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Abstract：
The correlation of forward-backward multiplicities about 9×104 events under minimum-bias trigger condition of UA-1 experiment on 540 GeV proton antiproton collider at CERN is reported. Different cut-off condition and different acceptance correction methods of UA-1 central detector are selected in order to obtain flater rapidity distribution. The correlation strength of short, long, full, and fragmentation range is given. Correlation between regions which are symmetrical and unsymmetrical to the plane with axial angle θ=90° is discussed. The correlation strength in short range forward-backward regions with equal charge is compared with that of opposite charge. All results are compared with other works and with some theoretical models.
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References
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YE Wei
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