Περίληψη:
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.
Συγγραφείς:
ANTONIAZZI, L
ARENTON, M
CAO, Z
CHEN, T
CONETTI, S and
COX, B
DELCHAMPS, S
FORTNEY, L
GUFFEY, K
HAIRE, M and
IAONNOU, P
JENKINS, CM
JUDD, DJ
KOURKOUMELIS, C and
MANOUSAKISKATSIKAKIS, A
KUZMINSKI, J
LECOMPTE, T
MARCHIONNI,
A
HE, M
MAZUR, PO
MURPHY, CT
PRAMANTIOTIS, P and
RAMEIKA, R
RESVANIS, LK
ROSATI, M
ROSEN, J
SHEN, C and
SHEN, Q
SIMARD, A
SMITH, RP
SPIEGEL, L
STAIRS, DG and
TAN, Y
TESAREK, RJ
TURKINGTON, T
TURNBULL, L
TURKOT, F
and TZAMARIAS, S
VOULGARIS, G
WAGONER, DE
WANG, C
YANG,
W
YAO, N
ZHANG, N
ZHANG, X
ZIOULAS, G
ZOU, B
