1 research outputs found
Pseudoscalar and Scalar Meson Photoproduction Interpreted by Regge Phenomenology
We have evaluated pseudoscalar and scalar neutral pion photoproduction in
and above the resonance
region and within Regge phenomenology. Our fit, including GlueX
pseudoscalar photoproduction data, shows that previous SLAC
measurements for above
are at variance with SLAC data with more recent measurements made by GlueX in
vicinity of . The Regge model predicts that the beam
polarization asymmetry of the scalar meson is opposite to that of
pseudoscalar meson photoproduction, however, the cross sections are similar.
While the vector natural parity meson exchange is dominant in both cases, the
contribution of the pseudovector unnatural parity meson exchange is very small.
Using Regge phenomenology, we predicted high energy behavior for double
polarized observables , , , and
for the reactions and .Comment: 8 pages, 5 figures, several small glitches were fixe