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The intermediate neutron capture process (i-process) operates at neutron densities between those of the slow and rapid neutron-capture processes. It can be triggered by the ingestion of protons in a convective helium-burning region. One…

Solar and Stellar Astrophysics · Physics 2022-11-30 A. Choplin , S. Goriely , L. Siess

It is well known that thermally pulsing Asymptotic Giant Branch stars with low mass play a relevant role in the chemical evolution. They have synthesized about 30% of the galactic carbon and provide an important contribution to the…

Solar and Stellar Astrophysics · Physics 2015-05-13 O. Straniero , S. Cristallo , R. Gallino

Neutron captures produce the vast majority of abundances of elements heavier than iron in the Universe. Beyond the classical slow (s) and rapid (r) processes, there is observational evidence for neutron-capture processes that operate at…

Solar and Stellar Astrophysics · Physics 2025-11-11 Maria Lugaro , Marco Pignatari , René Reifarth , Michael Wischer

This manual describes how to use the MatCHig code for matching the charged Higgs boson production processes gg->tbH+/- and gb->tH+/-. A negative term, correcting for the double-counting between these processes, is implemented as an external…

High Energy Physics - Phenomenology · Physics 2007-05-23 Johan Alwall

Integer partitions may be encoded as either ascending or descending compositions for the purposes of systematic generation. Many algorithms exist to generate all descending compositions, yet none have previously been published to generate…

Data Structures and Algorithms · Computer Science 2014-05-05 Jerome Kelleher , Barry O'Sullivan

Magnetorotational supernovae are a rare type of core-collapse supernovae where the magnetic field and rotation play a central role in the dynamics of the explosion. We present the post-processed nucleosynthesis of state-of-the-art…

High Energy Astrophysical Phenomena · Physics 2022-11-30 Moritz Reichert , Martin Obergaulinger , Miguel-Angel Aloy , Michael Gabler , Almudena Arcones , Friedrich-Karl Thielemann

Small Angle Scattering (SAS) of X-rays or neutrons is an experimental technique that provides valuable structural information for biological macromolecules under physiological conditions and with no limitation on the molecular size. In…

Biomolecules · Quantitative Biology 2013-06-11 Konstantin Berlin , Nail A. Gumerov , Ramani Duraiswami , David Fushman

Precise analysis of nanoparticles for characterization in electron microscopy images is essential for advancing nanomaterial development. Yet it remains challenging due to the time-consuming nature of manual methods and the shortcomings of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Anindya Pal , Varun Ajith , Saumik Bhattacharya , Sayantari Ghosh

We present a detailed study of s-process nucleosynthesis in massive stars of solar-like initial composition and masses 15, 20,25, and 30 Msun. We update our previous results of s-process nucleosynthesis during the core He-burning of these…

Astrophysics · Physics 2008-11-26 Lih-Sin The , Mounib F. El Eid , Bradley S. Meyer

In this paper we present the evolution of a low mass model (initial mass M=1.5 Msun) with a very low metal content (Z=5x10^{-5}, equivalent to [Fe/H]=-2.44). We find that, at the beginning of the AGB phase, protons are ingested from the…

Solar and Stellar Astrophysics · Physics 2015-05-13 S. Cristallo , L. Piersanti , O. Straniero , R. Gallino , I. Dominguez , F. Kappeler

We report the discovery of a trend of increasing barium abundance with decreasing age for a large sample of Galactic open clusters. The observed pattern of [Ba/Fe] vs. age can be reproduced with a Galactic chemical evolution model only…

Solar and Stellar Astrophysics · Physics 2009-11-13 Valentina D'Orazi , Laura Magrini , Sofia Randich , Daniele Galli , Maurizio Busso , Paola Sestito

We present and show the features of the FRUITY database, an interactive web-based interface devoted to the nucleosynthesis in AGB stars. We describe the current available set of AGB models (largely expanded with respect to the original one)…

Solar and Stellar Astrophysics · Physics 2016-02-02 S. Cristallo , L. Piersanti , O. Straniero

The multigroup neutron transport equations has been widely used to study the interactions of neutrons with their background materials in nuclear reactors. High-resolution simulations of the multigroup neutron transport equations using…

Numerical Analysis · Mathematics 2019-06-20 Fande Kong , Yaqi Wang , Derek R. Gaston , Alexander D. Lindsay , Cody J. Permann , Richard C. Martineau

Heavy elements are formed in nucleosynthesis processes. Abundances of these elements can be classified as elemental abundance, isotopic abundance, and abundance of nuclei. In this work we propose to change nucleon identification from the…

Nuclear Experiment · Physics 2015-02-25 Miklos Kiss

We present minimalist constructions for lepton masses and mixing based on flavour symmetry under the modular group $\Gamma_N$ of lowest level $N=2$. As opposed to the only existing model of $\Gamma_2\cong S_3$ formulated in a SUSY…

High Energy Physics - Phenomenology · Physics 2023-09-11 Davide Meloni , Matteo Parriciatu

While recent work towards the development of tight-binding and ab-initio algorithms has focused on molecular dynamics, Monte Carlo methods can often lead to better results with relatively little effort. We present here a multi-step Monte…

Statistical Mechanics · Physics 2009-10-31 Parthapratim Biswas , G. T. Barkema , Normand Mousseau , W. F. van der Weg

We present an extended version of GLISSANDO, a Monte-Carlo generator for Glauber-like models of the initial stage of relativistic heavy-ion collisions. The increased functionality of the code incorporates a parametrization of shape of…

Nuclear Theory · Physics 2014-05-22 Maciej Rybczynski , Grzegorz Stefanek , Wojciech Broniowski , Piotr Bozek

The p-process nucleosynthesis can explain proton-rich isotopes that are heavier than iron, which are observed in the Solar System, but discrepancies still persist and important questions concerning the astrophysical site(s) of the p-process…

Solar and Stellar Astrophysics · Physics 2022-05-11 A. Choplin , S. Goriely , R. Hirschi , N. Tominaga , G. Meynet

The structural and nucleosynthetic evolution of 3, 4, 5, 6 and \mass{7} stars with two metallicities ($Z = 0.005$ and 0.02) has been computed in detail, from the early pre-main sequence phase up to the thermally pulsing (TP) AGB phase or…

Astrophysics · Physics 2018-06-27 Manuel Forestini , Corinne Charbonnel

In this paper we discuss the impact of the s-process nucleosynthesis in Asymptotic Giant Branch stars on the enrichment of heavy elements. We review the main steps made on this subject in the last 40 years and discuss the importance of…

Astrophysics of Galaxies · Physics 2025-10-03 Gabriele Cescutti , Francesca Matteucci