Nataf, David2015-12-070035-8711http://hdl.handle.net/1885/25780We compare model predictions to observations of star counts in the red giant branch bump (RGBB) relative to the number density of first-ascent red giant branch at the magnitude of the RGBB, EWRGBB. The predictions are shown to exceed the data by (5.2 ± 4201410.1093/mnras/stu19742015-12-07