Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1998-04-21
Phys.Rev.C58:2429-2449,1998
Physics
Nuclear Physics
Nuclear Theory
42 pages, REVTeX, epsfig.sty, amssymb.sty, 17 figures (25 eps files), revised version to appear in Phys. Rev. C
Scientific paper
10.1103/PhysRevC.58.2429
The polarization observables in phi meson photoproduction is studied to probe the strangeness content of the nucleon. In addition to the dominant diffractive production and the one-pion-exchange process, we take into account the direct knockout mechanism that arises from the possible hidden strangeness content of the nucleon. We find that some double polarization observables are very sensitive to the strangeness content of the proton because of the different spin structures of the amplitudes associated with different mechanisms. This suggests that such measurements could be very useful in probing the strangeness content in the proton. The orbitally excited quark-cluster configurations in the proton are included in the calculation and found to have little effect.
Morii Tosiyuki
Oh Yongseok
Titov Alexander I.
Yang Shin Nan
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