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3 results on '"Mosat, P"'

1. New beta-decaying state in Bi-214

Author

Andel, B, Van Duppen, P, Andreyev, AN, Blazhev, A, Grawe, H, Lica, R, Naidja, H, Stryjczyk, M, Algora, A, Antalic, S, Barzakh, A, Benito, J, Benzoni, G, Berry, T, Borge, MJG, Chrysalidis, K, Clisu, C, Costache, C, Cubiss, JG, De Witte, H, Fedorov, DV, Fedosseev, VN, Fraile, LM, Fynbo, HOU, Greenlees, PT, Harkness-Brennan, LJ, Huyse, M, Illana, A, Jolie, J, Judson, DS, Konki, J, Lazarus, I, Madurga, M, Marginean, N, Marginean, R, Mihai, C, Marsh, BA, Molkanov, P, Mosat, P, Murias, JR, Nacher, E, Negret, A, Page, RD, Pascu, S, Perea, A, Pucknell, V, Rahkila, P, Rapisarda, E, Rezynkina, K, Sanchez-Tembleque, V, Schomacker, K, Seliverstov, MD, Sotty, C, Stan, L, Surder, C, Tengblad, O, Vedia, V, Vinals, S, Wadsworth, R, Warr, N, Collaboration, IDS, Research Foundation - Flanders, KU Leuven, Belgian Science Policy Office, European Commission, Science and Technology Facilities Council (UK), Slovak Research and Development Agency, Russian Foundation for Basic Research, Institute of Atomic Physics (Romania), Agencia Estatal de Investigación (España), Federal Ministry of Education and Research (Germany), and Ministerio de Ciencia e Innovación (España)

Subjects
Physics, Science & Technology, 010308 nuclear & particles physics, State (functional analysis), 01 natural sciences, ISOLDE, 3. Good health, Physics, Nuclear, NUCLEAR-DATA SHEETS, Quantum mechanics, 0103 physical sciences, Physical Sciences, SHELL-MODEL, Física nuclear, 010306 general physics
Abstract

13 pags., 7 figs., 3 tabs., A new β-decaying state in Bi214 has been identified at the ISOLDE Decay Station at the CERN-ISOLDE facility. A preferred Iπ=(8-) assignment was suggested for this state based on the β-decay feeding pattern to levels in Po214 and shell-model calculations. The half-life of the Iπ=(8-) state was deduced to be T1/2=9.39(10) min. The deexcitation of the levels populated in Po214 by the β decay of this state was investigated via γ-γ coincidences and a number of new levels and transitions was identified. Shell-model calculations for excited states in Bi214 and Po214 were performed using two different effective interactions: the H208 and the modified Kuo-Herling particle interaction. Both calculations agree on the interpretation of the new β-decaying state as an Iπ=8- isomer and allow for tentative assignment of shell-model states to several high-spin states in Po214., This work has been supported by the Research Foundation Flanders (FWO, Belgium), by GOA/2015/010 (BOF KU Leuven), the Interuniversity Attraction Poles Programme initiated by the Belgian Science Policy Office (BriX network P7/12), by the ENSAR2: European Union’s Horizon 2020 research and innovation programme under Grant Agreement No. 654002, by the U.K. Science and Technology Facilities Council, by the Slovak Research and Development Agency (Contract No. APVV-18-0268), by the Slovak grant agency VEGA (Contract No. 1/0651/21), by RFBR according to the research project N 19-02-00005, by the Romanian IFA Grant CERN/ISOLDE, by the Spanish Funding Agency (AEI) under the project PID2019-104390GB-I00, by the German BMBF under Grant No. 05P18PKCIA and by the Spanish Ministerio de Ciencia e Innovación grant PID2019-104714GB-C21. M.S. acknowledges funding from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 771036 (ERC CoG MAIDEN).

Published
2021

2. New beta-decaying state in Bi-214

Author

Andel, B., Van Duppen, P., Andreyev, A. N., Blazhev, A., Grawe, H., Lica, R., Naidja, H., Stryjczyk, M., Algora, A., Antalic, S., Barzakh, A., Benito, J., Benzoni, G., Berry, T., Borge, M. J. G., Chrysalidis, K., Clisu, C., Costache, C., Cubiss, J. G., De Witte, H., Fedorov, D., V, Fedosseev, V. N., Fraile, L. M., Fynbo, H. O. U., Greenlees, P. T., Harkness-Brennan, L. J., Huyse, M., Illana, A., Jolie, J., Judson, D. S., Konki, J., Lazarus, I, Madurga, M., Marginean, N., Marginean, R., Mihai, C., Marsh, B. A., Molkanov, P., Mosat, P., Murias, J. R., Nacher, E., Negret, A., Page, R. D., Pascu, S., Perea, A., Pucknell, V, Rahkila, P., Rapisarda, E., Rezynkina, K., Sanchez-Tembleque, V, Schomacker, K., Seliverstov, M. D., Sotty, C., Stan, L., Surder, C., Tengblad, O., Vedia, V., Vinals, S., Wadsworth, R., Warr, N., Andel, B., Van Duppen, P., Andreyev, A. N., Blazhev, A., Grawe, H., Lica, R., Naidja, H., Stryjczyk, M., Algora, A., Antalic, S., Barzakh, A., Benito, J., Benzoni, G., Berry, T., Borge, M. J. G., Chrysalidis, K., Clisu, C., Costache, C., Cubiss, J. G., De Witte, H., Fedorov, D., V, Fedosseev, V. N., Fraile, L. M., Fynbo, H. O. U., Greenlees, P. T., Harkness-Brennan, L. J., Huyse, M., Illana, A., Jolie, J., Judson, D. S., Konki, J., Lazarus, I, Madurga, M., Marginean, N., Marginean, R., Mihai, C., Marsh, B. A., Molkanov, P., Mosat, P., Murias, J. R., Nacher, E., Negret, A., Page, R. D., Pascu, S., Perea, A., Pucknell, V, Rahkila, P., Rapisarda, E., Rezynkina, K., Sanchez-Tembleque, V, Schomacker, K., Seliverstov, M. D., Sotty, C., Stan, L., Surder, C., Tengblad, O., Vedia, V., Vinals, S., Wadsworth, R., and Warr, N.

Abstract

A new beta-decaying state in Bi-214 has been identified at the ISOLDE Decay Station at the CERN-ISOLDE facility. A preferred I-pi = (8(-)) assignment was suggested for this state based on the beta-decay feeding pattern to levels in Po-214 and shell-model calculations. The half-life of the I-pi = (8) state was deduced to be T-1/2 = 9.39(10) min. The deexcitation of the levels populated in Po-214 by the beta decay of this state was investigated via gamma-gamma coincidences and a number of new levels and transitions was identified. Shell-model calculations for excited states in Bi-214 and Po-214 were performed using two different effective interactions: the H208 and the modified Kuo-Herling particle interaction. Both calculations agree on the interpretation of the new beta-decaying state as an I-pi = 8 - isomer and allow for tentative assignment of shell-model states to several high-spin states in Po-214.

Published
2021

3. Decay studies of the long-lived states in Tl-186

Author

Stryjczyk, M., Andel, B., Andreyev, A. N., Cubiss, J., Pakarinen, J., Rezynkina, K., Van Duppen, P., Antalic, S., Berry, T., Borge, M. J. G., Clisu, C., Cox, D. M., De Witte, H., Fraile, L. M., Fynbo, H. O. U., Gaffney, L. P., Harkness-Brennan, L. J., Huyse, M., Illana, A., Judson, D. S., Konki, J., Kurcewicz, J., Lazarus, I, Lica, R., Madurga, M., Marginean, N., Marginean, R., Mihai, C., Mosat, P., Nacher, E., Negret, A., Ojala, J., Ovejas, J. D., Page, R. D., Papadakis, P., Pascu, S., Perea, A., Podolyak, Zs, Pucknell, V, Rapisarda, E., Rotaru, F., Sotty, C., Tengblad, O., Vedia, V., Vinals, S., Wadsworth, R., Warr, N., Wrzosek-Lipska, K., Stryjczyk, M., Andel, B., Andreyev, A. N., Cubiss, J., Pakarinen, J., Rezynkina, K., Van Duppen, P., Antalic, S., Berry, T., Borge, M. J. G., Clisu, C., Cox, D. M., De Witte, H., Fraile, L. M., Fynbo, H. O. U., Gaffney, L. P., Harkness-Brennan, L. J., Huyse, M., Illana, A., Judson, D. S., Konki, J., Kurcewicz, J., Lazarus, I, Lica, R., Madurga, M., Marginean, N., Marginean, R., Mihai, C., Mosat, P., Nacher, E., Negret, A., Ojala, J., Ovejas, J. D., Page, R. D., Papadakis, P., Pascu, S., Perea, A., Podolyak, Zs, Pucknell, V, Rapisarda, E., Rotaru, F., Sotty, C., Tengblad, O., Vedia, V., Vinals, S., Wadsworth, R., Warr, N., and Wrzosek-Lipska, K.

Abstract

Decay spectroscopy of the long-lived states in Tl-186 has been performed at the ISOLDE Decay Station at ISOLDE, CERN. The a decay from the low-spin (2(-)) state in Tl-186 was observed for the first time and a half-life of 3.4(-0.)(4)(+0.5) s was determined. Based on the alpha-decay energy, the relative positions of the long-lived states were fixed, with the (2(-)) state as the ground state, the 7((+)) state at 77(56) keV, and the 10((-)) state at 451(56) keV. The level scheme of the internal decay of the Tl-186(10((-))) state [T-1/2 = 3.40(9) s], which was known to decay solely through emission of 374-keV gamma-ray transition, was extended and a lower limit for the beta-decay branching b(beta) > 5.9(3)% was determined. The extracted retardation factors for the gamma decay of the 10((-) )state were compared to the available data in neighboring odd-odd thallium isotopes indicating the importance of the pi d(3/2) shell in the isomeric decay and significant structure differences between Tl-184 and Tl-186.

Published
2020

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