Elong-14-02-04

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G. Miller's New b1 Calculations

Reading through G. Miller's paper that includes new calculations of b1 based on 6-quark, hidden color contributions, I thought I'd add his Fig. 4 plots to our proposal plot to see if we could potentially differentiate between the curves. It should be noted that this is only the 6-quark part, and doesn't include the 1-pion exchange. Because of this, these plots shouldn't be trusted below x~0.2.

2014-02-04-gmiller fig4.png


Compared to Proposal

If I just add these to the plots we had on our proposal, it looks like:

2014-02-04-b16q proposal.png


W > 1.5 GeV

It looked like if we could squeeze another point out around 0.65, then there might be a chance to further constrain the model. However, this would require dropping our W cut from 1.85 to 1.50. The result would be:

2014-02-04-b16q w 15.png

Results

Finally, there's a lot going on in all of these plots. It we make the proposal W cut for the first 4 points, but lower it to add the 5th point, our ability to differentiate between the curves looks like:

2014-02-04-b16q clean.png

(Note that the projected points are still shown as if they're expected along the Kumano fit)

Clarified Results

2014-02-10-b16q R.png 2014-02-10-b16q m.png