TUNL Nuclear Data
Evaluation Home Page

Information on mass
chains and nuclides
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
Group Info
General Tables
Level Diagrams
Tables of EL's
NSR Key# Retrieval
Excitation Functions
Thermal N Capt.
G.S. Decays
Half-Lives Table
TUNL Dissertations
NuDat at BNL
Useful Links
Citation Examples
Email Us



15B (1991AJ01)

(See the Isobar Diagram for 15B)

Mass of 15B: Wapstra adopts 28970 ± 22 keV (1988WA18, and private communication) and so do we: see (1986AJ01). 15B is then stable with respect to 14B + n by 2.77 MeV.

Decay of 15B: 15B decays by β- emission to 15C: Qβ- (max) = 19.10 MeV. The character of the decay is not known but measurements of the half-life are 11 ± 1 ms (1984DU15), 8.8 ± 0.6 ms (1986CU01), 10.4 ± 0.3 ms (1988MU08), 10.8 ± 0.5 ms (1988SA04), 10.3+0.6-0.5 ms (1989LE16). The weighted mean of these five values is 10.3 ± 0.2 ms. Omitting the low value from (1986CU01) gives 10.5 ± 0.3 ms, which we adopt.

Upper limits have been set on the P0n and P2n: 5% and 1.5%, respectively (1984DU15). See also (1989LE16).

General: (1985PO10) calculate [in a (0 + 1)ℏω model space] that the first four states of 15B at 0, 1.53, 2.06, 2.71 MeV have, respectively, Jπ = 3/2-, 5/2-, 1/2- and 7/2-.

Interaction cross sections at 790 MeV/A of 15B ions with Be, C and Al are reported by (1988TA10). The interaction radius and the r.m.s. radius for the nucleon distributions in 15B have also been derived (1988TA10). See also (1989SA10), (1986DU11, 1989DE52), (1986GU1D, 1988BAYZ, 1988MI1G, 1990LO10) and (1986AN07, 1989DO1K, 1989PO1K, 1989SI26, 1990RE04; theor.).