4 papers
On a possible manifestation of f_1 trajectory in J/psi photoproduction
Dayeeta Roy, Toshiyuki Morii, and Alexander I. Titov
We analyze a possible manifestation of f_1-trajectory in elastic J/psi photoproduction at high energy and large momentum transfer. Inspite of the small contribution of f_1-trajecto…
Photoproduction of as a Test of Color-Octet Model
T. Morii, D. Roy, K. Sudoh
We have calculated the cross section of photoproduction at small- regions in polarized collisions for testing the color-octet model, which is based on NRQCD factor…
productions as a test of color-octet mechanism
T. Morii, D. Roy, K. Sudoh +3
To test the color-octet model of heavy quarkonium productions, we propose -productions at small- regions in polarized collisions for the forthcoming RHIC polarized ex…
Hard Processes with Spin-Dependent Parton Distributions
T. Yamanishi, T. Morii, D. Roy +2
To test a possible color-octet contribution of heavy quarkonium productions, we propose '-productions for small- regions, where the color-singlet ' state cannot be produ…