伴随质子衰变的韧致辐射多极模型
Multipolar model of bremsstrahlung accompanying proton-decay of nuclei
摘要：
研究了质子衰变过程中原子核韧致辐射光子的发射。提出了一种新的改进的多极模型来描述这一过程。详细阐述了矩阵元计算的角度形式。计算了$^{157}{\rm Ta}$、$^{161}{\rm Re}$、$^{167}{\rm Ir}$和$^{185}{\rm Bi}$核从$2s_{1/2}$态衰变，$^{109}_{53}{\rm I}_{56}$和$^{112}_{55}{\rm Cs}_{57}$核从$1d_{5/2}$态衰变，$^{146}_{69}{\rm Tm}_{77}$和$^{151}_{71}{\rm Lu}_{80}$核从$0h_{11/2}$态衰变的韧致辐射几率.这样的光谱具有类似于在$α$ -衰变期间发射的韧致辐射光子的实验数据的值的顺序。这表明在实验上研究质子衰变过程中的韧致辐射光子并进行进一步测量是不可能的。
英文摘要：
Emission of bremsstrahlung photons accompanying proton decay of nuclei is studied. The new improved multipolar model describing such a process is presented. The angular formalism of calculations of the matrix elements is stated in details. The bremsstrahlung probabilities for the $^{157}{\rm Ta}$, $^{161}{\rm Re}$, $^{167}{\rm Ir}$ and $^{185}{\rm Bi}$ nuclei decaying from the $2s_{1/2}$ state, the $^{109}_{53}{\rm I}_{56}$ and $^{112}_{55}{\rm Cs}_{57}$ nuclei decaying from the $1d_{5/2}$ state, the $^{146}_{69}{\rm Tm}_{77}$ and $^{151}_{71}{\rm Lu}_{80}$ nuclei decaying from the $0h_{11/2}$ state are predicted. Such spectra have orders of values similar to the experimental data for the bremsstrahlung photons emitted during the $α$-decay. This indicates on real possibility to study bremsstrahlung photons during proton decay experimentally and perform further measurements.
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