Measurement of the $s$-wave scattering length between metastable helium isotopes

S. Kannan, Y. S. Athreya, A. H. Abbas +3

We report the first experimental determination of the interspecies $s$-wave scattering length\,($a_{34}$) between the $2{}^3{S}_1(F=3/2,m_F=3/2)$ state of ${}^3$He${}^{\ast }$ and the $2\,^3…