Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Eikonal amplitudes and non-global logarithms from the BMS equation   The Banfi-Marchesini-Smye (BMS) equation accounts for non-global logarithms
to all orders in perturbation theory in the large-Nc approximation. We show
that the squared amplitudes for the emission of soft energy-ordered gluons are
correctly embedded in this equation, and explicitly verify that they coincide
with those derived in our previous work in the large-Nc limit up to sixth order
in the strong coupling. We perform analytical calculations for the non-global
logarithms up to fourth order for the specific hemisphere mass distribution in
e+ e- collisions, thus confirming our previous semi-numerical results. We show
that the solution to the BMS equation may be cast into a product of an infinite
number of exponentials each of which resums a class of Feynman diagrams that
manifest a symmetry pattern, and explicitly carry out the computation of the
first of these exponentials.

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The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
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The categories of this paper are: math
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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: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: astro-ph
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The categories of this paper are: solv-int