Reactive scattering calculations for 87Rb + 87RbHe → Rb2(3Σ$^{+}_{u}$,v) + He from ultralow to intermediate energies

Rodríguez-Cantano, Rocío; González-Lezana, Tomás; Prosmiti, Rita; Delgado-Barrio, Gerardo; Villarreal, Pablo; Jellinek, Julius

doi:10.1063/1.4919062

Title: Reactive scattering calculations for ⁸⁷Rb + ⁸⁷RbHe → Rb₂(³Σ$$^{+}_{u}$$,v) + He from ultralow to intermediate energies

Journal Article · Fri Apr 24 00:00:00 EDT 2015 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4919062· OSTI ID:1237678

Rodríguez-Cantano, Rocío ^[1]; González-Lezana, Tomás ^[1]; Prosmiti, Rita ^[1];

^[1];

^[1]; Jellinek, Julius ^[2]

Inst. de Física Fundamental, Madrid (Spain)
Argonne National Lab. (ANL), Argonne, IL (United States)

We investigate atom-diatom reactive collisions, as a preliminary step, in order to assess the possibility of forming Rb₂ molecules in their lowest triplet electronic state by cold collisions of rubidium atoms on the surface of helium nanodroplets. A simple model related to the well-known Rosen treatment of linear triatomic molecules in relative coordinates is used, allowing to estimate reactive probabilities for different values of the total angular momentum. The best available full dimensional potential energy surface is employed through the calculations. Noticeable values of the probabilities in the ultracold regime, which numerically fulfill the Wigner threshold law, support the feasibility of the process. Here, the rubidium dimer is mainly produced at high vibrational states, and the reactivity is more efficient for a bosonic helium partner than when the fermion species is considered.

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Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division

Grant/Contract Number:: AC02-06CH11357; FIS2011-29596-C02-01; JAE-Pre-2010-01277

OSTI ID:: 1237678

Alternate ID(s):: OSTI ID: 1228254

Journal Information:: Journal of Chemical Physics, Vol. 142, Issue 16; ISSN 0021-9606

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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N-2(+)((2)Sigma(g)) and Rb(S-2) in a hybrid trap: modeling ion losses from radiative association paths Gianturco, F. A.; Dorfler, A. D.; Willitsch, S. Royal Society of Chemistry https://doi.org/10.5451/unibas-ep74466	text	January 2019

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Title: Reactive scattering calculations for ⁸⁷Rb + ⁸⁷RbHe → Rb₂(³Σ$$^{+}_{u}$$,v) + He from ultralow to intermediate energies