The possible discovery of the Higgs boson would not have been
splashed across every major media if the tag "God particle" weren't
attached to it. Physicists hate the term, but they love the publicity.
There are huge government grants at stake as well as the prestige of the
Large Hadron Collider at CERN in Switzerland. After you read the
headline, however, there's little doubt that a general reader cannot
actually grasp what a Higgs boson is (or a large hadron accelerator,
either).
If you watch enough PBS programs and listen to a few physicists, some
clarity emerges that a non-physicist can understand. The Higgs boson
discovery adds validation to a mathematical model of force fields in the
universe. It attaches a real particle to an expectation, the
expectation that buried inside force fields was the key to why subatomic
particles have mass. Mass would be acquired as a particle meets with
resistance when it moves through the vacuum of space, a kind of
"molasses" that slows it down.
This molasses is very elusive. It took many billions of colliding
protons in the huge CERN accelerator, backed up by 100,000 computers
around the world, to analyze the data before the discovery seemed real.
Even then, most physicists are guarded about whether this new particle
actually is a Higgs boson. They are equally guarded about whether its
properties will uphold the Standard Model of force fields or in fact
create more problems.
But behind all the hoopla and uncertainty, the news flew around the
world that a basic building block of the universe has been uncovered,
bringing quantum physics closer to its triumphant goal of explaining
creation -- hence the inflated and rather silly label of God particle.
Yet from another perspective, nothing like an explanation of the
universe is emerging at all. Physics may be getting closer to the day,
in fact, when the way it views the universe classically reaches a dead
end.
Here we will refer to some technical matters, but stick with us. The
preliminary discovery comes as a culmination of many years of both
theoretical and experimental work, since 1964 when the British physicist
Peter Higgs, along with Robert Brout, François Englert, Gerald
Guralnik, C. R. Hagen, and Tom Kibble, hypothesized the existence of a
field, filling all vacuum. They used symmetry breaking (which would
allow particles to acquire their masses without violating other aspects
of theory that were correct). This ubiquitous Higgs field would allow
all particles in the universe to acquire mass through interactions with
it, through a kind of dragging as they move in space. High energy proton
collisions at the LHC should, in principle, reveal the elusive Higgs.
The Higgs, unlike the photon, has a mass, expected to be in the
approximate range of 125 (or more) times the mass of the proton.
The Higgs boson is the last, missing link in the highly successful
quantum theory of particles, called the Standard Model. It is also
highly unstable, very elusive. To detect it, one has to observe many,
many high energy collisions of protons and build up the statistics. In
the LHC collider, particles are accelerated through a tunnel, brought
together at speeds close to the speed of light, producing showers of
particles, with high energies, capable to generate the Higgs particle.
It exists for only a tiny fraction of a second before breaking up into
many other particles and can be detected only indirectly by identifying
the results of its immediate decay and analyzing them to show they were
probably produced from a Higgs boson.
Even in its lowest energy state, the Higgs field filling all vacuum
has non-zero values everywhere. In fact, ripples or waves in the quantum
Higgs field, create for fleeting moments the Higgs particles. The Higgs
boson is itself very massive, and it must interact with itself. It
itself mediates interactions with the Higgs field and is itself an
excitation of the Higgs field.
The full properties of the Higgs (or whatever was observed by the
teams) are not yet known. In fact, the signature of what they observed
may be multiple Higgs bosons with the properties required by the next
theory that the Standard Model would extend into supersymmetry.
Particle physicists are not the only ones excited by the prospect of
finding the missing link in the theory: Cosmologists seem to agree that
all the luminous matter in the universe makes up only 4 percent of
whatever there is in the universe. All the hundreds of billions of
galaxies composed of many billions of stars make up just 4 percent of
everything! The rest of it may be in the form of dark matter and even
more exotic (but unknown) dark energy. So if the "Higgs-like" particle
discovered at CERN turns out to be more exotic form, it could help us
understand at least dark energy.
These possible future developments could get us closer to what
particle physicists call the Theory of Everything, a rather
particle-centered view of the cosmos, because their theory of
everything, as envisaged, says nothing and in fact cannot say anything
about life, evolution and the phenomena of mind and awareness. It is not
even clear how gravity, the last of the four forces of nature, will fit
into Standard Model, developing into supersymmetry and perhaps
developing into superstring theory. But it would be a start.
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