PI+ P --> PSI(3685) X
Max results
Sort by Reverse order

Showing 1 of 1 results

Experimental Results on $J/\psi$ Production by $\pi^\pm$, $K^\pm$, $p$ and $\bar{p}$ Incident on Hydrogen at 39.5-{GeV}/$c$

Corden, M.J. ; Dowell, J.D. ; Garvey, J. ; et al.
Phys.Lett.B 98 (1981) 220-224, 1981.
Inspire Record 155716 DOI 10.17182/hepdata.5488

J/ ψ production at 40 GeV/ c by π ± , K ± , p and p incident on hydrogen has been studied and results compared with those obtained on tungsten in the same experiment. On hydrogen, J/ψ cross-section ratios relative to π − have been measured to be (for x F > 0) σ(π − ) : σ(π + ) : σ( p ) : σ( p ) = 1 : (0.78 ± 0.09) : (0.83 ± 0.35) : (0.07 ± 0.04) . The suppression of the proton induced cross sections shows the importance of calence quark-antiquark fusiin J/ψ production at this energy (i.e. M J 2 / ψ / s =0.13).

3 data tables
Table 1

ERRORS ONLY STAT.

Table 2

ERRORS ONLY STAT.

Table 3

No description provided.