UE handover source code

[Bob]

I'm trying to locate the code where the UE tries to connect to a new eNB once TriggerHandover is invoked (there must be a UE state machine somewhere). 

I've looked into lte-handover-management-sap but it's probably not there. 

Does anyone know where I should look at?

Thanks,

[Bob]

my question is unclear. I will make another post shortly.