roll over einstein, physics changed

8/12/2019 Roll Over Einstein, Physics Changed

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GENEVA (AP)A startling find at one of the world's foremost laboratories that a subatomic

particle seemed to move faster than the speed of light has scientists around the world

rethinking Albert Einstein and one of the foundations of physics.

Now they are planning to put the finding to further high-speed tests to see if a revolutionary shift

in explaining the workings of the universe is needed

or if the European scientists made amistake.

Researchers at CERN, the European Organization for Nuclear Research outside Geneva, who

announced the discovery Thursday are still somewhat surprised themselves and planned to detail

their findings on Friday.

If these results are confirmed, they won't change at all the way we live or the way the universe

behaves. After all, these particles have presumably been speed demons for billions of years. But the

finding will fundamentally change our understanding of how the world works, physicists said.

Only two labs elsewhere in the world can try to replicate the results. One is Fermilab outside

Chicago and the other is a Japanese lab put on hold by the March tsunami and earthquake.

Fermilab officials met Thursday about verifying the European study and said their particle beam is

already up and running. The only trouble is that their measuring systems aren't nearly as precise as

the Europeans' and won't be upgraded for a while, said Fermilab scientist Rob Plunkett.

"This thing is so important many of the normal scientific rivalries fall by the wayside," said

Plunkett, a spokesman for the Fermilab team's experiments. "Everybody is going to be looking at

every piece of information."

Plunkett said he is keeping an open mind on whether Einstein's theories need an update, but he

added: "It's dangerous to lay odds against Einstein. Einstein has been tested repeatedly over and

over again."

Going faster than light is something that is just not supposed to happen according to Einstein's

1905 special theory of relativitythe one made famous by the equation E equals mc2. The speed

of light186,282 miles per second (299,792 kilometers per second) has long been considered a

cosmic speed limit.

"We'd be thrilled if it's right because we love something that shakes the foundation of what we

believe," said famed Columbia University physicist Brian Greene. "That's what we live for."

The claim is being greeted with skepticism inside and outside the European lab.

"The feeling that most people have is this can't be right, this can't be real," said James Gillies, a

spokesman for CERN.

CERN provided the particle accelerator to send neutrinos on a breakneck 454-mile (730-kilometer)

trip underground from Geneva to Italy. France's National Institute for Nuclear and Particle Physics

Research collaborated with Italy's Ran Sass National Laboratory for the experiment, which has no

connection to the atomic-smashing Large Hadron Collider, which is also located at CERN.

Gillies told The Associated Press that the readings have so astounded researchers that "they are

inviting the broader physics community to look at what they've done and really scrutinize it in

great detail."


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That will be necessary, because Einstein's special relativity theory underlies "pretty much

everything in modern physics," said John Ellis, a theoretical physicist at CERN who was not

involved in the experiment. "It has worked perfectly up until now." And part of that theory is that

nothing is faster than the speed of light.

CERN reported that a neutrino beam fired from a particle accelerator near Geneva to a lab in Italytraveled 60 nanoseconds faster than the speed of light. Scientists calculated the margin of error at

just 10 nanoseconds, making the difference statistically significant.

Given the enormous implications of the find, they spent months checking and rechecking their

results to make sure there were no flaws in the experiment.

A team at Fermilab had similar faster-than-light results in 2007. But that experiment had such a

large margin of error that it undercut its scientific significance.

If anything is going to throw a cosmic twist into Einstein's theories, it's not surprising that it's the

strange particles known as neutrinos. These are odd slivers of an atom that have confounded

physicists for about 80 years.

The neutrino has almost no mass, it comes in three different "flavors," may have its own

antiparticle and even has been seen shifting from one flavor to another while shooting out from the

sun, said physicist Phillip Schewe, communications director at the Joint Quantum Institute in

Maryland.

Fermilab team spokeswoman Jenny Thomas, a physics professor at the University College of

London, said there must be a "more mundane explanation" for the European findings. She said

Fermilab's experience showed how hard it is to measure accurately the distance, time and angles

required for such a claim.

Nevertheless, the Fermilab team, which shoots neutrinos from Chicago to Minnesota, will go back

to work immediately to try to verify or knock down the new findings, Thomas said.

Drew Baden, chairman of the physics department at the University of Maryland, said it is far more

likely that there are measurement errors or some kind of fluke. Tracking neutrinos is very difficult,

he said.

"This is ridiculous what they're putting out," Baden said. "Until this is verified by another group,

it's flying carpets. It's cool, but..."

So if the neutrinos are pulling this fast one on Einstein, how can it happen?

Stephen Parke, head theoretician at the Fermilab, said there could be a cosmic shortcut through

another dimensionphysics theory is full of unseen dimensionsthat allows the neutrinos to

beat the speed of light.

Indiana University theoretical physicist Alan Kostelecky says there may be situations when the

background is different in the universe, not perfectly symmetrical as Einstein says. Those changes

in background may change both the speed of light and the speed of neutrinos.

But that doesn't mean Einstein's theory is ready for the trash heap, he said.

"I don't think you're going to ever kill Einstein's theory. You can't. It works," Kostelecky said,adding there are just times when an additional explanation is needed.


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If the European findings are correct, "this would change the idea of how the universe is put

together," Columbia's Greene said.

But he added: "I would bet just about everything I hold dear that this won't hold up to scrutiny."

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