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Title: Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates

Abstract

Total absorption gamma-ray spectroscopy is used to measure accurately the intensity of γ emission from neutron-unbound states populated in the β-decay of delayed-neutron emitters. From the comparison of this intensity with the intensity of neutron emission one can deduce information on the (n,γ) cross section for unstable neutron-rich nuclei of interest in r process abundance calculations. A surprisingly large γ branching was observed for a number of isotopes. Here, the results are compared with Hauser-Feshbach calculations and discussed.

Authors:
 [1];  [1];  [1];  [2];  [3];  [4];  [3];  [1];  [5];  [6];  [4];  [3];  [3];  [7];  [8];  [3];  [5];  [5];  [1];  [3] more »;  [3];  [4];  [9];  [10];  [8];  [4];  [7];  [5];  [7];  [5];  [5];  [1];  [5];  [5];  [11];  [5];  [12];  [8];  [4];  [8];  [1];  [1];  [5];  [13];  [1];  [5];  [4];  [5];  [3];  [14];  [5];  [5];  [5];  [5];  [1];  [5];  [3];  [5];  [15];  [9];  [5];  [12] « less
  1. Instituto de Fisica Corpuscular, Paterna (Spain)
  2. Instituto de Fisica Corpuscular, Paterna (Spain); Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen (Hungary)
  3. CNRS/IN2P3, Nantes (France)
  4. Univ. of Surrey, Guilford (United Kingdom)
  5. Univ. of Jyvaskyla (Finland)
  6. Petersburg Nuclear Physic Institute, Gatchina (Russia)
  7. Univ. Politecnica de Catalunya, Barcelona (Spain)
  8. Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, Madrid (Spain)
  9. Univ. Complutense, Madrid (Spain)
  10. Istanbul Univ., Istanbul (Turkey)
  11. Argonne National Lab. (ANL), Argonne, IL (United States)
  12. Institut de Physique Nucleaire d'Orsay, Orsay (France)
  13. Instituto de Estructura de la Materia, Madrid (Spain)
  14. Univ. of Surrey, Guilford (United Kingdom); National Physical Lab., Middlesex (United Kingdom)
  15. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); Spanish Ministerio de Economia y Competitividad (MINECO); European Commission, Community Research and Development Information Service (CORDIS), Seventh Framework Programme (FP7)
OSTI Identifier:
1411146
Alternate Identifier(s):
OSTI ID: 1393946
Report Number(s):
BNL-114737-2017-JA
Journal ID: ISSN 2100-014X; 131546
Grant/Contract Number:
AC02-06CH11357; SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
EPJ Web of Conferences
Additional Journal Information:
Journal Volume: 146; Journal ID: ISSN 2100-014X
Publisher:
EDP Sciences
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Tain, J. L., Guadilla, V., Valencia, E., Algora, A., Zakari-Issoufou, A. -A., Rice, S., Meur, L. Le, Agramunt, J., Aysto, J., Batist, L., Bowry, M., Briz, J. A., Bui, V. M., Caballero-Folch, R., Cano-Ott, D., Cucoanes, A., Elomaa, V. -V., Eronen, T., Estevez, E., Estienne, M., Fallot, M., Farrelly, G. F., Fraile, L. M., Ganioglu, E., Garcia, A. R., Gelletly, W., Gomez-Hornillos, B., Gorelov, D., Gorlychev, V., Hakala, J., Jokinen, A., Jordan, M. D., Kankainen, A., Kolhinen, V. S., Kondev, F. G., Koponen, J., Lebois, M., Martinez, T., Mason, P., Mendoza, E., Monserrate, M., Montaner-Piza, A., Moore, I., Nacher, E., Orrigo, S. E. A., Penttila, H., Podolyak, Zs., Pohjalainen, I., Porta, A., Regan, P. H., Reinikainen, J., Reponen, M., Rinta-Antila, S., Rissanen, J., Rubio, B., Rytkonen, K., Shiba, T., Sonnenschein, V., Sonzogni, A. A., Vedia, V., Voss, A., and Wilson, J. N.. Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates. United States: N. p., 2017. Web. doi:10.1051/epjconf/201714601002.
Tain, J. L., Guadilla, V., Valencia, E., Algora, A., Zakari-Issoufou, A. -A., Rice, S., Meur, L. Le, Agramunt, J., Aysto, J., Batist, L., Bowry, M., Briz, J. A., Bui, V. M., Caballero-Folch, R., Cano-Ott, D., Cucoanes, A., Elomaa, V. -V., Eronen, T., Estevez, E., Estienne, M., Fallot, M., Farrelly, G. F., Fraile, L. M., Ganioglu, E., Garcia, A. R., Gelletly, W., Gomez-Hornillos, B., Gorelov, D., Gorlychev, V., Hakala, J., Jokinen, A., Jordan, M. D., Kankainen, A., Kolhinen, V. S., Kondev, F. G., Koponen, J., Lebois, M., Martinez, T., Mason, P., Mendoza, E., Monserrate, M., Montaner-Piza, A., Moore, I., Nacher, E., Orrigo, S. E. A., Penttila, H., Podolyak, Zs., Pohjalainen, I., Porta, A., Regan, P. H., Reinikainen, J., Reponen, M., Rinta-Antila, S., Rissanen, J., Rubio, B., Rytkonen, K., Shiba, T., Sonnenschein, V., Sonzogni, A. A., Vedia, V., Voss, A., & Wilson, J. N.. Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates. United States. doi:10.1051/epjconf/201714601002.
Tain, J. L., Guadilla, V., Valencia, E., Algora, A., Zakari-Issoufou, A. -A., Rice, S., Meur, L. Le, Agramunt, J., Aysto, J., Batist, L., Bowry, M., Briz, J. A., Bui, V. M., Caballero-Folch, R., Cano-Ott, D., Cucoanes, A., Elomaa, V. -V., Eronen, T., Estevez, E., Estienne, M., Fallot, M., Farrelly, G. F., Fraile, L. M., Ganioglu, E., Garcia, A. R., Gelletly, W., Gomez-Hornillos, B., Gorelov, D., Gorlychev, V., Hakala, J., Jokinen, A., Jordan, M. D., Kankainen, A., Kolhinen, V. S., Kondev, F. G., Koponen, J., Lebois, M., Martinez, T., Mason, P., Mendoza, E., Monserrate, M., Montaner-Piza, A., Moore, I., Nacher, E., Orrigo, S. E. A., Penttila, H., Podolyak, Zs., Pohjalainen, I., Porta, A., Regan, P. H., Reinikainen, J., Reponen, M., Rinta-Antila, S., Rissanen, J., Rubio, B., Rytkonen, K., Shiba, T., Sonnenschein, V., Sonzogni, A. A., Vedia, V., Voss, A., and Wilson, J. N.. Wed . "Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates". United States. doi:10.1051/epjconf/201714601002. https://www.osti.gov/servlets/purl/1411146.
@article{osti_1411146,
title = {Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates},
author = {Tain, J. L. and Guadilla, V. and Valencia, E. and Algora, A. and Zakari-Issoufou, A. -A. and Rice, S. and Meur, L. Le and Agramunt, J. and Aysto, J. and Batist, L. and Bowry, M. and Briz, J. A. and Bui, V. M. and Caballero-Folch, R. and Cano-Ott, D. and Cucoanes, A. and Elomaa, V. -V. and Eronen, T. and Estevez, E. and Estienne, M. and Fallot, M. and Farrelly, G. F. and Fraile, L. M. and Ganioglu, E. and Garcia, A. R. and Gelletly, W. and Gomez-Hornillos, B. and Gorelov, D. and Gorlychev, V. and Hakala, J. and Jokinen, A. and Jordan, M. D. and Kankainen, A. and Kolhinen, V. S. and Kondev, F. G. and Koponen, J. and Lebois, M. and Martinez, T. and Mason, P. and Mendoza, E. and Monserrate, M. and Montaner-Piza, A. and Moore, I. and Nacher, E. and Orrigo, S. E. A. and Penttila, H. and Podolyak, Zs. and Pohjalainen, I. and Porta, A. and Regan, P. H. and Reinikainen, J. and Reponen, M. and Rinta-Antila, S. and Rissanen, J. and Rubio, B. and Rytkonen, K. and Shiba, T. and Sonnenschein, V. and Sonzogni, A. A. and Vedia, V. and Voss, A. and Wilson, J. N.},
abstractNote = {Total absorption gamma-ray spectroscopy is used to measure accurately the intensity of γ emission from neutron-unbound states populated in the β-decay of delayed-neutron emitters. From the comparison of this intensity with the intensity of neutron emission one can deduce information on the (n,γ) cross section for unstable neutron-rich nuclei of interest in r process abundance calculations. A surprisingly large γ branching was observed for a number of isotopes. Here, the results are compared with Hauser-Feshbach calculations and discussed.},
doi = {10.1051/epjconf/201714601002},
journal = {EPJ Web of Conferences},
number = ,
volume = 146,
place = {United States},
year = {Wed Sep 13 00:00:00 EDT 2017},
month = {Wed Sep 13 00:00:00 EDT 2017}
}

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