Heavy-ion double charge exchange reactions: A tool toward $0 \nu\beta\beta$ nuclear matrix elements
Heavy-ion double charge exchange reactions: A tool toward $0 \nu\beta\beta$ nuclear matrix elements
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重离子双电荷交换反应：实现 $0 uetaeta$ 核基质元素的工具
DOI：
10.1140/epja/i2015-15145-5
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
A. Foti
中科院分区：
文献类型：
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作者：
F. Cappuzzello;M. Cavallaro;C. Agodi;M. Bondí;D. Carbone;A. Cunsolo;A. Foti
无中微子双β衰变的核基质元素的知识是中微子物理学的基础。在本文中，提出了一种通过测量双电荷交换核反应的横截面来提取核基质元素信息的创新技术。基本点是两个过程的初态和终态波函数相同，且跃迁算子相似。双电荷交换截面可以因式分解为包含基质元素和核反应因子的核结构项。 40Ca(18O,18Ne)40Ar 反应在 270 MeV 入射能量下的首个开创性实验结果表明，这种截面分解合理地适用于关键的 0+0+ 跃迁到 40Args，至少在非常向前的角度。
The knowledge of the nuclear matrix elements for the neutrinoless double beta decay is fundamental for neutrino physics. In this paper, an innovative technique to extract information on the nuclear matrix elements by measuring the cross section of a double charge exchange nuclear reaction is proposed. The basic point is that the initial- and final-state wave functions in the two processes are the same and the transition operators are similar. The double charge exchange cross sections can be factorized in a nuclear structure term containing the matrix elements and a nuclear reaction factor. First pioneering experimental results for the40Ca(18O,18Ne)40Ar reaction at 270 MeV incident energy show that such cross section factorization reasonably holds for the crucial 0+0+transition to40Args, at least at very forward angles.
与无中微子双β衰变相关的双伽莫夫-泰勒跃迁
DOI：
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发表时间：
2018
期刊：
影响因子：
--
作者：
PACS Collaboration: Kakazu Junpei;Ishikawa Ken-ichi;Ishizuka Naruhito;Kuramashi Yoshinobu;Nakamura Yoshifumi;Namekawa Yusuke;Taniguchi Yusuke;Ukita Naoya;Yamazaki Takeshi;Yoshie Tomoteru;Javier Menendez
通讯作者：
Javier Menendez