Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Threshold fragmentation under dipole forces   The threshold law for N-body fragmentation under dipole forces is formulated.
It emerges from the energy dependence of the normalization of the correlated
continuum wave function for N fragments. It is shown that the dipole threshold
law plays a key role in understanding all threshold fragmentation phenomena
since it links the classical threshold law for long-range Coulomb interactions
to the statistical law for short-range interactions. Furthermore, a tunnelling
mechanism is identified as the common feature which occurs for all three
classes of interactions, short-range, dipole and Coulomb.

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The categories of this paper are: hep-th
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: math
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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph