Two-Particle Quantum-Number Correlations in 400-GeV/<i>c</i> Proton-Nucleus Collisions

D. A. Finley; W. R. Ditzler; O. E. Johnson; F. J. Loeffler; E. Shibata; C. W. Akerloff; P. Alley; R. Fabrizio; D. Koltick; D. I. Meyer; R. Thun; D. Bintinger; R. L. Loveless; R. A. Lundy; K. C. Stanfield; D. D. Yovanovitch

doi:10.1103/PhysRevLett.42.1028

Two-Particle Quantum-Number Correlations in 400-GeV/c Proton-Nucleus Collisions

D. A. Finley, W. R. Ditzler, O. E. Johnson, F. J. Loeffler, E. Shibata, C. W. Akerloff, P. Alley, R. Fabrizio, D. Koltick, D. I. Meyer, R. Thun, D. Bintinger, R. L. Loveless, R. A. Lundy, K. C. Stanfield, and D. D. Yovanovitch

Phys. Rev. Lett. 42, 1028 – Published 16 April 1979

Abstract

We have measured two-particle quantum-number correlations in 400-GeV/c proton-nucleus collisions. A double-arm spectrometer was used to detect two charged particles produced near rapidity $y_{c . m .} = - 0.4$ in the proton-nucleon center-of-mass system. In proton-beryllium collisions we observe positive $p \bar{p}$ and $K^{+} K^{-}$ correlations which are independent of the transverse momenta of the particles over the range $1 <~ p_{⊥} <~ 1.8$ GeV/c. These correlations are weaker in proton-lead interactions.

Received 30 November 1978

DOI:https://doi.org/10.1103/PhysRevLett.42.1028

Authors & Affiliations

D. A. Finley^*, W. R. Ditzler^†, O. E. Johnson, F. J. Loeffler, and E. Shibata

Purdue University, West Lafayette, Indiana 47907

C. W. Akerloff, P. Alley^‡, R. Fabrizio, D. Koltick, D. I. Meyer, and R. Thun

University of Michigan, Ann Arbor, Michigan 48109

D. Bintinger, R. L. Loveless, R. A. Lundy, K. C. Stanfield, and D. D. Yovanovitch

Fermi National Accelerator Laboratory, Batavia, Illinois 60510

^*Present address: State University of New York at Stony Brook, Stony Brook, N. Y. 11794.
^†Present address: Argonne National Laboratory, Argonne, Ill. 60439.
^‡Present address: LeCroy Research Systems/Far West, 1806 Embarcadero Road, Palo Alto, Calif. 94303.