出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:This contribution gives an overview of the mass measurement programme at the JYFLTRAP Penning trap mass spectrometer for explosive hydrogen burning below A = 60. The proton-capture Q-values of 22Na(p,g )23Mg, 22Mg(p,g )23Al, 25Al(p,g )26Si, and 30P(p,g )31S important for modeling nucleosynthesis in ONe novae have been determined with sub-keV precision. In addition, the Qp,g value for 56Ni(p,g )57Cu essential for the modeling of the rp process has been measured directly. The new precise Qp,g values have an effect on the calculated reaction rates and decrease the uncertainties significantly.