ADOPTED LEVELS, GAMMAS for 27P

Author: M. Shamsuzzoha Basunia |  Citation: Nucl. Data Sheets 112, 1875 (2011) |  Cutoff date: 30-Nov-2010 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=-1.78×104 keV SYS(n)= 1.977×104 keV SYS(p)= 8.7×102 keV 3Q(α)= -9.90×103 keV 3
Reference: 2012WA38

References:
  A  27S β+ decay  B  9Be(28S,27PG)
  C  28Si(7Li,8He)  D  32S(3He,8Li)

General Comments:

2005Mo28 reported two excitation energies, 3095 keV and 3339 keV, in the preliminary analysis of 26Si+p elastic resonance.

2002Zh30, 2001Fa15, 2001Fa23: Evidence of a proton halo reported from measured interaction cross section of 27P with carbon, 2151(123) mb at 30 MeV/u, compared to a series of measured interaction cross sections.

1998Na34: Measured proton knockout reaction cross section of 27P on 9Be, 74(11) mb, and reported a 26Si ground state population cross section of 22(8) mb.

Q-value: Note: Current evaluation has used the following Q record

Q-value: ΔQ(β-)=400(syst), ΔS(n)=197(syst) (2011AuZZ)

Q-value: Q(β-)=-18260 200(syst), Q(α)=-9910 30 (2003Au03)









E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
I(γ)M(γ)
      0.0 BCD 1/2+ 260 ms 80 
% ε = 100
% β+p = 0.07
   
   1120 8  BC  (3/2+)     1120 8 
  100
(M1+E2)
   1625 19   CD      
   3453 22   C       
  12752 50 A         

E(level): From (7Li,8He), except otherwise noted

Jπ(level): From comparison of measured level population cross section in (28S,27Pγ) and shell model calculation.

T1/2(level): From 1985Ay02

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
      0.01/2+ 260 ms 80 
% ε = 100
% β+p = 0.07
+p from 1996Og01; other: 0.05 (1985Ay02).

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Additional Gamma Comments:

E(level)E(gamma)Comments
   1120   1120E(γ): From (28S,27Pγ)

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