Work

Modular apparatus for nuclear reactions spectroscopy (MARS): characterization and first application to determine $$^{12}$$C($$^6$$Li,$$^4$$He)$$^{14}\hbox {N}^{g.s}$$ nuclear reaction cross sections

Year: 2025

Type: article

Abstract: This work presents MARS (Modular apparatus for nuclear reactions spectroscopy) and its characterization prior to its first application to measure $$^6$$ 6 Li+ $$^{12}$$ 12 C nuclear reactions. Measurements were performed at the 3 MV tandem accelerator of the CNA (National Accelerator Center), in Seville, Spain. The $$^{6}$$ 6 Li projectiles were accelerated at energies around the $$^6$$ 6 Li+ $$^{12}$$ 12 C Coulomb barrier ( $$V^{\text {cm}}_{B}\sim 3.0$$ V B cm ∼ 3.0 MeV - center of mass and $$V^{\text {lab}}_{B}\sim 4.5$$ V B lab ∼ 4.5 MeV - laboratory frame). Using a $$^{6}\hbox {Li}^{2+}$$ 6 Li 2 + beam, we measured at 13 laboratory energies from 4.00 to 7.75 MeV. Thus, we present the excitation function of $$^{12}$$ 12 C( $$^6$$ 6 Li, $$^4$$ 4 He) $$^{14}\hbox {N}^{g.s.}$$ 14 N g . s . reaction, at 2 backward angles ( $$110.0^\circ $$ 110 . 0 ∘ and $$140.0^\circ $$ 140 . 0 ∘ ). The projectile dissociation, leading to this reaction, increases with the bombarding energies around the Coulomb barrier. This dissociation is favored at an optimum energy $$E_{b}^{\text {op}}$$ E b op $$\ge $$ ≥ $$V_{B}$$ V B +

Source: The European Physical Journal Plus

DOI: 10.1140/epjp/s13360-025-06305-0