[填空题]
(a) Can the reactions3-*jrb9ym;n8m;6sr(mowd9ipydy e tk8 1x m 8gt klvag p-(d:7d1aa74rqj drep0 g: $_{3}^{7}\text{Li} + \text{p} \to _{2}^{4}\text{He} + \alpha$ occur if the incident proton has kinetic energy = 2500 keV?
(b) If so, what is the total kinetic energy of the products? MeV