Neutron capture data on intermediate mass nuclei are of key importance to nucleosynthesis in the weak component of the slow neutron capture processes, which occurs in massive stars. The ($n,γ$) cross section on $^{70}$Ge, which is mainly produced in the $s$~process, was measured at the neutron time-of-flight facility n_TOF at CERN. Resonance capture kernels were determined up to 40~keV neutron energy, and average cross sections up to 300~keV. Stellar cross sections were calculated from $kT=5$~keV to $kT=100$ keV and are in very good agreement with a previous measurement by Walter and Beer (1985), and recent evaluations. Average cross sections are in agreement with Walter and Beer (1985) over most of the neutron energy range covered, while being systematically smaller for neutron energies above 150~keV. We have calculated isotopic abundances produced in $s$-process environments in a 25 solar mass star for two initial metallicities (below solar, and close to solar). While the low metallicity model reproduces best the solar system germanium isotopic abundances the close to solar model shows a good global match to solar system abundances between mass numbers A=60-80.
Machine learning based parametrization of the resolution function for the first experimental area (EAR1) of the n_TOF facility at CERN
University of Zagreb(萨格勒布大学);European Organization for Nuclear Research (CERN)(欧洲核子研究组织(CERN));STFC -- Rutherford Appleton Laboratory(STCF卢瑟福阿普尔顿实验室);University of Granada(格拉纳达大学)
Neutron capture cross section measurement of 238U at the n TOF CERN facility with C6D6 scintillation detectors in the energy region from 1 eV to 700 keV
The $^{7}$Be($\boldsymbol{n,p}$)$^{7}$Li reaction and the Cosmological Lithium Problem: measurement of the cross section in a wide energy range at n_TOF (CERN)
Universität Bonn(波恩大学);Helmholtz-Institut für Strahlen- und Kernphysik(亥姆霍兹射线与核物理研究所);University of Torino(都灵大学);Torino Section of INFN(意大利国家核物理研究院都灵分部);CERN(欧洲核子研究中心)
Energy-differential measurement of the $^{\mathrm{nat}}$C(n,p) and $^{\mathrm{nat}}$C(n,d) reactions at the n_TOF facility at CERN
University of Zagreb(萨格勒布大学);Istituto Nazionale di Fisica Nucleare, Sezione di Bari(意大利国家核物理研究所巴里分部);Paul Scherrer Institut (PSI)(保罗谢尔研究所);European Organization for Nuclear Research (CERN)(欧洲核子研究组织);University of Lodz(罗兹大学);Istituto Nazionale di Fisica Nucleare, Sezione di Bologna(意大利国家核物理研究所博洛尼亚分部);Universidad de Sevilla(塞维利亚大学);TU Wien, Atominstitut(维也纳工业大学原子研究所);CEA Irfu, Université Paris-Saclay(法国替代能源和原子能委员会伊夫林研究技术中心,巴黎-萨克雷大学);University of Manchester(曼彻斯特大学)
A high-voltage MR-ToF mass spectrometer and separator for the study of exotic isotopes at FRIB
Facility for Rare Isotope Beams(稀有同位素束设施);Michigan State University(密歇根州立大学);University of Edinburgh(爱丁堡大学);Lawrence Berkeley National Laboratory(劳伦斯伯克利国家实验室)
New measurement of $^{50}$Cr and $^{53}$Cr (n,$γ$) cross sections at n_TOF: a call for chromium nuclear data revision
Universidad de Sevilla(塞维利亚大学);Centro Nacional de Aceleradores (CNA)(国家加速器中心);Universitat Politècnica de Catalunya(加泰罗尼亚理工大学);Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)(能源、环境和技术研究中央中心);Instituto de Física Corpuscular, CSIC - Universidad de Valencia(瓦伦西亚大学-西班牙国家研究理事会粒子物理研究所);NAPC–Nuclear Data Section, International Atomic Energy Agency(国际原子能机构核数据处);European Organization for Nuclear Research (CERN)(欧洲核子研究组织);Istituto Nazionale di Fisica Nucleare, Sezione di Pavia(意大利国家核物理学院帕维亚分部);Department of Physics, University of Pavia(帕维亚大学物理系);INFN Laboratori Nazionali del Sud(意大利国家核物理学院南实验室)
Measurement of the $^{35}Cl(n, p)^{35}S$ cross-section at the CERN n\_TOF facility from subthermal energy to 120 keV
University of Granada(格拉纳达大学);European Organization for Nuclear Research (CERN)(欧洲核子研究组织(CERN));INFN Laboratori Nazionali del Sud(意大利国家核物理研究所南部分部实验室);University of Lodz(罗兹大学);Charles University(查理大学);University of Manchester(曼彻斯特大学);Department of Physics, Faculty of Science, University of Zagreb(萨格勒布大学理学院物理系);University of York(约克大学);University of Santiago de Compostela(圣地亚哥-德孔波斯特拉大学);National Technical University of Athens(雅典国立技术大学);School of Physics and Astronomy, University of Edinburgh(爱丁堡大学物理与天文学学院);University of Ioannina(约阿尼纳大学);Goethe University Frankfurt(法兰克福歌德大学);Horia Hulubei National Institute of Physics and Nuclear Engineering(霍里亚·胡卢贝伊国家物理与核工程研究所);European Commission, Joint Research Centre (JRC)(欧盟委员会联合研究中心(JRC));Karlsruhe Institute of Technology(卡尔斯鲁厄理工学院);University of Vienna, Faculty of Physics(维也纳大学物理学院);Department of Physics, University of Basel(巴塞尔大学物理系);Centre for Astrophysics Research, University of Hertfordshire(赫特福德大学天体物理研究中心);Bhabha Atomic Research Centre (BARC)(巴巴原子研究中心(BARC));Australian National University(澳大利亚国立大学)
Recoil Proton Telescopes and Parallel Plate Avalanche Counters for the $^{235}$U(n,f) cross section measurement relative to H(n,n)H between 10 and 450 MeV neutron energy
Constraining r-process nucleosynthesis via enhanced accuracy neutron-capture experiments
Instituto de Física Corpuscular, CSIC - Universitat de València(粒子物理研究所,西班牙科学理事会-瓦伦西亚大学);School of Physics and Astronomy, University of Edinburgh(爱丁堡大学物理与天文学学院);Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile (ENEA)(国家新技术、能源和可持续经济发展局);Istituto Nazionale di Fisica Nucleare, Sezione di Bologna(意大利国家核物理研究所博洛尼分所);European Organization for Nuclear Research (CERN)(欧洲核子研究组织)