Revisiting $HW\to \gamma \gamma \ell \nu$

Abstract

A new particle of mass around 125 GeV is known to have loop induced couplings to $gg$ and $\gamma \gamma$. More specific to the Higgs interpretation are tree level couplings to $W$ and $Z$. A small but clean signal of the Higgs coupling to $W$ arises from associated production of a Higgs, with $H\to \gamma \gamma$. We consider this signal in light of a large NLO enhancement of the irreducible background.

Comments: 7 pages, 3 figures, improved analysis