物理セミナー

日時: 2004-10-26 16:00 - 17:00
場所: 4号館3F輪講室345
会議名: Extracting the parameters of the PMNS mixing matrix from future neutrino experiments. T2K and beyond -- 2nd lecture of the series --
連絡先: 物理セミナー世話人 
講演者: Dr.J.J. Gomez-Cadanas  (IFIC/U.Valencia, now visiting at KEK)
講演言語: 英語
URL: http://seminar.kek.jp/physics
アブストラクト: Future neutrino facilities, starting with T2K will study subdominant transitions nmu -->ne, nm-->ne and ne-->ntau with the aim of extracting the accesible parameters of the neutrinomixing matter, dm23, theta23, theta13 and delta. This is a challenging task, given the fact that all the above parameters, as well as the solar ones are correlated. In particular, the correlations between the unknown parameters (theta13, delta) are very strong. In addition, an eigth-fold degeneracy appears when trying to determine (theta13,delta) from experimental measurements. In this lectures I discuss the problem and how to adress it experimentally. In particular the consequences for T2K as well as future facilities (Beta-beam, neutrino-factory) will be discussed. Abstract:Future neutrino facilities, starting with T2K will study subdominant transitions nmu -->ne, nm-->ne and ne-->ntau with the aim of extracting the accesible parameters of the neutrinomixing matter, dm23, theta23, theta13 and delta. This is a challenging task, given the fact that all the above parameters, as well as the solar ones are correlated. In particular, the correlations between the unknown parameters (theta13, delta) are very strong. In addition, an eigth-fold degeneracy appears when trying to determine (theta13,delta) from experimental measurements. In this lectures I discuss the problem and how to adress it experimentally. In particular the consequences for T2K as well as future facilities (Beta-beam, neutrino-factory) will be discussed.

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