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The AstronomersCMS
Videos with tag CMS
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08:00
08:00
08:00

Best of Higgs Field Theory physicists

Soundbytes from the interviews to Peter Higgs, Francois Englert, Carl Hagen and Gerald Guralnik, recorded at CERN on the announcement of the latest results from ATLAS and CMS on the Higgs boson searches. CERN Press release: CERN experiments observe particle consistent with long-sought Higgs boson http://cern.ch/press/PressReleases/Releases2012/PR17.12E.html

Channels: Major questions in astronomy 

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04:42
04:42
04:42

CERN Update: The Higgs Boson - Is it the God Particle?

http://facebook.com/ScienceReason ... CERN/LHC Update: "The Higgs Boson - Is it the God Particle?" CERN confirms existence of new particle consistent with Higgs boson. Is the Higgs boson the long-sought "God Particle"? And what do scientists think about the metaphor "The God Particle"? The ATLAS and CMS experiments at CERN presented their latest results in the search for the long-sought Higgs boson. Both experiments see strong indications for the presence of a new particle, which could be the Higgs boson, in the mass region around 126 gigaelectronvolts (GeV). --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/FFreeThinker • http://www.youtube.com/ScienceTV • http://www.youtube.com/Best0fScience • http://www.youtube.com/RationalHumanism --- CERN experiments observe particle consistent with long-sought Higgs boson "We now have more than double the data we had last year," said CERN Director for Research and Computing, Sergio Bertolucci, "that should be enough to see whether the trends we were seeing in the 2011 data are still there, or whether they've gone away. It's a very exciting time." If and when a new particle is discovered, ATLAS and CMS will need time to ascertain whether it is the long sought Higgs boson, the last missing ingredient of the Standard Model of particle physics, or whether it is a more exotic form of the boson that could open the door to new physics. "It's a bit like spotting a familiar face from afar," said CERN Director General Rolf Heuer, "sometimes you need closer inspection to find out whether it's really your best friend, or actually your best friend's twin." The Standard Model gives an extraordinarily precise picture of the matter that makes up all the visible universe, and the forces that govern its behaviour, but there are good reasons to believe that this is not the end of the story. For example, we know from observation that the visible universe is just 4% of what seems to be out there. "It's hard not to get excited by these results," said CERN Research Director Sergio Bertolucci. " We stated last year that in 2012 we would 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." "We have reached a milestone in our understanding of nature," said CERN Director General Rolf Heuer. "The discovery of a 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. • http://press.web.cern.ch/press/PressReleases/Releases2012/PR17.12E.html --- Tags: "god particle" "higgs boson" "higgs particle" god particle higgs boson new higgs-like cern lhc cms atlas experiments physics standard model supersymmetry susy mass matter universe results videos .

Channels: Physics 

Added: 1811 days ago by Ordonomundi

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08:03
08:03
08:03

Historic Milestone: CERN Discovers Higgs-like Boson

http://facebook.com/ScienceReason ... New particle observed at LHC! CERN Physicists are sure they have found a boson particle -- but is it the long-sought Higgs boson of the Standard Model? The ATLAS and CMS experiments at CERN presented their latest results in the search for the long-sought Higgs boson. Both experiments see strong indications for the presence of a new particle, which could be the Higgs boson, in the mass region around 126 gigaelectronvolts (GeV). --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/FFreeThinker • http://www.youtube.com/ScienceTV • http://www.youtube.com/Best0fScience • http://www.youtube.com/RationalHumanism --- CERN experiments observe particle consistent with long-sought Higgs boson At a seminar and a press conference held at CERN on 4 July 2012 as a curtain raiser to the year's major particle physics conference, ICHEP2012 in Melbourne, the ATLAS and CMS experiments presented their latest preliminary results in the search for the long sought Higgs particle. Both experiments observe a new particle in the mass region around 125-126 GeV. "We observe in our data clear signs of a new particle, at the level of 5 sigma, in the mass region around 126 GeV. The outstanding performance of the LHC and ATLAS and the huge efforts of many people have brought us to this exciting stage," said ATLAS experiment spokesperson Fabiola Gianotti, "but a little more time 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 a new particle. We know it must be a boson and it's the heaviest boson ever found," 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 we would 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 analyses shown today is expected around the end of July. A more complete picture of today's observations will emerge 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 and its 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 the universe, are made, and the forces acting between them. All the matter that we can see, however, appears to be no more than about 4% of the total. A more exotic version of the Higgs particle could be a bridge to understanding the 96% of the universe that remains obscure. "We have reached a milestone in our understanding of nature," said CERN Director General Rolf Heuer. "The discovery of a 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. • http://press.web.cern.ch/press/PressReleases/Releases2012/PR17.12E.html --- CERN, the European Organization for Nuclear Research, is the world's leading laboratory for particle physics. It has its headquarters in Geneva. At present, its Member States are Austria, Belgium, Bulgaria, the Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Italy, the Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Romania is a candidate for accession. Israel and Serbia are Associate Members in the pre-stage to Membership. India, Japan, the Russian Federation, the United States of America, Turkey, the European Commission and UNESCO have Observer status. • http://cern.ch/ --- Tags: "higgs boson" "higgs particle" higgs boson new higgs-like particle "god particle" observed discovered found cern lhc cms atlas experiments physics standard model results mass matter universe videos lecture press conference july 2012 .

Channels: Physics 

Added: 1811 days ago by Ordonomundi

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06:49
06:49
06:49

CERN 'Higgs Boson' Announcement: We Have Observed A New Particle

In the video dated July 4 2012, Joe Incandela, a spokesman for Cern, announces that scientists "have observed a new particle". "We have quite strong evidence that there's something there. Its properties are still going to take us a little bit of time. "But we can see that it decays to two photons, for example, which tells us it's a boson, it's a particle with integer spin. And we know its mass is roughly 100 times the mass of the proton. And this is very significant. This is the most massive such particle that exists, if we confirm all of this, which I think we will," Mr Incandela, the CMS Spokesperson says. "And this is very, very significant. It's something that may, in the end, be one of the biggest observations of any new new phenomena in our field in the last 30 or 40 years, going way back to the discovery of quarks, for example," he adds. The origin of mass has been fiercely debated for decades **Credit to the UK Telegraph for the amazing video

Channels: Physics 

Added: 1811 days ago by Ordonomundi

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02:09:34
02:09:34
02:09:34

CERN Higgs Boson Discovery Seminar/Lecture

Director General of CERN, Rolf Heuer, and the head scientists from the ATLAS and CMS at CERN in Geneva gives a conference and lecture on the discovery of the Higgs Boson at a rest mass energy of 126.5 GeV at a 4.9 confidence level (the maximum limit being 5) . This confidence level, in experimental physics, constitutes a discovery with 98% probability of certainty, making it the first true discovery of the Higgs Boson in human history. The bump in the energy spectrum observed at 125GeV contained a bump known with 99.9997% certainty. Since the observed Higgs mass lies between 115--130 GeV, this rules out the minimal Standard Model Higgs expected at 141 GeV. This means that it is a Higgs-like Boson! The Higgs seen at 125.5 GeV is at 3.8 sigma confidence level for the 4-lepton channel, the so-called "Golden Channel" of 4-leptons, created by the Higgs decaying into 2 Z-Boson Intermediates and those decaying into 4-leptons, 2-leptons per Z-Boson. These Leptons are Muons, detected by the Compact Muon Solenoid (CMS) detector. The same channel leads to a 3.2 confidence level with the look elsewhere effect taken into account. The Z-boson and photon channel integrated gives 5 sigma, the highest level possible with no significant errors. The W-channel gives 1.5 sigma confidence channel, so it is definitely meeting the double blind trials of a "Well-behaved" Higgs. Its a good boson for a Higgs candidate, it does as the Higgs should. The discovery from the various decay channels detected, the Boson discovered was most likely a "New Boson" or at least a "Higgs-like" Boson at 125.3 +/- 0.6 GeV at 4.9 sigma confidence level. This makes it a significant scientific discovery. The minimalist models of the Standard Model predict that the Higgs mass ought to be at about 141 GeV. So a 125 GeV model is a problem, theoretically, and leads to many problems like an unstable vacuum at energies much lower than the Planck scale. The Physics obtained from this discovery will most likely be new physics that will help us understand electroweak symmetry breaking but it also seems more and more likely that we are beginning to observe the effects of Supersymmetry for the first time aswell. Supersymmetric models are our best bet in this situation for the Boson discovered, for which it behaves like the Higgs Boson should. The Boson Detected with the square root of its action being at 8TeV has a Lagrangian Density of about 5 femtobarns (5 x 10^-9 barns), since 1 barn = 100 femtometers^2 this means the Higgs cross-section is only 5 x 10^-43 meters squared. Experimentally however it is a great triumph and a powerful discovery, the data obtained from this event through rigorous experimental and computational techniques will be studied and scrutinized as normal but now we know where to go from here. The Boson is here to stay and the work is going to begin on mastering it. Considering that it was found in the last energy region searched, this last piece of the jigsaw is deservedly put in its rightful place. The full picture will change everything.

Channels: Physics 

Added: 1811 days ago by Ordonomundi

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03:27
03:27
03:27

What is a Higgs Boson?

Fermilab scientist Don Lincoln describes the nature of the Higgs boson. Several large experimental groups are hot on the trail of this elusive subatomic particle which is thought to explain the origins of particle mass

Channels: Physics 

Added: 1811 days ago by Ordonomundi

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11:22
11:22
11:22

Particle Hunt: 'Higgs boson discovery historical moment'

Scientists are hopeful they're closer to solving life's greatest mysteries after discovering what's known as the 'God particle' The European Center for Nuclear Research says it's the most anticipated find in a decade. RT talks to physicist Andrey Golutvin to explore the significance. RT LIVE http://rt.com/on-air Subscribe to RT! http://www.youtube.com/subscription_center?add_user=RussiaToday Like us on Facebook http://www.facebook.com/RTnews Follow us on Twitter http://twitter.com/RT_com Follow us on Google+ http://plus.google.com/b/102728491539958529040 RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 500 million YouTube views benchmark.

Channels: Physics 

Added: 1811 days ago by Ordonomundi

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03:31
03:31
03:31

Higgs Boson Mass Range Excluded By LHC

http://www.quicknuclearscience.webs.com/ The LHC has excluded the higgs boson's mass range between 141-476 GeV, also next year it will look at the lower end of the spectrum to hopefully find or exclude the higgs all together.

Channels: Physics 

Added: 1952 days ago by deek

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