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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
Abstract : 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.
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Submitted on : Tuesday, December 13, 2011 - 11:22:02 AM
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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, American Physical Society, 2011, 84, pp.055802. ⟨10.1103/PhysRevC.84.055802⟩. ⟨in2p3-00651264⟩

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