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The K2K experiment (KEK to Kamioka) was a … The K2K experiment (KEK to Kamioka) was a neutrino experiment that ran from June 1999 to November 2004. It used muon neutrinos from a well-controlled and well-understood beam to verify the oscillations previously observed by Super-Kamiokande using atmospheric neutrinos. This was the first positive measurement of neutrino oscillations in which both the source and detector were fully under experimenters' control. Previous experiments relied on neutrinos from the Sun or from cosmic sources. The experiment found oscillation parameters which were consistent with those measured by Super-Kamiokande.t with those measured by Super-Kamiokande.
, K2K实验（从KEK到神冈观测站）是一个从1999年6月运行至2004年11月的中微子实验。它用一个精准控制且精确已知的源发射的μ子中微子来验证中微子振荡，而该现象先前被使用用大气中微子的超级神冈实验观测到。 这是第一个在发射源和探测器都完全受控的情况下主动测量中微子振荡的实验。以前的实验都依靠太阳中微子和。 而该实验发现的振荡参数符合在超级神冈中测量到的。
, K2K (pour (en)KEK to Kamioka) est une expé … K2K (pour (en)KEK to Kamioka) est une expérience japonaise de physique des particules, qui concerne les neutrinos.KEK étant le centre de recherche de Tsukuba (nord-est de Tokyo) où les neutrinos muoniques sont créés et Kamioka est le nom de l'emplacement du détecteur Super-Kamiokande (SK). Le flux de neutrinos muoniques à KEK va être mesuré par un détecteur proche. On pourra ainsi prédire le nombre de neutrinos que SK devrait mesurer si les neutrinos n'oscillaient pas, ainsi que leur spectre en énergie. Or, on observe un nombre et un spectre de neutrinos muoniques incompatibles avec cette théorie. Cela signifie que les neutrinos muoniques ont oscillé en un autre type de neutrinos, électroniques, tauniques ou un type jusqu'ici inconnu. On a ainsi observé leur disparition, ce qui contraint les paramètres d'oscillation vers d'autres types de neutrinos, but de l'expérience.s types de neutrinos, but de l'expérience.
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K2K (pour (en)KEK to Kamioka) est une expé … K2K (pour (en)KEK to Kamioka) est une expérience japonaise de physique des particules, qui concerne les neutrinos.KEK étant le centre de recherche de Tsukuba (nord-est de Tokyo) où les neutrinos muoniques sont créés et Kamioka est le nom de l'emplacement du détecteur Super-Kamiokande (SK).cement du détecteur Super-Kamiokande (SK).
, K2K实验（从KEK到神冈观测站）是一个从1999年6月运行至2004年11月的中微子实验。它用一个精准控制且精确已知的源发射的μ子中微子来验证中微子振荡，而该现象先前被使用用大气中微子的超级神冈实验观测到。 这是第一个在发射源和探测器都完全受控的情况下主动测量中微子振荡的实验。以前的实验都依靠太阳中微子和。 而该实验发现的振荡参数符合在超级神冈中测量到的。
, The K2K experiment (KEK to Kamioka) was a … The K2K experiment (KEK to Kamioka) was a neutrino experiment that ran from June 1999 to November 2004. It used muon neutrinos from a well-controlled and well-understood beam to verify the oscillations previously observed by Super-Kamiokande using atmospheric neutrinos. This was the first positive measurement of neutrino oscillations in which both the source and detector were fully under experimenters' control. Previous experiments relied on neutrinos from the Sun or from cosmic sources. The experiment found oscillation parameters which were consistent with those measured by Super-Kamiokande.t with those measured by Super-Kamiokande.
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K2K
, K2K experiment
, K2K实验
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