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arXiv · 1310.4380

Comparison of $H\to\ell\bar{\ell}\gamma$ and $H\to\gamma\,Z, Z\to\ell\bar{\ell}$ including the ATLAS cuts

Duane A. Dicus·Chung Kao·Wayne W. Repko
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Abstract

A precise comparison is made between the Dalitz decay $H\to\ell\bar{\ell}\gamma$ and the two body decay $H\to\gamma Z,Z\to\ell\bar{\ell}$ for electrons and for muons including experimental cuts appropriate for the ATLAS detector. The widths for these two processes differ by 8% for electrons and 3% for muons. Given that there remain QCD radiative corrections of this order that are not included, this suggests that the isolation of the Dalitz decay will be challenging.

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Duane A. Dicus, Chung Kao, Wayne W. Repko. 2013-10-16. Comparison of $H\to\ell\bar{\ell}\gamma$ and $H\to\gamma\,Z, Z\to\ell\bar{\ell}$ including the ATLAS cuts. https://doi.org/10.1103/physrevd.89.033013

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