Discovery of the Higgs Boson
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Aakash Bhowmick
Jul 5, 2012, 2:53:08 AM7/5/12
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CERN in a press conference yesterday released results of experiments carried out by the ATLAS and CMS experiments at the Large Hadron Collider performed during 2011. Physicists say the results are as good as 5-sigma, which simply means that the results are quite consistent to believe that there is a huge probability that the Higgs Boson, indeed, exists. Still, more analysis is required before any confirmation can be made.
I am personally not aware of the significance of this particle, but according to physicists, the particle will completely change our understanding of the universe and it's origin. [ What is the Higgs Boson ? ]
More and more information is being released by CERN.[ http://public.web.cern.ch/public/ and http://press.web.cern.ch/press/PressReleases/Releases2012/PR17.12E.html ] It would be great if members could keep up with the press-releases and keep posting on this thread the latest news that come. However, please rely only on official press-releases and not media-websites. This might be the greatest discovery by humankind that happens in your lifetime. :)
Aakash S. Bhowmick,
Undergraduate Student,
Indian Institute of Technology,
Kharagpur, W.B. - 721302.
I am personally not aware of the significance of this particle, but according to physicists, the particle will completely change our understanding of the universe and it's origin. [ What is the Higgs Boson ? ]
More and more information is being released by CERN.[ http://public.web.cern.ch/public/ and http://press.web.cern.ch/press/PressReleases/Releases2012/PR17.12E.html ] It would be great if members could keep up with the press-releases and keep posting on this thread the latest news that come. However, please rely only on official press-releases and not media-websites. This might be the greatest discovery by humankind that happens in your lifetime. :)
Aakash S. Bhowmick,
Undergraduate Student,
Indian Institute of Technology,
Kharagpur, W.B. - 721302.
Abhisek Datta
Jul 5, 2012, 3:51:39 AM7/5/12
to astro...@googlegroups.com
Interactions NewsWire #58-12
4 July 2012 http://www.interactions.org
******************************
4 July 2012 http://www.interactions.org
******************************
*************
Source: CERN
Content: Press Release
Date Issued: 4 July 2012
*******************************************
CERN experiments observe particle consistent with long-sought Higgs boson
Geneva, 4 July 2012. At a seminar held at CERN today 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.
Pictures available here:
http://cdsweb.cern.ch/search?cc=Press+Office+Photo+Selection&rg=100&of=hpm&p=internalnote%3A%22Higgs%22&sf=year&so=d
Footage available here:
http://cdsweb.cern.ch/search?cc=Press+Office+Video+Selection&rg=100&p=internalnote%3A%22Higgs%22&sf=year&so=d
Source: CERN
Content: Press Release
Date Issued: 4 July 2012
*******************************************
CERN experiments observe particle consistent with long-sought Higgs boson
Geneva, 4 July 2012. At a seminar held at CERN today 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.
Pictures available here:
http://cdsweb.cern.ch/search?cc=Press+Office+Photo+Selection&rg=100&of=hpm&p=internalnote%3A%22Higgs%22&sf=year&so=d
Footage available here:
http://cdsweb.cern.ch/search?cc=Press+Office+Video+Selection&rg=100&p=internalnote%3A%22Higgs%22&sf=year&so=d
Abhisek Datta
Undergraduate Student
Department of Physics and Meteorology
Undergraduate Student
Department of Physics and Meteorology
Mudit Sinhal
Jul 9, 2012, 12:24:08 AM7/9/12
to astro...@googlegroups.com
A bit of explanation of higgs boson. The concept of higgs boson was proposed in 1964 by peter higgs. Not going into much detail, it is believed that many other elementary particles get their masses when they interact with the higgs field . This was an idea proposed to suggest the beginning of the universe and how matter came into existence .(We know the wave particle duality . every field can be seen as a particle like light waves as photons and gravitational filed as graviton etc etc. In the similar way the lowest possible excitation of the higgs field if known as higgs boson). Because of this higgs boson are termed to be "GOD PARTICLE".
Anyways currently after a so-called successful finding of the higgs boson the LHC has been shut down for about 20 weeks for repair and upgradation. More million euros have been given to CERN for upgrading the LHC. After the repairs there will be studies on the higgs boson for the rest of the year. Scientist working there are also proposing to discover dark matter after the upgradation of LHC. Drk matter is some how said to be related to the higgs field(I do not know how) so they are hoping to create and see dark matter in real(believed to be occupying 86% of the entire universe). Lets see where they get . seems like a very successful year in the filed of physics ;).
Saurabh Kumar
Jul 9, 2012, 11:00:32 AM7/9/12
to astro...@googlegroups.com
On Mon, Jul 9, 2012 at 9:54 AM, Mudit Sinhal <mudit....@gmail.com> wrote:
> A bit of explanation of higgs boson. The concept of higgs boson was proposed
> in 1964 by peter higgs. Not going into much detail, it is believed that many
> other elementary particles get their masses when they interact with the
> higgs field . This was an idea proposed to suggest the beginning of the
> universe and how matter came into existence .(We know the wave particle
> duality . every field can be seen as a particle like light waves as photons
> and gravitational filed as graviton etc etc. In the similar way the lowest
> possible excitation of the higgs field if known as higgs boson). Because of
> this higgs boson are termed to be "GOD PARTICLE".
Matter comes into existence all the time as particle-antiparticle
> A bit of explanation of higgs boson. The concept of higgs boson was proposed
> in 1964 by peter higgs. Not going into much detail, it is believed that many
> other elementary particles get their masses when they interact with the
> higgs field . This was an idea proposed to suggest the beginning of the
> universe and how matter came into existence .(We know the wave particle
> duality . every field can be seen as a particle like light waves as photons
> and gravitational filed as graviton etc etc. In the similar way the lowest
> possible excitation of the higgs field if known as higgs boson). Because of
> this higgs boson are termed to be "GOD PARTICLE".
pairs(and not just at the beginning of the universe). This result just
explains why they have mass and doesn't address universe creation much
though Higgs interaction would have begun soon after the big bang.
The term "God particle" came because the a book author wanted to call
it the goddamn particle and the publisher wouldn't agree.
> Anyways currently after a so-called successful finding of the higgs boson
> the LHC has been shut down for about 20 weeks for repair and upgradation.
> More million euros have been given to CERN for upgrading the LHC. After the
> repairs there will be studies on the higgs boson for the rest of the year.
> Scientist working there are also proposing to discover dark matter after the
> upgradation of LHC. Drk matter is some how said to be related to the higgs
> field(I do not know how) so they are hoping to create and see dark matter in
> real(believed to be occupying 86% of the entire universe). Lets see where
> they get . seems like a very successful year in the filed of physics ;).
fields which makes it difficult to find what it exactly is composed
of. It is a perfectly fine default assumption that if it has
mass(which it does), they have acquired it through the same Higgs
interaction. It is fairly well established that it has ~23% of the
total mass-energy, and ~84% of matter.
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