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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク X(3872) ： ウィキペディア英語版 X(3872) The X(3872) is an anomalous particle with a mass of 3871.68 MeV/c2 〔(Particle Data Group Live listings )〕 which does not fit into the quark model because of its quantum numbers. It was first discovered in 2003 by the Belle experiment in Japan and later confirmed by several other experimental collaborations. Several theories have been proposed for its nature,〔Eric S. Swanson, (The new heavy mesons: A status report ), ''Physics Reports'', Volume 429, Issue 5, July 2006, Pages 243–305〕 such as a mesonic molecule or a diquark-antidiquark pair (tetraquark). The quantum numbers of X(3872) have been determined by the LHCb Experiment at CERN in March 2013. The values for JPC is 1++.〔(LHCb collaboration: Determination of the X(3872) meson quantum numbers )〕 ==See also== *Meson *Z(4430) *Zc(3900) *Y(4140) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「X(3872)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.