Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Amplitude Zeros and Rapidity Correlations in $W\gamma$ and $WZ$
  Production in Hadronic Collisions   A comparative study of amplitude zeros in $W\gamma$ and $WZ$ production in
hadronic collisions is presented. The Standard Model amplitude for $q_1 \bar
q_2 \rightarrow W^\pm Z $ at the Born-level is shown to exhibit an approximate
zero located at $\cos\theta = (g^{q_1}_{-} + g^{q_2}_{-}) / (g^{q_1}_{-} -
g^{q_2}_{-})$ at high energies, where the $g^{q_i}_{-}$ ($i=1,2$) are the
left-handed couplings of the $Z$-boson to quarks and $\theta$ is the center of
mass scattering angle of the $W$-boson. This approximate zero is similar to the
well-known radiation zero in $W\gamma$ production. Prospects to observe the
amplitude zeros using rapidity correlations between the final state particles
are explored.

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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: math
4
The categories of this paper are: cond-mat
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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: acc-phys
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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th