Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High resolution probe of coherence in low-energy charge exchange
  collisions with oriented targets   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.

37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn