Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-Body Interactions of D-Particles in Supergravity and Matrix Theory   We present detailed analyses of the 3-body interactions of D-particles from
both sides of 11 dimensional supergravity and Matrix theory. In supergravity,
we derive a complete expression for the classical bosonic effective action for
D-particles including 2-and 3-body interaction terms. In Matrix theory, we
compute 1-particle irreducible contributions to the eikonal phase shift in the
two-loop approximation. The results precisely agree with the predictions from
supergravity and thus provide a strong support to the discrete light-cone
interpretation of the Matrix-theory conjecture as a possible nonperturbative
definition of M-theory.

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The categories of this paper are: physics
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin