Tuesday, September 25, 2012

1209.5268 (S. Y. Choi et al.)

Theoretical Basis of Higgs-Spin Analysis in $H \to γγ$ and
$Zγ$ Decays
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S. Y. Choi, M. M. Muhlleitner, P. M. Zerwas
We chart the theoretical basis of radiative Higgs decays $H \to \gamma\gamma$ and $Z\gamma$ for measuring the spin of the Higgs particle. These decay channels are complementary to other rare modes such as real/virtual $Z$-boson pair-decays. In systematic helicity analyses the angular distribution for zero-spin is confronted with hypothetical spin-$2^\pm$ and higher assignments to quantify the sensitivity.
View original: http://arxiv.org/abs/1209.5268

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