Abstract
We present an analysis of minimum bias events from proton-proton collisions at\(\sqrt s = 7GeV\) in the CERN ISR. We remove the effects of both the leading protons and compare theB=0 mesonic residue of the events to the hadronic events of similar energy produced ine + e − collisions. This comparison is presented in terms of the standard jet-type analyses involving quantities such as sphericity and aplanarity. We find significant differences between these data and the data frome + e − annihilations. The data of this experiment are consistent with the predictions of a longitudinal phase space model.
Similar content being viewed by others
References
R.I. Schwitters et al.: Phys. Rev. Lett.35, 1320 (1975); G. Hansen et al.: Phys. Rev. Lett.35, 1609 (1975)
PLUTO Collaboration, Ch. Berger et al.: Phys. Lett.78B, 176 (1978)
TASSO Collaboration, R. Brandelik et al.: Phys. Lett.86B, 243 (1979); Mark J. Collaboration, D.P. Barber et al.: Phys. Rev. Lett.43, 830 (1979) PLUTO Collaboration, Ch. Berger et al.: Phys. Lett.86 B, 418 (1979); JADE Collaboration, W. Bartel et al.: Phys. Lett.91 B, 142 (1980)
CCHK Collaboration, D. Drijard et al.: Nucl. Phys. B155, 269 (1979); CCHK Collaboration, D. Drijard et al.: Nucl. Phys. B156, 309 (1979)
M. Basile et al.: Phys. Lett.92B, 367 (1980); M. Basile et al.: Planar jets inpp collisions, CERN/EP 80-113, 27 June 1980 (Madison); M. Basile et al.: The energy dependence of charged particle multiplicity inpp collisions, CERN/EP 80-112, 27 June 1980 (Madison); M. Basile et al.: The fractional momentum distribution inpp collisions compared toe + e − annihilation, CERN/EP 80-111, 27 June 1980 (Madison)
R. Bouclier et al.: Nucl. Instrum. Methods115, 235 (1974)
R. Bouclier et al.: Nucl. Instrum. Methods125, 19 (1975)
CCHK Collaboration, M. Della Negra et al.: Nucl. Phys. B127, 1 (1977); W. Bell et al.: Nucl. Instrum. Methods156, 111 (1978)
W. Bell et al.: Nucl. Instrum Methods125, 437 (1975)
M. Della Negra, A. Norton: (unpublished), adopted from H. Wind: Function parametrization, Proc. CERN computing and data processing school, Yellow Report CERN 72-21; D. Drijard: SPLINE track fit, SFM internal Note 1976, adapted from H. Wind: CERN/NP/DHG 73-5 (1973)
J.W. Chapman et al.: Phys. Rev. Lett.32, 257 (1974); P. Capiluppi et al.: Nucl. Phys. B70, 1 (1974); J. Singh et al.: Nucl. Phys. B140, 189 (1978)
TASSO Collaboration, R. Brandelik et al.: Phys. Lett.89B, 418 (1980); TASSO Colaboration, R. Brandelik et al.: Phys. Lett83B, 261 (1979)
L. Angelini et al.: The structure of final states in lowp T pp-interactions at high energies, BARI-GT/81-05, April 1981
A. Sheng et al.: Phys. Rev. D11, 1733 (1975)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Breakstone, A., Crawley, H.B., Firestone, A. et al. Study of hadronic events inpp collisions at\(\sqrt s = 62GeV\) and comparison with hadronic events ine + e − collisions. Z. Phys. C - Particles and Fields 11, 203–209 (1981). https://doi.org/10.1007/BF01545677
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01545677