Can a Pomeron be really "supersoft"

Citation
D. Roy et al., Can a Pomeron be really "supersoft", CZEC J PHYS, 50, 2000, pp. 131-136
Citations number
28
Categorie Soggetti
Physics
Journal title
CZECHOSLOVAK JOURNAL OF PHYSICS
ISSN journal
00114626 → ACNP
Volume
50
Year of publication
2000
Part
1
Supplement
1
Pages
131 - 136
Database
ISI
SICI code
0011-4626(2000)50:<131:CAPBR">2.0.ZU;2-I
Abstract
The low energy J/psi photoproduction cross-section has been studied on the basis of the Pomeron model. To incorporate the discrepancy between experime ntal data and predictions by conventional models, i.e. the sum of the soft Pomeron with intercept 1.08 and the hard Pomeron with intercept 1.418, a Re gge trajectory associated with a scalar meson (f, a) exchange which we call "supersoft" Pomeron, is introduced additionally. To distinguish between th e conventional model and this new additional Pomeron, observations related to other polarization observables in upcoming polarized experiments are dis cussed.