neutrino

Neutrinos are the only particles that seem to just spin anticlockwise.

But how much of a delay between neutrinos and photons would we expect if the OPERA result applied?

The point is to see if they are still muon-neutrinos when they arrive at Super-Kamiokande.

The thinking goes that WIMPs are very heavy, yet like neutrinos they rarely bump into matter to produce a detectable signal.

As the neutrinos emitted this radiation, they ought to have been losing a commensurate amount of energy.

Northern-sky neutrinos come streaking upward through the detector, from the bedrock toward the surface of the ice.

Take the recent question of whether neutrinos, a type of near-massless subatomic particle, can travel faster than light.

the most common are the solar (tau) neutrinos that come from the nuclear processes taking place at the core of the Sun.

But their measurement seems to show the neutrinos arriving early - travelling faster than the speed of light.

Neutrinos, which have no charge and very little mass, form out of nuclear reactions and particle decays.

The old beam was created by smashing long bunches of protons into a target to produce neutrinos, which would then travel on to Gran Sasso.

Most of the neutrinos that travel through the Earth come either from the sun or from sources far beyond the solar system.

There is a good chance that this outward diffusion of neutrinos and antineutrinos plays a crucial role in the supernova explosion.

Jastrow blows phantom kisses like neutrinos across the chasm between science and religion , seeming almost wistful to make a connection .

And if the oscillations of neutrinos and anti-neutrinos are different, it would be an example of what physicists call CP violation.

Since neutrinos have a tiny mass, the speed should be very close to the speed of light.

That means that the OPERA neutrinos would have to be interacting with matter in some bizarre way that violates special relativity.

Shockingly, the neutrinos appeared to beat light speed by 60 billionths of a second.

This is not the first time that beams of neutrinos have been proposed as a means of interstellar communication.

It has to do with the wavelike nature of neutrinos.

Experimenters who study collisions of neutrinos with nuclei experienced frustrations of a different sort - an excess of riches.

It already whips up the world's most intense beams of neutrinos, using kit that has nothing to do with the Tevatron.

When neutrinos interact with electrons or nuclei of those water or oil molecules, they give off a flash of light that sensors can detect.

These sterile neutrinos are expected to be heavier than the ordinary neutrinos , and are a candidate for dark matter.

Their annihilation in the Sun would produce energetic neutrinos detectable from Earth.

The intriguing results indicate a new property of the enigmatic particles known as neutrinos.

However, bounds on neutrinos indicate that ordinary neutrinos make only a small contribution to the density dark matter.

IceCube takes advantage of neutrinos' slipperiness, using Earth as a filter of more interactive particles.

They also say there were no dips in the neutrinos' energy spectrum that would imply that they were emitting Cherenkov-like radiation.

Similarly, oscillating neutrinos are comprised of three different waves that combine in different ways as they travel through space.

This experiment is designed to measure how the neutrinos change their properties as they go.

Other than light, the Sun is also emitting neutrinos which penetrate through the whole Sun.

The team shook the world two months ago with its claim that neutrinos could beat the speed of light.

Their findings strengthened the argument that the strange swings in decay rates were caused by neutrinos from the sun.

Dr Learned, however, reckons the pulse-period of a Cepheid could be modulated by a suitable beam of neutrinos.

However, since neutrinos oscillate from one flavor to another, I'd be surprised if this was the key difference.

Because there are so many neutrinos, their tiny masses add up to influence the overall distribution of galaxies.

Cern produces beams of neutrinos, ghostly particles that can travel through the earth as easily as a bullet through a bank of fog.

Fast moving neutrinos do not play a major role in the evolution of structure in the universe.

But Contaldi contends that OPERA's clocks, rather than its neutrinos, may have been out of whack.

Fortunately, much of that is produced by nuclear reactions in stars, and such stellar neutrinos have relatively low energies.

Neutrinos from a subsidiary decay process are the ones to be detected.

To detect artificial neutrinos using existing telescopes means screening out the natural neutrino background.

Also detecting neutrinos can be used to analyse the origin of UHECR (ultra high energy cosmic ray).

Hot dark matter, while it certainly exists in our universe in the form of neutrinos , is therefore only part of the story.

Neutrinos, it must be confessed, are neglected for a reason.

The neutrinos impact water molecules and the sensors record the pattern of light radiated by the collisions.

If theory is correct, some will have changed their spots and become electron-neutrinos during the intervening journey.

Neutrinos of the Living Dead -- it as a nice ring to it.

If the experiment is tested and replicated and the only explanation is faster-than-light neutrinos, is E = mc2 done for?

Sterile neutrinos can be added to the standard model to explain the small neutrino mass.

With no charge and practically no mass, high-energy neutrinos pass unperturbed through interstellar magnetic fields.

Thus, according to the accepted laws of physics, the neutrinos' speed must have been equal to but no greater than the speed of light.

FAITH LAPIDUS: The MINOS experiment may also measures neutrinos traveling faster than the speed of light.

Other security applications could include using neutrinos, which penetrate the Earth, to communicate with submarines.

New evidence suggesting neutrinos can travel faster than the speed of light has shined a spotlight on how light moves and acts.

Most of the energy would escape as thermal neutrinos, while another fraction is emitted as gravitational waves.

Interactions involving neutrinos are mediated by the weak interaction.

The measurement amounts to the neutrinos travelling faster than the speed of light by a fraction of 20 parts per million.

Strings of Digital Optical Modules (DOMs) are lowered into the deep holes, surveying the ice for neutrinos.

The neutrinos seemed to arrive a little earlier than expected.

Crucially, it also replicated the finding with an all-new batch of neutrinos.

With the beam tightened up, the neutrinos still arrived at Gran Sasso 60 nanoseconds faster than light would have.

This might explain why neutrinos oscillate between their antimatter and regular-matter states.

With further advance in technology, neutrinos will become a new tool for human to explore the universe.

Winkler and Kappl used the Super-Kamiokande neutrino detector to search for such high energy solar neutrinos.

Unfortunately, neutrinos' immutability also makes them rather difficult to detect.

The possibilities for neutrinos are less constrained by previous measurements, he says.

In other words, if the effect really were this large, we would have seen the neutrinos from SN 1987A way back in 1984.

The neutrinos may be taking a shortcut through space-time, by travelling from Cern to Gran Sasso through extra dimensions.

The neutrino-manufacturing process at J-PARC smashes protons into rods of graphite to churn out muon-neutrinos.

How does the Sun produce neutrinos?

As stars explode in a supernova, most of their energy streams out as neutrinos.

The Opera experiment detects neutrinos as they strike 150, 000 "bricks" of photographic emulsion films interleaved with lead plates.

EVEN by the elevated standards of particle physics neutrinos are weird beasts.

If physicists have learned anything recently, it is that neutrinos cannot be expected to conform to expectations.

Most of the energy generated by the collapse is carried away by neutrinos.

Unseen right-handed neutrinos may also account for mysterious dark matter.

Neutrinos are electrically neutral, virtually mass-less elementary particles that can pass through miles of lead unhindered.

The neutrinos could hold the key to understanding the origin and physical processes of the highest energy particles in nature.

Perhaps it's a universe of electron and electricity. Perhaps it's universe of lighteningboltsand neutrinos but no stable matter.

That's because when two neutrons form a pair, they release energy that can go into producing more neutrinos.

Then the neutrinos wouldn't have to outstrip light to reach their destination in the observed time.

Read more: "Neutrinos: Complete guide to the ghostly particle"

The MINOS experiment saw hints of neutrinos moving at faster than the speed of light in 2007 but has yet to confirm them.

Some physicists hope to detect neutrinos given off by secret nuclear reactors.

Other detectors pick up naturally-produced neutrinos.

Neutrinos are mysterious particles.

By the time it gets to Gran Sasso the beam has fanned out, and big though it is, Opera only sees neutrinos from part of the beam.

NASA explains that neutrinos are neutral particles that cannot cause the earth's crust to soften.

No one knows how neutrinos could interact with radioactive materials to change their rate of decay.

These neutrinos are acting normally. No mass, no electrical charge.

IceCube can also detect more local neutrinos and muons that originate from cosmic rays striking Earth's atmosphere.

i thought your thesis on neutrinos was extremely .

The LSND signal may become something much worse than sterile neutrinos: zombie neutrinos that can't be brought to life or killed.

There are three types of neutrinos: electron neutrinos, muon neutrinos and tau neutrinos.

In other words, they are claiming that, unless there is some hitherto undetected systematic, neutrinos are traveling faster than light.

If the neutrinos were travelling as fast as those going from CERN to OPERA, they should have arrived in 1982.

". . . We don't allow faster-than-light neutrinos in here, " says the barman.

However, the neutrinos we detect were generated minutes ago.

Neutrinos have already streamed through your body!

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

The barman said: "Sorry, we don't serve neutrinos. " A neutrino enters a bar.

Therefore neutrinos are very useful for us to detect; we can get a direct, near real-time measure of the conditions inside our closest star.

In 2007, the MINOS experiment searched for faster-than-light neutrinos but didn't see anything statistically significant.

High-energy neutrinos could provide the answer.

That's physicist Lawrence Krauss on neutrinos, on the June 15th weekly Science Talk podcast.

IceCube's task is to watch for energetic neutrinos emanating from violent cosmic events such as supernovae and gamma-ray bursts.

They also measure the time distribution of neutrinos arriving at Gran Sasso.

Some theorists say this is evidence for extra dimensions, which could host the "missing" , right-handed neutrinos.

These protons hit a target and end up producing neutrinos.

The idea is that right-handed neutrinos might be much heavier than left-handed ones and so could provide the requisite gravity.

The latest example of neutrinos' weirdness comes from Japan.

Which is also a strong source of neutrinos, will be left behind.

Another source of neutrinos is from dying stars.

Since the speed of light is 299, 792, 458 metres per second, the neutrinos were evidently travelling at 299, 798, 454 metres per second.

Of course, since the expectation is that neutrinos should NEVER travel faster than light, there's no way to compute what we'd expect.

Yes, you heard me: neutrinos.

They carried out an experiment that fired a beam of neutrinos from CERN to Italy's INFN Gran Sasso Laboratory.

The third sort, tau-neutrinos, are not involved in the experiment.

What's cool about neutrinos?

Instead they would produce gamma rays, neutrinos and antimatter such as positrons and antiprotons, Gondolo said.

If CERN's neutrinos really are travelling faster than light, it is therefore a big deal.

In 1987, trillions of neutrinos arrived at Earth 3 hours before the dying star's light caught up.

That is because most of the neutrinos that reach the Earth pass right through it.

These are neutrinos acting normally.

The result, published in arXiv, an online database, is based on data from 15, 000 neutrinos detected at Gran Sasso over three years.

Trillions of neutrinos are produced by the sun every day.

At that time, a huge number of neutrinos was made and filled the whole universe.

So they know the distance the neutrinos travel, they know how long it takes them, and they can therefore measure the speed.

The neutrinos appeared to be reaching the detector 60 nanoseconds faster than light would take to cover the same distance

Remember that the neutrinos are supposed to beat light by about 60 ns over a travel time of 3 ms. That's

Those faster-than-light neutrinos. Four things to think about

Equation of State of Dense Matter with Trapped Neutrinos

Massive Neutrinos in Physics and Astrophysics

'Light-speed' neutrinos point to new physical reality

One kind of particles produced by the p-p chain is neutrino, which is massless and neutral. We will discuss more on neutrinos in

Einstein's Theory May Put Brakes on Faster-Than-Light Neutrinos

the neutrinos are causing a physical reaction

These neutrinos are acting normally. No mass,

Faster-than-light neutrinos? New answers flood in

First Map of Cosmic Neutrinos Unveiled

Transport of Neutrinos in Dense Plasma

Neutrinos: Everything you need to know

an interaction between elementary particles involving neutrinos or antineutrinos that is responsible for certain kinds of radioactive decay;

The discovery of two kinds of neutrinos