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Repeat mass distributions including PWA #26

Closed bdrum closed 3 years ago

bdrum commented 4 years ago

Some time ago I already have got such distribution here

But it has incorrect numbers.

Repeat this results. This will be topic of the next presentation.

bdrum commented 4 years ago

In STAR work they get two possible combinations with four possible pairs and take combination with lightest pair because lightest pair rely with two pions subsytem.

How we can additionally check it? What about directions of pairs via SPDcuts?

What about the opposite case:

What if we take combination with the hardest pair?

bdrum commented 4 years ago

Combination with the hardest pair doesn't have a sense, but as we discussed with PVN in case of plot all possible pairs I should see rho clearly. Let's do that.

bdrum commented 4 years ago

There is a question about physics that discussed above: In case of lightest pair rely with two pions subsystem, rest pair correspond with rho and other combination doesn't have a sense but why in total pair plot we have better statistics (or it biased)?

bdrum commented 4 years ago

In the STAR work these pictures (especially left) may have answer to the question about strange events in 0.5GeV area

image

bdrum commented 3 years ago

Move to #29