New isotopes and isomers produced by the fragmentation of 238U at 1000 MeV/nucleon

M. Pfützner; P. Armbruster; T. Baumann; J. Benlliure; M. Bernas; W. N. Catford; D. Cortina-Gil; J. M. Daugas; H. Geissel; M. Górska; H. Grawe; R. Grzywacz; M. Hellström; N. Iwasa; Z. Janas; A. R. Junghans; M. Karny; S. Leenhardt; M. Lewitowicz; A. C. Mueller; F. De Oliviera; P. M. Regan; M. Rejmund; K. Rykaczewski; K. Sümmerer

doi:10.1016/S0370-2693(98)01332-X

New isotopes and isomers produced by the fragmentation of ²³⁸U at 1000 MeV/nucleon

M. Pfützner, P. Armbruster, T. Baumann, J. Benlliure, M. Bernas, W. N. Catford, D. Cortina-Gil, J. M. Daugas, H. Geissel, M. Górska, H. Grawe, R. Grzywacz, M. Hellström, N. Iwasa, Z. Janas, A. R. Junghans, M. Karny, S. Leenhardt, M. Lewitowicz, A. C. MuellerF. De Oliviera, P. M. Regan, M. Rejmund, K. Rykaczewski, K. Sümmerer

研究成果: Article › 査読

108 被引用数 (Scopus)

抄録

Seven previously unobserved neutron-rich isotopes (²⁰⁹Hg, ²¹⁰Hg, ²¹¹Tl, ²¹²Tl, ²¹⁸Bi, ²¹⁹Po and ²²⁰Po) have been identified among the fragmentation products of a 1000 MeV/nucleon ²³⁸U beam incident on a beryllium target. The γ-ray decays of 9 known and 4 new μs-isomers in nuclei around ²⁰⁸Pb were also observed. Production cross sections and probabilities for populating isomeric states in the fragmentation reaction were determined and compared with a simple model based on the statistical abrasion-ablation approach.

本文言語	English
ページ（範囲）	32-37
ページ数	6
ジャーナル	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
巻	444
号	1-2
DOI	https://doi.org/10.1016/S0370-2693(98)01332-X
出版ステータス	Published - 1998 12月 17
外部発表	はい

ASJC Scopus subject areas

核物理学および高エネルギー物理学

文献へのアクセス

10.1016/S0370-2693(98)01332-X

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引用スタイル

Pfützner, M., Armbruster, P., Baumann, T., Benlliure, J., Bernas, M., Catford, W. N., Cortina-Gil, D., Daugas, J. M., Geissel, H., Górska, M., Grawe, H., Grzywacz, R., Hellström, M., Iwasa, N., Janas, Z., Junghans, A. R., Karny, M., Leenhardt, S., Lewitowicz, M., ... Sümmerer, K. (1998). New isotopes and isomers produced by the fragmentation of ²³⁸U at 1000 MeV/nucleon. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 444(1-2), 32-37. https://doi.org/10.1016/S0370-2693(98)01332-X

Pfützner, M, Armbruster, P, Baumann, T, Benlliure, J, Bernas, M, Catford, WN, Cortina-Gil, D, Daugas, JM, Geissel, H, Górska, M, Grawe, H, Grzywacz, R, Hellström, M, Iwasa, N, Janas, Z, Junghans, AR, Karny, M, Leenhardt, S, Lewitowicz, M, Mueller, AC, De Oliviera, F, Regan, PM, Rejmund, M, Rykaczewski, K & Sümmerer, K 1998, 'New isotopes and isomers produced by the fragmentation of ²³⁸U at 1000 MeV/nucleon', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 444, no. 1-2, pp. 32-37. https://doi.org/10.1016/S0370-2693(98)01332-X

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title = "New isotopes and isomers produced by the fragmentation of 238U at 1000 MeV/nucleon",

abstract = "Seven previously unobserved neutron-rich isotopes (209Hg, 210Hg, 211Tl, 212Tl, 218Bi, 219Po and 220Po) have been identified among the fragmentation products of a 1000 MeV/nucleon 238U beam incident on a beryllium target. The γ-ray decays of 9 known and 4 new μs-isomers in nuclei around 208Pb were also observed. Production cross sections and probabilities for populating isomeric states in the fragmentation reaction were determined and compared with a simple model based on the statistical abrasion-ablation approach.",

author = "M. Pf{\"u}tzner and P. Armbruster and T. Baumann and J. Benlliure and M. Bernas and Catford, {W. N.} and D. Cortina-Gil and Daugas, {J. M.} and H. Geissel and M. G{\'o}rska and H. Grawe and R. Grzywacz and M. Hellstr{\"o}m and N. Iwasa and Z. Janas and Junghans, {A. R.} and M. Karny and S. Leenhardt and M. Lewitowicz and Mueller, {A. C.} and {De Oliviera}, F. and Regan, {P. M.} and M. Rejmund and K. Rykaczewski and K. S{\"u}mmerer",

note = "Funding Information: We thank Dr C. Baktash of Oak Ridge National Lab for providing a Clover-type Ge detector. One of us (M.P.) would like to express his gratitude for the hospitality and excellent working conditions during his stay in GSI. This work was partially supported by the Polish Committee of Scientific Research under grant KBN 2 P03B 036 15. M.G. is a scholar of the Foundation for Polish Science.",

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doi = "10.1016/S0370-2693(98)01332-X",

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AU - Pfützner, M.

AU - Armbruster, P.

AU - Baumann, T.

AU - Benlliure, J.

AU - Bernas, M.

AU - Catford, W. N.

AU - Cortina-Gil, D.

AU - Daugas, J. M.

AU - Geissel, H.

AU - Górska, M.

AU - Grawe, H.

AU - Grzywacz, R.

AU - Hellström, M.

AU - Iwasa, N.

AU - Janas, Z.

AU - Junghans, A. R.

AU - Karny, M.

AU - Leenhardt, S.

AU - Lewitowicz, M.

AU - Mueller, A. C.

AU - De Oliviera, F.

AU - Regan, P. M.

AU - Rejmund, M.

AU - Rykaczewski, K.

AU - Sümmerer, K.

N1 - Funding Information: We thank Dr C. Baktash of Oak Ridge National Lab for providing a Clover-type Ge detector. One of us (M.P.) would like to express his gratitude for the hospitality and excellent working conditions during his stay in GSI. This work was partially supported by the Polish Committee of Scientific Research under grant KBN 2 P03B 036 15. M.G. is a scholar of the Foundation for Polish Science.

PY - 1998/12/17

Y1 - 1998/12/17

N2 - Seven previously unobserved neutron-rich isotopes (209Hg, 210Hg, 211Tl, 212Tl, 218Bi, 219Po and 220Po) have been identified among the fragmentation products of a 1000 MeV/nucleon 238U beam incident on a beryllium target. The γ-ray decays of 9 known and 4 new μs-isomers in nuclei around 208Pb were also observed. Production cross sections and probabilities for populating isomeric states in the fragmentation reaction were determined and compared with a simple model based on the statistical abrasion-ablation approach.

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