Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resummed Mass Distribution for Jets Initiated by Massive Quarks   We resum the invariant mass distribution of jets initiated by massive quarks
in next-to-leading logarithmic approximation and beyond in heuristic way. We
find that the inclusion of mass terms, in the N-moment space, results in the
universal factor delta_N(Q^2;m^2), taking into account dead-cone effects and
soft radiation characteristic of massive charges. This factor multiplies the
massless jet distribution function J_N(Q^2). The variable N is rescaled by the
mass correction parameter r = m^2/Q^2 << 1 with respect to the standard
massless case, being m the quark mass and Q the hard scale. The functions
A(alpha_S) and B(alpha_S), appear with a minus sign suppressing collinear
effects at large N, as expected. In the same region, soft radiation not
collinearly enhanced, characteristic of massive charges, makes its appearance
with the function D(alpha_S). Phenomenological applications, such as the
resummation of b --> c l nu decay spectra or the inclusion of beauty mass
effects in t --> b W decays, are briefly sketched.

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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-ex