Measurement of the 91Zr(p, γ)92mNb cross section motivated by type Ia supernova nucleosynthesis. (14th September 2021)

• Record Type: Journal Article
• Authors: Gyürky, Gy; Halász, Z; Kiss, G G; Szücs, T; Huszánk, R; Török, Zs; Fülöp, Zs; Rauscher, T; Travaglio, C
• Is Part Of: Journal of physics. Volume 48:Number 10(2021)
• Publication Date: 2021-09-14
• Subjects: nuclear astrophysics -- explosive nucleosynthesis -- astrophysical p-process -- nuclear reactions -- cross section measurement -- activation method -- statistical model; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/1361-6471/ac2132
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: The synthesis of heavy, proton rich isotopes is a poorly understood astrophysical process. Thermonuclear (type Ia) supernova explosions are among the suggested sites and the abundance of some isotopes present in the early Solar System may be used to test the models. 92 Nb is such an isotope and one of the reactions playing a role in its synthesis is 91 Zr(p, γ ) 92 Nb. As no experimental cross sections were available for this reaction so far, nucleosynthesis models had to solely rely on theoretical calculations. In the present work the cross section of 91 Zr(p, γ ) 92 m Nb has been measured at astrophysical energies by activation. The results excellently confirm the predictions of cross sections and reaction rates for 91 Zr(p, γ ) 92 Nb, as used in astrophysical simulations.