  Within the framework of the modified potential cluster model with a
classification of orbital states according to Young diagrams, the possibility
of prediction absentee experimental data for the total cross sections of the
radiative neutron capture on 11B to the first excited state 12B at 0.95 MeV
(2+) for reaction energy of 10 meV (1 meV = 10-3 eV) to 7 MeV. The reaction
rate in the temperature range of 0.01 to 10.0 T9 is calculated on the basis of
obtained cross sections, which take into account resonances up to 5 MeV. It is
shown that low-lying resonances exercise a significant influence to the capture
reaction rate. The approximation of the calculation reaction rate is carried
out by the simple analytic formula.
