Antarctic Experiment Reveals Strange 'Ghost' Particles That Physicists Can't Explain
When physicists detected signals of high-energy neutrinos coming from a rather unlikely direction in the cosmos, they naturally went looking for a powerful source that might explain it. An intense examination of the most likely origins of these more reactive forms of 'ghost' particles has now come up empty-handed, opening the way for more exotic speculations over what might be behind the odd signals. Trawling through seven years of data from the neutrino-hunting IceCube experiment, a large team of researchers from around the globe are now forced to admit conventional explanations for the discovery are looking pretty weak.
Physicists are hunting for a particle that they hope could clue us in on some of the biggest mysteries in the universe. IceCube isn’ t the first experiment in which scientists have turned up empty handed in the hunt for the It consists of 5,160 light detecting sensors frozen in a billion tons of Antarctic ice
So, a few physicists concocted a brand-new particle out of whole cloth. Physicists noticed that decay reactions that suggested the existence of the neutrino always had an electron pop out, and To explain these findings, they reasoned that neutrinos always matched up with electrons in these decay
When physicists detected signals of high-energy neutrinos coming from a rather unlikely direction in the cosmos, they naturally went looking for a powerful source that might explain it.
An intense examination of the most likely origins of these more reactive forms of 'ghost' particles has now come up empty-handed, opening the way for more exotic speculations over what might be behind the odd signals.
Trawling through seven years of data from the neutrino-hunting, a large team of researchers from around the globe are now forced to admit conventional explanations for the discovery are looking pretty weak.
The US is building its first new particle collider in decades on Long Island. Stephen Hawking called the technology a 'time machine.'
A new particle collider is set to be built at the Brookhaven National Laboratory in Long Island, New York. Particle colliders smash charged particles against one another at nearly the speed of light to reveal some of their fundamental properties. The only operating one in the US is Brookhaven's Relativistic Heavy Ion Collider. It will shut down in 2024 to make room for the new machine, which could be operational by 2030. Visit Businessinsider.com for more stories. A machine that will investigate the forces that hold matter together finally has a home.
Physicists call them “ ghost particles .” To capture these elusive entities, physicists have conducted some extraordinarily ambitious experiments . So that neutrinos aren’ t confused with cosmic rays (subatomic particles from outer space that do not penetrate the earth), detectors are installed
Michigan State University. "' Ghost particles ' could improve understanding the universe." ScienceDaily. 13, 2016 — Physicists are part of the huge NOvA Neutrino Experiment that just published two articles about the first experimental observations of muon neutrinos changing to
Neutrinos are electron-like members of the Standard Model of fundamental particles. Unlike electrons, they have insanely small masses and no charge.
This slim-bodied neutrality means neutrinos don't care to stop and chat with other particles. Atomic decay deep inside the Sun sends torrents of them through the planet every second, with only a fraction passing close enough to an atom to cause a noticeable response.
To catch the rare flash of a neutrino smashing into a frozen water molecule, the IceCube observatory uses long strings of sensitive light-capturing equipment buried under Antarctic ice.
For nearly a decade, it has been recording hundreds of flashes per day, building a vast database of information on the directions and energies of neutrinos washing over Earth.
A Major New Particle Collider Is Coming To New York
The U.S. Department of Energy has decided on the final location of a major upcoming American particle collider: Brookhaven National Lab on Long Island in New York. The Electron Ion Collider (EIC) is a proposed particle accelerator that will slam electrons into the nuclei of heavy atoms, with the goal of better understanding nuclear structure and the force that holds atoms together. Two national laboratories, Brookhaven and Jefferson Lab in Newport News, Virginia, had been vying for the $US1 ($1) billion+ experiment. Each location offered an existing experiment that would be incorporated into the EIC.
Ghost -like particles known as neutrinos have been puzzling scientists for decades. Part of the family of fundamental particles that make up all known matter "In order to get a measurable signal from the tiny fraction of neutrinos that do interact, neutrino physicists need to build extremely large detectors
There are experiments set up to observe those signals, like the Antarctic Impulsive Transient Antenna (ANITA) experiment on a large balloon. The team also found corroborating evidence for these strange particles in the IceCube experiment buried in the Antarctic ice.
But it's not the only game in town. From an altitude of nearly 40 kilometres above the Antarctic, suspended from a helium balloon, NASA's Antarctic Impulsive Transient Antenna () captures hints of neutrinos with ridiculously high energies smashing into atoms in the atmosphere.
It's still early days for ANITA, but already its first few flights over the past couple of years have successfully spotted several tell-tale flashes of the energetic particles. Strangely, two of the signals have come not from the empty sky above, but up through the planet itself.
For a lazy neutrino fresh from the Sun, this wouldn't be all that surprising. But at the kinds of energies recorded by ANITA, neutrinos become real socialites, merging with our planet's atoms at a much higher rate to leave very few untouched.
"It's commonly said that neutrinos are 'elusive' or 'ghostly' particles because of their remarkable ability to pass through material without smashing into something,"from the University of Wisconsin–Madison in the US.
Intel just confirmed it’s building this tiny modular desktop gaming PC
We’d heard whispers of the Ghost Canyon NUCTonight, Intel gave a sneak peek at the “Ghost Canyon” at CES 2020 in Las Vegas, confirming a leak that we’ve been wondering about for months: the existence of an entire gaming PC built around Intel’s NUC Compute Element initiative to turn its CPUs into swappable cartridges for easily upgradable computers. The leaks said this computer would be just 5 liters in volume, practically as small as a game console, and that’s just what Intel confirmed this evening, as well as the ability to swap out those “Compute Element” CPU cartridges.
When physicists announced in 2012 that they had indeed discovered the Higgs boson, it was not the end of physics . The Higgs boson was the last missing piece of the Standard Model, which explains all we know about subatomic particles and forces.
Particle physics is one of the most interesting fields in physics . Although there are many different particles already, researchers continue to postulate. To explain why dark matter is invisible to observation, physicists speculated that another fundamental force is acting on dark matter.
"But at these incredible energies, neutrinos are like bulls in a china shop – they become much more likely to interact with particles in Earth."
Finding a couple of 'bullish' neutrinos making it all the way through the planet demands some kind of explanation.
Of course, they could just be chance discoveries of incredibly rare examples. Being so lucky isn't out of the question. But it's far more likely that the particles detected had struck the planet as part of a massive crowd.
High-energy neutrinos tend to be born in interactions between cosmic rays and atomic nuclei, before being given a hard push by strong magnetic fields deep out in the cosmos.
Because of this, the researchers worked out the statistics on how many high-energy neutrinos it would take to have a good chance of ANITA spotting them, and dug through IceCube's data to find potential events that could be responsible for making them in high numbers.
"This process makes IceCube a remarkable tool to follow up the ANITA observations, because for each anomalous event that ANITA detects, IceCube should have detected many, many more,"in Switzerland.
Gold Coast polar explorer breaks record for longest unaided Antarctic trip
Geoff Wilson skied into the Russia's Novolazarevskaya Station early on Saturday, Antarctic time, 58 days after he set out, beating the previous record by 206 metres. "I was thrilled to be alive, overjoyed to be done and waves of relief washed over me as I stood almost stunned in a colourful isolated Russian outpost, the wind screaming through it," Dr Wilson wrote on his blog, The Longest Journey. require(["inlineoutstreamAd", "c.
During the experiments in Antarctica , physicists found something unexplainable, something that could change everything we think we know about physics . Thanks to the Standard Model, physicists have known that cosmic rays are capable of reaching and penetrating Earth.
That could be explained , said Nikitenko, if more “background” particles are produced at higher energies that then obscure the signal. Because the analysis is so time-consuming, it could take the CMS team another year to confirm or rule out the existence of a new particle .
"Which, in these cases, we didn't."
So, where to now then?
First off, it's worth keeping in mind that even the most well-funded, professional experiments can be susceptible to errors.
, there was a flurry of excitement over the possibility of finding neutrinos moving faster than light … a , before being found to be .
Theon the pre-print site arXiv.org, with a submission underway to The Astrophysical Journal, where the results will receive greater scrutiny from the scientific community.
But there are a few tantalising possibilities we can consider even now, and even dare to imagine explanations outside of established physics.
"Our analysis ruled out the only remaining Standard Model astrophysical explanation of the anomalous ANITA events,".
"So now, if these events are real and not just due to oddities in the detector, then they could be pointing to physics beyond the Standard Model."
One possibility is cosmic accelerators pumping out bursts of neutrinos at time scales too brief for scientists to catch with current technology.
If we want to really get wild, we might even consider a role for dark matter, or imagine new kinds of particles that act like high-energy neutrinos but are produced in other ways.
There's a lot of room for questions, and right now our search for neutrino secrets is still in its infancy. With so much to learn, a lot of hope is being pinned oninto big mysteries that could lead the way to new physics.
IceCube and ANITA will no doubt be looking out for more of these puzzling high-energy 'ghosts', in the hope of pushing the limits on physics.
The pre-print paper is available at.
Scientists created carbon-sucking 'Frankenstein' bricks using microbes. The material can spawn its own babies. .
Researchers at the University of Colorado Boulder have created a building material that utilises live microbes. The material can regenerate to form three generations of offspring. This could make the bricks an ideal building material for a settlement on Mars. Visit BusinessInsider.com for more stories. Engineers at the University of Colorado Boulder recently conducted an experiment that sounds almost like a kids' science project: They added colonies of green bacteria to a mix of sand and grocery-store gelatin. The result, it turns out, is a novel building material that's a living, breathing organism.