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10C (84AJ01)(See Energy Level Diagrams for 10C) GENERAL: (See also (79AJ01).) and Table 10.19 [Table of Energy Levels] (in PDF or PS) here. Model calculations:(DE81DD, SA82F). Electromagnetic transitions:(RI82D). Astrophysical questions:(MO79A, RA79H). Complex reactions involving 10C:(BO79GG, MO81N). Reactions involving pions (See also reactions 2 and 6.):(AL79K, LI79M, LE80C, AU81A, CO82M, RO82A). Other topics:(NO79, NO80, DE82G, NG82). Mass of 10C: Based on Q0 for 10B(p, n)10C and 12C(p, t)10C and the Wapstra masses for n, t and 10B, the atomic mass excess of 10C is 15698.8 ± 0.5 keV.
10C decays with a half-life of 19.255 ± 0.053 sec to 10B*(0.7, 1.7): the branching ratios are (98.53 ± 0.02)% and (1.465 ± 0.014)%, respectively (RO72C): see reaction 41 in 10B.
Angular distributions of π- groups have been measured at Ep = 185 MeV (DA73F; to 10C*(0, 3.36, 5.28, 6.63)), at Ep = 200 MeV (SJ80B; 10Cg.s.) and at Ep = 800 MeV (HO79N; to 10C*(0, 3.35, 5.3, 6.6)). Ay measurements have been reported at Ep = 200 MeV (SJ80B; 10Cg.s.) and 200, 225 and 250 MeV (LO82; 10C*(0, 3.35, 5.28, 6.6)). See also (79AJ01, JO79A, ME79T, AU81A, BO81C, HO82C, NA82F).
See (RO82A).
The Ex of 10C*(3.35) = 3352.7 ± 1.5 keV, τm = 155 ± 25 fsec, Γγ = 4.25 ± 0.69 meV. Angular distributions have been measured for n0 and n1 groups and for the neutrons to 10C*(5.2 ± 0.3) at Ep = 30 and 50 MeV: see (74AJ01, 79AJ01).
Angular distributions have been measured at E(3He) = 14 MeV and 217 MeV: see (79AJ01). The latter [to 10C*(0, 3.35, 5.6)] have been compared with microscopic calculations using a central + tensor interaction [Jπ = 0+, 2+, 2+] (WI76A). Structures have been reported at Ex = 5.22 ± 0.04 [Γ = 225 ± 45 keV], 5.38 ± 0.07 [300 ± 60 keV] and 6.580 ± 0.020 MeV [190 ± 35 keV] (SC75). [It is not clear which of the 5.2 - 5.4 MeV states is the 2+ state studied by (WI76A).]
See (DO82).
Angular distributions have been reported at Ep = 30.0 to 54.1 MeV [see (74AJ01, 79AJ01)] and at Ep = 80 MeV (SH79E; t to 10C*(0, 3.35, 5.28). L = 0, 2 and 2 thus leading to 0+, 2+ and 2+ for these states [but note that the "5.28 MeV" states is certainly unresolved]: see reaction 5 and Table 10.19 (in PDF or PS). 10C*(6.6) is also populated. The excitation energy of 10C*(3.4) is 3353.3 ± 1.0 keV (BE74M), 3354.1 ± 1.1 keV (RO78F) [based on Qm]. See also (NO79, NO80) and (BE82T; theor.).
At E(3He) = 70.3 MeV the angular distributions of the
6He ions corresponding to the population of 10C*(0, 3.35)
have been measured. The group to 10C*(3.35) is much more intense
than the ground-state group: multi-step processes may be important
(KA73C). (DE76H) suggest,
on the basis of an FRDWBA analysis, that the process can be interpreted as a
direct-cluster transfer to both final states.
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