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Journal Articles Journal of Physics G: Nuclear and Particle Physics Year : 2008

The measurement of the 206Pbn, gamma cross section and stellar implications

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

Abstract

The neutron capture cross section of 206Pb has been measured at the CERN n\TOF spectrometer using a setup of two C6D6 detectors. In the energy interval from 1 eV to 600 keV the cross section is dominated by resonances, which were analyzed via the R-matrix analysis code SAMMY. In the relevant energy ranges for stellar nucleosynthesis, i.e., at thermal energies of kT = 8 keV and kT = 23 keV, the present Maxwellian average cross section differs by 20% and 9% from the recommended values of Bao et al respectively. From the new cross section the s-abundance of 206Pb could be reliably determined as 70(4)%. This result is of importance in order to test and constrain r-process abundance calculations in the actinide region, because the r-process portion of 206Pb is dominated by α-back decays of short-lived transbismuth isotopes.

Dates and versions

in2p3-00197132 , version 1 (14-12-2007)

Identifiers

Cite

C. Domingo-Pardo, U. Abbondanno, G. Aerts, H. Álvarez, F. Alvarez-Velarde, et al.. The measurement of the 206Pbn, gamma cross section and stellar implications. Journal of Physics G: Nuclear and Particle Physics, 2008, 35, pp.014020. ⟨10.1088/0954-3899/35/1/014020⟩. ⟨in2p3-00197132⟩
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