The University of Southampton
University of Southampton Institutional Repository
 ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

# The 750 GeV threshold to a new particle world

Jain, Samarth, Margaroli, Fabrizio, Moretti, Stefano and Panizzi, Luca (2017) The 750 GeV threshold to a new particle world. Physical Review D, 95 (1), [014037].

Record type: Article

## Abstract

We show how an excess in the diphoton channel can be the effect of neither a resonance nor an end-point in a cascade decay, but rather of a threshold for virtual production of a pair of extra quarks, each with half of peak invariant mass, onsetting in both the $gg$-initiated production and the $\gamma\gamma$-induced decay of an off-shell $Z$ boson. For our analysis we consider as paradigmatic example the 750 GeV excess previously seen at the end of 2015 with the Run 2 data of the LHC but not confirmed with 2016 data.

Accepted/In Press date: 16 June 2016
e-pub ahead of print date: 31 January 2017
Published date: 31 January 2017
Additional Information: 6 pages, 5 figures, 2 tables, version accepted by PRD
Keywords: hep-ph
Organisations: Theory Group

## Identifiers

Local EPrints ID: 411791
URI: http://eprints.soton.ac.uk/id/eprint/411791
ISSN: 2470-0010
PURE UUID: 2025973e-2529-4cb4-a952-f3353ab53658

## Catalogue record

Date deposited: 26 Jun 2017 16:30

## Contributors

Author: Samarth Jain
Author: Fabrizio Margaroli
Author: Stefano Moretti
Author: Luca Panizzi