Spectroscopic Study on Ca Using the Ca(d,t)Ca Reaction for Classical Nova Endpoint Nucleosynthesis

In classical novae simulations, the uncertainty in the reaction rate of $$^{ 38 }$$K(p,$$\gamma $$) has been shown to affect the abundances of endpoint nuclides significantly. To better understand the reaction rate, we have done a spectroscopic study on $$^{ 39 }$$Ca. The reaction $$^{ 40 }$$Ca(d,t)$$^{ 39 }$$Ca at a beam energy of 22 MeV was used to populate excited states of $$^{ 39 }$$Ca. Tritons were momentum analyzed using a high …