Neutrinos come in three species – the tau neutrino, the muon neutrino, and the electron neutrino.
Using the data collected by Super-K, researchers including Boston University physicists Jim Stone (US co-spokesman), Larry Sulak and Ed Kearns confirmed results from the two precursor experiments that about half the neutrinos expected were unseen. But since Super-K is so large, it detects a handful of these neutrinos each week. Billions go through each of us every second without effect.
Because neutrinos carry no charge, they rarely interact with other particles. Though Super-K has yet to detected a single candidate, it observed something equally intriguing: convincing evidence that neutrinos have mass. Detecting proton decay would confirm the Grand Unified Theory of particle physics. Physicists in the US and in Japan designed Super-K to search for, in part, the radioactive decay of the proton, a rare event never before observed. These tubes record the Cherenkov light from charged particles as they pass through the water. One half of the surface of the tank is covered by photosensitive material. The walls of the tank are lined with 11,200 photomultiplier tubes, each an enormous 50 centimeters in diameter. The detector is a 40-meter high by 40-meter diameter stainless steel tank, filled with 50,000 tons of ultra-pure water. Research Descriptions: Neutrino Physics and AstrophysicsĪs a sequel to the combined effort of the two earlier deep underground ring-imaging detectors, IMB and Kamiokande, Super-Kamiokande started recording data deep inside a lead and zinc mine in the Japanese Alps in 1996. Professor James Stone selected as 2009 Jefferson Science Fellow.* “The Super-Kamiokande Proton Decay and Neutrino Experiment”:/static/superk.html * “The K2K Long Baseline Neutrino Oscillation Experiment”: * “The MACRO Experiment”:/static/macro.html In the news: The watch for neutrino bursts from galactic supernovae is a continuing vigilance for the Super-Kamiokande Collaboration. This observation was awarded the Bruno Rossi Prize by the American Astronomical Society. In 1987, while a member of the IMB Experiment (predecessor of SuperK), Stone and his group detected a burst of neutrinos correlated with supernovae SN1987a, which appeared in the Large Magellanic Cloud on February 23, 1987. T2K seeks to measure a neutrino mixing parameter, which if found to be non-zero, could signal the possibility of CP violation in the lepton sector, which in turn could explain the apparent domination of matter over anti-matter in the universe. In the next decade, the upgraded SuperK-III detector will be the primary component for the T2K (Tokai to Kamioka) long baseline neutrino experiment. For the K2K (KEK to Kamioka) experiment, the SuperK detector was used to confirm muon neutrino disappearance effects seen in atmospheric neutrinos by using a beam of neutrinos produced at the KEK proton accelerator and directed 250 kilometers through the earth to the SuperK detector. The SuperK experiment continues to answer important questions in neutrino physics. The quest for proton decay, which began with Stone’s work on the IMB experiment, continues with the SuperK experiment, but none have been found, setting the most sensitive experimental limits to date for the proton lifetime (>10**33 years). The SuperK detector, a 50,000 metric ton water Cherenkov device, provided the first conclusive evidence for the flavor oscillation of atmospheric neutrinos. Professor Stone is the Co-Spokesman for the U.S. Significant evidence for neutrinos having mass was discovered in 1998 by the Super-Kamiokande Collaboration in Japan.
His work involves massive experimental detectors located in deep underground laboratories used to mount searches for the spontaneous disintegration of matter (proton decay) for the existence of massive magnetic monopoles in the cosmic radiation and for neutrino flavor oscillations of atmospheric, solar, and accelerator produced neutrinos. Mein problem als hunter hierbei ist-.Professor James Stone conducts research in experimental elementary particle physics by seeking evidence for the unification of the strong and electroweak forces of nature. beim letzten tk- the eye boss kael´thas lootet man ja bekanntlich in phase 2 diese legendary weapons. Their corpses are.Īlso folgendes problem. The bug is simple enough, and serves little purpose beyond unfair advantage in topping the DPS meters as any class with a DoT effect (although, in case of Shadow Priests like me, it serves as that much extra mana return).Īll of Kael's advisers (Thaladred the Darkener, Master Engineer Telonicus, Grand Astromancer Capernian and Lord Sanguinar) die in phase one. To understand this exploit, you may need to have a rudimentary understanding of the Kael'thas encounter. WoW Exploits, Hacks, Tools & Macros - 5 Replies
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