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Your search keyword '"Chakrawarthy, R.S."' showing total 2 results
Start Over Author "Chakrawarthy, R.S." Topic [phys.nexp]physics [physics]/nuclear experiment [nucl-ex]
2 results on '"Chakrawarthy, R.S."'

1. High-spin structures in $^{132}$Xe and $^{133}$Xe and evidence for isomers along the $N=79$ isotones

Author

Vogt, A., Siciliano, M., Birkenbach, B., Reiter, P., Hadyńska-Klęk, K., Wheldon, C., Valiente-Dobón, J.J., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Blazhev, A., Bracco, A., Bruyneel, B., Chakrawarthy, R.S., Chapman, R., Cline, D., Corradi, L., Crespi, F.C.L., Cromaz, M., De Angelis, G., Eberth, J., Fallon, P., Farnea, E., Fioretto, E., Fransen, C., Freeman, S.J., Fu, B., Gadea, A., Gelletly, W., Giaz, A., Görgen, A., Gottardo, A., Hayes, A.B., Hess, H., Hetzenegger, R., Hirsch, R., Hua, H., John, P.R., Jolie, J., Jungclaus, A., Karayonchev, V., Kaya, L., Korten, W., Lee, I.Y., Leoni, S., Liang, X., Lunardi, S., Macchiavelli, A.O., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatović, T., Montagnoli, G., Montanari, D., Müller-Gatermann, C., Napoli, D., Pearson, C.J., Podolyák, Zs., Pollarolo, G., Pullia, A., Queiser, M., Recchia, F., Regan, P.H., Régis, J.M., Saed-Samii, N., Şahin, E., Scarlassara, F., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J.F., Söderström, P.A., Stefanini, A.M., Stezowski, O., Szilner, S., Szpak, B., Teng, R., Ur, C., Warner, D.D., Wolf, K., Wu, C.Y., Zell, K.O., Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Laue-Langevin (ILL), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), ILL, Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; The transitional nuclei Xe132 and Xe133 are investigated after multinucleon-transfer (MNT) and fusion-evaporation reactions. Both nuclei are populated (i) in Xe136+Pb208 MNT reactions employing the high-resolution Advanced GAmma Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA, (ii) in the Xe136+Pt198 MNT reaction employing the GAMMASPHERE spectrometer in combination with the gas-detector array CHICO, and (iii) as an evaporation residue after a Te130(α,xn)Xe134−xn fusion-evaporation reaction employing the HORUS γ-ray array at the University of Cologne. The high-spin level schemes are considerably extended above the Jπ=(7−) and (10+) isomers in Xe132 and above the 11/2− isomer in Xe133. The results are compared to the high-spin systematics of the Z=54 as well as the N=78 and N=79 chains. Furthermore, evidence is found for a long-lived (T1/2≫1μs) isomer in Xe133 which closes a gap along the N=79 isotones. Shell-model calculations employing the SN100PN and PQM130 effective interactions reproduce the experimental findings and provide guidance to the interpretation of the observed high-spin features.

Published
2017

2. Isomers and high-spin structures in the $N$=81 isotones $^{135}$Xe and $^{137}$Ba

Author

Vogt, A., Birkenbach, B., Reiter, P., Blazhev, A., Siciliano, M., Hadyńska-Klęk, K., Valiente-Dobón, J.J., Wheldon, C., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Bowry, M., Bracco, A., Bruyneel, B., Chakrawarthy, R.S., Chapman, R., Cline, D., Corradi, L., Crespi, F.C. L, Cromaz, M., De Angelis, G., Eberth, J., Fallon, P., Farnea, E., Fioretto, E., Freeman, S.J., Fu, B., Gadea, A., Geibel, K., Gelletly, W., Gengelbach, A., Giaz, A., Görgen, A., Gottardo, A., Hayes, A.B., Hess, H., Hirsch, R., Hua, H., John, P.R., Jolie, J., Jungclaus, A., Kaya, L., Korten, W., Lee, I.Y., Leoni, S., Lewandowski, L., Liang, X., Lunardi, S., Macchiavelli, A.O., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatović, T., Montagnoli, G., Montanari, D., Müller-Gatermann, C., Napoli, D., Pearson, C.J., Pellegri, L., Podolyák, Zs., Pollarolo, G., Pullia, A., Queiser, M., Radeck, F., Recchia, F., Regan, P.H., Rosiak, D., Saed-Samii, N., Şahin, E., Scarlassara, F., Schneiders, D., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J.F., Söderström, P.A., Stefanini, A.M., Steinbach, T., Stezowski, O., Szilner, S., Szpak, B., Teng, R., Ur, C., Vandone, V., Warner, D.D., Wiens, A., Wu, C.Y., Zell, K.O., Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; The high-spin structures and isomers of the N=81 isotones Xe135 and Ba137 are investigated after multinucleon-transfer (MNT) and fusion-evaporation reactions. Both nuclei are populated (i) in Xe136+U238 and (ii) Xe136+Pb208 MNT reactions employing the high-resolution Advanced Gamma Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA, (iii) in the Xe136+Pt198 MNT reaction employing the γ-ray array GAMMASPHERE in combination with the gas-detector array CHICO, and (iv) via a B11+Te130 fusion-evaporation reaction with the HORUS γ-ray array at the University of Cologne. The high-spin level schemesof Xe135 and Ba137 are considerably extended to higher energies. The 2058-keV (19/2−) state in Xe135 is identified as an isomer, closing a gap in the systematics along the N=81 isotones. Its half-life is measured to be 9.0(9) ns, corresponding to a reduced transition probability of B(E2,19/2−→15/2−)=0.52(6) W.u. The experimentally deduced reduced transition probabilities of the isomeric states are compared to shell-model predictions. Latest shell-model calculations reproduce the experimental findings generally well and provide guidance to the interpretation of the new levels.

Published
2017

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