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A study of jets fromb quarks produced ine + e − annihilations at\(\sqrt s = 35 - 46\) GeV

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Zeitschrift für Physik C Particles and Fields

Abstract

Ab enrichment technique using the longB lifetime has been developed, by which ∼600 hadronic events with >65%b purity are obtained. The properties of the associated jets are studied, with comparisons made between them and those in hadronic data in whichb quarks make up only 10% of the total, and jets in Monte Carlo events. The distributions in rapidity and multiplicity yield two new determinations of the fragmentation variablez forb hadrons and confirm that theb fragmentation function is hard. We also present the first measurement of the relative strength of the strong interaction coupling of theb quark compared with the average of all flavours.

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Author information

Author notes

  1. B. Bock

    Present address: Krupp Atlas Electr. GmbH, Bremen, FRG

  2. J. Chwastowski

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

  3. A. Eskreys

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

  4. K. Genser & R. Walczak

    Present address: Warsaw University, Poland

  5. P. Mattig

    Present address: IPP Canada, Carleton University, Ottawa, Canada

  6. J. Pawlak

    Present address: Warsaw University, Poland

  7. T. Kracht

    Present address: Hasylab, DESY, Hamburg, FRG

  8. D. Su

    Present address: Rutherford Appleton Laboratory, Didcot, Oxon, UK

  9. I. Tomalin

    Present address: Impertial College, London, UK

  10. J. M. Yelton

    Present address: University of Florida, 32611, Gainesville, FL, USA

  11. G. E. Forden

    Present address: SUNY Stony Brook, Stony Brook, NY, USA

  12. L. Labarga

    Present address: SLAC, Stanford, California, USA

  13. D. Strom

    Present address: University of Chicago, Chicago, Illinois, USA

Authors and Affiliations

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

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

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

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

  3. H.H. Wills Physics Laboratory, University of Bristol, Bristol, UK

    B. Foster, A. J. Martin & A. J. Sephton

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

    E. Bernardi, J. Chwastowski, A. Eskreys, K. Gather, K. Genser, H. Hultschig, P. Joos, H. Kowalski, A. Ladage, B. Löhr, D. Lüke, P. Mattig, D. Notz, J. Pawlak, K. -U. Pösnecker, E. Ros, W. Schütte, D. Trines, R. Walczak & G. Wolf

  5. Physikalisches Institut, Universität Dortmund, Federal Republic of Germany

    H. Kolanoski

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

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

  7. Department of Physics, Imperial College, London, UK

    A. T. Belk, D. M. Binnie, J. F. Hassard, J. Shulman & D. Su

  8. Universidad Autonoma de Madrid, Madrid, Spain

    F. Barreiro, A. Leites & J. del Peso

  9. Department of Nuclear Physics, Oxford University, Oxford, UK

    C. Balkwill, M. G. Bowler, P. N. Burrows, R. J. Cashmore, G. P. Heath, P. Ratoff, I. M. Silvester, I. Tomalin, M. E. Veitch & J. M. Yelton

  10. Department of Physics, Queen Mary College, London, UK

    S. L. Lloyd

  11. Rutherford Appleton Laboratory, Chilton, Didcot, UK

    G. E. Forden, J. C. Hart & D. H. Saxon

  12. Fachbereich Physik der Universität-Gesamthochschule Siegen, Federal Republic of Germany

    S. Brandt, M. Holder & L. Labarga

  13. Weizmann Institute, Rehovot, Israel

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

  14. Department of Physics, University of Wisconsin, Madison, WI, USA

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

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. B. Bock
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  6. H. M. Fischer
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  7. H. Hartmann
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  8. J. Hartmann
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  9. E. Hilger
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  10. A. Jocksch
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  11. R. Wedemeyer
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  12. B. Foster
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  13. A. J. Martin
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  14. A. J. Sephton
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  15. E. Bernardi
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  17. A. Eskreys
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  18. K. Gather
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  19. K. Genser
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  20. H. Hultschig
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  21. P. Joos
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  22. H. Kowalski
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  23. A. Ladage
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  26. P. Mattig
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  27. D. Notz
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  28. J. Pawlak
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  29. K. -U. Pösnecker
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  30. E. Ros
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  31. W. Schütte
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  32. D. Trines
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  33. R. Walczak
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  34. G. Wolf
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  35. H. Kolanoski
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  36. T. Kracht
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  45. D. Su
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  46. F. Barreiro
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  47. A. Leites
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  48. J. del Peso
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  49. C. Balkwill
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  54. P. Ratoff
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  55. I. M. Silvester
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  56. I. Tomalin
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  57. M. E. Veitch
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  59. S. L. Lloyd
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  72. A. Shapira
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  74. G. Yekutieli
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  75. D. Muller
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  76. S. Ritz
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  77. D. Strom
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  78. M. Takashima
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  79. Sau Lan Wu
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  80. G. Zobernig
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TASSO Collaboration

Additional information

Partially supported by grant CPBP 0.106

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 INT8313994 for travel

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TASSO Collaboration., Braunschweig, W., Gerhards, R. et al. A study of jets fromb quarks produced ine + e − annihilations at\(\sqrt s = 35 - 46\) GeV. Z. Phys. C - Particles and Fields 42, 17–31 (1989). https://doi.org/10.1007/BF01565125

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  • DOI: https://doi.org/10.1007/BF01565125

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