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.

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

MASSIMI, CRISTIAN;VANNINI, GIANNI;
2011

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.
G. Tagliente; P. M. Milazzo; K. Fujii; U. Abbondanno; G. Aerts; H. Álvarez; F. Alvarez-Velarde; S. Andriamonje; J. Andrzejewski; L. Audouin; G. Badurek; P. Baumann; F. Bečvář; F. Belloni; E. Berthoumieux; F. Calviño; M. Calviani; D. Cano-Ott; R. Capote; C. Carrapiço; P. Cennini; V. Chepel; E. Chiaveri; N. Colonna; G. Cortes; A. Couture; M. Dahlfors; S. David; I. Dillmann; C. Domingo-Pardo; W. Dridi; I. Duran; C. Eleftheriadis; M. Embid-Segura; A. Ferrari; R. Ferreira-Marques; W. Furman; I. Goncalves; E. Gonzalez-Romero; F. Gramegna; C. Guerrero; F. Gunsing; B. Haas; R. Haight; M. Heil; A. Herrera-Martinez; E. Jericha; F. Käppeler; Y. Kadi; D. Karadimos; D. Karamanis; M. Kerveno; E. Kossionides; M. Krtička; C. Lamboudis; H. Leeb; A. Lindote; I. Lopes; S. Lukic; 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; C. Papachristodoulou; C. Papadopoulos; C. Paradela; N. Patronis; A. Pavlik; P. Pavlopoulos; L. Perrot; M. T. Pigni; R. Plag; A. Plompen; A. Plukis; A. Poch; J. Praena; C. Pretel; J. Quesada; R. Reifarth; M. Rosetti; C. Rubbia; G. Rudolf; P. Rullhusen; J. Salgado; C. Santos; L. Sarchiapone; I. Savvidis; C. Stephan; J. L. Tain; L. Tassan-Got; 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
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/107469
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