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17N (1993TI07)

(See Energy Level Diagrams for 17N)

GENERAL: See Table 2 preview 2 [Electromagnetic Transitions in A = 16-17] (in PDF or PS), Table 17.2 preview 17.2 [General Table] (in PDF or PS), Table 17.3 preview 17.3 [Table of Energy Levels] (in PDF or PS) and Table 17.4 preview 17.4 [Radiative transitions and lifetimes of 17N states] (in PDF or PS).

Theoretical papers and reviews:Energy spectra and wave functions of 17N are calculated and the results used to predict 18O(d, 3He)17N spectroscopic factors and electromagnetic transition rates (1989WA06). Self-consistent calculations of light nuclei including 17N are reviewed in (1990LO11). Production of 17N in heavy ion collisions is discussed in (1986HA1B, 1987RI03, 1987YA16, 1989VOZM). See also (1986AN07, 1986PO06, 1991SK02, 1992KW01, 1992WA22).

Experimental papers:Production of 17N in heavy ion collisions or multinucleon transfer in collisions of light nuclei are discussed in (1986BI1A, 1987AN1A, 1987AV1B, 1987SA25, 1987VI02, 1989CA25, 1989SA10, 1989YO02).

1. (a) 17N(β-)17O* → 16O + n Qm = 4.537
(b) 17N(β-)17O Qm = 8.680

The half-life of 17N is 4.173 ± 0.004 sec. The decay is principally [see Table 17.5 preview 17.5 (in PDF or PS)] to the neutron unbound states 17O*(4.55, 5.38, 5.94) [Jπ = 3/2-, 3/2-, 1/2-]. The nature of the decay is in agreement with Jπ = 1/2- for 17Ng.s.: see (1982AJ01). For a comparison of the 17N and 17Ne decays see Table 17.6 preview 17.6 (in PDF or PS). For GT transition rates see (1983SN03) and (1983RA29) and references in (1986AJ04). See also the recent analysis of GT β decay rates of (1993CH06).

2. 9Be(9Be, p)17N Qm = 7.534

See (1988LA25).

3. 11B(7Li, p)17N Qm = 8.415

Observed proton groups and γ-rays are displayed in Table 17.7 preview 17.7 (in PDF or PS). Table 17.4 preview 17.4 (in PDF or PS) shows branching ratio and lifetime measurements. Recent measurements of the cross section at Ec.m. = 1.45 - 6.10 are reported in (1990DA03).

4. 14C(6Li, 3He)17N Qm = -5.697

Angular distributions have been studied to 17N*(1.91, 2.53, 3.63, 4.01, 5.17) at E(6Li) = 34 MeV and the results compared with those for the analog reaction to 17O (reaction 20) (1983CU04).

5. 15N(t, p)17N Qm = -0.109

Observed proton groups are displayed in Table 17.8 preview 17.8 (in PDF or PS).

6. 18O(γ, p)17N Qm = -15.942

The giant resonance at Ex = 23.5 MeV decays to 17Ng.s. and to the first three excited states of 17N (1982BA03). See also 18O in (1983AJ01).

7. 18O(d, 3He)17N Qm = -10.448

Observed groups of 3He ions are displayed in Table 17.7 preview 17.7 (in PDF or PS). See also (1982AJ01) and 20F in (1983AJ01).

Shell-model calculations of energy spectra and wave functions for 17C and 17N are presented in (1989WA06), and the results are used to predict spectroscopic factors for this reaction. Arguments are given for Jπ assignments for states in 16N below neutron threshold.

8. 18O(t, α)17N Qm = 3.873

See Table 17.4 preview 17.4 (in PDF or PS) and Table 17.7 preview 17.7 (in PDF or PS).