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Journal Articles Physical Review Letters Year : 2013

High resolution probe of coherence in low-energy charge exchange collisions with oriented targets

Abstract

The trapping lasers of a magneto-optical trap (MOT) are used to bring Rb atoms into well defined oriented states. Coupled to recoil-ion momentum spectroscopy (RIMS), this yields a unique MOTRIMS setup which is able to probe scattering dynamics, including their coherence features, with unprecedented resolution. This technique is applied to the low-energy charge exchange processes Na$^+$+Rb($5p_{\pm 1}$) $\rightarrow$ Na($3p,4s$)+Rb$^+$. The measurements reveal detailed features of the collisional interaction which are employed to improve the theoretical description. All of this enables to gauge the reliability of intuitive pictures predicting the most likely capture transitions.
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Dates and versions

in2p3-00835364 , version 1 (18-06-2013)

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A. Leredde, X. Fléchard, A. Cassimi, D. Hennecart, B. Pons. High resolution probe of coherence in low-energy charge exchange collisions with oriented targets. Physical Review Letters, 2013, 111, pp.133201. ⟨10.1103/PhysRevLett.111.133201⟩. ⟨in2p3-00835364⟩
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