We discuss two production mechanisms of the J(PC) = 1(-+) exotic meson, had
roproduction, using pion beams and photoproduction. We show that the ratio
of exotic to nonexotic, in particular the a(2) meson-production cross secti
ons is expected to be by a factor of 5 to 10 larger, in photoproduction the
n in hadroproduction. Furthermore we show that the low-t photoproduction of
exotic meson is enhanced as compared to hadronic production. This findings
support the simple quark picture in which exotic meson production is predi
cted to be enhanced when the beam is a virtual Q (Q) over bar pair with a s
pin-1 (photon) rather then with a spin-0 (pion). (C) 2001 Published by Else
vier Science B.V.