Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anomalous Lifetimes of Ultracold Complexes Decaying into a Single
  Channel: What's Taking So Long in There?   We investigate the lifetimes of complexes formed in ultracold molecule
collisions. Employing both transition-state-theory and an optical model
approach we examine processes that can extend the lifetime of complexes beyond
that predicted by Rice-Ramsperger-Kassel-Marcus theory. We focus on complexes
that possess only one open channel, and find that the extreme distribution of
widths for this case favors low decay rates. Thus decay from a complex into a
single energetically available channel can be anomalously slow, and moreover
nonexponential in time. We apply the theory to two systems of current
experimental interest, RbCs and NaRb, finding qualitatively that the empirical
time scales can be accounted for in the theory.

29
The categories of this paper are: funct-an
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an