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Latest Leptons Stories

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2005-07-28 13:46:17

BERKELEY, CA "“ Results from KamLAND, an underground neutrino detector in central Japan, show that anti-electron neutrinos emanating from the earth, so-called geoneutrinos, can be used as a unique window into the interior of our planet, revealing information that is hidden from other probes. "This is a significant scientific result," said Stuart Freedman, a nuclear physicist with a joint appointment at the Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of...

2005-07-24 02:52:57

The journal Nature publishes this week a study of electronic dynamics ("Direct observation of electron dynamics in the attosecond domain"). The participants of this study, together with other researchers, have been professors Daniel Sánchez-Portal and Pedro Miguel Etxenike from the Donostia International Physics Center (DIPC). A researcher group of various German laboratories has done the experimental part of the study, and the theoretical explanation based on quantum physics of what has...

2005-07-12 01:30:00

Two properties of an electron - its spin and its charge - are generally thought to be inseparable, intrinsic characteristics, no more given to sudden changes or going off on their own than say, the fur on a cat or the paint on a bicycle. But a team of scientists at the Weizmann Institute of Science has recently demonstrated conclusively that, in very specific circumstances, spin can become separated from charge and progress independently down a wire. Their findings appeared in a recent issue...

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2005-06-15 09:29:03

Oxford -- Astrophysicists from the Universities of Oxford and Rome have for the first time found evidence of ripples in the Universe's primordial sea of neutrinos, confirming the predictions of both Big Bang theory and the Standard Model of particle physics. Neutrinos are elementary particles with no charge and very little mass, which are extremely difficult to study due to their very weak interaction with matter. Yet pinning down the physical properties of neutrinos is of paramount...

2005-05-27 22:10:00

ATHENS, Ohio "“ Today's computers and other technological gizmos operate on electronic charges, but researchers predict that a new generation of smaller, faster, more efficient devices could be developed based on another scientific concept "“ electronic "spin." The problem, however, is that researchers have found it challenging to control or predict spin "“ which keeps practical applications out of reach. But physicists in Europe, California and at Ohio University now have...

fb3ee7622447f6e1ac16f0a6616180711
2005-05-27 16:00:00

ATHENS, Ohio -- Today's computers and other technological gizmos operate on electronic charges, but researchers predict that a new generation of smaller, faster, more efficient devices could be developed based on another scientific concept -- electronic "spin." The problem, however, is that researchers have found it challenging to control or predict spin "“ which keeps practical applications out of reach. But physicists in Europe, California and at Ohio University now have found a...


Latest Leptons Reference Libraries

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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...

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