Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-09-16
Physics
High Energy Physics
High Energy Physics - Phenomenology
MSc thesis, 54 pages, 15 figures
Scientific paper
In this work the production of vector mesons in diffractive DIS is analyzed, with an emphasis on the impact of the internal spin structure of a vector meson upon its virtual photoproduction rate. We derived the full sets of s-channel helicity conserving and violating amplitudes for pure S and D wave vector mesons and found a striking difference between S and D wave vector meson production. First, in the case of helicity conserving amplitudes, D wave vector mesons were found to exhibit dramatically different Q^2-behavior due to abnormally large higher twist contributions. Besides, we found that helicity conserving amplitudes for S and D states are numerically comparable, which makes the physical rho meson very sensitive to D wave admixture. Second, the helicity violating amplitudes turned out large both for S and D wave states of light vector mesons and for D wave heavy vector mesons as well. Aiming at producing sort of a manual on the diffractive vector meson production, we carried out all calculations in a pedagogical manner with maximally full presentation of intermediate steps and accompanied them with detailed qualitative discussion.
No associations
LandOfFree
Diffractive production of S and D wave vector mesons in DIS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Diffractive production of S and D wave vector mesons in DIS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diffractive production of S and D wave vector mesons in DIS will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-712436