CERN Accelerating science

Article
Title First Results of the $^{140}$Ce(n,$\gamma$)$^{141}$Ce Cross-Section Measurement at n_TOF
Author(s)

Amaducci, Simone (INFN, LNS ; Catania U.) ; Colonna, Nicola (INFN, Bari) ; Cosentino, Luigi (INFN, LNS) ; Cristallo, Sergio (INFN, Perugia ; Collurania Teramo Observ.) ; Finocchiaro, Paolo (INFN, LNS) ; Krtička, Milan (Charles U.) ; Massimi, Cristian (INFN, Bologna ; U. Bologna, DIFA) ; Mastromarco, Mario (CERN) ; Mazzone, Annamaria (INFN, Bari ; CNR-IC, Bari) ; Mengoni, Alberto (ENEA, Bologna) ; Valenta, Stanislav (Charles U.) ; Aberle, Oliver (CERN) ; Alcayne, Victor (Madrid, CIEMAT) ; Andrzejewski, Józef (NCBJ, Lodz) ; Audouin, Laurent (Orsay, IPN) ; Babiano-Suarez, Victor (Valencia U., IFIC) ; Bacak, Michael (IRFU, Saclay ; CERN ; Vienna, Tech. U.) ; Barbagallo, Massimo (INFN, Bari ; CERN) ; Bennett, Samuel (Manchester U.) ; Berthoumieux, Eric (IRFU, Saclay) ; Billowes, Jon (Manchester U.) ; Bosnar, Damir (Zagreb U.) ; Brown, Adam (York U., England) ; Busso, Maurizio (INFN, Perugia ; Perugia U.) ; Caamaño, Manuel (Santiago de Compostela U.) ; Caballero-Ontanaya, Luis (Valencia U., IFIC) ; Calviño, Francisco (Barcelona, Polytechnic U.) ; Calviani, Marco (CERN) ; Cano-Ott, Daniel (Madrid, CIEMAT) ; Casanovas, Adria (Barcelona, Polytechnic U.) ; Cerutti, Francesco (CERN) ; Chiaveri, Enrico (CERN ; Manchester U.) ; Cortés, Guillem (Barcelona, Polytechnic U.) ; Cortés-Giraldo, Miguel (Seville U.) ; Damone, Lucia-Anna (INFN, Bari ; Bari U.) ; Davies, Paul-John (Manchester U.) ; Diakaki, Maria (CERN ; Natl. Tech. U., Athens) ; Dietz, Mirco (Edinburgh U.) ; Domingo-Pardo, Cesar (Valencia U., IFIC) ; Dressler, Rugard (PSI, Villigen) ; Ducasse, Quentin (Braunschweig, Phys. Tech. Bund.) ; Dupont, Emmeric (IRFU, Saclay) ; Durán, Ignacio (Santiago de Compostela U.) ; Eleme, Zinovia (Ioannina U.) ; Fernández-Domínguez, Beatriz (Santiago de Compostela U.) ; Ferrari, Alfredo (CERN) ; Furman, Valter (Dubna, JINR) ; Göbel, Kathrin (Goethe U., Frankfurt, Inst. Inform.) ; Garg, Ruchi (Edinburgh U.) ; Gawlik, Aleksandra (NCBJ, Lodz) ; Gilardoni, Simone (CERN) ; Gonçalves, Isabel (Lisbon, CFTP) ; González-Romero, Enrique (Madrid, CIEMAT) ; Guerrero, Carlos (Seville U.) ; Gunsing, Frank (IRFU, Saclay) ; Harada, Hideo (JAEA, Ibaraki) ; Heinitz, Stephan (PSI, Villigen) ; Heyse, Jan (Geel, JRC) ; Jenkins, David (York U., England) ; Junghans, Arnd (HZDR, Dresden) ; Käppeler, Franz (KIT, Karlsruhe) ; Kadi, Yacine (CERN) ; Kimura, Atsushi (JAEA, Ibaraki) ; Knapova, Ingrid (ENEA, Bologna) ; Kokkoris, Michael (Natl. Tech. U., Athens) ; Kopatch, Yuri (Dubna, JINR) ; Kurtulgil, Deniz (Goethe U., Frankfurt, Inst. Inform.) ; Ladarescu, Ion (Valencia U., IFIC) ; Lederer-Woods, Claudia (Edinburgh U.) ; Leeb, Helmut (Vienna, Tech. U.) ; Lerendegui-Marco, Jorge (Seville U.) ; Lonsdale, Sarah-Jane (Edinburgh U.) ; Macina, Daniela (CERN) ; Manna, Alice (INFN, Bologna ; U. Bologna, DIFA) ; Martínez, Trinitario (Madrid, CIEMAT) ; Masi, Alessandro (CERN) ; Mastinu, Pierfrancesco (INFN, Legnaro ; Padua U.) ; Maugeri, Emilio-Andrea (PSI, Villigen) ; Mendoza, Emilio (Madrid, CIEMAT) ; Michalopoulou, Veatriki (CERN ; Natl. Tech. U., Athens) ; Milazzo, Paolo (INFN, Trieste) ; Mingrone, Federica (CERN) ; Moreno-Soto, Javier (IRFU, Saclay) ; Musumarra, Agatino (INFN, LNS ; Catania U.) ; Negret, Alexandru (Bucharest, IFIN-HH) ; Ogállar, Francisco (Granada U., Theor. Phys. Astrophys.) ; Oprea, Andreea (Bucharest, IFIN-HH) ; Patronis, Nikolas (Ioannina U.) ; Pavlik, Andreas (Vienna U.) ; Perkowski, Jarosław (NCBJ, Lodz) ; Piersanti, Luciano (INFN, Perugia ; Collurania Teramo Observ.) ; Petrone, Cristina (Bucharest, IFIN-HH) ; Pirovano, Elisa (Braunschweig, Phys. Tech. Bund.) ; Porras, Ignacio (Granada U., Theor. Phys. Astrophys.) ; Praena, Javier (Granada U., Theor. Phys. Astrophys.) ; Quesada, José-Manuel (Seville U.) ; Ramos-Doval, Diego (Orsay, IPN) ; Rauscher, Thomas (Basel U. ; Hertfordshire U.) ; Reifarth, René (Goethe U., Frankfurt, Inst. Inform.) ; Rochman, Dimitri (PSI, Villigen) ; Rubbia, Carlo (CERN) ; Sabaté-Gilarte, Marta (CERN ; Seville U.) ; Saxena, Alok (Bhabha Atomic Res. Ctr.) ; Schillebeeckx, Peter (Geel, JRC) ; Schumann, Dorothea (PSI, Villigen) ; Sekhar, Adhitya (Manchester U.) ; Smith, Gavin (Manchester U.) ; Sosnin, Nikolay (Manchester U.) ; Sprung, Peter (PSI, Villigen) ; Stamatopoulos, Athanasios (Natl. Tech. U., Athens) ; Tagliente, Giuseppe (INFN, Bari) ; Tain, José (Valencia U., IFIC) ; Tarifeño-Saldivia, Ariel (Barcelona, Polytechnic U.) ; Tassan-Got, Laurent (Orsay, IPN ; CERN ; Natl. Tech. U., Athens) ; Thomas, Benedikt (Goethe U., Frankfurt, Inst. Inform.) ; Torres-Sánchez, Pablo (Granada U., Theor. Phys. Astrophys.) ; Tsinganis, Andrea (CERN) ; Ulrich, Jiri (PSI, Villigen) ; Urlass, Sebastian (CERN ; HZDR, Dresden) ; Vannini, Gianni (INFN, Bologna ; U. Bologna, DIFA) ; Variale, Vincenzo (INFN, Bari) ; Vaz, Pedro (Lisbon, CFTP) ; Ventura, Alberto (INFN, Bologna) ; Vescovi, Diego (INFN, Perugia ; Collurania Teramo Observ. ; GSSI, Aquila) ; Vlachoudis, Vasilis (CERN) ; Vlastou, Rosa (Natl. Tech. U., Athens) ; Wallner, Anton (Australian Natl. U., Canberra) ; Woods, PhilipJohn (Edinburgh U.) ; Wright, Tobias (Manchester U.) ; Žugec, Petar (Zagreb U.)

Publication 2021
Number of pages 11
In: Universe 7 (2021) 200
DOI 10.3390/universe7060200
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN PS ; nTOF
Abstract An accurate measurement of the $^{140}$Ce(n,$\gamma$) 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 $^{140}$Ce capture cross-section due to a lack of accurate nuclear data. For this measurement, we used a sample of cerium oxide enriched in $^{140}$Ce 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 $^{140}$Ce Maxwellian-averaged cross-section.
Copyright/License publication: © 2021-2024 The authors (License: CC-BY-3.0)

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 记录创建於2021-07-22,最後更新在2021-07-22


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