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Transport calculations for neutronic design require accurate nuclear data and validated computational tools. In the Spallation Physics Group, at the European Spallation Source, we perform shielding and neutron beam calculations to help the…

Instrumentation and Detectors · Physics 2021-03-11 Jose Ignacio Marquez Damian , Douglas D. DiJulio , Günter Muhrer

Nuclear physics has been playing an important role in modern astrophysics and cosmology. Since the early 1950's it has been successfully applied for the interpretation and prediction of astrophysical phenomena. Nuclear physics models helped…

Instrumentation and Methods for Astrophysics · Physics 2016-08-03 Boris Pritychenko

Providing reliable data on the properties of atomic nuclei and infinite nuclear matter to astrophysical applications remains extremely challenging, especially when treating both properties coherently within the same framework. Methods based…

We update the Big Bang Nucleosynthesis (BBN) calculations on the basis of the recent NACRE compilation of reaction rates. In particular, we calculate the uncertainties related to the nuclear reaction rates on the abundances of 7Li and…

Astrophysics · Physics 2016-11-03 Alain Coc , Elisabeth Vangioni-Flam , Michel Casse

The Facility for Rare Isotope Beams (FRIB) will be a world-leading laboratory for the study of nuclear structure, reactions and astrophysics. Experiments with intense beams of rare isotopes produced at FRIB will guide us toward a…

Fundamental atomic parameters, such as oscillator strengths, play a key role in modelling and understanding the chemical composition of stars in the universe. Despite the significant work underway to produce these parameters for many…

Solar and Stellar Astrophysics · Physics 2018-04-25 Mike Laverick , Alex Lobel , Thibault Merle , Pierre Royer , Christophe Martayan , Marc David , Herman Hensberge , Emmanuel Thienpont

A realistic and detailed description of neutrinos in binary neutron star (BNS) mergers is essential to build reliable models of such systems. To this end, we present BNS_NURATES, a novel open-source numerical library designed for the…

High Energy Astrophysical Phenomena · Physics 2025-03-20 Leonardo Chiesa , Maitraya Bhattacharyya , Filippo Mazzini , Federico Maria Guercilena , Albino Perego , David Radice

Nuclear reaction rates of astrophysical applications are traditionally determined on the basis of Hauser-Feshbach reaction codes. These codes adopt a number of approximations that have never been tested, such as a simplified width…

Astrophysics · Physics 2015-05-13 S. Goriely , S. Hilaire , A. J. Koning

Systematic comparisons across theoretical predictions for the properties of dense matter, nuclear physics data, and astrophysical observations (also called meta-analyses) are performed. Existing predictions for symmetric nuclear and neutron…

Multi-messenger astrophysics will enable the discovery of new astrophysical neutrino sources and provide information about the mechanisms that drive these objects. We present a curated online catalog of astrophysical neutrino candidates.…

High Energy Astrophysical Phenomena · Physics 2019-08-16 Chujie Chen , Charles Cardot

We investigate both the systematic and statistical uncertainties associated with theoretical nuclear reaction rates of relevance during the i-process and explore their impact on the i-process elemental production, and subsequently on the…

Solar and Stellar Astrophysics · Physics 2023-10-16 S. Martinet , A. Choplin , S. Goriely , L. Siess

Almost all of the elements heavier than hydrogen that are present in our solar system were produced by nuclear burning processes either in the early universe or at some point in the life cycle of stars. In all of these environments, there…

High Energy Astrophysical Phenomena · Physics 2018-01-09 Jonas Lippuner , Luke F. Roberts

The IceCube Neutrino Observatory opened the window on neutrino astronomy by discovering high-energy astrophysical neutrinos in 2013 and identifying the first compelling astrophysical neutrino source, the blazar TXS0506+056, in 2017. In this…

High Energy Astrophysical Phenomena · Physics 2021-11-17 Brian Clark

We present a new numerical tool designed to probe the dense layers of neutron star crusts. It is based on the time-dependent Hartree-Fock-Bogoliubov theory with generalized Skyrme nuclear energy-density functionals of the Brussels-Montreal…

Nuclear Theory · Physics 2024-12-05 Daniel Pȩcak , Agata Zdanowicz , Nicolas Chamel , Piotr Magierski , Gabriel Wlazłowski

Properties of atomic nuclei important for the prediction of astrophysical reaction rates are reviewed. In the first part, a recent simulation of evolution and nucleosynthesis of stars between 15 and 25 solar masses is presented. This study…

Astrophysics · Physics 2009-11-07 T. Rauscher

The nuclear astrophysics setup at the Institute for Nuclear Physics, University of Cologne, Germany is dedicated to measurements of total and partial cross sections of charged-particle induced reactions at astrophysically relevant energies.…

Nuclear Experiment · Physics 2020-07-28 F. Heim , J. Mayer , M. Müller , P. Scholz , M. Weinert , A. Zilges

Big Bang Nucleosynthesis (BBN) relates key cosmological parameters to the primordial abundance of light elements. In this paper, we point out that the recent observations of Cosmic Microwave Background anisotropies by the Planck satellite…

Cosmology and Nongalactic Astrophysics · Physics 2014-08-06 Eleonora Di Valentino , Carlo Gustavino , Julien Lesgourgues , Gianpiero Mangano , Alessandro Melchiorri , Gennaro Miele , Ofelia Pisanti

Nucleosynthesis in evolved (RGB and AGB) low-mass stars is reviewed under the light of the reaction rates recommended in the NACRE compilation (Angulo et al. 1999). We use a parametric model of stellar nucleosynthesis to investigate the…

Astrophysics · Physics 2007-05-23 A. Palacios , F. Leroy , C. Charbonnel , M. Forestini

The recent association between IC-170922A and the blazar TXS0506+056 highlights the importance of real-time observations for identifying possible astrophysical neutrino sources. Thanks to its near-100\% duty cycle, 4$\pi$ steradian field of…

High Energy Astrophysical Phenomena · Physics 2019-09-13 Kevin Meagher , Alex Pizzuto , Justin Vandenbroucke

The $p$ process nucleosynthesis is responsible for the synthesis of 35 neutron-deficient nuclei from $^{35}$Se to $^{196}$Hg. An important input that can affect the modeling of this process is the nuclear level density at the relevant…

Nuclear Theory · Physics 2024-02-20 A. Chalil , C. Ducoin , O. Stézowski , N. Millard-Pinard , J. Dudouet , Y. Demane , M. Chamseddine