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Proton capture on $$^{90}$$Zr revisited

https://doi.org/10.1140/epja/s10050-025-01521-9

Simon, A; Koros, J; Olivas-Gomez, O; Kelmar, R; Churchman, E; Clark, A M; Harris, C; Henderson, S L; Kelly, S E; Millican, P; et al (March 2025, The European Physical Journal A)

Abstract The$$^{90}$$ $^{90}$ Zr(p,$$\gamma $$ $γ$ )$$^{91}$$ $^{91}$ Nb reaction is one of the important reactions in the$$A\approx 90$$ $A \approx 90$ mass region and part of the nucleosynthesis path responsible for production of$$^{92}$$ $^{92}$ Mo during the$$\gamma $$ $γ$ -process. Discrepant data in the literature provide a cross section that varies up to 30% within the Gamow window for the$$^{90}$$ $^{90}$ Zr(p,$$\gamma $$ $γ$ )$$^{91}$$ $^{91}$ Nb reaction. Thus, the cross section measurements of$$^{90}$$ $^{90}$ Zr(p,$$\gamma $$ $γ$ )$$^{91}$$ $^{91}$ Nb reaction were revisited using the$$\gamma $$ $γ$ -summing technique. The results are consistent with the lower-value cross sections found in the literature. Based on the new data an updated reaction rate for$$^{90}$$ $^{90}$ Zr(p,$$\gamma $$ $γ$ )$$^{91}$$ $^{91}$ Nb is provided that is up to 20% higher than that obtained from thenon-smokercode.
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Erratum: Searching for $(γ, α) / (γ, n)$ branching points in the $γ$ -process path near $A = 100$ [Phys. Rev. C 101 , 015801 (2020)]

https://doi.org/10.1103/PhysRevC.104.019901

Kelmar, R.; Simon, A.; Olivas-Gomez, O.; Millican, P.; Reingold, C. S.; Churchman, E.; Clark, A. M.; Henderson, S. L.; Kelly, S. E.; Robertson, D.; et al (July 2021, Physical Review C)
null (Ed.)
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Searching for ( $γ, α) / (γ, n$ ) branching points in the $γ$ -process path near $A = 100$

https://doi.org/10.1103/PhysRevC.101.015801

Kelmar, R.; Simon, A.; Olivas-Gomez, O.; Millican, P.; Reingold, C. S.; Churchman, E.; Clark, A. M.; Henderson, S. L.; Kelly, S. E.; Robertson, D.; et al (January 2020, Physical Review C)

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Measurements of proton capture in the $A = 100 – 110$ mass region: Constraints on the ${}^{111}{In} (γ, p) / (γ, n)$ branching point relevant to the $γ$ process

https://doi.org/10.1103/PhysRevC.102.055806

Olivas-Gomez, O.; Simon, A.; Gorton, O.; Escher, J. E.; Churchman, E.; Millican, P.; Kelmar, R.; Reingold, C. S.; Clark, A. M.; Cooper, N.; et al (November 2020, Physical Review C)
null (Ed.)
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