@article{3045521,
    title = "PRODUCTION OF J/PSI VIA PSI' AND CHI DECAY IN 300-GEV/C PROTON-NUCLEON
AND PI+/--NUCLEON INTERACTIONS",
    author = "ANTONIAZZI, L and ARENTON, M and CAO, Z and CHEN, T and CONETTI, S and and COX, B and DELCHAMPS, S and FORTNEY, L and GUFFEY, K and HAIRE, M and and IAONNOU, P and JENKINS, CM and JUDD, DJ and KOURKOUMELIS, C and and MANOUSAKISKATSIKAKIS, A and KUZMINSKI, J and LECOMPTE, T and MARCHIONNI, and A and HE, M and MAZUR, PO and MURPHY, CT and PRAMANTIOTIS, P and and RAMEIKA, R and RESVANIS, LK and ROSATI, M and ROSEN, J and SHEN, C and and SHEN, Q and SIMARD, A and SMITH, RP and SPIEGEL, L and STAIRS, DG and and TAN, Y and TESAREK, RJ and TURKINGTON, T and TURNBULL, L and TURKOT, F and and TZAMARIAS, S and VOULGARIS, G and WAGONER, DE and WANG, C and YANG, and W and YAO, N and ZHANG, N and ZHANG, X and ZIOULAS, G and ZOU, B",
    journal = "Physical Review and Physical Review Letters Index",
    year = "1993",
    volume = "70",
    number = "4",
    pages = "383-386",
    publisher = "AMERICAN PHYSICAL SOC",
    issn = "0094-0003",
    doi = "10.1103/PhysRevLett.70.383",
    abstract = "The production of the chi2 and chi2 states of charmonium has been
observed in 300 GeV/c pi+/-N and pN interactions. The fraction of the
total inclusive J/psi production due to radiative chi decay has been
determined to be 0.40 +/- 0.04, 0.37 +/- 0.03, and 0.30 +/- 0.04 for the
pi+, pi-, and proton data, respectively. Total cross sections for chi1
and chi2 production of 131 +/- 18 +/- 14 and 188 +/- 30 +/- 21
nb/nucleon in the 300 GeV/c pi-N interactions have been obtained. By
measuring the contributions to the J/psi production due to both psi’ and
radiative chi decay, the cross sections for direct J/psi production have
been determined to be 97 +/- 14, 102 +/- 14, and 89 +/- 12 nb/nucleon
for pi+, pi-, and protons, respectively."
}