GENEVA: Scientists at Europe's CERN research centre
have found a new subatomic particle that could be the Higgs boson, the basic
building block of the universe.
"We have indeed discovered a particle
consistent with the Higgs boson," John Womersley, head of a British public
research body, told journalists and scientists in London on
Wednesday.
"These results mark a significant breakthrough in our
understanding of the fundamental laws that govern the universe."
Joe
Incandela, spokesman for one of the two teams hunting for the Higgs particle
told an audience at CERN near Geneva: "This is a preliminary result, but we
think it's very strong and very solid."
CERN's director general Rolph
Heuer said: "As a layman, I would say I think we have it."
Addressing the
scientists assembled in the CERN auditorium, Heuer asked: "Would you agree?"
They burst into applause.
Peter Higgs, the
83-year-old British physicist who proposed the existence of the Higgs boson in
the 1960s, was at CERN to welcome the news. Clearly overwhelmed, his eyes
brimming, he told the symposium: "It is an incredible thing that it has happened in
my lifetime."
Universal theory
The Higgs theory
explains how particles clumped together to form stars, planets and life
itself.
Without the Higgs particle, the particles that make up the
universe would have remained like a soup, the theory goes.
It is the last
undiscovered piece of the Standard Model that describes the fundamental make-up
of the universe. The model is for physicists what the theory of evolution is for
biologists.
What scientists do not yet know from the latest findings is
whether the particle they have discovered is the Higgs boson as described by the
Standard Model. It could also be a variant of the Higgs idea or an entirely new
subatomic particle that could force a rethink on the fundamental structure of
matter.
The last two possibilities are, in scientific terms, the most
exciting.
Packed audiences of particle physicists, journalists, students
and even politicians filled conference rooms in Geneva and London to hear the
announcement.
Despite the excitement, physicists cautioned that there was
still much to learn.
"We still much we don't know about particles - this
is only the beginning of a new journey. We have closed one chapter and opened
another," Peter Knight of Britain's Institute of Physics said.
Oliver
Buchmueller, a senior physicist on one of the research teams, told Reuters: "If
I were a betting man, I would bet that it is the Higgs.
"But we can't yet
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."
Higgs called it a great achievement for the
Large Hadron Collider, the 27-km (17-mile) long particle accelerator built in a
tunnel underneath the French-Swiss border where experiments to search for the
Higgs boson have taken place.
In a statement, he added: "I never expected
No comments:
Post a Comment