Updates tagged: “diphoton”

Improving our understanding of photon pairs

High-energy photon pairs at the LHC are famous for two things. First, as a clean decay channel of the Higgs boson. Second, for triggering some lively discussions in the scientific community in late 2015, when a modest excess above Standard Model predictions was observed by the ATLAS and CMS collaborations.

Read more →

High-mass di-photon resonances: the first 2016 ATLAS results

One of the highlights of last year’s physics results was the appearance of an excess in the search for a new particle decaying into two photons ("the di-photon channel"). New results in this channel were presented at the ICHEP conference in Chicago on Friday, 5 August. 

Read more →

Di-photons in the spotlight

The ATLAS collaboration has now released the final results on the search for new physics in the di-photon channel using 2015 data.

Read more →

Bumps in the light

Here we are at the second blog from the Moriond QCD conference and, as promised, I will discuss a bit of physics.

Read more →

Searching beyond the Standard Model with photon pairs

The ATLAS Collaboration uses two selections in this search, one optimised for Higgs-like particles that are expected to have a strong signal compared to background with both photons in the central region of the detector (the “spin-0” selection) and a second optimised for graviton-like particles (the “spin-2” selection) which often have at least one photon close to the LHC proton beam axis. 

Read more →