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arXiv 0904.4710nucl-ex
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61 Cr的$β$衰变后61 Mn的低能结构

Low-energy structure of 61Mn populated following $β$ decay of 61Cr

H. L. Crawford, P. F. Mantica, J. S. Berryman, R. Broda, B. Fornal, C. R. Hoffman, N. Hoteling, R. V. F. Janssens, S. M. Lenzi, J. Pereira, J. B. Stoker, S. L. … 展开作者

H. L. Crawford, P. F. Mantica, J. S. Berryman, R. Broda, B. Fornal, C. R. Hoffman, N. Hoteling, R. V. F. Janssens, S. M. Lenzi, J. Pereira, J. B. Stoker, S. L. Tabor, W. B. Walters, X. Wang, S. Zhu

摘要:

研究了$^{61}$ Cr $_{37}$基态的$β$衰变。已推导出233 +/- 11 ms的新半衰期,并已将七条延迟的$γ$射线分配给子体$^{61}$ Mn $_{36}$。$^{61}$ Mn $_{36}$的低能级结构类似于较少富中子的$^{57,59}$ Mn核的低能级结构。奇数-A $_{25}$ Mn同位素遵循Z + 1 $_{26}$ Fe同位素的奇偶态的系统趋势,而不是Z - 1 $_{24}$ Cr同位素的系统趋势,其中集体性的可能开始已经被认为在N = 36处发生。

英文摘要:

$β$ decay of the $^{61}$Cr$_{37}$ ground state has been studied. A new half-life of 233 +/- 11 ms has been deduced, and seven delayed $γ$ rays have been assigned to the daughter, $^{61}$Mn$_{36}$. The low-energy level structure of $^{61}$Mn$_{36}$ is similar to that of the less neutron-rich $^{57,59}$Mn nuclei. The odd-A $_{25}$Mn isotopes follow the systematic trend in the yrast states of the even-even, Z + 1 $_{26}$Fe isotopes, and not that of the Z - 1 $_{24}$Cr isotopes, where a possible onset of collectivity has been suggested to occur already at N = 36.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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