Nuclear structure of proton-rich unstable nucleus <SUP>28</SUP>P studied by g-factor measurement

ZHENG Yong-Nan; ZHOU Dong-Mei

doi:10.1088/1674-1137/33/S1/069

Chinese Physics C> 2009, Vol. 33> Issue(S1) : 215-217 DOI: 10.1088/1674-1137/33/S1/069

Nuclear structure of proton-rich unstable nucleus ²⁸P studied by g-factor measurement

ZHENG Yong-Nan ^, ,
ZHOU Dong-Mei

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Abstract：
Nuclear structure of proton-rich unstable nucleus ²⁸P has been studied by measuring its g-factor for the first time. The g-factor of ²⁸P (I^π=3⁺, T_1/2=270.3 ms) was measured by means of β-NMR technique combined with the new polarization technique for charge exchange reaction product in the intermediate energy heavy ion collisions. The obtained g-factor of g=0.1028(27) is very much quenched from the Schmidt value, but is well reproduced by the shell model (+0.102). In connection with the magnetic moment of the mirror partner and the β-ray transition probability, the orbital angular momenta and intrinsic spins of protons and neutrons have been determined as 〈l_p〉=0.43(29), 〈l_n〉=1.85(29), 〈S_p)=0.28(4), and 〈S_n〉=0.44(4).

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ZHENG Yong-Nan and ZHOU Dong-Mei. Nuclear structure of proton-rich unstable nucleus ²⁸P studied by g-factor measurement[J]. Chinese Physics C, 2009, 33(S1): 215-217. doi: 10.1088/1674-1137/33/S1/069

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Received: 2008-10-23
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Nuclear structure of proton-rich unstable nucleus ²⁸P studied by g-factor measurement

ZHENG Yong-Nan ^,
ZHOU Dong-Mei

Corresponding author: ZHENG Yong-Nan,

Received Date: 2008-10-23
Accepted Date: 1900-01-01
Available Online: 2009-01-10

Abstract: Nuclear structure of proton-rich unstable nucleus ²⁸P has been studied by measuring its g-factor for the first time. The g-factor of ²⁸P (I^π=3⁺, T_1/2=270.3 ms) was measured by means of β-NMR technique combined with the new polarization technique for charge exchange reaction product in the intermediate energy heavy ion collisions. The obtained g-factor of g=0.1028(27) is very much quenched from the Schmidt value, but is well reproduced by the shell model (+0.102). In connection with the magnetic moment of the mirror partner and the β-ray transition probability, the orbital angular momenta and intrinsic spins of protons and neutrons have been determined as 〈l_p〉=0.43(29), 〈l_n〉=1.85(29), 〈S_p)=0.28(4), and 〈S_n〉=0.44(4).

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Nuclear structure of proton-rich unstable nucleus ²⁸P studied by g-factor measurement

Nuclear structure of proton-rich unstable nucleus ²⁸P studied by g-factor measurement