Here's a fit to the eta mass. It's a Gaussian plus 5th degree polynomial. Mean ~ 537 MeV, Width ~ 33.5 MeV. -------------- next part -------------- A non-text attachment was scrubbed... Name: etafit.pdf Type: application/pdf Size: 16702 bytes Desc: not available URL: <https://mailman.jlab.org/pipermail/halld-cal/attachments/20150917/48af86cf/attachment.pdf>