CERN experiments observe particle consistent with long-sought Higgs boson

Posted on July 4, 2012. Filed under: Technology | Tags: , |


At a seminar held at CERN today as a curtain raiserto the year’s major particle physics conference, ICHEP2012 inMelbourne, the ATLAS and CMS experiments presented their latest preliminary results in thesearch for the long sought Higgs particle. Both experiments observe a new particle inthe mass region around 125-126 GeV.


“We observe in our dataclear signs of a new particle, at the level of 5 sigma, in the mass regionaround 126 GeV. The outstanding performance of the LHC and ATLAS andthe huge efforts of many people have brought us to this exciting stage,” said ATLAS experiment spokesperson Fabiola Gianotti, “but a little moretime is needed to prepare these results for publication.”

“The results are preliminary but the 5 sigma signal at around 125 GeV we’re seeing is dramatic. This is indeed anew particle. We know it must be a boson and it’s the heaviest boson everfound,” said CMS experiment spokesperson Joe Incandela. “The implications are very significant and it is precisely for this reason that we must be extremely diligent in all of our studies and cross-checks.”

“It’s hard not to get excited by these results,” said CERN Research Director Sergio Bertolucci. “We stated last year that in 2012 wewould either find a new Higgs-like particle or exclude the existence of the Standard Model Higgs. With all the necessary caution, it looks to me that we are at a branching point: the observation of this new particle indicates the path for the future towards a more detailed understanding of what we’re seeing in the data.”

The results presented today are labelled preliminary. They are based on data collected in 2011 and 2012, with the 2012 data still under analysis. Publication of the analysis shown todayis expected around the end of July. A more complete picture of today’s observations willemerge later this year after the LHC provides the experiments with more data.

The next step will be to determine the precise nature of the particle andits significance for our understanding of the universe. Are its properties as expected for the long-sought Higgs boson, the final missing ingredient in the Standard Model of particle physics? Or is it something more exotic? The Standard Model describes the fundamental particles from which we, and every visible thing in theuniverse are made, and the forces acting between them. All the matter that we can see, however, appears to be no more than about 4 percent of the total. A more exotic version of the Higgs particle could be a bridge to understanding the 96% ofthe universe that remains obscure.

“We have reached a milestone in our understanding of nature,” said CERN Director General Rolf Heuer. “The discovery ofa particle consistent with the Higgs boson opens the way to more detailed studies, requiring larger statistics, which will pin down the new particle’s properties, and is likely to shed light on other mysteries of our universe.”

Positive identification of the new particle’s characteristics will take considerable time and data. But whatever form the Higgs particle takes, our knowledge of the fundamental structure of matter is about to take a major step forward.

Advertisements

Make a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

One Response to “CERN experiments observe particle consistent with long-sought Higgs boson”

RSS Feed for TechKnow Comments RSS Feed

I have read some good stuff here. Definitely worth bookmarking for revisiting. I surprise how so much attempt you set to create such a wonderful informative web site.


Where's The Comment Form?

    About

    Hot Technology News, New Mobile Releases, Gadget Updates, App Reviews & Much More!!

    RSS

    Subscribe Via RSS

    • Subscribe with Bloglines
    • Add your feed to Newsburst from CNET News.com
    • Subscribe in Google Reader
    • Add to My Yahoo!
    • Subscribe in NewsGator Online
    • The latest comments to all posts in RSS

    Meta

Liked it here?
Why not try sites on the blogroll...

%d bloggers like this: