Measurement of the resonance capture cross section of 204,206Pb and termination of the s-process

The n_TOF Collaboration

doi:10.1063/1.2187873

Measurement of the resonance capture cross section of ^204,206Pb and termination of the s-process

The n_TOF Collaboration

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The neutron capture cross sections of ²⁰⁴Pb and ²⁰⁶Pb have been measured at the CERN n_TOF installation using the time of flight method with the pulse height weighting technique. In a preliminary analysis of ²⁰⁴Pb we have determined by first time the capture cross sections for two strong s-wave resonances below 2.5 keV, which seem to enhance the Maxwellian Averaged Cross Section at kT = 5 keV by about a factor of two with respect to the value assumed so far. In ²⁰⁶Pb we have determined capture cross sections for a large number (97) of resonances, which were not reported in the two previous capture measurements. We discuss preliminary implications of the new cross sections in the stellar nucleosynthesis of the Pb isotopes.

Original language	English
Title of host publication	CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
Subtitle of host publication	12th International Symposium
Pages	288-292
Number of pages	5
DOIs	https://doi.org/10.1063/1.2187873
Publication status	Published - 13 Mar 2006
Event	12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics - Notre Dame, IN, United States Duration: 4 Sept 2005 → 9 Sept 2005

Publication series

Name	AIP Conference Proceedings
Volume	819
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics
Country/Territory	United States
City	Notre Dame, IN
Period	4/09/05 → 9/09/05

Access to Document

10.1063/1.2187873

Cite this

@inproceedings{3d29f68c8504465e97c0242e9b42809d,

title = "Measurement of the resonance capture cross section of 204,206Pb and termination of the s-process",

abstract = "The neutron capture cross sections of 204Pb and 206Pb have been measured at the CERN n_TOF installation using the time of flight method with the pulse height weighting technique. In a preliminary analysis of 204Pb we have determined by first time the capture cross sections for two strong s-wave resonances below 2.5 keV, which seem to enhance the Maxwellian Averaged Cross Section at kT = 5 keV by about a factor of two with respect to the value assumed so far. In 206Pb we have determined capture cross sections for a large number (97) of resonances, which were not reported in the two previous capture measurements. We discuss preliminary implications of the new cross sections in the stellar nucleosynthesis of the Pb isotopes.",

author = "{The n_TOF Collaboration} and C. Domingo-Pardo and S. O'Brien and U. Abbondanno and G. Aerts and H. {\'A}lvarez and F. Alvarez-Velarde and S. Andriamonje and J. Andrzejewski and P. Assimakopoulos and L. Audouin and G. Badurek and P. Baumann and F. Be{\v c}v{\'a}{\v r} and E. Berthoumieux and F. Calvi{\~n}o and D. Cano-Ott and R. Capote and {Carrillo de Albornoz}, A. and P. Cennini and V. Chepel and E. Chiaveri and N. Colonna and G. Cortes and A. Couture and J. Cox and M. Dahlfors and S. David and I. Dillmann and R. Dolfini and W. Dridi and I. Duran and C. Eleftheriadis and M. Embid-Segura and L. Ferrant and A. Ferrari and R. Ferreira-Marques and L. Fitzpatrick and H. Frais-Koelbl and K. Fujii and W. Furman and C. Guerrero and I. Goncalves and R. Gallino and E. Gonzalez-Romero and A. Goverdovski and F. Gramegna and E. Griesmayer and F. Gunsing and B. Haas and T. Rauscher",

year = "2006",

month = mar,

day = "13",

doi = "10.1063/1.2187873",

language = "English",

isbn = "0735403139",

series = "AIP Conference Proceedings",

pages = "288--292",

booktitle = "CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS",

note = "12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics ; Conference date: 04-09-2005 Through 09-09-2005",

}

The n_TOF Collaboration 2006, Measurement of the resonance capture cross section of ^204,206Pb and termination of the s-process. in CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS: 12th International Symposium. AIP Conference Proceedings, vol. 819, pp. 288-292, 12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, Notre Dame, IN, United States, 4/09/05. https://doi.org/10.1063/1.2187873

TY - GEN

T1 - Measurement of the resonance capture cross section of 204,206Pb and termination of the s-process

AU - The n_TOF Collaboration

AU - Domingo-Pardo, C.

AU - O'Brien, S.

AU - Abbondanno, U.

AU - Aerts, G.

AU - Álvarez, H.

AU - Alvarez-Velarde, F.

AU - Andriamonje, S.

AU - Andrzejewski, J.

AU - Assimakopoulos, P.

AU - Audouin, L.

AU - Badurek, G.

AU - Baumann, P.

AU - Bečvář, F.

AU - Berthoumieux, E.

AU - Calviño, F.

AU - Cano-Ott, D.

AU - Capote, R.

AU - Carrillo de Albornoz, A.

AU - Cennini, P.

AU - Chepel, V.

AU - Chiaveri, E.

AU - Colonna, N.

AU - Cortes, G.

AU - Couture, A.

AU - Cox, J.

AU - Dahlfors, M.

AU - David, S.

AU - Dillmann, I.

AU - Dolfini, R.

AU - Dridi, W.

AU - Duran, I.

AU - Eleftheriadis, C.

AU - Embid-Segura, M.

AU - Ferrant, L.

AU - Ferrari, A.

AU - Ferreira-Marques, R.

AU - Fitzpatrick, L.

AU - Frais-Koelbl, H.

AU - Fujii, K.

AU - Furman, W.

AU - Guerrero, C.

AU - Goncalves, I.

AU - Gallino, R.

AU - Gonzalez-Romero, E.

AU - Goverdovski, A.

AU - Gramegna, F.

AU - Griesmayer, E.

AU - Gunsing, F.

AU - Haas, B.

AU - Rauscher, T.

PY - 2006/3/13

Y1 - 2006/3/13

N2 - The neutron capture cross sections of 204Pb and 206Pb have been measured at the CERN n_TOF installation using the time of flight method with the pulse height weighting technique. In a preliminary analysis of 204Pb we have determined by first time the capture cross sections for two strong s-wave resonances below 2.5 keV, which seem to enhance the Maxwellian Averaged Cross Section at kT = 5 keV by about a factor of two with respect to the value assumed so far. In 206Pb we have determined capture cross sections for a large number (97) of resonances, which were not reported in the two previous capture measurements. We discuss preliminary implications of the new cross sections in the stellar nucleosynthesis of the Pb isotopes.

AB - The neutron capture cross sections of 204Pb and 206Pb have been measured at the CERN n_TOF installation using the time of flight method with the pulse height weighting technique. In a preliminary analysis of 204Pb we have determined by first time the capture cross sections for two strong s-wave resonances below 2.5 keV, which seem to enhance the Maxwellian Averaged Cross Section at kT = 5 keV by about a factor of two with respect to the value assumed so far. In 206Pb we have determined capture cross sections for a large number (97) of resonances, which were not reported in the two previous capture measurements. We discuss preliminary implications of the new cross sections in the stellar nucleosynthesis of the Pb isotopes.

UR - http://www.scopus.com/inward/record.url?scp=33751208335&partnerID=8YFLogxK

U2 - 10.1063/1.2187873

DO - 10.1063/1.2187873

M3 - Conference contribution

AN - SCOPUS:33751208335

SN - 0735403139

SN - 9780735403130

T3 - AIP Conference Proceedings

SP - 288

EP - 292

BT - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS

T2 - 12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics

Y2 - 4 September 2005 through 9 September 2005

ER -