AN INVESTIGATION OF THE J^π=l⁺; T=l STATES IN ⁴⁰Ca WITH THE (p,γ) REACTION

In order to explore the J^π=l⁺;T=l states in ⁴⁰Ca between 11.0 and 12.0MeVJ which have been predicted recently, the measurements of the ³⁹K(p,γ)⁴⁰Ca reaction have been taken. Nine resonances appeared in the region E_p=2.7-3.8MeVJ and six of them corresponding to E_p =2749, 3085, 3135, 3202, 3417 and 3708ke were observed for the first time with the (p,γ) reaction. The spin, parity and isospin of the 11.083MeV state in ⁴⁰Ca are determined to be J^π=l+; T=l . The M1 transition strength B(M1) of this state from the ground state is 0.24μ²₀;. The result is qualitatively in agreement with the the oretical prediction.