Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bose enhancement and the ridge   We point out that Bose enhancement in a hadronic wave function generically
leads to correlations between produced particles. We show explicitly, by
calculating the projectile density matrix in the Color Glass Condensate
approach to high-energy hadronic collisions, that the Bose enhancement of
gluons in the projectile leads to azimuthal collimation of long range rapidity
correlations of the produced particles, the so-called ridge correlations.

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The categories of this paper are: bayes-an
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The categories of this paper are: dg-ga
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: nlin
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The categories of this paper are: hep-th
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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: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: econ
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The categories of this paper are: adap-org
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The categories of this paper are: math
6
The categories of this paper are: astro-ph
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The categories of this paper are: supr-con