96Zr(n, γ) measurement at the n_TOF facility at CERN

G. Tagliente , P. M. Milazzo , K. Fujii , U. Abbondanno , G. Aerts (1) , H. Álvarez , F. Alvarez-Velarde , S. Andriamonje (1) , J. Andrzejewski , L. Audouin (2) , G. Badurek , P. Baumann (3) , F. Bečvář , F. Belloni , E. Berthoumieux (1) , F. Calviño , M. Calviani , D. Cano-Ott , R. Capote , C. Carrapiço (1) , P. Cennini , V. Chepel , E. Chiaveri , N. Colonna , G. Cortes , A. Couture , M. Dahlfors , S. David (2) , I. Dillmann , C. Domingo-Pardo , W. Dridi (1) , I. Duran , C. Eleftheriadis , M. Embid-Segura , Anthony Ferrari , R. Ferreira-Marques , W. Furman , I. Goncalves , E. Gonzalez-Romero , F. Gramegna , C. Guerrero , F. Gunsing , B. Haas (4) , R. Haight , M. Heil , A. Herrera-Martinez , E. Jericha , F. Käppeler , Y. Kadi , D. Karadimos , D. Karamanis (5) , M. Kerveno (3) , E. Kossionides , M. Krtička , C. Lamboudis , H. Leeb , A. Lindote , I. Lopes , S. Lukic (3) , J. Marganiec , S. Marrone , T. Martínez , C. Massimi , P. Mastinu , A. Mengoni , C. Moreau , M. Mosconi , F. Neves , H. Oberhummer , S. O'Brien , J. Pancin (1) , C. Papachristodoulou , C. Papadopoulos , C. Paradela , N. Patronis , A. Pavlik , P. Pavlopoulos (6) , L. Perrot (1) , M. T. Pigni , R. Plag , A. Plompen , A. Plukis (1) , A. Poch , J. Praena , C. Pretel , J. Quesada , R. Reifarth , M. Rosetti (1) , C. Rubbia , G. Rudolf , P. Rullhusen , J. Salgado , C. Santos , L. Sarchiapone , I. Savvidis , C. Stephan (2) , J. L. Tain , L. Tassan-Got (2) , L. Tavora , R. Terlizzi , G. Vannini , P. Vaz , A. Ventura , D. Villamarin , M. C. Vincente , V. Vlachoudis , R. Vlastou , F. Voss , S. Walter , M. Wiescher , K. Wisshak

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 IPNO - Institut de Physique Nucléaire d'Orsay
3 DRS-IPHC - Département Recherches Subatomiques
4 ACEN - Aval du cycle et Energie Nucléaire
5 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
6 Pôle Universitaire Léonard de Vinci

The (n, γ) cross section of 96Zr has been investigated at the CERN n_TOF spallation neutron source. High-resolution time-of-flight measurements using an enriched ZrO2 sample allowed us to analyze 15 resonances below 40 keV with improved accuracy. On average, the capture widths were found to be 25% smaller than reported in earlier experiments. If complemented with the contribution by direct radiative capture, the derived Maxwellian averaged cross sections are consistent with activation data at kT=25 keV. The present results confirm the astrophysical implications for the s-process branching at 95Zr.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

G. Tagliente, P. M. Milazzo, K. Fujii, U. Abbondanno, G. Aerts, et al.. 96Zr(n, γ) measurement at the n_TOF facility at CERN. Physical Review C, 2011, 84, pp.055802. ⟨10.1103/PhysRevC.84.055802⟩. ⟨in2p3-00651264⟩