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Scientists looking for invisible dim matter can’t find any

Associated Press

WASHINGTON — Scientists have come adult empty-handed in their latest bid to find fugitive dim matter, a abundant things that helps galaxies like ours form.

For 3 years, scientists have been looking for dim matter — that yet invisible, creates adult some-more than four-fifths of a universe’s matter — scarcely a mile subterraneous in a former bullion cave in Lead, South Dakota. But on Thursday they announced during a discussion in England that they didn’t find what they were acid for, notwithstanding supportive apparatus that exceeded technological goals in a plan that cost $10 million to build.

“We’re arrange of unapproachable that it worked so good and also unhappy that we didn’t see anything,” pronounced University of California, Berkeley physicist Daniel McKinsey, one of dual systematic spokesmen for a mostly government-funded project.

The cave project, called Large Underground Xenon examination or LUX, was one of 3 places looking for dim matter. Another is on a International Space Station and a third is an bid to emanate dim matter during a Large Hadron Collider, run by a European consortium that found a Higgs Boson particle.

At a South Dakota site, some-more than 4,800 feet of earth helped shade out credentials radiation. Scientists used a vast vat of glass xenon that they hoped would furnish a peep of light when wrongly interacting large particles, or WIMPS, bounced off a super-cooled liquid.

Not anticipating WIMPS might expostulate physicists to consider about new possibilities for dim matter, even yet WIMPS are still a many viable option, pronounced Neal Weiner, executive of a Center for Cosmology and Particle Physics during New York University, who was not partial of a research.

Scientists are already starting to revamp a South Dakota cave site for a $50 million larger, higher-tech chronicle of LUX, called LZ, that will be 70 times some-more supportive and should start operations in 2020, pronounced Brown University’s Richard Gaitskell, another systematic orator for LUX.

Even that won’t be easy. Dark matter is everywhere. Hundreds of millions of dim matter particles pass by Earth each second, Gaitskell said. But a problem is they are “just crazy weak” and they zip by Earth as if it hardly exists, he said.

Gaitskell has spent 28 years sport these particles.

“Over 80 percent of a matter is in this dim matter form. You and we are a flotsam and jetsam; dim matter is a sea,” Gaitskell said. “That’s since one doesn’t give up. We’ve got to figure out what this dim matter member is.”

When pressed, Gaitskell concurred a possibility, however slight and unlikely, that scientists are looking for something that isn’t there.

“It’s positively there. We know dim matter exists” since of a approach it helps form galaxies and creates light hook around universe clusters, McKinsey said.

Weiner said, “It’s tough to know when we will find dim matter since we don’t know precisely what it is. Of course, that’s what creates a hunt for it such a large deal.”

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