Measurement of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Ce</mml:mi></mml:mrow><mml:mprescripts/><mml:none/><mml:mrow><mml:mn>140</mml:mn></mml:mrow></mml:mmultiscripts><mml:mo stretchy="false">(</mml:mo><mml:mi mathvariant="normal">n</mml:mi><mml:mo>,</mml:mo><mml:mi>γ</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:math> Cross Section at n_TOF and Its Astrophysical Implications for the Chemical Evolution of the Universe-Reference-Cited by-同舟云学术

Measurement of the Ce140(n,γ) Cross Section at n_TOF and Its Astrophysical Implications for the Chemical Evolution of the Universe

Published:2024-03-21 Issue:12 Volume:132 Page:
ISSN:0031-9007
Container-title:Physical Review Letters
language:en
Short-container-title:Phys. Rev. Lett.

Author:

Amaducci S.¹^ORCID,Colonna N.²,Cosentino L.¹,Cristallo S.³⁴,Finocchiaro P.¹,Krtička M.⁵,Massimi C.⁶⁷,Mastromarco M.⁸,Mazzone A.²⁹,Maugeri E. A.¹⁰,Mengoni A.⁶¹¹,Roederer I. U.¹²¹³¹⁴,Straniero O.³¹⁵,Valenta S.⁵,Vescovi D.³⁴,Aberle O.⁸,Alcayne V.¹⁶,Andrzejewski J.¹⁷,Audouin L.¹⁸,Babiano-Suarez V.¹⁹,Bacak M.⁸²⁰²¹,Barbagallo M.⁸²,Bennett S.²²,Berthoumieux E.²¹,Billowes J.²²,Bosnar D.²³,Brown A.²⁴,Busso M.⁴²⁵,Caamaño M.²⁶,Caballero-Ontanaya L.¹⁹,Calviño F.²⁷,Calviani M.⁸,Cano-Ott D.¹⁶,Casanovas A.²⁷,Cerutti F.⁸,Chiaveri E.⁸²²,Cortés G.²⁷,Cortés-Giraldo M. A.²⁸,Damone L. A.²²⁹,Davies P. J.²²,Diakaki M.³⁰⁸,Dietz M.³¹,Domingo-Pardo C.¹⁹,Dressler R.¹⁰,Ducasse Q.³²,Dupont E.²¹,Durán I.²⁶,Eleme Z.³³,Fernández-Domínguez B.²⁶,Ferrari A.⁸,Furman V.³⁴,Göbel K.³⁵,Garg R.³¹,Gawlik-Ramięga A.¹⁷,Gilardoni S.⁸,Gonçalves I. F.³⁶,González-Romero E.¹⁶,Guerrero C.²⁸,Gunsing F.²¹,Harada H.³⁷,Heinitz S.¹⁰,Heyse J.³⁸,Jenkins D. G.²⁴,Junghans A.³⁹,Käppeler F.⁴⁰,Kadi Y.⁸,Kimura A.³⁷,Knapová I.⁵,Kokkoris M.³⁰,Kopatch Y.³⁴,Kurtulgil D.³⁵,Ladarescu I.¹⁹,Lederer-Woods C.³¹,Leeb H.²⁰,Lerendegui-Marco J.²⁸,Lonsdale S. J.³¹,Macina D.⁸,Manna A.⁶⁷,Martínez T.¹⁶,Masi A.⁸,Mastinu P.⁴¹,Mendoza E.¹⁶,Michalopoulou V.³⁰⁸,Milazzo P. M.⁴²,Mingrone F.⁸,Moreno-Soto J.²¹,Musumarra A.⁴³⁴⁴,Negret A.⁴⁵,Nolte R.³²,Ogállar F.⁴⁶,Oprea A.⁴⁵,Patronis N.³³,Pavlik A.⁴⁷,Perkowski J.¹⁷,Petrone C.⁴⁵,Piersanti L.³⁴,Pirovano E.³²,Porras I.⁴⁶,Praena J.⁴⁶,Quesada J. M.²⁸,Ramos-Doval D.¹⁸,Rauscher T.⁴⁸⁴⁹,Reifarth R.³⁵,Rochman D.¹⁰,Rubbia C.⁸,Sabaté-Gilarte M.²⁸⁸,Saxena A.⁵⁰,Schillebeeckx P.³⁸,Schumann D.¹⁰,Sekhar A.²²,Smith A. G.²²,Sosnin N. V.²²,Sprung P.¹⁰,Stamatopoulos A.³⁰,Tagliente G.²,Tain J. L.¹⁹,Tarifeño-Saldivia A.¹⁹,Tassan-Got L.⁸³⁰¹⁸,Thomas Th.³⁵,Torres-Sánchez P.⁴⁶,Tsinganis A.⁸,Ulrich J.¹⁰,Urlass S.³⁹⁸,Vannini G.⁶⁷,Variale V.²,Vaz P.³⁶,Ventura A.⁶,Vlachoudis V.⁸,Vlastou R.³⁰,Wallner A.⁵¹,Woods P. J.³¹,Wright T.²²,Žugec P.²³,

Affiliation:

1. INFN Laboratori Nazionali del Sud, Catania, Italy

2. Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy

3. Istituto Nazionale di Astrofisica - Osservatorio Astronomico d’Abruzzo, Italy

4. Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Italy

5. Charles University, Prague, Czech Republic

6. Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy

7. Dipartimento di Fisica e Astronomia, Università di Bologna, Italy

8. European Organization for Nuclear Research (CERN), Switzerland

9. Consiglio Nazionale delle Ricerche, Bari, Italy

10. Paul Scherrer Institut (PSI), Villigen, Switzerland

11. Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile (ENEA), Italy

12. Department of Physics, North Carolina State University, Raleigh, Norh Carolina 27695, USA

13. Department of Astronomy, University of Michigan, Ann Arbor, Michigan 48109, USA

14. Joint Institute for Nuclear Astrophysics—Center for the Evolution of the Elements (JINA-CEE), USA

15. INFN Sezione Napoli, Napoli, Italy

16. Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Spain

17. University of Lodz, Poland

18. Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, F-91406 Orsay Cedex, France

19. Instituto de Física Corpuscular, CSIC - Universidad de Valencia, Spain

20. TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria

21. CEA Irfu, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France

22. University of Manchester, United Kingdom

23. Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia

24. University of York, United Kingdom

25. Dipartimento di Fisica e Geologia, Università di Perugia, Italy

26. IGFAE—Universidade de Santiago de Compostela, Spain

27. Universitat Politècnica de Catalunya, Spain

28. Universidad de Sevilla, Spain

29. Dipartimento Interateneo di Fisica, Università degli Studi di Bari, Italy

30. National Technical University of Athens, Greece

31. School of Physics and Astronomy, University of Edinburgh, United Kingdom

32. Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany

33. University of Ioannina, Greece

34. Affiliated with an institute or an international laboratory covered by a cooperation agreement with CERN

35. Goethe University Frankfurt, Germany

36. Instituto Superior Técnico, Lisbon, Portugal

37. Japan Atomic Energy Agency (JAEA), Tokai-Mura, Japan

38. European Commission, Joint Research Centre (JRC), Geel, Belgium

39. Helmholtz-Zentrum Dresden-Rossendorf, Germany

40. Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany

41. INFN Laboratori Nazionali di Legnaro, Italy

42. Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy

43. Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Italy

44. Department of Physics and Astronomy, University of Catania, Italy

45. Horia Hulubei National Institute of Physics and Nuclear Engineering, Romania

46. University of Granada, Spain

47. University of Vienna, Faculty of Physics, Vienna, Austria

48. Department of Physics, University of Basel, Switzerland

49. Centre for Astrophysics Research, University of Hertfordshire, United Kingdom

50. Bhabha Atomic Research Centre (BARC), India

51. Australian National University, Canberra, Australia

Abstract

Ce140(n,γ) is a key reaction for slow neutron-capture (s-process) nucleosynthesis due to being a bottleneck in the reaction flow. For this reason, it was measured with high accuracy (uncertainty ≈5%) at the n_TOF facility, with an unprecedented combination of a high purity sample and low neutron-sensitivity detectors. The measured Maxwellian averaged cross section is up to 40% higher than previously accepted values. Stellar model calculations indicate a reduction around 20% of the s-process contribution to the Galactic cerium abundance and smaller sizeable differences for most of the heavier elements. No variations are found in the nucleosynthesis from massive stars.

Published by the American Physical Society

2024

Funder

Tokyo Institute of Technology

National Science Foundation

Istituto Nazionale di Astrofisica

Univerzita Karlova v Praze

European Commission

Joint Institute for Nuclear Astrophysics - Center for the Evolution of the Elements

Ministerstvo Školství, Mládeže a T?lovýchovy

Publisher

American Physical Society (APS)