Candidates for Laser Cooling of Atomic Anions: La- versus Os-
نویسندگان
چکیده
This brief report is a followup to the recent proposal of using La− as another candidate, in addition to Os−, in laser cooling of anions, which can then be used to cool sympathetically antiprotons. Using the relativistic configuration interaction (RCI) formalism, we calculate the photodetachment cross sections of the upper laser cooling state La− 5d6s6p D1 and Os− 5d6s6p D9/2. Our results show La− has a very similar two-photon detachment loss as Os−, retaining it as another promising candidate for sympathetically cooling antiprotons.
منابع مشابه
High-resolution optical spectroscopy of Os−with a view to laser cooling of atomic anions
Atomic anions are generally not amenable to optical spectroscopy because they are loosely bound systems and rarely have bound excited states. Until recently, there was only one known negative ion with a strong bound–bound electronic transition, the osmium anion Os−. The electric-dipole transition between the F9/2 ground and DJ excited state of this ion provides unique insight into the structure...
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