Test of charge-conjugation invariance in p¯p interactions
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Using p̄p interactions at s=5.44 GeV we have tested for evidence of C noninvariance through a comparison of the transverse-momentum distributions of particle and antiparticle produced at 90°in the center of mass. We found an average charge asymmetry for pions with p between 0.5 and 2.7 GeV/c of Δ=(N+-N-)(N++N-)=0.006±0.009. This corresponds to a limit on the magnitude of the C-violating (relative to C-conserving) amplitude of Reα≤0.0045. © 1978 The American Physical Society.
author list (cited authors)
Cester, R., Fitch, V. L., Kadel, R. W., Webb, R. C., Whittaker, J. D., Witherell, M. S., & May, M.