Measurement of the 235U(n,f) cross section relative to the 10B(n,α) reaction with Micromegas detectors at the CERN n_TOF facility: First results

Autor: Michalopoulou Veatriki, Diakaki Maria, Vlastou Rosa, Kokkoris Michael, Stamatopoulos Athanasios, Tsinganis Andrea, Eleme Zinovia, Patronis Nikolas, Heyse Jan, Schillebeeckx Peter, Tassan-Got Laurent, Barbagallo Massimo, Colonna Nicola, Urlass Sebastian, Macina Daniela, Chiaveri Enrico, Aberle Oliver, Alcayne Victor, Amaducci Simone, Andrzejewski Józef, Audouin Laurent, Babiano-Suarez Victor, Bacak Michael, Bennett Samuel, Berthoumieux Eric, Billowes Jon, Bosnar Damir, Brown Adam, Busso Maurizio, Caamaño Manuel, Caballero-Ontanaya Luis, Calviño Francisco, Calviani Marco, Cano-Ott Daniel, Casanovas Adria, Cerutti Francesco, Cortés Guillem, Cortés-Giraldo Miguel, Cosentino Luigi, Cristallo Sergio, Damone Lucia-Anna, Davies Paul-John, Dietz Mirco, Domingo-Pardo César, Dressler Rugard, Ducasse Quentin, Dupont Emmeric, Durán Ignacio, Fernández-Domínguez Beatriz, Ferrari Alfredo, Finocchiaro Paolo, Göbel Kathrin, Garg Ruchi, Gawlik-Ramięga Aleksandra, Gilardoni Simone, Gonçalves Isabel, González-Romero Enrique, Guerrero Carlos, Gunsing Frank, Harada Hideo, Heinitz Stephan, Jenkins David, Junghans Arnd, Käppeler† Franz, Kadi Yacine, Kimura Atsushi, Knapová Ingrid, Krtička Milan, Kurtulgil Deniz, Ladarescu Ion, Lederer-Woods Claudia, Leeb Helmut, Lerendegui-Marco Jorge, Lonsdale Sarah-Jane, Manna Alice, Martínez Trinitario, Masi Alessandro, Massimi Cristian, Mastinu Pierfrancesco, Mastromarco Mario, Maugeri Emilio-Andrea, Mazzone Annamaria, Mendoza Emilio, Mengoni Alberto, Milazzo Paolo, Mingrone Federica, Moreno-Soto Javier, Musumarra Agatino, Negret Alexandru, Nolte Ralf, Ogállar Francisco, Oprea Andreea, Pavlik Andreas, Perkowski Jarosław, Piersanti Luciano, Petrone Cristina, Pirovano Elisa, Porras Ignacio, Praena Javier, Quesada José-Manuel, Ramos-Doval Diego, Rauscher Thomas, Reifarth René, Rochman Dimitri, Rubbia Carlo, Sabaté-Gilarte Marta, Saxena Alok, Schumann Dorothea, Sekhar Adhitya, Smith Gavin, Sosnin Nikolay, Sprung Peter, Tagliente Giuseppe, Tain José, Tarifeño-Saldivia Ariel, Thomas Benedikt, Torres-Sánchez Pablo, Ulrich Jiri, Valenta Stanislav, Vannini Gianni, Variale Vincenzo, Vaz Pedro, Ventura Alberto, Vescovi Diego, Vlachoudis Vasilis, Wallner Anton, Woods Philip-John, Wright Tobias, Žugec Petar

Publikováno v: EPJ Web of Conferences, Vol 284, p 01030 (2023)

Neutron cross section measurements are often made relative to a neutron cross section standard. Thus, the accuracy of the neutron standards determines the best possible accuracy of the neutron measurements. The 235U(n,f) cross section is widely used

Externí odkaz: https://doaj.org/article/5f59104300154ae68199dc8b36867a38

Type Ia SN progenitors: pre-explosion phase in nearly Chandrasekhar mass WDs

Autor: Domínguez Inma, Piersanti Luciano, Bravo Eduardo, Straniero Oscar, Cristallo Sergio

Publikováno v: EPJ Web of Conferences, Vol 260, p 06001 (2022)

Type Ia supernovae are used as distance indicators to measure the expansion rate of the Universe and to constrain the nature of dark energy. Current and upcoming surveys will allow to extend supernova Hubble diagrams to higher redshifts and to improv

Externí odkaz: https://doaj.org/article/7abaff3217ef4d14bd249fa1801212d9

Neutron-captures in Low Mass Stars and the Early Solar System Record of Short-lived Radioactivities

Autor: Busso Maurizio, Vescovi Diego, Trippella Oscar, Palmerini Sara, Cristallo Sergio, Piersanti Luciano

Publikováno v: EPJ Web of Conferences, Vol 165, p 02003 (2017)

Noticeable improvements were recently introduced in the modelling of n-capture nucleosynthesis in the advanced evolutionary stages of giant stars (Asymptotic Giant Branch, or AGB, stars). Two such improvements are closely linked together and concern

Externí odkaz: https://doaj.org/article/188309136fe24f73aa5cba65edb31d0d

On the mass and metallicity distribution of parent AGB stars of presolar SiC

Autor: Cristallo, Sergio, Nanni, Ambra, Cescutti, Gabriele, Minchev, Ivan, Liu, Nan, Vescovi, Diego, Gobrecht, David, Piersanti, Luciano

Publikováno v: A&A 644, A8 (2020)

The vast majority (>=90%) of presolar SiC grains identified in primitive meteorites are relics of ancient asymptotic giant branch (AGB) stars, whose ejecta were incorporated into the Solar System during its formation. Detailed characterization of the

Externí odkaz: http://arxiv.org/abs/2010.08268

A high-precision abundance analysis of the nuclear benchmark star HD 20

Autor: Hanke, Michael, Hansen, Camilla Juul, Ludwig, Hans-Günter, Cristallo, Sergio, McWilliam, Andrew, Grebel, Eva K., Piersanti, Luciano

Publikováno v: A&A 635, A104 (2020)

We present our chemical abundance investigation of the metal-poor ([Fe/H]=-1.60 dex), r-process-enriched ([Eu/Fe]=0.73 dex) halo star HD 20 using novel and archival high-resolution spectra at outstanding signal-to-noise ratios. By combining one of th

Externí odkaz: http://arxiv.org/abs/2001.11038