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dc.creatorHauser, A. W.en_US
dc.creatorAubock, G.en_US
dc.creatorCallegari, C.en_US
dc.creatorErnst, W. E.en_US
dc.date.accessioned2010-07-12T13:48:57Z
dc.date.available2010-07-12T13:48:57Z
dc.date.issued2010en_US
dc.identifier2010-WI-05en_US
dc.identifier.urihttp://hdl.handle.net/1811/46051
dc.descriptionAuthor Institution: Institute of Experimental Physics, Graz; University of Technology, Petersgasse 16, A-8010 Graz, Austriaen_US
dc.description.abstractWe compare the 3$^4$A$_1$ and 4$^4$B$_2$ states of homonuclear and heteronuclear alkali trimers formed of potassium and rubidium. The Multireference Rayleigh Schrodinger Perturbation Theory of second order is applied to obtain the corresponding adiabatic potential energy surfaces. In the case of homonuclear trimers these pairs of states correspond to the two branches of the E$\times{}$e Jahn-Teller distorted 2$^4$E$^{\prime}$ state. For heteronuclear trimers, the vibrational modes Q$_x$ and Q$_y$ are no longer degenerate, but the two electronic states still show a conical intersection at obtuse (KRb$_2$) or acute (K$_2$Rb) isosceles geometries. Spectroscopic consequences of this situation are discussed, vibronic spectra are predicted and compared to LIF spectra obtained in helium droplet isolation spectroscopy experiments of our group$^,$.en_US
dc.language.isoenen_US
dc.publisherOhio State Universityen_US
dc.titleACCIDENTAL CONICAL INTERSECTIONS IN MIXED TRIMERS OF POTASSIUM AND RUBIDIUM: A VIBRONIC ANALYSIS OF THE 4$^4$B$_2$ AND 3$^4$A$_1$ STATESen_US
dc.typeArticleen_US


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