Higgs search: A half-century odyssey

Oct 08, 2013 by Mariette Le Roux
British physicist Peter Higgs looking on during a press conference at the European Organization for Nuclear Research (CERN) offices in Meyrin near Geneva on July 4, 2012

Over half a century, the Higgs boson has evolved from a theory rejected as daft to a cornerstone of our understanding of the Universe.

Conceived in 1964 to explain how matter acquired mass, the notion required the labour of thousands of scientists and billions of dollars worth of specialised equipment to graduate from to reality.

On July 4, 2012, the European Organisation for Nuclear Research (CERN) announced it had discovered a particle commensurate with the elusive boson—a breakthrough crowned Tuesday with the Nobel Prize in Physics.

"I had no idea it would happen in my lifetime," 84-year-old British physicist and Nobel co-laureate Peter Higgs said last year of the needle-in-a-haystack discovery bearing his name.

The Standard Model of , the most widely-accepted theory of how the known Universe works, is incomplete without the Higgs boson.

The boson explains how the building-brick fundamental particles that make up all matter acquired mass. The Standard Model dictates that the particles in themselves are massless.

Higgs bosons are believed to exist in a molasses-like, invisible field created in the first fractions of a second after the "Big Bang" 13.7 billion years ago.

Each boson is thought to act rather like a fork dipped in syrup and held up in dusty air. While some dust slips through cleanly, most becomes sticky—effectively acquiring mass. With mass comes gravity, which pulls particles together even as the Higgs bosons themselves decay into other .

Graphic explanation of the role of the Higgs Boson particle
Graphic explanation of the role of the Higgs Boson particle

An enthralling and sometimes disheartening quest for the omnipresent but elusive particle started with the publication in 1964 of three papers that predicted its existence.

First to publish were Francois Englert and Robert Brout of the Free University of Brussels, followed by Higgs and then the US-British team of Dick Hagen, Gerald Guralnik and Tom Kibble.

Higgs' first paper on the boson was rejected by Physics Letters, a journal then edited by the CERN—a decision the physicist said "shocked" him at the time.

He revised the paper and submitted it to a different journal, Physical Review Letters, which published it—making Higgs the flag bearer of a premise that many scientists helped to develop over the years.

"There was a lot of scepticism about whether this weird kind of field theory was going to work," Higgs said in a presentation to Kings College London in 2010.

After an address to Harvard in 1966, Higgs recalled, he was told by a colleague "they had been looking forward to tearing apart this idiot"—referring to himself.

But by the early 1970s, when the Standard Model was refined, the boson theory had gained much traction.

"Certainly, we had to wait before the theory itself was applied to something which is the Standard Model, which took some time," fellow Nobel recipient Englert said Tuesday.

ULB emeritus professor Francois Englert gives a press conference after winning the 2013 Nobel Prize in Physics, on October 8, 2013 at the ULB Universite Libre de Bruxelles (Frenchspeaking Free University of Brussels), in Brussels

"It took some time to prove the consistency of our theory. Only after that could one look for a test."

Higgs has described the search as "a very difficult task" and said: "In the beginning, people had no idea of where to look for it."

By 1989, particle-smashing experiments started at the CERN's Large Electron–Positron Collider (LEP) near Geneva, searching in vain for clues of the Higgs' existence until it closed in 2000.

Exciting work was also carried out by the United States' own smasher at Fermilab in Illinois, which came agonisingly close to spotting the particle, but didn't have the raw colliding power to get the results.

The LEP was replaced by the Large Hadron Collider which started in 2008 and finally yielded the putative last year—"the final piece in the puzzle that is the Standard Model", according to Olga Botner, a member of the Nobel Committee for Physics.

"It has been a long journey but one that has inspired a generation to engage with the subject," said the president of Britain's Institute of Physics, Frances Saunders.

Explore further: From ancient Greece to Nobel prize: a Higgs timeline

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Adam__Smith
3 / 5 (4) Oct 08, 2013
The non-technical explanation that the Higgs gives other particles mass by allowing them to become "sticky" is much better than anything I have yet seen in general media. I immediately understand that what a massive particle "sticks" to is an inertial frame of reference from which it cannot be moved except by the application of force. Massless particles are so not stuck to an inertial reference frame that they automatically move at the speed of light not just with respect to A reference frame but with respect to ALL of them. It really makes wonderful sense. It even makes sense that the stickiness of mass tugs on spacetime, causing it to pucker, which produces gravity. Thank you.
vidyunmaya
1 / 5 (9) Oct 09, 2013
Sub; cosmological Wisdom
Plasma occupies the shape of the body . One can see Van-Allen Belts - in three mode spread.
The matter is not merging with anti-matter but rather looks towards the Cosmic function of the Universe. Within the Universe, One can see Super state beyond the Galactic Frame. if Cosmic Plasma is viewed as drive around- then Plasma regulated Electromagnetic Phenomena in Magnetic Field Environment - become very clear. The dimensional nature of Space Cosmology studies must aim to define- CAUSE-Effect relationship that aim for prime functional index. otherwise it is stale Philosophy.
The subject of Space Cosmology Vedas interlinks provides an opportunity to best of brains trust- identify stable modes for East West Interaction-Cosmological Index and Cosmology World Peace are intertwined. vidyardhi Nanduri
Nanowill
1 / 5 (9) Oct 10, 2013
Silly Hoop-la. The Higgs as "a corner stone to understanding the Universe" is complete nonsense, and it has nothing to do with mass. I know I'm at odds with most of the community on this but can prove it if anyone cares to listen. Time will prove me right.

The Higgs is not important except to raise funds, its probably a resonance at 1/alpha the proton mass.
Q-Star
2.3 / 5 (3) Oct 15, 2013
The Higgs Fake: Alexander Unzicker Uber Crank


Zeph, what's this trash?

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