Astrophysical aspects of ¹²C(p,γ)¹³N reaction

2024/05/30 by Soumya Saha, Saha, Soumya
Medicine · Physics and Astronomy · #FOS: Physical sciences #Medical Imaging Techniques and Applications #Nuclear Theory (nucl-th) #Nuclear physics research studies #Radiation Therapy and Dosimetry #Solar and Stellar Astrophysics (astro-ph.SR)

paper · pdf · doi:10.48550/arxiv.2405.20223

openalex publication_date 2024/05/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The Carbon-Nitrogen-Oxygen (CNO) cycle is fundamental to the process of hydrogen burning in stars, serving as a pivotal mechanism. At its core, the primary reaction involves the radiative capture of a proton by ¹²C, crucially influencing the isotopic ratio of ¹²C to ¹³C observed in celestial bodies, including our Solar System. We have addressed this reaction mechanism by extrapolating to low-energy cross sections and S-factors with the aid of astrophysical R-matrix. Our investigation aims to shed light on its implications for nuclear reaction rates, thus influencing the abundance ratio of ¹²C to ¹³C in the cosmic environment.

Related

• Astrophysical S factor and reaction rate of the direct ¹²\rm C(p, γ)¹³\rm N capture process within a potential model approach
• A Comparative Analysis of R-Matrix Fitting: ¹²C(p,γ)¹³N as Test Case
• Improved S-factor of the ¹³C(p,γ)¹⁴N reaction at E_p = 330-740 keV and parameters of resonances at 448 keV and 551 keV
• The nuclear processes responsible for the CNO synthesis
• The effect of 12C + 12C rate uncertainties on the weak s-process\n component