CP violating phase from minimal texture neutrino mass matrix: Test of the phase relevant to leptogenesis

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• 作者：Masataka Fukugita^a ; ^b ; Yuya Kaneta^c ; ^{kaneta@muse.sc.niigata-u.ac.jp} ; Yusuke Shimizu^d ; Morimitsu Tanimoto^e ; Tsutomu T. Yanagida^a
• 刊名：Physics Letters B
• 出版年：2017
• 出版时间：10 January 2017
• 年：2017
• 卷：764
• 期：Complete
• 页码：163-166
• 全文大小：674 K
• 卷排序：764

文摘

The model of neutrino mass matrix with minimal texture is now tightly constrained by experiment so that it can yield a prediction for the phase of CP violation. This phase is predicted to lie in the range δCP=0.77π–1.24πδCP=0.77π–1.24π. If neutrino oscillation experiment would find the CP violation phase outside this range, this means that the minimal-texture neutrino mass matrix, the element of which is all real, fails and the neutrino mass matrix must be complex, i.e., the phase must be present that is responsible for leptogenesis.