2 ms·

Here is the link to the theoretical paper: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.101301 http://journals.aps.org/prd/abstract/10.1103/PhysRevD

Here is the link to the theoretical paper: http://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.101301 http://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.101...