Et spectra for √3 = 31 A-GeV light ion collisions at the CERN-ISR: Data and analysis

  • Bruce Callen
3. Experimental Data
Part of the Lecture Notes in Physics book series (LNP, volume 221)


Preliminary transverse energy (Et) cross-sections for p-α, α-α, and d-d collisions measured with the Axial Field Spectrometer hadronic calorimeter are presented. The spectra from these three light ion systems are compared with p-p spectra at the same √s, using the Wounded Nucleon Model. We find that the data are well described by this ‘participant’ model. Although the Et spectra approach or exceed the p-p kinematic limit for all three systems, no evidence for any anomalous behavior is found. Circularity studies show no signs of significant jet production in any of the spectra, even at the highest values of Et. We also apply our model to neutral energy data from the BCMOR collaboration at the ISR. Finally, we discuss modifications to the Wounded Nucleon Model.


Rapidity Range Circularity Distribution Gluon String Dual Parton Model Minimum Bias Trigger 
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  1. 1).
    A. Dar and J. Vary, Phys. Rev. D6 (1972) 2412ADSGoogle Scholar
  2. 1)a.
    A. Bialas, M. Bleszynski, and W. Czyz, Nucl. Phys. B111 (1976) 461.ADSCrossRefGoogle Scholar
  3. 2).
    T. Akesson et al., Phys. Lett. 119B (1982) 464.ADSCrossRefGoogle Scholar
  4. 3).
    H. Brody, et al., Phys. Rev. D 28 (1983) 2334.ADSGoogle Scholar
  5. 4).
    W.Q. Chao and H.J. Pirner, Z. Phys. C13 (1982) 165.ADSGoogle Scholar
  6. 5).
    A. Bialas, W. Czyz, and W. Furmanski, Acta Phys. Pol. B8 (1977) 585.Google Scholar
  7. 5)a.
    A. Bialas, W. Czyz, and L. Lesniak, Z. Phys. C13 (1982) 147.ADSGoogle Scholar
  8. 6).
    H. Gordon et al., Phys. Rev. D28 (1983) 2736.ADSGoogle Scholar
  9. 7).
    T. Akesson et al., Phys. Lett. 128B (1983) 354.ADSCrossRefGoogle Scholar
  10. 8).
    H.E. Miettinen, Nucl. Phys. A418 (1984) 315c.Google Scholar
  11. 9).
    R. Brown, et al., Phys. Rev. Lett. 50 (1983) 11.ADSCrossRefGoogle Scholar
  12. 10).
    T. Akesson et al., Phys. Lett. 118B (1982) 185.ADSCrossRefGoogle Scholar
  13. 10)a.
    T. Akesson et al., Phys. Lett. 118B (1982) 193.ADSCrossRefGoogle Scholar
  14. 11).
    H. Gordon et al., Nucl. Instrum. Methods 196 (1982) 303.ADSCrossRefGoogle Scholar
  15. 11)a.
    O. Botner et al., Nucl. Instrum. Methods 196 (1982) 314.ADSCrossRefGoogle Scholar
  16. 11)b.
    O. Botner et al., Nucl. Instrum. Methods 179 (1981) 45.ADSCrossRefGoogle Scholar
  17. 12).
    A.L.S. Angelis, et al., Submitted to Physics Letters B.Google Scholar

Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • Bruce Callen
    • 1
  1. 1.University of PennsylvaniaPhiladelphiaUSA

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