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Related papers: $\mathbf{{}^{12}{C} + {}^{12}{C}}$ Fusion $\boldsy…

200 papers

We have measured the fusion cross sections of the 12C(13C, p)24Na reaction through off-line measurement of the beta-decay of 24Na using the beta-gamma coincidence method. Our new measurements in the energy range of Ec.m. = 2.6-3.0 MeV do…

Nuclear Experiment · Physics 2010-03-04 M. Notani , P. Davies , B. Bucher , X. Fang , L. Lamm , C. Ma , E. Martin , W. Tan , X. D. Tang , S. Thomas , C. L. Jiang

The $^{15}{\rm N}(p,\gamma)^{16}{\rm O}$ reaction provides a path from the CN cycle to the CNO bi-cycle and CNO tri-cycle. The measured astrophysical factor for this reaction is dominated by resonant capture through two strong…

Nuclear Experiment · Physics 2015-03-17 A. M. Mukhamedzhanov , M. La Cognata , V. Kroha

A cross section deficit phenomenon has been observed in $^{12}$C+$^{12}$C fusion reactions at astrophysical energies, at which fusion cross sections are suppressed in the off-resonance regions as compared to fusion cross sections for the…

Nuclear Theory · Physics 2025-04-03 K. Hagino

The astrophysical $s$-process is one of the two main processes forming elements heavier than iron. A key outstanding uncertainty surrounding $s$-process nucleosynthesis is the neutron flux generated by the ${}^{22}\mathrm{Ne}(\alpha,…

The $^{12}$C($\alpha,\gamma$)$^{16}$O reaction, an important component of stellar helium burning, plays a key role in nuclear astrophysics. It has direct impact on the evolution and final state of massive stars, while also influencing the…

Nuclear Experiment · Physics 2019-05-08 R. J. Holt , B. W. Filippone , Steven C. Pieper

One of the main neutron sources for the astrophysical s-process is the reaction 13C({\alpha},n)16O, taking place in thermally pulsing Asymptotic Giant Branch stars at temperatures around 90 MK. To model the nucleosynthesis during this…

Carbon fusion is important to understand the late stages in the evolution of a massive star. Astronomically interesting energy ranges for the 12C+12C reactions have been, however, poorly constrained by experiments. Theoretical studies on…

Solar and Stellar Astrophysics · Physics 2024-07-22 Gwangeon Seong , Yubin Kim , Kyujin Kwak , Sunghoon Ahn , Chaeyeon Park , Kevin Insik Hahn , Chunglee Kim

It is widely accepted that in molecular systems the nuclear interaction plays a negligible role, because of the strong Coulomb repulsion of the nuclei at small distances. We are going to show that this is not always true. The existence of…

Nuclear Theory · Physics 2008-02-03 V. B. Belyaev , A. K. Motovilov , W. Sandhas

Despite much effort in the past decades, the C-burning reaction rate is uncertain by several orders of magnitude, and the relative strength between the different channels 12C(12C,alpha)20Ne, 12C(12C,p)23Na and 12C(12C,n)23Mg is poorly…

Solar and Stellar Astrophysics · Physics 2012-12-18 M. Pignatari , R. Hirschi , M. Wiescher , R. Gallino , M. Bennett , M. Beard , C. Fryer , F. Herwig , G. Rockefeller , F. X. Timmes

We analyze thermonuclear and pycnonuclear fusion reactions in dense matter containing atomic nuclei of different types. We extend a phenomenological expression for the reaction rate, proposed recently by Gasques et al. (2005) for the…

Astrophysics · Physics 2009-11-11 D. G. Yakovlev , L. R. Gasques , M. Beard , M. Wiescher , A. V. Afanasjev

The astrophysical $S$-factor for the proton-proton fusion is calculated in the low-energy regime for a variety of nuclear interactions and consistent nuclear currents, derived within chiral effective field theory. We estimate, for the first…

Nuclear Theory · Physics 2026-03-27 Vittorio Barlucchi , Alex Gnech , Scilla Degl'Innocenti , Laura Elisa Marcucci

Fusion data for $^{48}$Ca+$^{96}$Zr are analyzed by coupled-channels calculations. Puzzling features of a previous analysis are eliminated by applying a potential that has a shallow pocket in the entrance channel. Thus the observed $S$…

Nuclear Theory · Physics 2009-07-09 H. Esbensen , C. L. Jiang

The $^{12}{\rm C}(\alpha,\gamma)^{16}$O reaction, determining the survival of carbon in red giants, is of interest for nuclear reaction theory and nuclear astrophysics. A specific feature of the $^{16}$O nuclear structure is the presence of…

The dinuclear system model incorporates several essential input physical quantities, including nuclear mass, fission barrier, shell correction energy, level density parameter, and shell damping factor, etc., which are derived from diverse…

Nuclear Theory · Physics 2026-04-13 Wei Zhang , Shi-Jie Zhang , Peng-Hui Chen

The nuclear fusion is a reaction to form a compound nucleus. It plays an important role in several circumstances in nuclear physics as well as in nuclear astrophysics, such as synthesis of superheavy elements and nucleosynthesis in stars.…

Nuclear Theory · Physics 2016-07-20 K. Hagino , N. Rowley , J. M. Yao

Fusion reactions with light nuclei play an essential role in understanding the energy production, the nucleosynthesis of chemical elements and the evolution of massive stars. The measurement of key fusion reactions at stellar energies is…

Nuclear Experiment · Physics 2025-10-10 S. Courtin , M. Heine , E. Monpribat , J. Nippert

The absolute cross section for the complete fusion and the total reaction cross section as a function of the charge of the heavy residue have been indirectly estimated for the reaction $^{18}$O+$^{12}$C at 16.7 MeV/nucleon. Data have been…

Nuclear Experiment · Physics 2022-07-20 Lucia Baldesi

The anomaly in lithium abundance is a well-known unresolved problem in nuclear astrophysics. A recent revisit to the problem tried the avenue of resonance enhancement to account for the primordial $^7$Li abundance in standard big-bang…

Nuclear Experiment · Physics 2022-06-30 Sk M. Ali , D. Gupta , K. Kundalia , Swapan K. Saha , O. Tengblad , J. D. Ovejas , A. Perea , I. Martel , J. Cederkall , J. Park , S. Szwec

The astrophysical S-factor for $^{16}$O + $^{16}$O is investigated within the adiabatic molecular picture. It very well explains the available experimental data. The collective radial mass causes a pronounced resonant structure in the…

Nuclear Theory · Physics 2009-01-22 Alexis Diaz-Torres , Leandro Romero Gasques , Michael Wiescher

The astrophysical $S$ factor for the radiative proton capture process on the $^{15}\mathrm{N}$ nucleus, i.e., $^{15}\mathrm{N}(p, \gamma)^{16}\mathrm{O}$, at stellar energies are studied within the framework of the cluster effective field…

Nuclear Theory · Physics 2024-01-31 Sangyeong Son , Shung-Ichi Ando , Yongseok Oh