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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hi all,<br>
<br>
I have updated and uploaded the pdf we saw earlier to include the Partial Wave decomposition from the E852 eta pi paper for 2 pseudoscalr mesons.<br>
<br>
Find it at:<br>
http://clasweb.jlab.org/rungroups/g12/wiki/images/c/c4/Phi_moments_comp.pdf<br>
<br>
At the top of each page you can now see the particular moments expanded in terms of their Partial Waves contributions.
<br>
<br>
Note:<br>
1. If we look at the H20 and H22 Moments (page 2) we can make a few observations. The H20 moment distribution for P0 wave is positive and for the P- and P+ wave, the distribution is negative - As one would expect from the H20 formula stated above the page.
This along with the H22 GMC moments, where P- distribution is +ve whereas P+ distribution is -ve, implies that the procedure followed for generating P0, P-, P+ Waves and calculating Moments is consistent with the physics distributions expected.
<br>
<br>
When we compare the data's H20 moment distribution to the Accepted moments, we observe that P0 wave contribution to the g12 phi meson data is significant.
<br>
<br>
2. Strong H21 moment distribution in the phi region for H21 data moment implies the interference for -ve reflectivity waves in g12 data.
<br>
<br>
3. From the interfering Moments terms like (H11 for P0 wave, H31 and H32 for all waves), We can observe that even when a moment is absent in the generated data, CLAS acceptance can create an illusion of the presence of certain waves (P0,P+,P- in H40,H41,H42)
where there should be none. <br>
<br>
Let me know if you have questions or suggestions,<br>
Mukesh.<br>
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