Open Access

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

• An accurate measurement of the 140Ce(n,γ) energy-dependent cross-section was performed at the n_TOF facility at CERN. This cross-section is of great importance because it represents a bottleneck for the s-process nucleosynthesis and determines to a large extent the cerium abundance in stars. The measurement was motivated by the significant difference between the cerium abundance measured in globular clusters and the value predicted by theoretical stellar models. This discrepancy can be ascribed to an overestimation of the 140Ce capture cross-section due to a lack of accurate nuclear data. For this measurement, we used a sample of cerium oxide enriched in 140Ce to 99.4%. The experimental apparatus consisted of four deuterated benzene liquid scintillator detectors, which allowed us to overcome the difficulties present in the previous measurements, thanks to their very low neutron sensitivity. The accurate analysis of the p-wave resonances and the calculation of their average parameters are fundamental to improve the evaluation of the 140Ce Maxwellian-averaged cross-section.