Production of J ψ in 16 and 22 GeVπCu collisions

Authors

J. LeBritton, University of Rochester
D. McCal, University of Rochester
A. C. Melissinos, University of Rochester
W. Metcalf, University of Rochester
A. Abashian, University of Rochester
G. R. Kalbfleisch, University of Rochester
J. Alspector, University of Rochester
S. Borenstein, University of Rochester
R. C. Strand, University of Rochester

Document Type

Article

Publication Date

2-26-1979

Abstract

We have measured the inclusive production of J ψ in 16 and 22 GeV π- copper collisions in a wide aperture magnetic spectrometer. The cross section per Cu nucleus for x > 0 corrected for branching ratio is 64 ± 38 nb at 16 GeV and 196 ± 38 nb at 22 GeV. As threshold is approached, the mean values of the Feynman x distribution increase and the cross section for J ψ production drops steeply. This can be understood in terms of the quark-fusion model where the antiquark content of the pion makes an increasingly significant contribution as M2 s increases. © 1979.

Publication Source (Journal or Book title)

Physics Letters B

First Page

401

Last Page

404

Recommended Citation

LeBritton, J., McCal, D., Melissinos, A., Metcalf, W., Abashian, A., Kalbfleisch, G., Alspector, J., Borenstein, S., & Strand, R. (1979). Production of J ψ in 16 and 22 GeVπCu collisions. Physics Letters B, 81 (3-4), 401-404. https://doi.org/10.1016/0370-2693(79)90363-0