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The dynamics of nucleon transfer processes in heavy-ion collisions is investigated within the dinuclear system model. The production cross sections of nuclei in the reactions $^{136}$Xe+$^{208}$Pb and $^{238}$U+$^{248}$Cm are calculated and…

Nuclear Theory · Physics 2015-03-17 Long Zhu , Zhao-Qing Feng , Feng-Shou Zhang

The cross sections of the nuclear reactions induced by neutrons at $E_n$= 14.6 MeV on the isotopes of Dy, Er, Yb with emission of neutrons, proton and alpha-particle are studied by the use of new experimental data and different theoretical…

We explore the dependence of pre-supernova evolution and supernova nucleosynthesis yields on the uncertainties in helium burning reaction rates. Using the revised solar abundances of Lodders (2003) for the initial stellar composition,…

Astrophysics · Physics 2009-11-13 Clarisse Tur , Alexander Heger , Sam M. Austin

Differential and angle-integrated cross sections for the $^{10}$B($n, {\alpha}$)$^{7}$Li, $^{10}$B($n, {\alpha}$$_{0}$)$^{7}$Li and $^{10}$B($n, {\alpha}$$_{1}$)$^{7}$Li$^{*}$ reactions have been measured at CSNS Back-n white neutron…

Ultra-high energy ($E_\nu>10^8 $ GeV) neutrino-nucleon total cross sections $\sigma^{\nu N}$ are estimated from a soft non-perturbative model complemented by an approximate QCD evolution, explicitly calculated. The resulting asymptotic…

High Energy Physics - Phenomenology · Physics 2014-11-17 R. Fiore , L. L. Jenkovszky , A. Kotikov , F. Paccanoni , A. Papa , E. Predazzi

In this paper, the results of measurements of the total cross sections for the reactions $^{10,11,12}$Be+$^{28}$Si and $^{14}$B+$^{28}$Si in the beam energy range $13A$--$47A$ MeV are presented. The experimental cross sections were obtained…

Nuclear Experiment · Physics 2023-11-13 Yu. G. Sobolev , S. S. Stukalov , Yu. E. Penionzhkevich , M. A. Naumenko , V. V. Samarin

The physics of neutrino-nucleus cross sections is a critical probe of the Standard Model and beyond. A precise understanding is also needed to accurately deduce astrophysical neutrino spectra. At energies above $\sim 5$ GeV, the cross…

High Energy Physics - Phenomenology · Physics 2020-02-20 Bei Zhou , John F. Beacom

We extend the virial equation of state to include 3H and 3He nuclei, and predict significant mass-three fractions near the neutrinosphere in supernovae. While alpha particles are often more abundant, we demonstrate that energy transfer…

Nuclear Theory · Physics 2008-11-26 E. O'Connor , D. Gazit , C. J. Horowitz , A. Schwenk , N. Barnea

We report new calculations of the cross sections for deeply inelastic neutrino-nucleon scattering at neutrino energies between $10^{9}\ev$ and $10^{21}\ev$. We compare with results in the literature and assess the reliability of our…

High Energy Physics - Phenomenology · Physics 2009-05-05 Raj Gandhi , Chris Quigg , Mary Hall Reno , Ina Sarcevic

We examine a potential role of the neutrino deuteron reactions in the mechanism of supernova explosion by evaluating the energy transfer cross section for the neutrino heating. We calculate the energy loss rate due to the neutrino…

Nuclear Theory · Physics 2009-11-06 S. X. Nakamura , K. Sumiyoshi , T. Sato

An ab-initio calculation of the inelastic neutral reaction of neutrino on 4He is presented, including realistic nuclear force and full final state interaction among the four nucleons. The calculation uses the powerful combintation of the…

Nuclear Theory · Physics 2009-11-10 Doron Gazit , Nir Barnea

We study the nucleosynthesis in a core-collapse supernova model including newly calculated neutrino-induced reaction rates with both collective and Mikheyev-Smirnov-Wolfenstein (MSW) neutrino-flavor oscillations considered. We show that the…

Hypernuclei are bound states of hyperons (Y) and nucleons (N). Measurements on their yields can help us investigate their production mechanisms. In particular, the ${}^5_{\Lambda}$He and $^{4}_{\Lambda}$H(e) are substantially tighter bound…

Nuclear Experiment · Physics 2025-11-18 Yingjie Zhou

Nuclear reaction rate ($\lambda$) is a significant factor in the process of nucleosynthesis. A multi-layer directed-weighted nuclear reaction network in which the reaction rate as the weight, and neutron, proton, $^4$He and the remainder…

Nuclear Theory · Physics 2020-10-13 H. L. Liu , D. D. Han , P. Ji , Y. G. Ma

We present new nucleosynthesis yields as functions of the stellar mass, metallicity, and explosion energy (corresponding to normal supernovae and Hypernovae). We apply the results to the chemical evolution of the solar neighborhood. Our new…

Astrophysics · Physics 2011-05-05 Ken'ichi Nomoto , Nozomu Tominaga , Hideyuki Umeda , Chiaki Kobayashi , Keiichi Maeda

Neutrino-nucleus reaction cross sections on 18O are evaluated by shell-model calculations and compared with those on 16O. Important contributions from Gamow-Teller transitions are noticed for 18O (\nu_e, e^{-})18F in contrary to the case…

Nuclear Theory · Physics 2023-08-09 Toshio Suzuki , Ken'ichiro Nakazato , Makoto Sakuda

We present neutrino capture cross sections on 13C at supernova neutrino energies, up to 50 MeV. For both charged-current and neutral-current reactions partial cross sections are calculated using statistical Hauser-Feschbach method. Coherent…

Nuclear Theory · Physics 2019-09-04 T. Suzuki , A. B. Balantekin , T. Kajino , S. Chiba

We study the neutral-current neutrino scattering for four nuclei in the iron region. We evaluate the cross sections for the relevant temperatures during the supernova core collapse and derive Gamow-Teller distributions from large-scale…

Nuclear Theory · Physics 2009-11-07 J. M. Sampaio , K. Langanke , G. Martinez-Pinedo , D. J. Dean

Two new facilities have recently been proposed to measure low energy neutrino-nucleus cross sections, the nu-SNS (Spallation Neutron Source) and low energy beta beams. The former produces neutrinos by pion decay at rest, while the latter…

Nuclear Theory · Physics 2009-11-10 G. C. McLaughlin

Neutron total reaction cross sections at 45, 50, 55, 60, 65, and 75 MeV from nuclei 12C, 28Si, 56Fe, 90Zr, and 208Pb have been measured and are compared with (microscopic) optical model predictions. The optical potentials were obtained in…

Nuclear Theory · Physics 2009-11-07 K. Amos , S. Karataglidis