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The nuclear physics input used to compute the Monte Carlo reaction rates and probability density functions that are tabulated in the second paper of this series (Paper II) is presented. Specifically, we publish the input files to the Monte…

Solar and Stellar Astrophysics · Physics 2015-05-18 Christian Iliadis , Richard Longland , Art Champagne , Alain Coc

The $^{92}$Mo($\alpha,n$)$^{95}$Ru, $^{94}$Mo($\alpha,n$)$^{97}$Ru, and $^{112}$Sn($\alpha,\gamma$)$^{116}$Te cross sections were measured at the upper end of the $p$-process Gamow window between 8.2 MeV and 11.1 MeV. Our results are…

Astrophysics · Physics 2008-12-18 W. Rapp , I. Dillmann , F. Käppeler , U. Giesen , H. Klein , T. Rauscher , D. Hentschel , S. Hilpp

Primary gamma-ray spectra for a wide excitation-energy range have been extracted for 44Ti from particle-gamma coincidence data of the 46Ti(p,t gamma)44Ti reaction. These spectra reveal information on the gamma-decay pattern of the nucleus,…

The rate coefficient formulae of unimolecular reactions are generalized to the systems with the power-law distributions based on nonextensive statistics, and the power-law rate coefficients are derived in the high and low pressure limits,…

Chemical Physics · Physics 2014-05-06 Cangtao Yin , Ran Guo , Jiulin Du

Linear response functions are calculated for symmetric nuclear matter of normal density by time-evolving two-time Green's functions with conserving self-energy insertions, thereby satisfying the energy-sum rule. Nucleons are regarded as…

Nuclear Theory · Physics 2013-11-20 H. S. Kohler , N. H. Kwong

The $^{22}$Ne($\alpha$, n)$^{25}$Mg and its competing channel $^{22}$Ne($\alpha$, $\gamma$)$^{26}$Mg has an major influence on neutron flux in weak s-process nucleosynthesis path in low mass AGB stars and massive stars of mass (M$\geq$…

Nuclear Theory · Physics 2023-04-21 Rajkumar Santra

The 37Ar(n_th,alpha)34S and 37Ar(n_th,p)37Cl reactions were studied at the high flux reactor of the ILL in Grenoble. For the 37Ar(n_th,alpha_0) and 37Ar(n_th,p) reaction cross sections, values of (1070+/-80)b and (37+/-4)b, respectively,…

Nuclear Experiment · Physics 2009-10-31 R. Bieber , C. Wagemans , G. Goeminne , J. Wagemans , B. Denecke , M. Loiselet , M. Gaelens , P. Geltenbort , H. Oberhummer

The theoretical description of the correlations between observables in two separated rapidity intervals for AA-interactions at high energies is presented. In the case with the realistic nucleon distribution density of colliding nuclei the…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. S. Kolevatov , V. V. Vechernin

Models of the r-process are sensitive to the production rate of 9Be because, in explosive environments rich in neutrons, alpha(alpha n,gamma)9Be is the primary mechanism for bridging the stability gaps at A=5 and A=8. The alpha(alpha…

Nuclear Experiment · Physics 2015-06-03 C. W. Arnold , T. B. Clegg , C. Iliadis , H. J. Karwowski , G. C. Rich , J. R. Tompkins , C. R. Howell

We present a theoretical study on formation rates of \eta and \omega meson-nucleus systems induced by (\gamma,p) reactions on nuclear targets at ideal recoilless condition. We find that the smaller distortion effect in the (\gamma,p)…

Nuclear Theory · Physics 2009-11-11 H. Nagahiro , D. Jido , S. Hirenzaki

In experiments on the electron linac LUE-40 of RDC "Accelerator" NSC KIPT, the flux-averaged cross-sections $\langle{\sigma(E_{\rm{\gamma max}})}\rangle_{\rm{exp}}$ of photonuclear reactions ${^{100}\rm{Mo}}(\gamma,n)^{99}\rm{Mo}$,…

The $^{12}$C$(\gamma,ppn)$ reaction has been measured for E$_{\gamma}$=150-800 MeV in the first study of this reaction in a target heavier than $^3$He. The experimental data are compared to a microscopic many body calculation. The model,…

Neutron capture reactions are the main contributors to the synthesis of the heavy elements through the s-process. Together with $^{13}$C($\alpha$,n)16O, which has recently been measured by the LUNA collaboration in an energy region inside…

Instrumentation and Detectors · Physics 2025-10-09 David Rapagnani , Chemseddine Ananna , Antonino Di Leva , Gianluca Imbriani , Matthias Junker , Marco Pignatari , Andreas Best

Proton-activation reactions on natural and enriched palladium samples were investigated via the activation technique in the energy range of E_p=2.75 MeV to 9 MeV, close to the upper end of the respective Gamow window of the gamma process.…

The thermonuclear $^{19}$F($p$,$\alpha_0$)$^{16}$O reaction rate in a temperature region of 0.007--10 GK has been derived by re-evaluating the available experimental data, together with the low-energy theoretical $R$-matrix extrapolations.…

Solar and Stellar Astrophysics · Physics 2018-01-17 J. J. He , I. Lombardo , D. Dell'Aquila , Y. Xu , L. Y. Zhang , W. P. Liu

The nuclear level densities and $\gamma$-ray strength functions of $^{138,139,140}$La were measured using the $^{139}$La($^{3}$He, $\alpha$), $^{139}$La($^{3}$He, $^{3}$He$^\prime$) and $^{139}$La(d, p) reactions. The particle-$\gamma$…

It has been suggested that a $\nu$p process can occur when hot, dense, and proton-rich matter is expanding within a strong flux of anti-neutrinos. In such an environment, proton-rich nuclides can be produced in sequences of proton captures…

Solar and Stellar Astrophysics · Physics 2019-09-02 N. Nishimura , T. Rauscher , R. Hirschi , G. Cescutti , A. St. J. Murphy , C. Fröhlich

Silicon synthesis in high-temperature hydrogen burning environments presents one possible avenue for the study of abundance anomalies in globular clusters. This was suggested in a previous study, which found that the large uncertainties…

Nuclear Experiment · Physics 2020-07-22 John Dermigny , Christian Iliadis , Art Champagne , Richard Longland

The cross sections of 70Ge(n,2n)69Ge, 72Ge(n,2n)71Ge, 76Ge(n,gamma)77(g+0.21m)Ge, 76Ge(n,2n)75Ge nuclear reactions were measured at the energy of neutrons 13.96(6) MeV by activation method with gamma-ray and X-ray spectra studies.

Nuclear Experiment · Physics 2007-05-23 S. V. Begun , O. G. Druzheruchenko , O. O. Pupirina , V. K. Tarakanov

Neutron capture by neutron-rich Li- and Be-isotopes plays a role in big--bang nucleosynthesis, especially in its inhomogeneous version and in the $\alpha$--process occurring in supernovae. New reaction rates for…

Nuclear Theory · Physics 2007-05-23 H. Herndl , R. Hofinger , P. Mohr , H. Oberhummer , T. Kajino , N. Terasawa