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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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Submitted on : Tuesday, June 18, 2013 - 2:53:21 PM
Last modification on : Tuesday, February 19, 2019 - 9:58:02 AM
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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, American Physical Society, 2013, 111, pp.133201. ⟨10.1103/PhysRevLett.111.133201⟩. ⟨in2p3-00835364⟩

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