Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: ZYAM and $\bf v_2$: Underestimating jet yields from dihadron azimuth
  correlations   Dihadron azimuth correlations can provide combinatoric access to jet
structure in nuclear collisions. To isolate true jet yields a background must
be subtracted, including a constant offset and a contribution from "elliptic
flow" (azimuth quadrupole measured by $v^2_2$). The principle of "zero yield at
minimum" (ZYAM) has been introduced to determine the constant offset.
Independent measurements determine $v_2^2$. This analysis demonstrates that the
ZYAM concept is invalid (offset typically overestimated) and $v_2^2$ is also
overestimated by conventional measurements. Jet yields are thus substantially
underestimated in more-central A-A collisions, and the "away-side" azimuth peak
(back-to-back jet correlations) is strongly distorted, leading to incorrect
inference of "Mach shocks."

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The categories of this paper are: mtrl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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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: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-ex