Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of pairing on one- and two-nucleon transfer below the Coulomb
  barrier: a time-dependent microscopic description   The effect of pairing correlation on transfer reaction below the Coulomb
barrier is investigated qualitatively and quantitatively using a simplified
version of the Time-Dependent Hartree-Fock + BCS approach. The effect of
particle number symmetry breaking on the description of reaction and dedicated
methods to extract one and two-nucleon transfer probabilities (P_{1n} and
P_{2n}) in a particle number symmetry breaking approach are discussed.
Influence of pairing is systematically investigated in the ^{40}Ca+
^{40,42,44,46,48,50}Ca reactions. A strong enhancement of the two-particle
transfer probabilities due to initial pairing correlations is observed. This
enhancement induces an increase of the ratio of probabilities P_{2n} /
(P_{1n})^2 compared to the case with no pairing. It is shown that this ratio
increases strongly as the center of mass energy decreases with a value that
could be larger than ten in the deep sub-barrier regime. An analysis of the
pair transfer sensitivity to the type of pairing interaction, namely surface,
mixed or volume, used in the theory is made. It is found that the pair transfer
is globally insensitive to the type of force and mainly depends on the pairing
interaction strength.

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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: cond-mat
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn