[G12] p K+ K- exclusive events

Lei Guo lguo at jlab.org
Mon Jul 23 16:38:04 EDT 2012


Hi, Mukesh,

Your moments stuff are very very  interesting. Have you looked at  
moments for simulation, assuming you have simulated events with M(K 
+K-) between 1 and 2 GeV?

On you dalitz plots, the y axis is M(pK-), not M(pK+), right?

Lei
On Jul 22, 2012, at 2:24 AM, Saini, Mukesh wrote:

> Hi All,
>
> As per Tuesdays discussion -
>
> 1. Comparison of a Gaussian Fit, Breit-Wigner Fit and a Voigtian Fit  
> and counting the phi mesons in the peak with the background fit  
> extended over a larger mass range.
>
> With the Old MM:
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/Count_Phi_GLV.pdf
>
> With the New MM:
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/ 
> Count_Phi_GLV_v2.pdf
>
> The Difference between the MM Cuts for Selected Phi events  
> (Invariant Mass of K+K- between 1.010,1.030 GeV):
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/MM_Cuts_Compare.pdf
>
> 2. Plots of Masses, t, t-prime, Moments for K+K- with Various sets  
> of Cuts like:
>     a. Beam Energy 3.6 GeV and 4.4 GeV
>     b. Without Lambda_1
>     c. Without Lambda_2
>     d. Without phi meson
>     e. t-prime cuts
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/Plots_4.4GeV.pdf
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/Moments_4.4GeV.pdf
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/Plots_3.6GeV.pdf
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/Moments_3.6GeV.pdf
>
> 3. Dalitz Plot for K+ K- vs proton K- with the same cuts listed above:
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/Dalitz_4.4GeV.pdf
> http://hadron.physics.fsu.edu/~mukesh/files/pKKExc/Dalitz_3.6GeV.pdf
>
> We will discuss these Tuesday but since I am always short those 2  
> important plots, Please let me know what they are.
>
> Mukesh.
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