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Latest Neutrino Stories

In Neutrino-less Double-beta Decay Search
2012-07-19 11:32:15

Pocar, Kumar and the team of 60 scientists using an instrument called the EXO-200 detector, succeeded in setting a new lower limit for the half-life of this ephemeral nuclear decay; though no one has yet seen it, important progress was made Physicists Andrea Pocar and Krishna Kumar of the University of Massachusetts Amherst, part of an international research team, recently reported results of an experiment conducted at the Enriched Xenon Observatory (EXO), located in a salt mine one-half...

Looking Into The Heart Of A Supernova
2012-07-12 21:01:00

Caltech simulation points out how to detect a rapidly spinning stellar core Each century, about two massive stars in our own galaxy explode, producing magnificent supernovae. These stellar explosions send fundamental, uncharged particles called neutrinos streaming our way and generate ripples called gravitational waves in the fabric of space-time. Scientists are waiting for the neutrinos and gravitational waves from about 1000 supernovae that have already exploded at distant locations in...

shutterstock_81277057
2012-07-10 11:36:52

Lee Rannals for redOrbit.com - Your Universe Online Scientists will be using IceCube, the world's largest telescope buried under the South Pole, to hunt for neutrinos. IceCube is bigger than the Empire State building, the Chicago Sears Tower and Shanghai's World Financial Center combined, taking a total of 10 years to build. The telescope is designed to help scientists understand the mysterious tiny particles known as neutrinos. These particles are emitted by exploding stars and move...

2012-06-21 23:37:27

Key experiment in nuclear physics Stable tin, as we know it, comprises 112 nuclear particles — 50 protons and 632 neutrons. The neutrons act as a kind of buffer between the electrically repelling protons and prevent normal tin from decaying. According to the shell model of nuclear physics, 50 is a "magic number" that gives rise to special properties. Tin-100, with 50 protons and 50 neutrons, is "doubly magic," making it particularly interesting for nuclear physicists. Shooting...

CERN Confirms Neutrinos Not Faster Than Light
2012-06-11 06:29:34

Einstein´s Theory Of Relativity Preserved Physicists working at the European Center for Nuclear Research (CERN) in Switzerland on Friday concluded once and for all that neutrinos are definitely not faster than the speed of light, preserving Einstein´s Theory of Special Relativity that was challenged by earlier experiments. The challenge was first made last year when researchers published results of an experiment that seemed to indicate that neutrinos were moving about 3.7...

Physicists Make Closest Measurement Of Neutrinoless Double-Beta Decay Yet
2012-06-05 03:43:51

Physicists searching for a hypothetical and rare process involving radioactive decay of atomic nuclei have gotten their most sensitive results to date, suggesting that these mysterious particles behave like other elementary particles at the quantum level. If such a discovery can be made, the researchers said the process could have profound implications for how scientists understand the fundamental laws of physics and could help solve some of the biggest mysteries of the universe. The...

Scientists Weed Out 15-Year-Old Theory On Cosmic Rays
2012-04-19 04:27:13

Researchers using the IceCube Neutrino Observatory have taken the first steps to determine how the highest energy cosmic rays are produced. Francis Halzen, the IceCube principal investigator, said that although they haven't discovered where cosmic rays have come from, they have made a big leap forward in ruling out one of the leading predictions. The researchers wrote in a paper published in the journal Nature that they searched for neutrinos emitted from 300 gamma ray bursts between...

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2012-03-30 12:32:30

The Italian professor who claimed particles were moving faster than the speed of light has resigned after his finding was overturned. Italy's National Institute of Nuclear Physics (INFN) said Antonio Ereditato has stepped down as coordinator of the OPERA experiment. The experiment was measuring the speed at which sub-atomic particles called neutrinos travelled from the CERN research center in Geneva to Gran Sasso in central Italy. At first, the researchers believe the particles had...

Faulty Wire To Blame For OPERA’s Speed Of Light Experiment Results
2012-02-23 10:14:01

A claim by scientists working at CERN that neutrinos had traveled faster than light in a September experiment has been proved untrue, after further investigation led them to find a faulty wire connection between a timer and a computer. The US journal Science reported on Wednesday that the 60-nanosecond discrepancy that led physicists to believe neutrinos were traveling faster than the speed of light was in fact the conclusion of a bad connection in a fiber optic cable connecting a GPS...

Neutrino-Detecting Telescope Receives Priority EU Funding
2012-01-23 12:35:23

A $300-plus million dollar deep sea observatory which will detect high-energy particles bombarding the Earth from outer space has just received priority funding from the European Union (EU), according to a report by Telegraph Science Correspondent Richard Gray. According to Gray, scientists are hoping that the £210 million ($326 million) Multi-Cubic Kilometre Neutrino Telescope (KM3NeT) will be able to observe trace materials left behind by neutrinos as they pass through our planet....


Latest Neutrino Reference Libraries

45_cdbc4d69ba819105e29a44f507ff8e90
2009-05-14 17:51:56

The IceCube Neutrino Observatory is a neutrino telescope that is currently being built at the Amundsen-Scott South Pole Station. IceCube is being constructed in deep Antarctic ice by deploying thousands of PMTs (photomultiplier tubes) at depths of 4750 to 8000 feet. These spherical optical sensors are deployed on strings of sixty modules each, into holes melted by hot water drilling. Since 2005, 59 strings have been deployed and installation is expected to be complete by 2011. The strings are...

7_58175f5465a1e9a63adec3509c888ff12
2004-10-19 04:45:44

WIMP -- In astronomy, WIMPs, or weakly interacting massive particles, figure into one explanation of the dark matter problem. The particles are called "weakly interacting" because they seem not to have much interaction with normal matter (electrons, protons, and neutrons) other than gravitational attraction (thus "massive"). Assuming that there are Weakly Interacting Massive Particles, these particles would then fall out of equilibrium with the universe when they are non-relativistic....

4_ca2a430d92c0a654eab512344edfa0dd2
2004-10-19 04:45:41

Solar Radiation -- Solar radiation is radiant energy emitted by the sun due to nuclear fusion reactions. Fusion is the process whereby stars produce huge quantities of energy from the fusion of hydrogen or helium, in one of the most efficient processes of energy generation. The radiation referred to is usually electromagnetic energy, particularly infrared radiation, visible light, and ultraviolet. Some stars are known to emit radiation of other wavelengths. Solar neutrinos are a...

3_7495dfc8b5d352a0e92e372fcac2cea62
2004-10-19 04:45:40

Supernova 1987a -- Supernova 1987a was a supernova in the Large Magellanic Cloud, a nearby dwarf galaxy. It occurred approximately 50 kiloparsecs from Earth, the closest supernova since Supernova 1604, which occurred in the Milky Way itself. The light from the supernova reached Earth on February 23, 1987. Its brightness peaked in May with a magnitude of about 3 and slowly declined in the following months. It was modern astronomers' first opportunity to see a supernova up close....

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2004-10-19 04:45:40

Sudbury Neutrino Observatory -- The Sudbury Neutrino Observatory (SNO) is taking data that has provided revolutionary insight into the properties of neutrinos and the core of the sun. The detector, shown in the artist's conception below, was built 6800 feet under ground, in INCO's Creighton mine near Sudbury, Ontario. SNO is a heavy-water Cherenkov detector that is designed to detect neutrinos produced by fusion reactions in the sun. It uses 1000 tonnes of heavy water, on loan from...

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