Evaluated spectroscopic data and level schemes from radioactive decay and nuclear reaction studies are presented for 26 O, 26 F, 26 Ne, 26 Na, 26 Mg, 26 Al, 26 Si, 26 P, and 26 S. This evaluation for A=26 supersedes the earlier one by P. M. Endt (1998En04) and updates for some nuclides in ENSDF. Highlights of this evaluation are the following: This evaluation includes search results for 26 S nuclide and its proton-decay mode (2011Fo08). An isomeric state (2.2 ms) in 26 F has been discovered by 2013Le03. The state is proposed at 643.4 keV 1 from γ-ray measurements. Internal-transition and beta-decay branches for the state are also determined. New excited levels in 26 Ne have been identified from 26 F βdecay (2.2 ms). For some 26 Si resonance states conflicting spin-parity assignments exist in the literature. These are identified by footnotes. 2015Do07 (3 He,nγ) propose the first 0+ state above proton separation energy at an excitation energy of 5890 keV and suggested for additional independent measurements to confirm or refute the existence of 5946 keV 4. 2016Ch09 consider 5946 keV level as a distinct excited state in their reanalysis of the literature data with possible spin-parity assignment of 0+ or 4+ This evaluation also includes discovery of an isomeric state, at 164.1 keV 1, in 26 P by 2014NiZZ.

A b s t r a c t : E v a l u a t e d s p e c t r o s c o p i c d a t a a n d l e v e l s c h e m e s f r o m r a d i o a c t i v e d e c a y a n d n u c l e a r r e a c t i o n s t u d i e s are presented for . This evaluation for A=22 supersedes the earlier one by R. B. Firestone (2005Fi16). Cutoff Date: All data received by April 1, 2015 have been evaluated. The NSR database (2014Pr09) (www.nndc.bnl. gov/nsr/) was the main source of bibliography during this evaluation. General Policies and Organization of Material: see http://www.nndc.bnl.gov/nds/NDSPolicies.pdf. Acknowledgments: This evaluation is benefited from earlier evaluations by R. B. Firestone (2005Fi16) and P. M. E n d t ( 1 9 9 8 E n 0 4 , 1 9 9 0 E n 0 8 , 1 9 7 8 E n 0 2 ) . E v a l u a t o r i s t h a n k f u l t o t h e c o m p i l e r s o f X U N D L d a t a s e t s f o r i n i t i a l e n t r y f r o m r e f e r e n c e s ( c o m p i l e r s ) : 2 0 0 4 C o (MacMaster) and 2009Ma68 (K. Abusaleem (U. of Jordan) and B. Singh ( M c M a s t e r ) ) . A l s o t h e e v a l u a t o r i s g r a t e f u l t o t h e r e v i e w e r f o r c o n s t r u c t i v e c o m m e n t s a n d s u g g e s t i o n s a n d also thankful to E.A. McCutchan for a thorough editorial review.

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A new experimental technique is presented using proton-γ-γ correlations from (94)Mo(d,p)(95)Mo reactions which allows for the model-independent extraction of the photon strength function at various excitation energies using primary γ-ray decay from the quasicontinuum to individual low-lying levels. Detected particle energies provide the entrance excitation energies into the residual nucleus while γ-ray transitions from low-lying levels specify the discrete states being fed. Results strongly support the existence of the previously reported low-energy enhancement in the photon strength function.

The lifetime of the 2_+(1) state in 16C has been measured with the recoil distance method using the 9Be(9Be,2p) fusion-evaporation reaction at a beam energy of 40 MeV. The mean lifetime was measured to be 11.7(20) ps corresponding to a B(E2;2_+(1)-->0+) value of 4.15(73)e_2 fm_4 [1.73(30) W.u.], consistent with other even-even closed shell nuclei. Our result does not support an interpretation for "decoupled" valence neutrons.