Skip to main content
SpringerLink
Log in

Evidence for direct photons from quarks in electron-positron annihilation

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

Hadronic events frome + e −-annihilations with a high energy isolated photon have been investigated at C.M. energies between 14 GeV and 44 GeV. A forward-backward asymmetryA γ of the positively charged jet with respect to the incident positron direction has been found:A γγ=−0.32±0.07, providing evidence for photon bremsstrahlung from quarks. The forward-backward asymmetry of all hadronic events at C.M. energies between 30 GeV and 36 GeV has been measured. The value, corrected for the limited polar angle acceptance of the detector, is:A=+0.021±0.005.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. T.F. Walsh, P.M. Zerwas: Phys. Lett.44B (1973) 195

    Google Scholar 

  2. S.J. Brodsky, C.E. Carlson, R. Suaya: Phys. Rev.D14 (1976) 2264

    Google Scholar 

  3. E. Laermann, T.F. Walsh, I. Schmitt, P.M. Zerwas: Nucl. Phys.B207 (1982) 205

    Google Scholar 

  4. M.Y. Han, Y. Nambu: Phys. Rev.138 (1965) 1006

    Google Scholar 

  5. T. Jayaraman, G. Rajasekaran, S.D. Rindani: Phys. Rev.D32 (1985) 1262

    Google Scholar 

  6. TASSO Coll. R. Brandelik et al. Phys. Lett.108B (1982) 71

    Google Scholar 

  7. TASSO Coll. R. Brandelik et al.: Phys. Lett.83B (1979) 261

    Google Scholar 

  8. TASSO Coll. R. Brandelik et al.: Phys. Lett.94B (1980) 437

    Google Scholar 

  9. TASSO Coll. M. Althoff et al.: Phys. Lett.146B (1985) 443

    Google Scholar 

  10. TASSO Coll. M. Althoff et al.: Z. Phys. C—Particles and Fields26 (1984) 337

    Google Scholar 

  11. TASSO Coll. W. Braunschweig et al.: Z. Phys. C—Particles and Fields33 (1986) 13

    Google Scholar 

  12. R. L. Ford, W.R. Nelson: SLAC Report 265, UC-32 (1985)

  13. TASSO Coll. R. Brandelik et al.: Phys. Lett.113B (1982) 499

    Google Scholar 

  14. TASSO Coll. R. Brandelik et al.: Phys. Lett.114B, (1982) 65

    Google Scholar 

  15. P. Hoyer et al.: Nucl. Phys.B161 (1979) 349

    Google Scholar 

  16. R.D. Field, R.P. Feynman: Nucl. Phys.B136 (1978) 1

    Google Scholar 

  17. F.A. Berends, R. Kleiss: Nucl. Phys.B178 (1981) 141

    Google Scholar 

  18. A. Grant: Nucl. Instrum. Methods131 (1975) 167

    Google Scholar 

  19. H. Fesefeldt: Aachen PITHA Report 85-02

  20. TASSO Coll. R. Brandelik et al.: Phys. Lett.100B (1981) 117

    Google Scholar 

  21. PLUTO Coll. Ch. Berger et al.: Nucl. Phys.B124 (1983) 189

    Google Scholar 

  22. CLEO Coll. S. Berends et al.: Phys. Rev.D31 (1985) 2161

    Google Scholar 

  23. HRS Coll. M. Derrick et al.: Phys. Rev. Lett.54 (1985) 2568

    Google Scholar 

  24. TASSO Coll. M. Althoff et al.: Z. Phys. C—Particles and Fields29 (1985) 347

    Google Scholar 

  25. T. Sjöstrand: Comput. Phys. Commun.27 (1982) 243

    Google Scholar 

  26. T. Sjöstrand: Comput. Phys. Commun.28 (1983) 229

    Google Scholar 

  27. W. Zeuner: Dissertation, Hamburg (1988) and DESY Internal Report F35D-88-01

  28. TASSO Coll. R. Brandelik et al.: Phys. Lett.110B (1982) 173

    Google Scholar 

  29. F.A. Berends, R. Kleiss, S. Jadach: Nucl. Phys.B202 (1982) 63

    Google Scholar 

  30. F.A. Berends, R. Kleiss, S. Jadach: Comput. Phys. Commun.29 (1983) 185

    Google Scholar 

  31. MAC Coll. E. Fernandez et al.: Phys. Rev. Lett.54 (1985) 95

    Google Scholar 

  32. JADE Coll. W. Bartel et al.: Z. Phys. C—Particles and Fields28 (1985) 343

    Google Scholar 

  33. M.S. Gold: Ph.D. Thesis, Berkeley, LBL-22433 (1986)

  34. S. Weinberg: Phys. Rev. Lett.19 (1967) 1264

    Google Scholar 

  35. A. Salam: Proceedings of the 8th Nobel Symposium. N. Svartholm (ed.), p. 367: Stockholm: Almquist and Wiksells 1968

    Google Scholar 

  36. R. Budny: Phys. Lett.55B (1975) 227

    Google Scholar 

  37. Proceedings of the 1975 PEP summer study, LBL-4800/SLAC-190, p. 31.

  38. MAC Coll. E. Fernandez et al.: Phys. Rev. Lett.58 (1987) 1080

    Google Scholar 

  39. P. Warming, Ph.D. Thesis, Hamburg (1987)

Download references

Author information

Author notes

  1. A. Eskreys

    Present address: I. Physikalisches Institut der RWTH Aachen, Federal Republic of Germany

  2. T. Kracht

    Present address: Deutsches Elektronen-Synchrotron DESY, Hamburg, Federal Republic of Germany

  3. F. Barreiro (Alexander v. Humboldt Fellow)

    Present address: Universidad Autonoma de Madrid, Madrid, Spain

  4. B. Bock

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

  5. E. Bernardi

    Present address: Robert Bosch GmbH, Schwieberdingen, FRG

  6. J. Chwastowski

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

  7. K. Genser, J. M. Pawlak, T. Tymieniecka & R. Walczak

    Present address: Warsaw University, Poland

  8. P. Mättig

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

  9. G. Tysarczyk

    Present address: University of Heidelberg, Heidelberg, FRG

  10. G. E. Forden

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

  11. L. Labarga

    Present address: SLAC, Stanford, CA, USA

  12. D. Strom

    Present address: University of Chicago, Chicago, IL, 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

    F. Barreiro (Alexander v. Humboldt Fellow), E. Bernardi, J. Chwastowski, A. Eskreys, K. Gather, K. Genser, H. Hultschig, P. Joos, H. Kowalski, A. Ladage, B. Löhr, D. Lüke, P. Mättig, D. Notz, J. M. Pawlak, K. -U. Pösnecker, E. Ros, D. Trines, T. Tymieniecka, R. Walczak & G. Wolf

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

    H. Kolanoski

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

    W. Gerhardt, T. Kracht, J. Krüger, E. Lohrmann, G. Poelz, P. Rehders, G. Tysarczyk & W. Zeuner

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

    J. Hassard, J. Shulman & D. Su

  8. Universidad Autonoma de Madrid, Madrid, Spain

    A. Leites & J. del Peso

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

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

  10. Rutherford Appleton Laboratory, Chilton, Didcot, UK

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

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

    S. Brandt, M. Holder & L. Labarga

  12. Weizmann Institute, Rehovot, Israel

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

  13. Department of Physics, University of Wisconsin, Madison, Wis., USA

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

Authors
  1. W. Braunschweig
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. Gerhards
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. F. J. Kirschfink
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. H. -U. Martyn
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. B. Bock
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. H. M. Fischer
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. H. Hartmann
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. J. Hartmann
    View author publications

    You can also search for this author in PubMed Google Scholar

  9. E. Hilger
    View author publications

    You can also search for this author in PubMed Google Scholar

  10. A. Jocksch
    View author publications

    You can also search for this author in PubMed Google Scholar

  11. R. Wedemeyer
    View author publications

    You can also search for this author in PubMed Google Scholar

  12. B. Foster
    View author publications

    You can also search for this author in PubMed Google Scholar

  13. A. J. Martin
    View author publications

    You can also search for this author in PubMed Google Scholar

  14. A. J. Sephton
    View author publications

    You can also search for this author in PubMed Google Scholar

  15. F. Barreiro
    View author publications

    You can also search for this author in PubMed Google Scholar

  16. E. Bernardi
    View author publications

    You can also search for this author in PubMed Google Scholar

  17. J. Chwastowski
    View author publications

    You can also search for this author in PubMed Google Scholar

  18. A. Eskreys
    View author publications

    You can also search for this author in PubMed Google Scholar

  19. K. Gather
    View author publications

    You can also search for this author in PubMed Google Scholar

  20. K. Genser
    View author publications

    You can also search for this author in PubMed Google Scholar

  21. H. Hultschig
    View author publications

    You can also search for this author in PubMed Google Scholar

  22. P. Joos
    View author publications

    You can also search for this author in PubMed Google Scholar

  23. H. Kowalski
    View author publications

    You can also search for this author in PubMed Google Scholar

  24. A. Ladage
    View author publications

    You can also search for this author in PubMed Google Scholar

  25. B. Löhr
    View author publications

    You can also search for this author in PubMed Google Scholar

  26. D. Lüke
    View author publications

    You can also search for this author in PubMed Google Scholar

  27. P. Mättig
    View author publications

    You can also search for this author in PubMed Google Scholar

  28. D. Notz
    View author publications

    You can also search for this author in PubMed Google Scholar

  29. J. M. Pawlak
    View author publications

    You can also search for this author in PubMed Google Scholar

  30. K. -U. Pösnecker
    View author publications

    You can also search for this author in PubMed Google Scholar

  31. E. Ros
    View author publications

    You can also search for this author in PubMed Google Scholar

  32. D. Trines
    View author publications

    You can also search for this author in PubMed Google Scholar

  33. T. Tymieniecka
    View author publications

    You can also search for this author in PubMed Google Scholar

  34. R. Walczak
    View author publications

    You can also search for this author in PubMed Google Scholar

  35. G. Wolf
    View author publications

    You can also search for this author in PubMed Google Scholar

  36. H. Kolanoski
    View author publications

    You can also search for this author in PubMed Google Scholar

  37. W. Gerhardt
    View author publications

    You can also search for this author in PubMed Google Scholar

  38. T. Kracht
    View author publications

    You can also search for this author in PubMed Google Scholar

  39. J. Krüger
    View author publications

    You can also search for this author in PubMed Google Scholar

  40. E. Lohrmann
    View author publications

    You can also search for this author in PubMed Google Scholar

  41. G. Poelz
    View author publications

    You can also search for this author in PubMed Google Scholar

  42. P. Rehders
    View author publications

    You can also search for this author in PubMed Google Scholar

  43. G. Tysarczyk
    View author publications

    You can also search for this author in PubMed Google Scholar

  44. W. Zeuner
    View author publications

    You can also search for this author in PubMed Google Scholar

  45. J. Hassard
    View author publications

    You can also search for this author in PubMed Google Scholar

  46. J. Shulman
    View author publications

    You can also search for this author in PubMed Google Scholar

  47. D. Su
    View author publications

    You can also search for this author in PubMed Google Scholar

  48. A. Leites
    View author publications

    You can also search for this author in PubMed Google Scholar

  49. J. del Peso
    View author publications

    You can also search for this author in PubMed Google Scholar

  50. C. Balkwill
    View author publications

    You can also search for this author in PubMed Google Scholar

  51. M. G. Bowler
    View author publications

    You can also search for this author in PubMed Google Scholar

  52. P. N. Burrows
    View author publications

    You can also search for this author in PubMed Google Scholar

  53. G. P. Heath
    View author publications

    You can also search for this author in PubMed Google Scholar

  54. P. Ratoff
    View author publications

    You can also search for this author in PubMed Google Scholar

  55. I. Silvester
    View author publications

    You can also search for this author in PubMed Google Scholar

  56. I. R. Tomalin
    View author publications

    You can also search for this author in PubMed Google Scholar

  57. M. E. Veitch
    View author publications

    You can also search for this author in PubMed Google Scholar

  58. G. E. Forden
    View author publications

    You can also search for this author in PubMed Google Scholar

  59. J. C. Hart
    View author publications

    You can also search for this author in PubMed Google Scholar

  60. D. H. Saxon
    View author publications

    You can also search for this author in PubMed Google Scholar

  61. S. Brandt
    View author publications

    You can also search for this author in PubMed Google Scholar

  62. M. Holder
    View author publications

    You can also search for this author in PubMed Google Scholar

  63. L. Labarga
    View author publications

    You can also search for this author in PubMed Google Scholar

  64. Y. Eisenberg
    View author publications

    You can also search for this author in PubMed Google Scholar

  65. U. Karshon
    View author publications

    You can also search for this author in PubMed Google Scholar

  66. G. Mikenberg
    View author publications

    You can also search for this author in PubMed Google Scholar

  67. A. Montag
    View author publications

    You can also search for this author in PubMed Google Scholar

  68. D. Revel
    View author publications

    You can also search for this author in PubMed Google Scholar

  69. E. Ronat
    View author publications

    You can also search for this author in PubMed Google Scholar

  70. A. Shapira
    View author publications

    You can also search for this author in PubMed Google Scholar

  71. N. Wainer
    View author publications

    You can also search for this author in PubMed Google Scholar

  72. G. Yekutieli
    View author publications

    You can also search for this author in PubMed Google Scholar

  73. D. Muller
    View author publications

    You can also search for this author in PubMed Google Scholar

  74. S. Ritz
    View author publications

    You can also search for this author in PubMed Google Scholar

  75. D. Strom
    View author publications

    You can also search for this author in PubMed Google Scholar

  76. M. Takashima
    View author publications

    You can also search for this author in PubMed Google Scholar

  77. Sau Lan Wu
    View author publications

    You can also search for this author in PubMed Google Scholar

  78. G. Zobernig
    View author publications

    You can also search for this author in PubMed Google Scholar

Consortia

TASSO Collaboration

Additional information

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-AC02-76ER000881 and by US Nat. Sci. Foundation Grant number INT-8313994 for travel

Partially supported by grant CPBP 01.06

Rights and permissions

Reprints and permissions

About this article

Cite this article

TASSO Collaboration., Braunschweig, W., Gerhards, R. et al. Evidence for direct photons from quarks in electron-positron annihilation. Z. Phys. C - Particles and Fields 41, 385–393 (1988). https://doi.org/10.1007/BF01585622

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01585622

Keywords

Search

Navigation