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arXiv · 1607.01936

Cracking Down on Fake Photons - A Case of 750 GeV Diphoton Resonance -

Hajime Fukuda·Masahiro Ibe·Osamu Jinnouchi·Mihoko Nojiri
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Abstract

Among various models to explain the $750$ GeV diphoton resonance hinted at the LHC Run 2, a class of models where the resonance decays not into a pair of photons but into a pair of photon-jets is gathering definite attention. In this paper, we study how well we can distinguish the di-photon-jet resonance from the diphoton resonance by examining detector responses to the photon-jets. We find that the sum of $p_T$ of the first $e^+e^-$ pair from the photon conversion provides strong discrimination power. We also discuss determination of the lifetime of the light intermediate particle by measuring the photon conversion points.

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Hajime Fukuda, Masahiro Ibe, Osamu Jinnouchi, Mihoko Nojiri. 2016-07-07. Cracking Down on Fake Photons - A Case of 750 GeV Diphoton Resonance -. https://doi.org/10.1093/ptep/ptx019

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