Magnetic moment measurements of mirror nuclei <SUP>12</SUP>B and <SUP>12</SUP>N

ZHENG Yong-Nan; ZHOU Dong-Mei; YUAN Da-Qing; ZHANG Xi-Zhen; ZUO Yi; XU Yong-Jun; ZHU Jia-Zheng; WANG Zhi-Qiang; LUO Hai-Long; FAN Ping; ZHU Sheng-Yun

Chinese Physics C> 2008, Vol. 32> Issue(S2) : 174-176

Magnetic moment measurements of mirror nuclei ¹²B and ¹²N

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Abstract：
The spin polarized β-emitting mirror nuclei ¹²B(I^π=1⁺,T_1/2=20.18 ms) and ¹²N(I^π=1⁺,T_1/2=11 ms) are produced by the low nuclear reactions ¹¹B(d, p) ¹²B and ¹⁰B(³He,n) ¹²N and by selecting the projectile energy and the recoil angle. Their magnetic moments are measured by the β-NMR technique. The magnetic moments obtained after Knight shift correction are μ(¹²B)=1.001(17) μ_N and μ(¹²N)=0.4571(1) μ_N. The calculation using the existing shell model could not reproduce the measured magnetic moments for ¹²B and ¹²N simultaneously.

References

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ZHENG Yong-Nan, ZHOU Dong-Mei, YUAN Da-Qing, ZHANG Xi-Zhen, ZUO Yi, XU Yong-Jun, ZHU Jia-Zheng, WANG Zhi-Qiang, LUO Hai-Long, FAN Ping and ZHU Sheng-Yun. Magnetic moment measurements of mirror nuclei ¹²B and ¹²N[J]. Chinese Physics C, 2008, 32(S2): 174-176.

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Received: 2008-07-17
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Magnetic moment measurements of mirror nuclei ¹²B and ¹²N

Corresponding author: ZHENG Yong-Nan,

Received Date: 2008-07-17
Accepted Date: 1900-01-01
Available Online: 2008-01-03

Abstract: The spin polarized β-emitting mirror nuclei ¹²B(I^π=1⁺,T_1/2=20.18 ms) and ¹²N(I^π=1⁺,T_1/2=11 ms) are produced by the low nuclear reactions ¹¹B(d, p) ¹²B and ¹⁰B(³He,n) ¹²N and by selecting the projectile energy and the recoil angle. Their magnetic moments are measured by the β-NMR technique. The magnetic moments obtained after Knight shift correction are μ(¹²B)=1.001(17) μ_N and μ(¹²N)=0.4571(1) μ_N. The calculation using the existing shell model could not reproduce the measured magnetic moments for ¹²B and ¹²N simultaneously.