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Bose-Einstein correlations observed ine + e annihilation at a centre of mass energy of 34 GeV

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Zeitschrift für Physik C Particles and Fields

Abstract

Bose-Einstein correlations between pairs of charged particles produced ine + e annihilation into hadronic final states have been studied as a function ofQ 2, the relative momentum squared of the two particles in their centre of mass, and as functions of various pairs of kinematic variables. The observed Bose-Einstein enhancement reveals correlation between the position and time of particle emission, and the space-time structure of the source is shown to differ from that of a pion fireball. While most features of the data are well accounted for in terms of the space-time structure of a simple string model, the correlations are better described by the simple function 1+αe −β Q 2. The implications of this result are discussed. The principal features of three particle correlations are explained in terms of the structure of the source inferred from the observed two particle correlations.

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On leave from Weizmann Institute, Rehovot, Israel

On leave from Institute of Nuclear Physics, Cracow, Poland

On leave from Warsaw University, Poland

Now at CERN

On leave from University of Malaya, Kuala Lumpur

Supported by the Bundesministerium für Forschung und Technologie

Supported by the UK Science and Engineering Research Council

Supported by the Minerva Gesellschaft für Forschung mbH

Supported by the US Department of Energy, contract DE-AC02-76ER 00881 and by the U.S. National Science Foundation Grant Number INT-8313994 for travel

Supported by CAICYT

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TASSO Collaboration., Althoff, M., Braunschweig, W. et al. Bose-Einstein correlations observed ine + e annihilation at a centre of mass energy of 34 GeV. Z. Phys. C - Particles and Fields 30, 355–369 (1986). https://doi.org/10.1007/BF01557599

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