Hi JH, Thanks for you comments! I think that the vertex cut removes these 'proton-like' counts for both positive and negative magnetic fields. Also, one should note that this contribution is quite small, but has a large visual impact when presented in a scatter plot as we did. One can also inspect the mass2, where we see that these counts give a m2 peak at ca. 0.5. Also, even had such counts not been removed by vertex requirements, most would have been removed by the 2 sigma TOF cut. Still, to be perfectly honest, I have not reinspected the positive data using the latest and greatest software and calibrations. I will try to do this in the next few days, but how far along I come depends on how well I can get along with the 'new and improved' brat... Best regards, Ian-------------------------------------------------------------------- | I.G. Bearden | | Niels Bohr Institute Tb 3 email: bearden@nbi.dk | | Blegdamsvej 17 phone: (+45) 35 32 53 23 | | København Ø FAX: (+45) 31 42 10 16 | | Danmark | ----------------------------------------------------------------------
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