ADOPTED LEVELS, GAMMAS for 24Si

Authors: M. Shamsuzzoha Basunia, Anagha Chakraborty |  Citation: Nucl. Data Sheets 186, 2 (2022) |  Cutoff date: 31-Mar-2022 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-23280 keV SYS(n)= 21280 keV SYS(p)= 3292 keV 19Q(α)= -9157 keV 20
Reference: 2021Wa16

References:
  A  2H(23Al,nγ)  B  9Be(26Si,24SiG)
  C  12C(24Si,23ALPG)  D  Coulomb Excitation
  E  28Si(α,8He) 








E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)M(γ)Final Levels
     0ABCDE 0+ 141.3 ms 15 
% ε = 100
% εp = 32.4 13
     
  1872 3 ABCDE 2+ 1.3 ps 4    1872 3 
  100
[E2]
     0
0+
  3445 5 AB  E (2+)     1573 4 
 

  1872
2+
  3469 6 A     (0+)     1597 5 
 

  1872
2+

E(level): Deduced from measured Eγ in 9Be(26Si,24Siγ) 2006Yo05.

Jπ(level): Proposed by 2019Wo01 (23Al,nγ) (based on shell model calculations, spectroscopic factor and comparison with the states of mirror nuclius 24Ne), except where otherwise noted.

E(γ): From 9Be(26Si,24Siγ) 2006Yo05.

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Additional Gamma Data:











E(level)
(keV)		Jπ(level)T1/2(level)E(γ)
(keV)		MultipolarityAdditional Data
  1872 2+ 1.3 ps 4    1872 3 [E2]B(E2)(W.u.)=4.6 14

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     00+ 141.3 ms 15 
% ε = 100
% εp = 32.4 13
%ε+p: Weighted average of 33.3 16 (2011Ic06 - assuming 42.6 16 (2009Ic05, 2009Ic06) superseded by 2011Ic06, same research group), 31.3 13 (2016Su22, 2015Su15), 37.6 42 from (1997Cz02, 1998Cz01, 1999Bl08 - assuming reported two branches |>1.4 and |>1.3 are equal to the lower limit. The uncertainty is assumed based on the %εp (22Si)=32.0 36 in 1997Cz02). Other:.

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Additional Gamma Comments:

E(level)E(gamma)Comments
  1872  1872E(γ): Weighted average of 1860 10 (2006Yo05), 1870 6 (2020Lo05) both from (26Si,24Siγ) and 1874 3 from (23Al,nγ).
M(γ): Populated in Coulomb excitation (2002Ka80).
  3445  1573E(γ): Weighted average of 1550 12 (2006Yo05), 1569 7 (2020Lo05) both from (26Si,24Siγ) and 1575 3 from (23Al,nγ).
  3469  1597E(γ): From (23Al,nγ)

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