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How to tell a Higgs from another boson?

Both the CMS and ATLAS experiments have been conducting several checks since July:

1) Are all possible decay modes predicted by the Standard Model observed?

2) Is each observed decay happening at the right rate?

3) What are the fundamental properties of the new boson?

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The ATLAS and CMS experiments at CERN today published observations of a new particle in the search for the Higgs boson in the journal Physics Letters B.

The papers: "Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC" and "Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC" are freely available online on ScienceDirect. 

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After the Higgs: The new particle landscape

Is the particle a Higgs boson of maximum simplicity, as predicted by the 40-year-old standard model of particle physics? Or is it something more complex and interesting that will point towards a deeper, more complete theory?
Physicists hope and expect that the LHC will give them some answers over the next few years. But they are already honing their sales pitches for a machine to follow the LHC - a 'Higgs factory' that would illuminate such a theory with measurements far more precise than the LHC can provide.

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Higgs boson results from LHC 'get even stronger'

The Higgs boson-like particle whose discovery was announced on 4 July looks significantly more certain to exist.
The particle has been the subject of a decades-long hunt as the last missing piece of physics' Standard Model, explaining why matter has mass.
Now Higgs-hunting teams at the Large Hadron Collider report more than "5.8 sigma" levels of certainty it exists.

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Title: Higgs Couplings after the Discovery
Authors: Tilman Plehn, Michael Rauch

Following the ATLAS and CMS analyses presented around ICHEP 2012 we determine the individual Higgs couplings. The new data allow us to specifically test the effective coupling to photons. We find no significant deviation from the Standard Model in any of the Higgs couplings.

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B meson decay into a tau neutrino and a tau lepton (via a Higgs or W boson).

HIGGSDECAY.gif



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"If I were a betting man, I would bet that it is the Higgs. But we can't say that definitely yet. It is very much a smoking duck that walks and quacks like the Higgs. But we now have to open it up and look inside before we can say that it is indeed the Higgs" - Oliver Buchmueller, research team senior physicist at CERN

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Higgs boson
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 Science explained using sugar and ping-pong balls

The BBC's Jonathan Amos attempted to explain Higgs boson using ping-pong balls, a bag of sugar and a tea tray.
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Latest update in the search for the Higgs boson

higgs5sigma.gif

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Mounting evidence that the Higgs boson exists is a "triumph" for particle physics and could help answer other questions about the Universe, according to a Durham University expert.
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