In this July 4, 2012
photo Belgian physicist Francois Englert (left) and British physicist Peter
Higgs, answer journalist's questions at the European Organization for Nuclear
Research in Meyrin near Geneva. The duo were awarded the Nobel physics prize on
Tuesday.
Peter Higgs of Britain and Francois Englert of Belgium have
shared the 2013 Nobel Physics Prize for “the theoretical discovery of the
origin of mass of subatomic particles,” the Royal Swedish Academy of Sciences
says.
It added that the so-called boson theory was a central part of
the Standard Model of particle physics that describes how the universe is
constructed.
The theory was “recently confirmed through the discovery of the
predicted fundamental particle” by two teams working at the nuclear research
organisation, CERN, in Switzerland.
The Higgs boson
The Higgs boson is a particle that explains the existence of mass
and holds the key to understanding the universe.
Nicknamed the God particle, the Higgs boson was the missing piece
in the Standard Model of physics, which describes how atoms interact but could
not explain why they have mass.
The boson was part of a theory developed by Mr. Higgs and Mr.
Englert in the 1960s.
Experiments at CERN have shown that the boson is likely to
actually exist.
There are two groups of subatomic particles: The fermions, which
make up matter, and the bosons, which carry forces.
Much like splashing waves make us notice the ocean, Higgs bosons
are the sign that there is a so-called Higgs field.
When a particle passes through this field, it interacts and
acquires mass.
CERN chief Rolf Heuer has compared the Higgs field to a room full
of journalists. When a celebrity walks through the room, he will soon find
himself surrounded by reporters, who will slow down his steps.
The reporters would also interact with each other in clusters,
similar to the way in which Higgs bosons form, he said.
Physicists are not yet sure whether what they have found is the
Higgs boson. If it is, their discovery would validate the standard model.
If the newly discovered boson is slightly different from that
originally conceived by Higgs, this could help solve questions that cannot be
answered with the Standard Model.
For example, it could help explain dark matter, a form of
invisible matter that is believed to make up the most of the universe.
Keywords: Peter
Higgs, Francois
Englert, 2013
Physics Nobel, God
particle, Higgs
boson, CERN
No comments:
Post a Comment