Measurement of the Gamow-Teller Branching Ratio in the β-Decay of 21Na

被引:0
|
作者
Achouri, N. L. [1 ]
Angelique, J. -C. [1 ]
Ban, G. [1 ]
Bastin, B. [1 ,3 ,5 ]
Blank, B.
Dean, S. [2 ]
Dendooven, P. G. [2 ]
Giovinazzo, J. [3 ]
Grevy, S. [4 ]
Jungmann, K.
Laurent, B. [1 ,6 ]
Lienard, E. [1 ]
Naviliat-Cuncic, O. [1 ]
Orr, N. A. [1 ]
Rogachevskiy, A. [2 ]
Sohani, M. [2 ]
Traykov, E. [3 ]
Wilschut, H.
机构
[1] Univ Caen, LPC Caen, CNRS, ENSICAEN,IN2P3, F-14032 Caen, France
[2] Kernfys Versneller Inst, Groningen 9747, Netherlands
[3] Univ Sci Technol Bordeaux, CNRS IN2p3, Gradignam, France
[4] CNRS IN2p3, CEA DSM, GANIL, Caen, France
[5] K U, Inst Voor Kern Stralingsfys, B-3001 Leuven, Belgium
[6] CEA DAM, Serv Phy Nuvl, Bruyeres Le Chatel, France
关键词
Branching ratio; beta-decay;
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暂无
中图分类号
O59 [应用物理学];
学科分类号
摘要
The beta-decay branching ratio of the GT transition in Na-21 to the first excited state in Ne-21 has been measured. The value obtained of 4.93(20)% is in agreement with the most recent measurement and with the value adopted so far. This confirms that the branching ratio is not the source of discrepancy in a previous measurement of beta-nu correlation coefficient which exhibited a 3 sigma difference with respect to the Standard Model prediction.
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页码:362 / +
页数:2
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