Measurement of La-139(n,gamma) cross section at n_TOF

R. Terlizzi, U. Abbondanno, G. Aerts, H. Alvarez, F. Alvarez-Velarde, S. Andriamonje, J. Andrzejewski, P. Assimakopoulos, L. Audouin, G. Badurek, P. Baumann, F. Becvar, E. Berthoumieux, F. Calvino, D. Cano-Ott, R. Capote, A. Carrillo de Albornoz, P. Cennini, V. Chepel, E. ChiaveriN. Colonna, G. Cortes, A. Couture, J. Cox, S. David, R. Dolfini, C. Domingo-Pardo, M. Dalhfors, W. Dridi, I. Duran, C. Eleftheriadis, M. Embid-Segura, L. Ferrant, A. Ferrari, R. Ferreira-Marques, L. Fitzpatrick, H. Frais-Koelbl, K. Fujii, W. Furman, C. Guerrero, I. Goncalves, R. Gallino, E. Gonzalez-Romero, A. Goverdovski, F. Gramegna, E. Griesmayer, F. Gunsing, B. Haas, R. Haight, M. Heil, A. Herrera-Martinez, M. Igashira, S. Isaev, E. Jericha, Y. Kadi, F. Kaeppeler, D. Karamanis, D. Karadimos, M. Kerveno, V. Ketlerov, P. Koehler, V. Konovalov, E. Kossionides, M. Krticka, C. Lamboudis, H. Leeb, A. Lindote, I. Lopes, M. Lozano, S. Lukic, J. Marganiec, L. Marques, S. Marrone, P. Mastinu, A. Mengoni, P. M. Milazzo, C. Moreau, M. Mosconi, F. Neves, H. Oberhummer, S. O'Brien, M. Oshima, J. Pancin, C. Papachristodoulou, C. T. Papadopoulous, C. Paradela, N. Patronis, A. Pavlik, P. Pavlopoulos, L. Perrot, R. Plag, A. Plompen, A. Plukis, A. Poch, C. Pretel, J. Quesada, T. Rauscher, R. Reifarth, M. Rosetti, C. Rubbia, G. Rudolf, P. Rullhusen, J. Salgado, L. Sarchiapone, I. Savvidis, C. Stephan, G. Tagliente, J. L. Tain, L. Tassan-Got, L. Tavora, I. Dillmann, G. Vannini, P. Vaz, A. Ventura, D. Villamarin, M. C. Vincente, V. Vlachoudis, R. Vlastou, F. Voss, S. Walter, H. Wendler, M. Wiescher, K. Wisshak

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The capture cross section of the 139La has been measured relative to 197Au standard at n_TOF. We provide here a short description of the experimental apparatus and of the data analysis procedures. The extracted resonance parameters allow to calculate the fundamental nuclear quantities such as average spacing <D > 1=0 = 268 +/- 22 eV, <D > 1=1 <250 eV neutron strength functions S0 = (0.79 +/- 0.03)x 10(4), and S1 = (0.73 +/- 0.05)x10-4 and the Maxwellian-averaged capture cross section (MACS). The MACS is particularly useful for the determination of the abundance synthesized by the main component of the s process [3].

Original languageEnglish
Title of host publicationFrontiers in Nuclear Structure Astrophysics, and Reactions: FINUSTAR
EditorsS. Harissopulos, P. Demetriou, R. Julin
PublisherAmerican Institute of Physics (AIP)
Pages551-553
Number of pages3
ISBN (Print)0-7354-0323-6
Publication statusPublished - 2006
EventInternational Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR) - Kos, Greece
Duration: 12 Sept 200517 Sept 2005

Publication series

NameAIP Conf Procs
Volume831
ISSN (Print)0094-243X

Conference

ConferenceInternational Conference on Frontiers in Nuclear Structure, Astrophysics and Reactions (FINUSTAR)
Country/TerritoryGreece
CityKos
Period12/09/0517/09/05

Keywords

  • MACS
  • La-139
  • level density
  • neutron capture
  • neutron strength function

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