
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  6. H. Hartmann
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  7. J. Hartmann
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  8. E. Hilger
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  9. A. Jocksch
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  10. R. Wedemeyer
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  11. B. Foster
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  12. A. J. Martin
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  13. F. Barreiro
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  14. E. Bernardi
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  16. K. Genser
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  17. H. Kowalski
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  18. B. Löhr
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  19. D. Lüke
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  20. D. Notz
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  21. J. M. Pawlak
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  22. K. -U. Pösnecker
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  23. E. Ros
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  24. R. Walczak
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  25. G. Wolf
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  26. H. Kolanoski
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  27. T. Kracht
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  28. J. Krüger
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  29. E. Lohrmann
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  30. G. Poelz
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  31. W. Zeuner
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  32. A. Hassard
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  33. J. Shulman
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  34. D. Su
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  35. I. Tomalin
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  36. A. Leites
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  37. J. del Peso
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  38. L. Hervas
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  39. M. Traseira
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  40. M. G. Bowler
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  41. P. N. Burrows
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  42. R. J. Cashmore
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  43. G. P. Heath
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  44. M. E. Veitch
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  45. J. C. Hart
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  46. D. H. Saxon
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  47. S. Brandt
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  48. M. Holder
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  49. L. Labarga
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  50. Y. Eisenberg
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  51. U. Karshon
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  52. G. Mikenberg
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  53. A. Montag
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  54. D. Revel
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  55. E. Ronat
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  56. A. N. Wainer
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  57. G. Yekutieli
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  58. D. Muller
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  59. S. Ritz
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  60. M. Takashima
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  61. Sau Lan Wu
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  62. G. Zobernig
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  63. A. Caldwell
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Consortia

TASSO Collaboration

Additional information

Partially supported by DGICIT, Spain, and Kfz-Karlsruhe, FRG

Supported by Bundesministerium für Forschung und Technologie

Supported by UK Science and Engineering Research Council

Supported by CAICYT

Supported by the Minerva Gesellschaft für Forschung GmbH

Supported by US Dept. of Energy, contract DE-AC0276ER000881 and by US Nat. Sci. Foundation Grant no INT-8313994 for travel

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TASSO Collaboration., Braunschweig, W., Gerhards, R. et al. Experimental study of jet masses ine + e − annihilation at c.m. energies between 12 and 43.5 GeV. Z. Phys. C - Particles and Fields 45, 11–23 (1989). https://doi.org/10.1007/BF01556666

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  • DOI: https://doi.org/10.1007/BF01556666

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