@article{Jurgilas:2021:10.1103/PhysRevLett.126.153401,
author = {Jurgilas, S and Chakraborty, A and Rich, CJH and Caldwell, L and Williams, HJ and Fitch, NJ and Sauer, BE and Frye, MD and Hutson, JM and Tarbutt, MR},
doi = {10.1103/PhysRevLett.126.153401},
journal = {Physical Review Letters},
title = {Collisions between ultracold molecules and atoms in a magnetic trap},
url = {http://dx.doi.org/10.1103/PhysRevLett.126.153401},
volume = {126},
year = {2021}
}

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TY  - JOUR
AB  - We prepare mixtures of ultracold CaF molecules and Rb atoms in a magnetic trap and study theirinelastic collisions. When the atoms are prepared in the spin-stretched state and the molecules inthe spin-stretched component of the first rotationally excited state, they collide inelastically witha rate coefficient k2 = (6.6 ± 1.5) × 10−11 cm3/s at temperatures near 100 µK. We attribute thisto rotation-changing collisions. When the molecules are in the ground rotational state we see noinelastic loss and set an upper bound on the spin-relaxation rate coefficient of k2 < 5.8×10−12 cm3/swith 95% confidence. We compare these measurements to the results of a single-channel loss modelbased on quantum defect theory. The comparison suggests a short-range loss parameter close tounity for rotationally excited molecules, but below 0.04 for molecules in the rotational ground state.
AU  - Jurgilas,S
AU  - Chakraborty,A
AU  - Rich,CJH
AU  - Caldwell,L
AU  - Williams,HJ
AU  - Fitch,NJ
AU  - Sauer,BE
AU  - Frye,MD
AU  - Hutson,JM
AU  - Tarbutt,MR
DO  - 10.1103/PhysRevLett.126.153401
PY  - 2021///
SN  - 0031-9007
TI  - Collisions between ultracold molecules and atoms in a magnetic trap
T2  - Physical Review Letters
UR  - http://dx.doi.org/10.1103/PhysRevLett.126.153401
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000652828300001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.126.153401
UR  - http://hdl.handle.net/10044/1/111072
VL  - 126
ER  - 

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