Photodisintegration of 80Se and its implications for s-process branching

A. Makinaga; H. Utsunomiya; S. Goko; T. Kaihori; S. Houhara; S. Goriely; H. Toyokawa; H. Harano; T. Matsumoto; H. Harada; F. Kitatani; K. Y. Hara; Y. W. Lui

doi:10.1063/1.2713550

Photodisintegration of ⁸⁰Se and its implications for s-process branching

A. Makinaga
, H. Utsunomiya
, S. Goko
, T. Kaihori
, S. Houhara
, S. Goriely
, H. Toyokawa
, H. Harano
, T. Matsumoto
, H. Harada
, F. Kitatani
, K. Y. Hara
, Y. W. Lui

Konan University
Université libre de Bruxelles
National Institute of Advanced Industrial Science and Technology
Japan Atomic Energy Agency
Texas A&M University

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

1 Scopus citations

Abstract

Photodisintegration cross sections were measured for ⁸⁰Se with laser Compton scattering γ beams at E_γ=9.98-11.80 MeV near the neutron separation energy. The stellar neutron capture rate for ⁸⁰Se was evaluated by using the photodisintegration data as constraints on the E1 γ strength function for ⁸⁰Se within the framework of the Hauser-Feshbach statistical model. It was found that the rate at 30 keV is 0.7-1.1 times that of Bao and Käppeler. s-process temperatures deduced from the empirical solar abundances of the s-only nuclei ⁷⁹Se and ⁸⁰Kr with this neutron capture rate are 17-25 keV in the neutron density rage of (0.8-1.9)×10³/cm³.

Original language	English
Title of host publication	TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
Pages	431-434
Number of pages	4
DOIs	https://doi.org/10.1063/1.2713550
State	Published - 2007
Externally published	Yes
Event	TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI - Tours, France Duration: 5 Sep 2006 → 8 Sep 2006

Publication series

Name	AIP Conference Proceedings
Volume	891
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI
Country/Territory	France
City	Tours
Period	5/09/06 → 8/09/06

Keywords

Photodisintegration
S-process

Access to Document

10.1063/1.2713550

Cite this

Makinaga, A., Utsunomiya, H., Goko, S., Kaihori, T., Houhara, S., Goriely, S., Toyokawa, H., Harano, H., Matsumoto, T., Harada, H., Kitatani, F., Hara, K. Y., & Lui, Y. W. (2007). Photodisintegration of ⁸⁰Se and its implications for s-process branching. In TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI (pp. 431-434). (AIP Conference Proceedings; Vol. 891). https://doi.org/10.1063/1.2713550

@inproceedings{7f80b1ee2c0b47d8a1a104f6737c6eb0,

title = "Photodisintegration of 80Se and its implications for s-process branching",

abstract = "Photodisintegration cross sections were measured for 80Se with laser Compton scattering γ beams at Eγ=9.98-11.80 MeV near the neutron separation energy. The stellar neutron capture rate for 80Se was evaluated by using the photodisintegration data as constraints on the E1 γ strength function for 80Se within the framework of the Hauser-Feshbach statistical model. It was found that the rate at 30 keV is 0.7-1.1 times that of Bao and K{\"a}ppeler. s-process temperatures deduced from the empirical solar abundances of the s-only nuclei 79Se and 80Kr with this neutron capture rate are 17-25 keV in the neutron density rage of (0.8-1.9){\texttimes}103/cm3.",

keywords = "Photodisintegration, S-process",

author = "A. Makinaga and H. Utsunomiya and S. Goko and T. Kaihori and S. Houhara and S. Goriely and H. Toyokawa and H. Harano and T. Matsumoto and H. Harada and F. Kitatani and Hara, \{K. Y.\} and Lui, \{Y. W.\}",

year = "2007",

doi = "10.1063/1.2713550",

language = "英語",

isbn = "0735403953",

series = "AIP Conference Proceedings",

pages = "431--434",

booktitle = "TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI",

note = "TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI ; Conference date: 05-09-2006 Through 08-09-2006",

}

Makinaga, A, Utsunomiya, H, Goko, S, Kaihori, T, Houhara, S, Goriely, S, Toyokawa, H, Harano, H, Matsumoto, T, Harada, H, Kitatani, F, Hara, KY & Lui, YW 2007, Photodisintegration of ⁸⁰Se and its implications for s-process branching. in TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI. AIP Conference Proceedings, vol. 891, pp. 431-434, TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI, Tours, France, 5/09/06. https://doi.org/10.1063/1.2713550

TY - GEN

T1 - Photodisintegration of 80Se and its implications for s-process branching

AU - Makinaga, A.

AU - Utsunomiya, H.

AU - Goko, S.

AU - Kaihori, T.

AU - Houhara, S.

AU - Goriely, S.

AU - Toyokawa, H.

AU - Harano, H.

AU - Matsumoto, T.

AU - Harada, H.

AU - Kitatani, F.

AU - Hara, K. Y.

AU - Lui, Y. W.

PY - 2007

Y1 - 2007

N2 - Photodisintegration cross sections were measured for 80Se with laser Compton scattering γ beams at Eγ=9.98-11.80 MeV near the neutron separation energy. The stellar neutron capture rate for 80Se was evaluated by using the photodisintegration data as constraints on the E1 γ strength function for 80Se within the framework of the Hauser-Feshbach statistical model. It was found that the rate at 30 keV is 0.7-1.1 times that of Bao and Käppeler. s-process temperatures deduced from the empirical solar abundances of the s-only nuclei 79Se and 80Kr with this neutron capture rate are 17-25 keV in the neutron density rage of (0.8-1.9)×103/cm3.

AB - Photodisintegration cross sections were measured for 80Se with laser Compton scattering γ beams at Eγ=9.98-11.80 MeV near the neutron separation energy. The stellar neutron capture rate for 80Se was evaluated by using the photodisintegration data as constraints on the E1 γ strength function for 80Se within the framework of the Hauser-Feshbach statistical model. It was found that the rate at 30 keV is 0.7-1.1 times that of Bao and Käppeler. s-process temperatures deduced from the empirical solar abundances of the s-only nuclei 79Se and 80Kr with this neutron capture rate are 17-25 keV in the neutron density rage of (0.8-1.9)×103/cm3.

KW - Photodisintegration

KW - S-process

UR - https://www.scopus.com/pages/publications/33947720021

U2 - 10.1063/1.2713550

DO - 10.1063/1.2713550

M3 - 会議への寄与

AN - SCOPUS:33947720021

SN - 0735403953

SN - 9780735403956

T3 - AIP Conference Proceedings

SP - 431

EP - 434

BT - TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI

T2 - TOURS SYMPOSIUM ON NUCLEAR PHYSICS VI

Y2 - 5 September 2006 through 8 September 2006

ER -