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101. Proton Distribution Radii of ^{12-19}C Illuminate Features of Neutron Halos

Author

Kanungo, R., Horiuchi, W., Hagen, G., Jansen, G. R., Navratil, P., Ameil, F., Atkinson, J., Ayyad, Y., Cortina-Gil, D., Dillmann, I., Estradé, A., Evdokimov, A., Farinon, F., Geissel, H., Guastalla, G., Janik, R., Kimura, M., Knöbel, R., Kurcewicz, J., Litvinov, Yu. A., Marta, M., Mostazo, M., Mukha, I., Nociforo, C., Ong, H. J., Pietri, S., Prochazka, A., Scheidenberger, C., Sitar, B., Strmen, P., Suzuki, Y., Takechi, M., Tanaka, J., Tanihata, I., Terashima, S., Vargas, J., Weick, H., and Winfield, J. S.

Subjects
Nuclear Theory (nucl-th), Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

Proton radii of $^{12-19}$C densities derived from first accurate charge changing cross section measurements at 900$A$ MeV with a carbon target are reported. A thick neutron surface evolves from $\sim$ 0.5 fm in $^{15}$C to $\sim$ 1 fm in $^{19}$C. The halo radius in $^{19}$C is found to be 6.4$\pm$0.7 fm as large as $^{11}$Li. Ab initio calculations based on chiral nucleon-nucleon and three-nucleon forces reproduce well the radii., Comment: 5 pages, 4 figures, accepted for publication in Phys. Rev. Lett

Published
2016

102. Systematic investigation of projectile fragmentation using beams of unstable B and C isotopes

Author

Thies, R, Heinz, A, Adachi, T, Aksyutina, Y, Alcantara-Nunes, J, Altstadt, S, Alvarez-Pol, H, Ashwood, N, Aumann, T, Avdeichikov, V, Barr, M, Beceiro-Novo, S, Bemmerer, D, Benlliure, J, Bertulani, CA, Boretzky, K, Borge, MJG, Burgunder, G, Camano, M, Caesar, C, Casarejos, E, Catford, W, Cederkall, J, Chakraborty, S, Chartier, M, Chulkov, LV, Cortina-Gil, D, Crespo, R, Datta, U, Diaz Fernandez, P, Dillmann, I, Elekes, Z, Enders, J, Ershova, O, Estrade, A, Farinon, F, Fraile, LM, Freer, M, Freudenberger, M, Fynbo, HOU, Galaviz, D, Geissel, H, Gernhauser, R, Gobel, K, Golubev, P, Diaz, DG, Hagdahl, J, Heftrich, T, Heil, M, Heine, M, Henriques, A, Holl, M, Ickert, G, Ignatov, A, Jakobsson, B, Johansson, HT, Jonson, B, Kalantar-Nayestanaki, N, Kanungo, R, Knobel, R, Kroll, T, Krucken, R, Kurcewicz, J, Kurz, N, Labiche, M, Langer, C, Le Bleis, T, Lemmon, R, Lepyoshkina, O, Lindberg, S, Machado, J, Marganiec, J, Maroussov, V, Mostazo, M, Movsesyan, A, Najafi, A, Nilsson, T, Nociforo, C, Panin, V, Paschalis, S, Perea, A, Petri, M, Pietri, S, Plag, R, Prochazka, A, Rahaman, A, Rastrepina, G, Reifarth, R, Ribeiro, G, Ricciardi, MV, Rigollet, C, Riisager, K, Roder, M, Rossi, D, Sanchez del Rio, J, Savran, D, Scheit, H, Simon, H, Sorlin, O, Stoica, V, Streicher, B, Taylor, JT, Tengblad, O, Terashima, S, Togano, Y, Uberseder, E, Van de Walle, J, Velho, P, Volkov, V, Wagner, A, Wamers, F, Weick, H, Weigand, M, Wheldon, C, Wilson, G, Wimmer, C, Winfield, JS, Woods, P, Yakorev, D, Zhukov, MV, Zilges, A, Zuber, K, Collaboration, R, Helmholtz zentrum für Schwerionenforschung GmbH (GSI), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), R3B Collaboration, KVI - Center for Advanced Radiation Technology, Research unit Nuclear & Hadron Physics, Federal Ministry of Education and Research (Germany), Nuclear Astrophysics Virtual Institute (Germany), Helmholtz Association, Science and Technology Facilities Council (UK), Department of Energy (US), Ministerio de Economía y Competitividad (España), Swedish Research Council, Helmholtz Centre for Heavy Ion Research, National Science Foundation (US), and Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Physics, Ion beam, 010308 nuclear & particles physics, Fission, Projectile, Nuclear Theory, Fragmentation (computing), Aucun, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, nuclear fragmentation fission radioactive ion beam facilities C10 C12−18 B10−15 isotope, 0103 physical sciences, Neutron, Física nuclear, Nuclear Experiment (nucl-ex), 010306 general physics, Nucleon, Nuclear Experiment, Excitation, Beam (structure)
Abstract

R. Thies et al.; 9 pags., 7 figs., 1 tab., Background: Models describing nuclear fragmentation and fragmentation fission deliver important input for planning nuclear physics experiments and future radioactive ion beam facilities. These models are usually benchmarked against data from stable beam experiments. In the future, two-step fragmentation reactions with exotic nuclei as stepping stones are a promising tool for reaching the most neutron-rich nuclei, creating a need for models to describe also these reactions. Purpose: We want to extend the presently available data on fragmentation reactions towards the light exotic region on the nuclear chart. Furthermore, we want to improve the understanding of projectile fragmentation especially for unstable isotopes. Method: We have measured projectile fragments from C10,12-18 and B10-15 isotopes colliding with a carbon target. These measurements were all performed within one experiment, which gives rise to a very consistent data set. We compare our data to model calculations. Results: One-proton removal cross sections with different final neutron numbers (1pxn) for relativistic C10,12-18 and B10-15 isotopes impinging on a carbon target. Comparing model calculations to the data, we find that the epax code is not able to describe the data satisfactorily. Using abrabla07 on the other hand, we find that the average excitation energy per abraded nucleon needs to be decreased from 27 MeV to 8.1 MeV. With that decrease abrabla07 describes the data surprisingly well. Conclusions: Extending the available data towards light unstable nuclei with a consistent set of new data has allowed a systematic investigation of the role of the excitation energy induced in projectile fragmentation. Most striking is the apparent mass dependence of the average excitation energy per abraded nucleon. Nevertheless, this parameter, which has been related to final-state interactions, requires further study. ©2016 American Physical Society, We thank the FRS and the GSI accelerator staff for their efforts. This work was supported by the Swedish Research Council. O.T. was supported by the Spanish Research Council under project FPA2012-32443, C.A.B. acknowledges support from the U.S. DOE Grant No. DE-FG02-08ER41533 and the U.S. NSF Grant No. 1415656. L.M.F. acknowledges support by the Spanish Research Council under project FPA2013-41267-P and M.R. was supported by GSI (F&E, DR-ZUBE), German BMBF (06DR134I and 05P09CRFN5), the Nuclear Astrophysics Virtual Institute (NAVI, HGF VHVI- 417) and the Helmholtz Association Detector Technology and Systems Platform. T.K. acknowledges support by the German BMBF No. 06DA9040I, No. 05P12RDFN8, and No. 05P15RDFN1. C.W. acknowledges funding by the UK STFC No. ST/E500651/1, while N.A. and M.F. acknowledge funding by the UK STFC No. ST/F011989/1.

Published
2016

103. First Measurement of Several β-Delayed Neutron Emitting Isotopes Beyond N = 126

Author

Caballero-Folch, R., Domingo-Pardo, C., Agramunt, J., Algora, A., Ameil, F., Arcones, A., Ayyad, Y., Benlliure, J., Borzov, I. N., Bowry, M., Calviño, F., Cano-Ott, D., Cortés, G., Davinson, T., Dillmann, I., Estrade, A., Evdokimov, A., Faestermann, T., Farinon, F., Galaviz, D., García, A. R., Geissel, H., Gelletly, W., Gernhäuser, R., Gómez-Hornillos, M. B., Guerrero, C., Heil, M., Hinke, C., Knöbel, R., Kojouharov, I., Kurcewicz, J., Kurz, N., Litvinov, Yu. A., Maier, L., Marganiec, J., Marketin, T., Marta, M., Martínez, T., Martínez-Pinedo, G., Montes, F., Mukha, I., Napoli, D. R., Nociforo, C., Paradela, C., Pietri, S., Podolyák, Zs., Prochazka, A., Rice, S., Riego, A., Rubio, B., Schaffner, H., Scheidenberger, Ch., Smith, K., Sokol, E., Steiger, K., Sun, B., Taín, J. L., Takechi, M., Testov, D., Weick, H., Wilson, E., Winfield, J. S., Wood, R., Woods, P., and Yeremin, A.

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Nuclear Experiment, β-delayed neutron emission
Abstract

The β-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with β-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb, and Bi in the mass region N ≳ 126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear microscopic and phenomenological models in reproducing the high-energy part of the β- decay strength distribution. This provides important constraints on global theoretical models currently used in r-process nucleosynthesis.

Published
2016

104. Evidence of dynamical dipole excitation in the fusion-evaporation of the Ca 40 + Sm 152 heavy system

Author

Parascandolo, Concetta, Pierroutsakou, D, Alba, R., Del Zoppo, A., Maiolino, C., Santonocito, D., Agodi, C., Baran, V., Boiano, A., Colonna, M., Coniglione, R., De Filippo, E., Di Toro, M., Emanuele, U., Farinon, F., Guglielmetti, A., Inglima, G., LA COMMARA, Marco, Martin, B., Mazzocchi, C., Mazzocco, Marco, Rizzo, C., Romoli, M., Sandoli, M., Signorini, Cosimo, Silvestri, R., Soramel, Francesca, Strano, Emanuele, Torresi, DOMENICO MARIO, Trifirò, A., and Trimarchi, M.

Subjects
Nuclear and High Energy Physics, Nuclear and High, Energy Physics
Published
2016

105. Coulomb dissociation of N-20,N-21

Author

Röder, M., Adachi, T., Aksyutina, Y., Alcantara, J., Altstadt, S., Alvarez-Pol, H., Ashwood, N., Atar, L., Aumann, T., Avdeichikov, V., Barr, M., Beceiro, S., Bemmerer, D., Benlliure, J., Bertulani, C., Boretzky, K., Borge, M., Burgunder, G., Caamano, M., Caesar, C., Casarejos, E., Catford, W., Cederkall, J., Chakraborty, S., Chartier, M., Chulkov, L., Cortina-Gil, D., Crespo, R., Pramanik, U., Diaz-Fernandez, P., Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estrade, A., Farinon, F., Fraile, L., Freer, M., Freudenberger, M., Fynbo, H., Galaviz, D., Geissel, H., Gernhauser, R., Gobel, K., Golubev, P., Diaz, D., Hagdahl, J., Heftrich, T., Heil, M., Heine, M., Heinz, A., Henriques, A., Holl, M., Ickert, G., Ignatov, A., Jakobsson, B., Johansson, H., Jonson, B., Kalantar-Nayestanaki, N., Kanungo, R., Kelic-Heil, A., Knobel, R., Kroll, T., Krucken, R., Kurcewicz, J., Kurz, N., Labiche, M., Langer, C., Le Bleis, T., Lemmon, R., Lepyoshkina, O., Lindberg, S., Machado, J., Marganiec, J., Caro, M., Movsesyan, A., Najafi, M., Nilsson, T., Nociforo, C., Panin, V., Paschalis, S., Perea, A., Petri, M., Pietri, S., Plag, R., Prochazka, A., Rahaman, M., Rastrepina, G., Reifarth, R., Ribeiro, G., Ricciardi, M., Rigollet, C., Riisager, K., Rossi, D., Saez, J., Savran, D., Scheit, H., Simon, H., Sorlin, O., Stoica, V., Streicher, B., Taylor, J., Tengblad, O., Terashima, S., Thies, R., Togano, Y., Uberseder, E., Walle, J., Velho, P., Volkov, V., Wagner, A., Wamers, F., Weick, H., Weigand, M., Wheldon, C., Wilson, G., Wimmer, C., Winfield, J., Woods, P., Yakorev, D., Zhukov, M., Zilges, A., and Zuber, K.

Subjects
Astrophysics::High Energy Astrophysical Phenomena
Abstract

Neutron-rich light nuclei and their reactions play an important role in the creation of chemical elements. Here, data from a Coulomb dissociation experiment on N-20,N-21 are reported. Relativistic N-20,N-21 ions impinged on a lead target and the Coulomb dissociation cross section was determined in a kinematically complete experiment. Using the detailed balance theorem, the N-19(n,gamma)N-20 and N-20(n,gamma)N-21 excitation functions and thermonuclear reaction rates have been determined. The N-19(n,gamma)N-20 rate is up to a factor of 5 higher at T < 1 GK with respect to previous theoretical calculations, leading to a 10% decrease in the predicted fluorine abundance.

Published
2016

106. First measurement of several beta-delayed neutron emitting isotopes beyond N=126

Author

Calviño Tavares, Francisco, Cortés Rossell, Guillem Pere, Algora, A., Benlliure, J., Bowry, M., Cortes, G., Dillmann, I., Estradé, A., Farinon, F., Geissel, H., Gelletly, W., Heil, M., Kurcewicz, J., Marganiec, J., Nociforo, C., Pietri, S., Prochazka, A., Maurice, S., Rubio, B., Smith, K.M, Tain, J. L., Weick, H., Woody, R.W., Universitat Politècnica de Catalunya. Departament de Física, and Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group

Subjects
Neutrons, System, Energies::Energia nuclear [Àrees temàtiques de la UPC], Star mergers, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Early galaxy, Mass formula, Astrophysics, Nuclei, Decay half-lives, Core-collapse supernovae, Strength, R-process nucleosynthesis, Nuclear Experiment
Abstract

The beta-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with beta-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb, and Bi in the mass region N greater than or similar to 126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear microscopic and phenomenological models in reproducing the high-energy part of the beta-decay strength distribution. This provides important constraints on global theoretical models currently used in r-process nucleosynthesis.

Published
2016
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107. First measurement of beta decay half-lives in neutron-rich Tl and Bi isotopes

Author

Benzoni, G, Morales, AI, Bracco, A, Camera, F, Crespi, FCL, Corsi, AM, Leoni, S, Million, B, Nicolini, R, Wieland, O, Valiente-Dobón, JJ, Gottardo, A, de Angelis, G, Napoli, DR, Sahin, E, Lunardi, S, Gadea, A, Algora, A, Bazzacco, D, Farnea, E, Menegazzo, R, Mengoni, D, Recchia, F, Ur, CA, Boutachkov, P, Górska, M, Pietri, S, Weick, H, Cortes, ML, Domingo-Pardo, C, Engert, T, Farinon, F, Geissel, H, Gerl, J, Goel, N, Gregor, E, Habermann, T, Hoischen, R, Kojouharov, I, Kurz, N, Naqvi, F, Nociforo, C, Prochazka, A, Prokopowicz, W, Schaffner, H, Sharma, A, Wollersheim, H-J, Bruce, AM, Denis Bacelar, AM, Grebosz, J, Podolyak, Z, Regan, PH, Al-Dahan, N, Bowry, M, Bunce, M, Deo, AY, Farrelly, GF, Reed, MW, Swan, TPD, Walker, PM, Pfützner, M, Alcántara Núñez, J, Ayyad, Y, Benlliure, J, Alkhomashi, N, Allegro, PRP, Ribas, RV, Casarejos, E, Doncel, M, Dombradi, Z, Eppinger, K, Klupp, S, Steiger, K, Rudolph, D, Janik, R, Sitar, B, Strmen, P, Szarka, I, Mandal, S, and Siwal, D

Subjects
FÍSICA NUCLEAR (INSTRUMENTAÇÃO), Nuclear physics, Physics, Nuclear and High Energy Physics, Computer simulation, chemistry, Isotope, Subatomic Physics, chemistry.chemical_element, Neutron, Uranium, Beta decay
Abstract

Neutron-rich isotopes around lead, beyond N = 126, have been studied exploiting the fragmentation of an uranium primary beam at the FRS-RISING setup at GSI. For the first time beta-decay half-lives of Bi-219 and Tl-211,Tl-212,Tl-213 isotopes have been derived. The half-lives have been extracted using a numerical simulation developed for experiments in high-background conditions. Comparison with state of the art models used in r-process calculations is given, showing a systematic underestimation of the experimental values, at variance from close-lying nuclei. (c) 2012 Elsevier B.V. All rights reserved.

Published
2012

108. Structure of 33Mg sheds new light on the N=20 island of inversion

Author

Kanungo, R., Nociforo, C., Prochazka, A., Utsuno, Y., Aumann, T., Boutin, D., Cortina-Gil, D., Davids, B., Diakaki, M., Farinon, F., Geissel, H., Gernhäuser, R., Gerl, J., Janik, R., Jonson, B., Kindler, B., Knöbel, R., Krücken, R., Lantz, M., Lenske, H., Litvinov, Y., Mahata, K., Maierbeck, P., Musumarra, A., Nilsson, T., Otsuka, T., Perro, C., Scheidenberger, C., Sitar, B., Strmen, P., Sun, B., Szarka, I., Tanihata, I., Weick, H., and Winkler, M.

Subjects
Nuclear and High Energy Physics, Nuclear Experiment
Published
2010
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109. Dynamical Dipole mode in heavy-ion fusion reactions

Author

Parascandolo, C, primary, Pierroutsakou, D, additional, Alba, R, additional, Del Zoppo, A, additional, Maiolino, C, additional, Santonocito, D, additional, Agodi, C, additional, Baran, V, additional, Boiano, A, additional, Colonna, M, additional, Coniglione, R, additional, De Filippo, E, additional, Di Toro, M, additional, Emanuele, U, additional, Farinon, F, additional, Guglielmetti, A, additional, La Commara, M, additional, Martin, B, additional, Mazzocchi, C, additional, Mazzocco, M, additional, Rizzo, C, additional, Romoli, M, additional, Signorini, C, additional, Silvestri, R, additional, Soramel, F, additional, Strano, E, additional, Torresi, D, additional, Trifirò, A, additional, and Trimarchi, M, additional

Published
2017
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110. Thermaization and extraction of $^{238}$U projectile and fission fragments produced at 1000 MeV/u in the prototype cryogenic stopping cell for the LEB

Author

Reiter, M. P., Rink, A., Amjad, F., Ayet San Andres, S., Bergman, J., Dendooven, P., Dickel, T., Diwisch, M., Ebert, J., Estrade, A., Farinon, F., Geissel, H., Greiner, F., Haettner, E., Heisse, F., Hornung, C., Jesch, C., Kalantar, N., Knöbel, R., Kurcewicz, J., Lang, J., Lippert, W., Miskun, I., Moore, I., Mukha, I., Nociforo, Chiara, Petrick, M., Pfuetzner, M., Pietri, S., Plaß, W., Pohjalainen, I., Prochazka, A., Purushothaman, S., Ranjan, M., Rinta-Antila, S., Scheidenberger, C., Takechi, M., Tanaka, Y. K., Weick, H., Winfield, J., Xu, X., and Yavor, M.

Subjects
Physics
Abstract

GSI Scientific Report 2014 - GSI Report 2015-1

Published
2015

111. First measurement of several beta-delayed neutron emitting isotopes beyond N=126

Author

Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Calviño Tavares, Francisco, Cortés Rossell, Guillem Pere, Algora, A., Benlliure, J., Bowry, M., Cortes, G., Dillmann, I., Estradé, A., Farinon, F., Geissel, H., Gelletly, W., Heil, M., Kurcewicz, J., Marganiec, J., Nociforo, C., Pietri, S., Prochazka, A., Maurice, S., Rubio, B., Smith, K.M, Taín Enríquez, José Luis, Weick, H., Woody, R.W., Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group, Calviño Tavares, Francisco, Cortés Rossell, Guillem Pere, Algora, A., Benlliure, J., Bowry, M., Cortes, G., Dillmann, I., Estradé, A., Farinon, F., Geissel, H., Gelletly, W., Heil, M., Kurcewicz, J., Marganiec, J., Nociforo, C., Pietri, S., Prochazka, A., Maurice, S., Rubio, B., Smith, K.M, Taín Enríquez, José Luis, Weick, H., and Woody, R.W.

Abstract

The beta-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with beta-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb, and Bi in the mass region N greater than or similar to 126. These are the heaviest species where neutron emission has been observed so far. These measurements provide key information to evaluate the performance of nuclear microscopic and phenomenological models in reproducing the high-energy part of the beta-decay strength distribution. This provides important constraints on global theoretical models currently used in r-process nucleosynthesis., Postprint (published version)

Published
2016

112. Observation of large enhancements of charge exchange cross sections with neutron-rich carbon isotopes

Author

Universidade de Santiago de Compostela. Departamento de Física de Partículas, Tanihata, I., Terashima, S., Kanungo, R., Ameil, F., Atkinson, J., Ayyad, Y., Cortina Gil, María Dolores, Dillmann, I., Estradé, A., Evdokimov, A., Farinon, F., Geissel, H., Guastalla, G., Janik, R., Knoebel, R., Kurcewicz, J., Litvinov, Yu. A., Marta, M., Mukha, I., Nociforo, C., Ong, H. J., Pietri, S., Prochazka, A., Scheidenberger, C., Sitar, B., Strmen, P., Takechi, M., Tanaka, J., Toki, H., Mostazo Caro, Magdalena, Vargas, J., Winfield, J. S., Weick, H., Universidade de Santiago de Compostela. Departamento de Física de Partículas, Tanihata, I., Terashima, S., Kanungo, R., Ameil, F., Atkinson, J., Ayyad, Y., Cortina Gil, María Dolores, Dillmann, I., Estradé, A., Evdokimov, A., Farinon, F., Geissel, H., Guastalla, G., Janik, R., Knoebel, R., Kurcewicz, J., Litvinov, Yu. A., Marta, M., Mukha, I., Nociforo, C., Ong, H. J., Pietri, S., Prochazka, A., Scheidenberger, C., Sitar, B., Strmen, P., Takechi, M., Tanaka, J., Toki, H., Mostazo Caro, Magdalena, Vargas, J., Winfield, J. S., and Weick, H.

Abstract

Production cross sections of nitrogen isotopes from high-energy (⁠∼950 MeV per nucleon) carbon isotopes on hydrogen and carbon targets have been measured for the first time for a wide range of isotopes (⁠A=12 to 19). The fragment separator FRS at GSI was used to deliver C-isotope beams. The cross sections of the production of N-isotopes were determined by charge measurements of forward-going fragments. The cross sections show a rapid increase with the number of neutrons in the projectile. Since the production of nitrogen is mostly due to charge-exchange (Cex) reactions below the proton separation energies, the present data suggests a concentration of Gamow–Teller and/or Fermi transition strength at low excitation energies for neutron-rich carbon isotopes. It was also observed that the Cex cross sections were enhanced much more strongly for neutron-rich isotopes in the C-target data.

Published
2016

113. INVESTIGATION OF THE DYNAMICAL DIPOLE MODE IN THE Pb-192 MASS REGION

Author

Parascandolo C, Pierroutsakou D, Silvestri R, Agodi C, Alba R, Baran V, Boiano A, Colonna M, Coniglione R., De Filippo E, Del Zoppo A, Di Toro M, Emanuele U, Farinon F, Guglielmetti A, Inglima G, Maiolino C, Martin B, Mazzocco M, Mazzocchi C, Molini P, Rizzo C, Romoli M, Sandoli M, Santonocito D, Signorini C, Soramel F, Trifiro A, Trimarchi M., LA COMMARA, MARCO, Parascandolo, C, Pierroutsakou, D, Silvestri, R, Agodi, C, Alba, R, Baran, V, Boiano, A, Colonna, M, Coniglione, R., De Filippo, E, Del Zoppo, A, Di Toro, M, Emanuele, U, Farinon, F, Guglielmetti, A, Inglima, G, LA COMMARA, Marco, Maiolino, C, Martin, B, Mazzocco, M, Mazzocchi, C, Molini, P, Rizzo, C, Romoli, M, Sandoli, M, Santonocito, D, Signorini, C, Soramel, F, Trifiro, A, and Trimarchi, M.

Published
2011

114. Isomeric decay spectroscopy of the Bi-217 isotope

Author

Gottardo, Andrea, Valiente Dobon, J. J., Benzoni, G., Lunardi, Santo, Gadea, A., Algora, A., Al Dahan, N., de Angelis, G., Ayyad, Y., Bazzacco, D., Benlliure, J., Boutachkov, P., Bowry, M., Bracco, A., Bruce, A. M., Bunce, M., Camera, F., Casarejos, E., Cortes, M. L., Crespi, F. C. L., Corsi, A., Denis Bacelar, A. M., Deo, A. Y., Domingo Pardo, C., Doncel, M., Engert, T., Eppinger, K., Farrelly, G. F., Farinon, F., Farnea, E., Geissel, H., Gerl, J., Goel, N., G?rska, M., Grebosz, J., Gregor, E., Habermann, T., Hoischen, R., Janik, R., John, P. R., Klupp, S., Kojouharov, I., Kurz, N., Lenzi, SILVIA MONICA, Leoni, S., Mandal, S., Menegazzo, R., Mengoni, Daniele, Million, B., Modamio, V., Morales, A. I., Napoli, D. R., Naqvi, F., Nicolini, R., Nociforo, C., Pf?tzner, M., Pietri, S., Podolyak, Z. s., Prochazka, A., Prokopowicz, W., Recchia, Francesco, Regan, P. H., Reed, M. W., Rudolph, D., Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Steiger, K., Strmen, P., Swan, T. P. D., Szarka, I., C. A., Ur, Walker, P. M., Weick, H., Wieland, O., and Wollersheim, H. J.

Published
2014

115. B-13,B-14(n,gamma) via Coulomb Dissociation for Nucleosynthesis towards the r-Process

Author

Altstadt, S. G., Adachi, T., Aksyutina, Y., Alcantara, J., Alvarez-Pol, H., Ashwood, N., Atar, L., Aumann, T., Avdeichikov, V., Barr, M., Beceiro, S., Bemmerer, D., Benlliure, J., Bertulani, C. A., Boretzky, K., Borge, M. J. G., Burgunder, G., Caamano, M., Caesar, C., Casarejos, E., Catford, W., Cederkall, J., Chakraborty, S., Chartier, M., Chulkov, L., Cortina-Gil, D., Pramanik, U. Datta, Fernandez, P. Diaz, Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estrade, A., Farinon, F., Fraile, L. M., Freer, M., Freudenberger, M., Fynbo, H. O. U., Galaviz, D., Geissel, H., Gernhaeuser, R., Goebel, K., Golubev, P., Gonzalez Diaz, D., Kalantar-Nayestanaki, N., Najafi, M. A., Rigollet, C., Stoica, V., Streicher, B., Van de Walle, J., and Research unit Nuclear & Hadron Physics

Subjects
LIGHT
Abstract

Radioactive beams of B-14,B-15 produced by fragmentation of a primary Ar-40 beam were directed onto a Pb target to investigate the neutron breakup within the Coulomb field. The experiment was performed at the LAND/(RB)-B-3 setup. Preliminary results for the Coulomb dissociation cross sections as well as for the astrophysically interesting inverse reactions, B-13,B-14(n,gamma), are presented.

Published
2014

116. First Experimental Constraint on the Fe-59(n, gamma)Fe-60 Reaction Cross Section at Astrophysical Energies via the Coulomb Dissociation of Fe-60

Author

Uberseder, E., Adachi, T., Aumann, T., Beceiro-Novo, S., Boretzky, K., Caesar, C., Dillmann, I., Ershova, O., Estrade, A., Farinon, F., Hagdahl, J., Heftrich, T., Heil, M., Heine, M., Holl, M., Ignatov, A., Johansson, H. T., Kalantar, N., Langer, C., Le Bleis, T., Litvinov, Yu. A., Marganiec, J., Movsesyan, A., Najafi, M. A., Nilsson, T., Nociforo, C., Panin, V., Pietri, S., Plag, R., Prochazka, A., Rastrepina, G., Reifarth, R., Ricciardi, V., Rigollet, C., Rossi, D. M., Savran, D., Simon, H., Sonnabend, K., Streicher, B., Terashima, S., Thies, R., Togano, Y., Volkov, V., Wamers, F., Weick, H., Weigand, M., Wiescher, M., Wimmer, C., Winckler, N., Woods, P. J., and Research unit Nuclear & Hadron Physics

Subjects
CORE-COLLAPSE SUPERNOVAE, RAY LINE EMISSION, AL-26, RESONANCE NEUTRON-CAPTURE, STRENGTH FUNCTIONS, NUCLEAR, MODEL-CALCULATIONS, SOLAR METALLICITY, RELATIVISTIC HEAVY-IONS, MASSIVE STARS
Abstract

The radionuclide Fe-60 has been of great interest to the nuclear astrophysics community for over a decade. An initial discrepancy between the observed and modeled Galactic Fe-60/Al-26 ratio motivated numerous studies focused on the nucleosynthesis of these two isotopes, though the cross section of the primary astrophysical production reaction, Fe-59(n,gamma)Fe-60, has remained purely theoretical. The present work offers a first experimental constraint on the Fe-59(n,gamma)Fe-60 cross section at astrophysical energies, obtained indirectly via Coulomb dissociation, and demonstrates that the theoretical reaction rates used in present stellar models are not highly erroneous.

Published
2014

117. First Experimental Constraint on the 59Fe(n,γ)60Fe Reaction Cross Section at Astrophysical Energies via the Coulomb Dissociation of 60Fe

Author

Uberseder, E., Adachi, T., Aumann, T., Beceiro-Novo, S., Boretzky, K., Caesar, C., Dillmann, I., Ershova, O., Estrade, A., Farinon, F., Hagdahl, J., Heftrich, T., Heil, M., Heine, M. (Marcel), Holl, M., Ignatov, A., Johansson, H. T., Kalantar, N., Langer, C., Le Bleis, T., Litvinov, Yu. A., Marganiec, J., Movsesyan, A., Najafi, M. A., Nilsson, T., Nociforo, C., Panin, V., Pietri, S., Plag, R., Prochazka, A., Rastrepina, G., Reifarth, R., Ricciardi, V., Rigollet, C., Rossi, D. M., Savran, D., Simon, H., Sonnabend, K., Streicher, B., Terashima, S., Thies, R., Togano, Y., Volkov, V., Wamers, F., Weick, H., Weigand, M., Wiescher, M., Wimmer, C., Winckler, N., and Woods, P. J.

Subjects
Aucun
Published
2014

118. Performance of the Prototype Cryogenic Stopping Cell for the Low-Energy Branch of the Super-FRS

Author

Reiter, M. P., Rink, A-K., Dendooven, P., Dickel, T., Ebert, J., Geissel, H., Haettner, E., Jesch, C., Plaß, Wolfgang, Purushothaman, S., Ranjan, M., Weick, Helmut, Amjad, F., Ayet, S., Diwisch, M., Estrade, A., Farinon, F., Greiner, F., Hornung, C., Kalantar-Nayestanaki, N., Knoebel, R., Kurcewicz, J., Lang, J., Moore, I., Mukha, I., Nociforo, C., Petrick, M., Pfutzner, M., Pietri, S., Prochazka, A., Rinta-Antila, S., Scheidenberger, C., Takechi, M., Tanaka, Y., Winfield, J. S., and Yavor, M. I.

Subjects
Physics
Abstract

GSI Scientific Report 2013 - GSI Report 2014-1

Published
2014

119. Measurement of $\beta$-delayed neutrons around the third r-process peak

Author

Caballero-Folch, R., Domingo-Pardo, C., Cortes, G., Davinson, T., Dillmann, I., Estrade, A., Evdokimov, Alexei, Faestermann, T., Farinon, F., Galaviz, D., Garcia-Rios, A., Geissel, H., Agramunt, J., Gelletly, W., Gernhäuser, R., Gomez-Hornillos, M. B., Guerrero, C., Heil, M., Hinke, C., Knöbel, R., Kojouharov, I., Kurcewicz, J., Kurz, N., Algora, A., Litvinov, Y., Maier, L., Marganiec, J., Marta, M., Martinez, T., Montes, F., Mukha, I., Napoli, D. R., Nociforo, C., Paradela, C., Ameil, F., Pietri, S., Podolyak, Z., Prochazka, A., Rice, S., Riego, A., Rubio, B., Schaffner, H., Scheidenberger, C., Smith, K., Sokol, E., Ayyad, Y., Steiger, K., Sun, B., Tain, J. L., Takechi, M., Testov, D., Weick, H., Wilson, E., Winfield, J. S., Wood, R., Woods, P., Benlliure, J., Yeremin, A., Bowry, M., Calvino, F., and Cano-Ott, D.

Subjects
Physics
Abstract

GSI Scientific Report 2013 - GSI Report 2014-1

Published
2014
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120. Increased lifetime of hydrogen-like $^{192m}Os$ observed in the ESR

Author

Akber, A., Reed, M. W., Deo, A. Y., Detwiler, B., Dimopoulou, C., Dracoulis, G. D., Farinon, F., Geissel, H., Haettner, E., Heil, M., Kempley, R. S., Kibedi, T., Walker, P. M., Knöbel, R., Kozhuharov, C., Kurcewicz, J., Kuzminchuk, N., Lane, G. J., Litvinov, S., Liu, Z., Mao, R., Nociforo, C., Nolden, F., Cullen, I. J., Plaß, Wolfgang, Prochazka, A., Scheidenberger, C., Shubina, D., Steck, M., Stöhlker, T., Sun, B., Swan, T. P. D., Trees, G., Weick, H., Litvinov, Yury, Winckler, N., Winkler, M., Woods, P. J., Yamaguchi, T., Blaum, K., Bosch, F., Brandau, C., Carroll, J. J., and Cullen, D. M.

Subjects
Physics
Abstract

GSI Scientific Report 2013 - GSI Report 2014-1

Published
2014
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121. Isomeric Decay Spectroscopy of the 217Bi Isotope

Author

Gottardo, A., Valiente-Dobón, J. J., Benzoni, G., Lunardi, S., Gadea, A., Algora, A., Al-Dahan, N., de Angelis, G., Ayyad, Y., Bazzacco, D., Benlliure, J., Boutachkov, P., Bowry, M., Bracco, A., Bruce, A. M., Bunce, M., Camera, F., Casarejos, E., Cortes, M. L., Crespi, F. C. L., Corsi, A., Denis Bacelar, A. M., Deo, A. Y., Domingo-Pardo, C., Doncel, M., Engert, T., Eppinger, K., Farrelly, G. F., Farinon, F., Farnea, E., Geissel, H., Gerl, J., Goel, N., Górska, M., Grebosz, J., Gregor, E., Habermann, T., Hoischen, Robert, Janik, R., John, P. R., Klupp, S., Kojouharov, I., Kurz, N., Lenzi, S. M., Leoni, S., Mandal, S., Menegazzo, R., Mengoni, D., Million, B., Modamio, V., Morales, A. I., Napoli, D. R., Naqvi, F., Nicolini, R., Nociforo, C., Pfützner, M., Pietri, S., Podolyák, Zs., Prochazka, A., Prokopowicz, W., Recchia, F., Regan, P. H., Reed, M. W., Rudolph, Dirk, Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Steiger, K., Strmen, P., Swan, T. P. D., Szarka, I., Ur, C. A., Walker, P. M., Weick, H., Wieland, O., and Wollersheim, H-J.

Subjects
gamma-ray spectroscopy, Subatomic Physics, isomer decay, Nuclear Experiment, RISING spectrometer, relativistic projectile fragmentation
Abstract

The structure of the neutron-rich bismuth isotope 217Bi has been studied for the first time. The fragmentation of a primary 238U beam at the FRS-RISING setup at GSI was exploited to perform γ-decay spectroscopy, since μs isomeric states were expected in this nucleus. Gamma rays following the decay of a t1/2=3 μs isomer were observed, allowing one to establish the low-lying structure of 217Bi. The level energies and the reduced electric quadrupole transition probability B(E2) from the isomeric state are compared to large-scale shell-model calculations.

Published
2014

122. New Isomers in the Neutron-Rich Region Beyond Pb-208

Author

Gottardo, A, Valiente-Dobon, JJ, Benzoni, G, Gadea, A, Lunardi, S, Boutachkov, P, Bruce, AM, Gorska, M, Grebosz, J, Pietri, S, Podolyak, Z, Pfuetzner, M, Regan, PH, Weick, H, Alcantara Nunez, J, Algora, A, Al-Dahan, N, de Angelis, G, Ayyad, Y, Alkhomashi, N, Allegro, PRP, Bazzacco, D, Benlliure, J, Bowry, M, Bracco, A, Bunce, M, Camera, F, Casarejos, E, Cortes, ML, Crespi, FCL, Corsi, A, Bacelar, AMD, Deo, AY, Domingo-Pardo, C, Doncel, M, Dombradi, Z, Engert, T, Eppinger, K, Farrelly, GF, Farinon, F, Farnea, E, Geissel, H, Gerl, J, Goel, N, Gregor, E, Habermann, T, Hoischen, R, Janik, R, John, PR, Klupp, S, Kojouharov, I, Kurz, N, Lenzi, SM, Leoni, S, Mandal, S, Menegazzo, R, Mengoni, D, Million, B, Modamio, V, Morales, AI, Napoli, DR, Naqvi, F, Nicolini, R, Nociforo, C, Prochazka, A, Prokopowicz, W, Recchia, F, Ribas, RV, Reed, MW, Rudolph, D, Sahin, E, Schaffner, H, Sharma, A, Sitar, B, Siwal, D, Steiger, K, Strmen, P, Swan, TPD, Szarka, I, Ur, CA, Walker, PM, Wieland, O, Wollersheim, H-J, Bizzeti, PG, Kabana, S, Bucci, C, Chiari, M, Dainese, A, DiNezza, P, Nannini, A, Signorini, C, and ValienteDobon, JJ

Published
2014

123. β -decay and β -delayed Neutron Emission Measurements at GSI-FRS Beyond N=126N=126, for r-process Nucleosynthesis

Author

Caballero-Folch, R., Domingo-Pardo, C., Cortès, G., Taín, J.L., Agramunt, J., Algora, A., Ameil, F., Ayyad, Y., Benlliure, J., Bowry, M., Calviño, F., Cano-Ott, D., Davinson, T., Dillmann, I., Estrade, A., Evdokimov, A., Faestermann, T., Farinon, F., Galaviz, D., García-Ríos, A., Geissel, H., Gelletly, W., Gernhäuser, R., Gómez-Hornillos, M.B., Guerrero, C., Heil, M., Hinke, C., Knöbel, R., Kojouharov, I., Kurcewicz, J., Kurz, N., Litvinov, Y., Maier, L., Marganiec, J., Marta, M., Martíne, T., Montes, F., Mukha, I., Napoli, D.R., Nociforo, C., Paradela, C., Pietri, S., Podolyák, Zs., Prochazka, A., Rice, S., Riego, A., Rubio, B., Schaffner, H., Scheidenberger, C., Smith, K., Sokol, E., Steiger, K., Sun, B., Takechi, M., Testov, D., Weick, H., Wilson, E., Winfield, J.S., Wood, R., Woods, P.J., Yeremin, A., Institut de Physique Nucléaire d'Orsay (IPNO), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

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

New measurements of very exotic nuclei in the neutron-rich region beyond N=126 have been performed at the GSI facility with the fragment separator (FRS). The aim of the experiment is to determine half-lives and β-delayed neutron emission branching ratios of isotopes of Hg, Tl and Pb in this region. This contribution summarizes final counting statistics for identification and for implantation, as well as the present status of the data analysis of the half-lives. In summary, isotopes of Pt, Au, Hg, Tl, Pb, Bi, Po, At, Rn and Fr were clearly identified and several of them (208-211Hg, 211-215Tl, 214-218Pb) were implanted with enough statistics to determine their half-lives. About half of them are expected to be neutron emitters, in such cases it will become possible to obtain the neutron emission probabilities, Pn.

Published
2014

124. New μs isomers in the neutron-rich 210Hg nucleus

Author

Gottardo, A., Valiente-Dobón, J.J., Benzoni, G., Gadea, A., Lunardi, S., Boutachkov, P., Bruce, A.M., Górska, M., Grebosz, J., Pietri, S., Podolyák, Zs., Pfützner, M., Regan, P.H., Weick, H., Alcántara Núñez, J., Algora, A., Al-Dahan, N., de Angelis, G., Ayyad, Y., Alkhomashi, N., Allegro, P.R.P., Bazzacco, D., Benlliure, J., Bowry, M., Bracco, A., Bunce, M., Camera, F., Casarejos, E., Cortes, M.L., Crespi, F.C.L., Corsi, A., Denis Bacelar, A.M., Deo, A.Y., Domingo-Pardo, C., Doncel, M., Dombradi, Zs., Engert, T., Eppinger, K., Farrelly, G.F., Farinon, F., Farnea, E., Geissel, H., Gerl, J., Goel, N., Gregor, E., Habermann, T., Hoischen, R., Janik, R., John, P.R., Klupp, S., Kojouharov, I., Kurz, N., Lenzi, S.M., Leoni, S., Mandal, S., Menegazzo, R., Mengoni, D., Million, B., Modamio, V., Morales, A.I., Napoli, D.R., Naqvi, F., Nicolini, R., Nociforo, C., Prochazka, A., Prokopowicz, W., Recchia, F., Ribas, R.V., Reed, M.W., Rudolph, D., Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Steiger, K., Strmen, P., Swan, T.P.D., Szarka, I., Ur, C.A., Walker, P.M., Wieland, O., and Wollersheim, H.-J.

Published
2013
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125. The population of metastable states as a probe of relativistic-energy fragmentation reactions

Author

Denis Bacelar, A.M., Bruce, A.M., Podolyák, Zs., Al-Dahan, N., Górska, M., Lalkovski, S., Pietri, S., Ricciardi, M.V., Algora, A., Alkhomashi, N., Benlliure, J., Boutachkov, P., Bracco, A., Calore, E., Casarejos, E., Cullen, I.J., Deo, A.Y., Detistov, P., Dombradi, Zs., Domingo-Pardo, C., Doncel, M., Farinon, F., Farrelly, G.F., Geissel, H., Gelletly, W., Gerl, J., Goel, N., Grȩbosz, J., Hoischen, R., Kojouharov, I., Kurz, N., Leoni, S., Molina, F., Montanari, D., Morales, A.I., Musumarra, A., Napoli, D.R., Nicolini, R., Nociforo, C., Prochazka, A., Prokopowicz, W., Regan, P.H., Rubio, B., Rudolph, D., Schmidt, K.-H., Schaffner, H., Steer, S.J., Steiger, K., Strmen, P., Swan, T.P.D., Szarka, I., Valiente-Dobón, J.J., Verma, S., Walker, P.M., Weick, H., and Wollersheim, H.J.

Published
2013
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126. Proton Distribution Radii ofC12–19Illuminate Features of Neutron Halos

Author

Kanungo, R., primary, Horiuchi, W., additional, Hagen, G., additional, Jansen, G. R., additional, Navratil, P., additional, Ameil, F., additional, Atkinson, J., additional, Ayyad, Y., additional, Cortina-Gil, D., additional, Dillmann, I., additional, Estradé, A., additional, Evdokimov, A., additional, Farinon, F., additional, Geissel, H., additional, Guastalla, G., additional, Janik, R., additional, Kimura, M., additional, Knöbel, R., additional, Kurcewicz, J., additional, Litvinov, Yu. A., additional, Marta, M., additional, Mostazo, M., additional, Mukha, I., additional, Nociforo, C., additional, Ong, H. J., additional, Pietri, S., additional, Prochazka, A., additional, Scheidenberger, C., additional, Sitar, B., additional, Strmen, P., additional, Suzuki, Y., additional, Takechi, M., additional, Tanaka, J., additional, Tanihata, I., additional, Terashima, S., additional, Vargas, J., additional, Weick, H., additional, and Winfield, J. S., additional

Published
2016
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127. Parameter-free calculation of charge-changing cross sections at high energy

Author

Suzuki, Y., primary, Horiuchi, W., additional, Terashima, S., additional, Kanungo, R., additional, Ameil, F., additional, Atkinson, J., additional, Ayyad, Y., additional, Cortina-Gil, D., additional, Dillmann, I., additional, Estradé, A., additional, Evdokimov, A., additional, Farinon, F., additional, Geissel, H., additional, Guastalla, G., additional, Janik, R., additional, Knoebel, R., additional, Kurcewicz, J., additional, Litvinov, Yu. A., additional, Marta, M., additional, Mostazo, M., additional, Mukha, I., additional, Nociforo, C., additional, Ong, H. J., additional, Pietri, S., additional, Prochazka, A., additional, Scheidenberger, C., additional, Sitar, B., additional, Strmen, P., additional, Takechi, M., additional, Tanaka, J., additional, Tanihata, I., additional, Vargas, J., additional, Weick, H., additional, and Winfield, J. S., additional

Published
2016
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128. First Measurement of Severalβ-Delayed Neutron Emitting Isotopes BeyondN=126

Author

Caballero-Folch, R., primary, Domingo-Pardo, C., additional, Agramunt, J., additional, Algora, A., additional, Ameil, F., additional, Arcones, A., additional, Ayyad, Y., additional, Benlliure, J., additional, Borzov, I. N., additional, Bowry, M., additional, Calviño, F., additional, Cano-Ott, D., additional, Cortés, G., additional, Davinson, T., additional, Dillmann, I., additional, Estrade, A., additional, Evdokimov, A., additional, Faestermann, T., additional, Farinon, F., additional, Galaviz, D., additional, García, A. R., additional, Geissel, H., additional, Gelletly, W., additional, Gernhäuser, R., additional, Gómez-Hornillos, M. B., additional, Guerrero, C., additional, Heil, M., additional, Hinke, C., additional, Knöbel, R., additional, Kojouharov, I., additional, Kurcewicz, J., additional, Kurz, N., additional, Litvinov, Yu. A., additional, Maier, L., additional, Marganiec, J., additional, Marketin, T., additional, Marta, M., additional, Martínez, T., additional, Martínez-Pinedo, G., additional, Montes, F., additional, Mukha, I., additional, Napoli, D. R., additional, Nociforo, C., additional, Paradela, C., additional, Pietri, S., additional, Podolyák, Zs., additional, Prochazka, A., additional, Rice, S., additional, Riego, A., additional, Rubio, B., additional, Schaffner, H., additional, Scheidenberger, Ch., additional, Smith, K., additional, Sokol, E., additional, Steiger, K., additional, Sun, B., additional, Taín, J. L., additional, Takechi, M., additional, Testov, D., additional, Weick, H., additional, Wilson, E., additional, Winfield, J. S., additional, Wood, R., additional, Woods, P., additional, and Yeremin, A., additional

Published
2016
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129. Evidence of dynamical dipole excitation in the fusion-evaporation of theCa40+Sm152heavy system

Author

Parascandolo, C., primary, Pierroutsakou, D., additional, Alba, R., additional, Del Zoppo, A., additional, Maiolino, C., additional, Santonocito, D., additional, Agodi, C., additional, Baran, V., additional, Boiano, A., additional, Colonna, M., additional, Coniglione, R., additional, De Filippo, E., additional, Di Toro, M., additional, Emanuele, U., additional, Farinon, F., additional, Guglielmetti, A., additional, Inglima, G., additional, La Commara, M., additional, Martin, B., additional, Mazzocchi, C., additional, Mazzocco, M., additional, Rizzo, C., additional, Romoli, M., additional, Sandoli, M., additional, Signorini, C., additional, Silvestri, R., additional, Soramel, F., additional, Strano, E., additional, Torresi, D., additional, Trifirò, A., additional, and Trimarchi, M., additional

Published
2016
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130. Observation of large enhancements of charge exchange cross sections with neutron-rich carbon isotopes

Author

Tanihata, I., primary, Terashima, S., additional, Kanungo, R., additional, Ameil, F., additional, Atkinson, J., additional, Ayyad, Y., additional, Cortina-Gil, D., additional, Dillmann, I., additional, Estradé, A., additional, Evdokimov, A., additional, Farinon, F., additional, Geissel, H., additional, Guastalla, G., additional, Janik, R., additional, Knoebel, R., additional, Kurcewicz, J., additional, Litvinov, Yu. A., additional, Marta, M., additional, Mostazo, M., additional, Mukha, I., additional, Nociforo, C., additional, Ong, H. J., additional, Pietri, S., additional, Prochazka, A., additional, Scheidenberger, C., additional, Sitar, B., additional, Strmen, P., additional, Takechi, M., additional, Tanaka, J., additional, Toki, H., additional, Vargas, J., additional, Winfield, J. S., additional, and Weick, H., additional

Published
2016
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131. Approaching the precursor nuclei of the third r-process peak with RIBs

Author

Domingo-Pardo, C, primary, Caballero-Folch, R, additional, Agramunt, J, additional, Algora, A, additional, Arcones, A, additional, Ameil, F, additional, Ayyad, Y, additional, Benlliure, J, additional, Bowry, M, additional, Calviño, F, additional, Cano-Ott, D, additional, Cortés, G, additional, Davinson, T, additional, Dillmann, I, additional, Estrade, A, additional, Evdokimov, A, additional, Faestermann, T, additional, Farinon, F, additional, Galaviz, D, additional, García-Rios, A, additional, Geissel, H, additional, Gelletly, W, additional, Gernhäuser, R, additional, Gómez-Hornillos, M B, additional, Guerrero, C, additional, Heil, M, additional, Hinke, C, additional, Knöbel, R, additional, Kojouharov, I, additional, Kurcewicz, J, additional, Kurz, N, additional, Litvinov, Y, additional, Maier, L, additional, Marganiec, J, additional, Marta, M, additional, Martínez, T, additional, Martínez-Pinedo, G, additional, Meyer, B S, additional, Montes, F, additional, Mukha, I, additional, Napoli, D R, additional, Nociforo, Ch, additional, Paradela, C, additional, Pietri, S, additional, Podolyák, Z, additional, Prochazka, A, additional, Rice, S, additional, Riego, A, additional, Rubio, B, additional, Schaffner, H, additional, Scheidenberger, Ch, additional, Smith, K, additional, Sokol, E, additional, Steiger, K, additional, Sun, B, additional, Taín, J L, additional, Takechi, M, additional, Testov, D, additional, Weick, H, additional, Wilson, E, additional, Winfield, J S, additional, Wood, R, additional, Woods, P, additional, and Yeremin, A, additional

Published
2016
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132. Dynamical Dipole mode in the40,48Ca +152,144Sm fusion reactions at 11 MeV/nucleon

Author

Parascandolo, C., primary, Pierroutsakou, D., additional, Alba, R., additional, Del Zoppo, A., additional, Maiolino, C., additional, Santonocito, D., additional, Agodi, C., additional, Baran, V., additional, Boiano, A., additional, Colonna, M., additional, Coniglione, R., additional, De Filippo, E., additional, Di Toro, M., additional, Emanuele, U., additional, Farinon, F., additional, Guglielmetti, A., additional, La Commara, M., additional, Martin, B., additional, Mazzocchi, C., additional, Mazzocco, M., additional, Rizzo, C., additional, Romoli, M., additional, Signorini, C., additional, Silvestri, R., additional, Soramel, F., additional, Strano, E., additional, Torresi, D., additional, Trifirò, A., additional, and Trimarchi, M., additional

Published
2016
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133. Increased isomeric lifetime of hydrogen-like Os-192m

Author

Akber, A, Reed, MW, Walker, PM, Litvinov, YA, Lane, GJ, Kibedi, T, Blaum, K, Bosch, F, Brandau, C, Carroll, JJ, Cullen, DM, Cullen, IJ, Deo, AY, Detwiler, B, Dimopoulou, C, Dracoulis, GD, Farinon, F, Geissel, H, Haettner, E, Heil, M, Kempley, RS, Knoebel, R, Kozhuharov, C, Kurcewicz, J, Kuzminchuk, N, Litvinov, S, Liu, Z, Mao, R, Nociforo, C, Nolden, F, Plass, WR, Podolyak, Z, Prochazka, A, Scheidenberger, C, Shubina, D, Steck, M, Stoehlker, T, Sun, B, Swan, TPD, Trees, G, Weick, H, Winckler, N, Winkler, M, Woods, PJ, Yamaguchi, T, Akber, A, Reed, MW, Walker, PM, Litvinov, YA, Lane, GJ, Kibedi, T, Blaum, K, Bosch, F, Brandau, C, Carroll, JJ, Cullen, DM, Cullen, IJ, Deo, AY, Detwiler, B, Dimopoulou, C, Dracoulis, GD, Farinon, F, Geissel, H, Haettner, E, Heil, M, Kempley, RS, Knoebel, R, Kozhuharov, C, Kurcewicz, J, Kuzminchuk, N, Litvinov, S, Liu, Z, Mao, R, Nociforo, C, Nolden, F, Plass, WR, Podolyak, Z, Prochazka, A, Scheidenberger, C, Shubina, D, Steck, M, Stoehlker, T, Sun, B, Swan, TPD, Trees, G, Weick, H, Winckler, N, Winkler, M, Woods, PJ, and Yamaguchi, T

Published
2015

134. New μs isomers in the neutron-rich Hg nucleus

Author

Gottardo, A, Valiente-Dobón, JJ, de Angelis, G, Modamio, V, Napoli, DR, Sahin, E, Lunardi, S, Algora, A, John, PR, Lenzi, SM, Benzoni, G, Bracco, A, Camera, F, Crespi, FCL, Corsi, A, Leoni, S, Million, B, Morales, AI, Nicolini, R, Wieland, O, Gadea, A, Bazzacco, D, Farnea, E, Menegazzo, R, Mengoni, D, Recchia, F, Ur, CA, Boutachkov, P, Górska, M, Pietri, S, Weick, H, Cortes, ML, Domingo-Pardo, C, Engert, T, Farinon, F, Geissel, H, Gerl, J, Goel, N, Gregor, E, Habermann, T, Hoischen, R, Kojouharov, I, Kurz, N, Naqvi, F, Nociforo, C, Prochazka, A, Prokopowicz, W, Schaffner, H, Sharma, A, Wollersheim, H-J, Bruce, AM, Bunce, M, Denis Bacelar, AM, Grebosz, J, Podolyák, Z, Regan, PH, Al-Dahan, N, Bowry, M, Deo, AY, Farrelly, GF, Reed, MW, Swan, TPD, Walker, PM, Pfützner, M, Ayyad, Y, Benlliure, J, Alcántara Núñez, J, Alkhomashi, N, Allegro, PRP, Ribas, RV, Casarejos, E, Doncel, M, Dombradi, Z, Eppinger, K, Klupp, S, Steiger, K, Rudolph, D, Janik, R, Sitar, B, Strmen, P, Szarka, I, Mandal, S, and Siwal, D

Abstract

Neutron-rich nuclei in the lead region, beyond N=126, have been studied at the FRS-RISING setup at GSI, exploiting the fragmentation of a primary uranium beam. Two isomeric states have been identified in Hg: the 8 isomer expected from the seniority scheme in the νg shell and a second one at low spin and low excitation energy. The decay strength of the 8 isomer confirms the need of effective three-body forces in the case of neutron-rich lead isotopes. The other unexpected low-lying isomer has been tentatively assigned as a 3 state, although this is in contrast with theoretical expectations. © 2013 Elsevier B.V..

Published
2013

135. Beyond the neutron drip line: The unbound oxygen isotopes O-25 and O-26

Author

Caesar, C., Simonis, J., Adachi, T., Aksyutina, Y., Alcantara, J., Altstadt, S., Alvarez-Pol, H., Ashwood, N., Aumann, T., Avdeichikov, V., Barr, M., Beceiro, S., Bemmerer, D., Benlliure, J., Bertulani, C. A., Boretzky, K., Borge, M. J. G., Burgunder, G., Caamano, M., Casarejos, E., Catford, W., Cederkaell, J., Chakraborty, S., Chartier, M., Chulkov, L., Cortina-Gil, D., Pramanik, U. Datta, Fernandez, P. Diaz, Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estrade, A., Farinon, F., Fraile, L. M., Freer, M., Freudenberger, M., Fynbo, H. O. U., Galaviz, D., Geissel, H., Gernhaeuser, R., Golubev, P., Diaz, D. Gonzalez, Hagdahl, J., Heftrich, T., Heil, M., Kalantar-Nayestanaki, N., Rigollet, C., Streicher, B., Van de Walle, J., and KVI - Center for Advanced Radiation Technology

Subjects
Nuclear Theory, RICH NUCLEI, PARTICLE STABILITY, Nuclear Experiment, DETECTOR, RELATIVISTIC HEAVY-IONS
Abstract

The very neutron-rich oxygen isotopes O-25 and O-26 are investigated experimentally and theoretically. The unbound states are populated in an experiment performed at the R3B-LAND setup at GSI via proton-knockout reactions from F-26 and F-27 at relativistic energies around 442 and 414 MeV/nucleon, respectively. From the kinematically complete measurement of the decay into O-24 plus one or two neutrons, the O-25 ground-state energy and width are determined, and upper limits for the O-26 ground-state energy and lifetime are extracted. In addition, the results provide indications for an excited state in O-26 at around 4 MeV. The experimental findings are compared to theoretical shell-model calculations based on chiral two- and three-nucleon (3N) forces, including for the first time residual 3N forces, which are shown to be amplified as valence neutrons are added.

Published
2013

136. Beyond the neutron drip line: The unbound oxygen isotopes O and O

Author

Caesar, C., Simonis, J., Adachi, T., Aksyutina, Y., Alcantara, J., Altstadt, S., Alvarez-Pol, H., Ashwood, N., Aumann, T., Avdeichikov, V., Barr, M., Beceiro, S., Bemmerer, D., Benlliure, J., Bertulani, C. A., Boretzky, K., Borge, M. J. G., Burgunder, G., Caamano, M., Casarejos, E., Catford, W., Cederkäll, J., Chakraborty, S., Chartier, M., Chulkov, L., Cortina-Gil, D., Datta Pramanik, U., Diaz Fernandez, P., Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estrade, A., Farinon, F., Fraile, L. M., Freer, M., Freudenberger, M., Fynbo, H. O. U., Galaviz, D., Geissel, H., Gernhäuser, R., Golubev, P., Gonzalez Diaz, D., Hagdahl, J., Heftrich, T., Heil, M., Heine, M., Heinz, A., Henriques, A., Holl, M., Holt, J. D., Ickert, G., Ignatov, A., Jakobsson, B., Johansson, H. T., Jonson, B., Kalantar-Nayestanaki, N., Kanungo, R., Kelic-Heil, A., Knöbel, R., Kröll, T., Krücken, R., Kurcewicz, J., Labiche, M., Langer, C., Le Bleis, T., Lemmon, R., Lepyoshkina, O., Lindberg, S., Machado, J., Marganiec, J., Maroussov, V., Menéndez, J., Mostazo, M., Movsesyan, A., Najafi, A., Nilsson, T., Nociforo, C., Panin, V., Perea, A., Pietri, S., Plag, R., Prochazka, A., Rahaman, A., Rastrepina, G., Reifarth, R., Ribeiro, G., Ricciardi, M. V., Rigollet, C., Riisager, K., Röder, M., Rossi, D., Sanchez del Rio, J., Savran, D., Scheit, H., Schwenk, A., Simon, H., Sorlin, O., Stoica, V., Streicher, B., Taylor, J., Tengblad, O., Terashima, S., Thies, R., Togano, Y., Uberseder, E., Van de Walle, J., Velho, P., Volkov, V., Wagner, A., Wamers, F., Weick, H., Weigand, M., Wheldon, C., Wilson, G., Wimmer, C., Winfield, J. S., Woods, P., Yakorev, D., Zhukov, M. V., Zilges, A., Zoric, M., and Zuber, K.

Subjects
Aucun
Published
2013

137. Schottky mass measurements of heavy neutron-rich nuclides in the element range $70\leq Z\leq 79$ at the ESR

Author

Shubina, D., Cakirli, R. B., Litvinov, Yu. A., Blaum, K., Brandau, C., Bosch, F., Carroll, J. J., Casten, R. F., Cullen, D. M., Cullen, I. J., Deo, A. Y., Detwiler, B., Dimopoulou, C., Farinon, F., Geissel, H., Haettner, E., Heil, M., Kempley, R. S., Kozhuharov, C., Kn��bel, R., Kurcewicz, J., Kuzminchuk, N., Litvinov, S. A., Liu, Z., Mao, R., Nociforo, C., Nolden, F., Patyk, Z., Plass, W. R., Prochazka, A., Reed, M. W., Sanjari, M. S., Scheidenberger, C., Steck, M., St��hlker, Th., Sun, B., Swan, T. P. D., Trees, G., Walker, P. M., Weick, H., Winckler, N., Winkler, M., Woods, P. J., Yamaguchi, T., and Zhou, C.

Subjects
Nuclear Theory, FOS: Physical sciences, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

Storage-ring mass spectrometry was applied to neutron-rich $^{197}$Au projectile fragments. Masses of $^{181,183}$Lu, $^{185,186}$Hf, $^{187,188}$Ta, $^{191}$W, and $^{192,193}$Re nuclei were measured for the first time. The uncertainty of previously known masses of $^{189,190}$W and $^{195}$Os nuclei was improved. Observed irregularities on the smooth two-neutron separation energies for Hf and W isotopes are linked to the collectivity phenomena in the corresponding nuclei., 10 pages, 9 figures, 2 tables

Published
2013

138. Schottky mass measurements of heavy neutron-rich nuclides in the element range 70 <= Z <= 79 at the GSI Experimental Storage Ring

Author

Shubina, D, Cakirli, RB, Litvinov, YA, Blaum, K, Brandau, C, Bosch, F, Carroll, JJ, Casten, RF, Cullen, DM, Cullen, IJ, Deo, AY, Detwiler, B, Dimopoulou, C, Farinon, F, Geissel, H, Haettner, E, Heil, M, Kempley, RS, Kozhuharov, C, Knoebel, R, Kurcewicz, J, Kuzminchuk, N, Litvinov, SA, Liu, Z, Mao, R, Nociforo, C, Nolden, F, Patyk, Z, Plass, WR, Prochazka, A, Reed, MW, Sanjari, MS, Scheidenberger, C, Steck, M, Stoehlker, T, Sun, B, Swan, TPD, Trees, G, Walker, PM, Weick, H, Winckler, N, Winkler, M, Woods, PJ, Yamaguchi, T, and Zhou, C

Published
2013

139. Schottky mass measurements of heavy neutron-rich nuclides in the element range 70≤Z≤79 at the GSI Experimental Storage Ring

Author

Shubina, D., Cakirli, B., Litvinov, Y., Blaum, K., Brandau, C., Bosch, F., Carroll, J., Casten, R., Cullen, D., Cullen, I., Deo, A., Detwiler, B., Dimopoulou, C., Farinon, F., Geissel, H., Haettner, E., Heil, M., Kempley, R., Kozhuharov, C., Knöbel, R., Kurcewicz, J., Kuzminchuk, N., Litvinov, S., Liu, Z., Mao, R., Nociforo, C., Nolden, F., Patyk, Z., Plass, W., Prochazka, A., Reed, M., Sanjari, M., Scheidenberger, C., Steck, M., Stöhlker, T., Sun, B., Swan, T., Trees, G., Walker, P., Weick, H., Winckler, N., Winkler, M., Woods, P., Yamaguchi, T., and Zhou, C.

Subjects
TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY
Abstract

Storage-ring mass spectrometry was applied to neutron-rich 197Au projectile fragments. Masses of 181,183Lu, 185,186Hf, 187,188Ta, 191W, and 192,193Re nuclei were measured for the first time. The uncertainty of previously known masses of 189,190W and 195Os nuclei was improved. Observed irregularities on the smooth two-neutron separation energies for Hf and W isotopes are linked to the collectivity phenomena in the corresponding nuclei.

Published
2013

140. Coulomb Excitation of Sn 104 and the Strength of the Sn 100 Shell Closure

Author

Guastalla, G., DiJulio, D., Górska, M., Cederkäll, J., Boutachkov, P., Golubev, P., Pietri, S., Grawe, H., Nowacki, F., Sieja, K., Algora, A., Ameil, F., Arici, T., Atac, A., Bentley, M., Blazhev, A., Bloor, D., Brambilla, S., Braun, N., Camera, F., Dombrádi, Zs., Domingo Pardo, C., Estrade, A., Farinon, F., Gerl, J., Goel, N., Grȩbosz, J., Habermann, T., Hoischen, R., Jansson, K., Jolie, J., Jungclaus, A., Kojouharov, I., Knoebel, R., Kumar, R., Kurcewicz, J., Kurz, N., Lalović, N., Merchan, E., Moschner, K., Naqvi, F., Nara Singh, B., Nyberg, J., Nociforo, C., Obertelli, A., Pfützner, M., Pietralla, N., Podolyák, Z., Prochazka, A., Ralet, D., Reiter, P., Rudolph, D., Schaffner, H., Schirru, F., Scruton, L., Sohler, D., Swaleh, T., Taprogge, J., Vajta, Zs., Wadsworth, R., Warr, N., Weick, H., Wendt, A., Wieland, O., Winfield, J., Wollersheim, H., Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)

Subjects
[PHYS]Physics [physics], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2013

141. Coulomb excitation of 104Sn and the strength of the 100Sn shell closure

Author

Guastalla, G., DiJulio, D. D., Górska, M., Cederkäll, J., Boutachkov, P., Golubev, P., Pietri, S., Grawe, H., Nowacki, F., Sieja, K., Algora, Alejandro, Ameil, F., Arici, T., Ataç, A., Bentley, M. A., Blazhev, A., Bloor, D., Brambilla, S., Braun, N., Camera, F., Dombrádi, Zsolt, Domingo Pardo, C., Estrade, A., Farinon, F., Gerl, J., Goel, N., Grębosz, J., Habermann, T., Hoischen, R., Jansson, K., Jolie, J., Jungclaus, A., Kojouharov, I., Knoebel, R., Kumar, R., Kurcewicz, J., Kurz, N., Lalović, N., Merchan, E., Moschner, K., Naqvi, F., Nara Singh, B. S., Nyberg, J., Nociforo, C., Obertelli, A., Pfützner, M., Pietralla, N., Podolyák, Zs., Prochazka, A., Ralet, D., Reiter, P., Rudolph, D., Schaffner, H., Schirru, F., Scruton, L., Sohler, Dóra, Swaleh, T., Taprogge, Jan, Vajta, Zsolt, Wadsworth, R., Warr, N., Weick, H., Wendt, A., Wieland, O., Winfield, J. S., and Wollersheim, H. J.

Subjects
Természettudományok, Fizikai tudományok
Abstract

A measurement of the reduced transition probability for the excitation of the ground state to the first 2+ state in 104Sn has been performed using relativistic Coulomb excitation at GSI. 104Sn is the lightest isotope in the Sn chain for which this quantity has been measured. The result is a key point in the discussion of the evolution of nuclear structure in the proximity of the doubly magic nucleus 100Sn. The value B(E2; 0+ → 2+) = 0.10(4) e2b2 is significantly lower than earlier results for 106Sn and heavier isotopes. The result is well reproduced by shell model predictions and therefore indicates a robust N = Z = 50 shell closure.

Published
2013

142. Measurement of $\beta$-delayed Neutrons Around the third r-process Peak

Author

Agramunt, J., Algora, A., Dillmann, I., Domingo-Pardo, C., Estrade, A., Evdokimov, A., Farinon, F., Galaviz-Redondo, D., Garcia-Rios, A., Geissel, H., Gelletly, W., Gernhäuser, R., Ameil, F., Gomez-Hornillos, M. B., Guerrero, C., Heil, M., Hinke, C., Knöbel, R., Kojouharov, I., Kurcewicz, J., Kurz, N., Litvinov, Y., Maier, L., Ayyad, Y., Marganiec, J., Marta, M., Martinez, T., Montes, F., Mukha, I., Napoli, D. R., Nociforo, C., Paradela, C., Pietri, S., Prochazka, A., Benlliure, J., Rice, S., Riego, A., Rubio, B., Schaffner, H., Scheidenberger, C., Smith, K., Sokol, E., Steiger, K., Sun, B., Tain, J. L., Bowry, M., Takechi, M., Testov, D., Weick, H., Wilson, E., Wood, R., Winfield, J., Woods, P., Caballero-Folch, R., Calvino, F., Cano-Ott, D., and Davinson, T.

Published
2013

143. First Mass Measurements of Projectile Fragmnets with a Multiple-Reflection Time-of-Flight Mass Spectrometer at the FRS Ion Catcher

Author

Ebert, J., Dickel, T., Haettner, E., Jesch, C., Kalantar-Nayestanaki, N., Knöbel, R., Kurcewicz, J., Lang, J., Moore, I., Mukha, I., Nociforo, C., Petrick, M., Plaß, W. R., Pfutzner, M., Pietri, S., Prochazka, A., Purushothaman, S., Reiter, M. P., Rink, A.-K., Scheidenberger, C., Takechi, M., Weick, H., Winfield, J., Ayet, S., Yavor, M. I., Dendooven, P., Diwisch, M., Estrade, A., Farinon, F., Geissel, H., and Greiner, F.

Published
2013

144. Dynamical dipole mode in the 192Pb mass region

Author

Parascandolo, C, Pierroutsakou, D, Agodi, C, Alba, R, Baran, V, Boiano, A, Colonna, M, Coniglione, R, De Filippo, E, Del Zoppo, A, Di Toro, M, Emanuele, Umberto, Farinon, F, Guglielmetti, A, La Commara, M, Maiolino, C, Martin, B, Mazzocco, M, Mazzocchi, C, Rizzo, C, Romoli, M, Santonocito, D, Signorini, C, Silvestri, Rosalia, Soramel, F, Strano, E, Torresi, D, Trifiro', Antonio, and Trimarchi, Marina

Subjects
Dipole mode, Mass regions, Pb compounds, Calcium, Lead, Lead compounds, Pb compounds, Lead, Dipole mode, Calcium, Mass regions
Published
2013

145. Beyond the neutron drip line: The unbound oxygen isotopes 25O and 26O

Author

Caesar, C., Simonis, J., Adachi, T., Aksyutina, Yuliya, Alcantara, J., Altstadt, S., Alvarez- Pol, H., Ashwood, N., Aumann, T., Avdeichikov, Vladimir, Barr, M., Beceiro, S., Bemmerer, D., Benlliure, J., Bertulani, CA., Boretzky, K., Borge, MJG., Burgunder, G., Caamano, M., Casarejos, E., Catford, W., Cederkäll, Joakim, Chakraborty, S., Chartier, M., Chulkov, L., Cortina-Gil, D., Datta Pramanik, U., Diaz Fernandez, P., Dillmann, I., Elekes, Z., Enders, J., Ershova, O., Estrade, A., Farinon, F., Fraile, LM., Freer, M., Freudenberger, M., Fynbo, HOU, Galaviz, D., Geissel, H., Gernhäuser, R., Golubev, Pavel, Gonzalez Diaz, D., Hagdahl, J., Heftrich, T., Heil, M., Heine, M., Heinz, A., Henriques, A., Holl, M., Holt, JD., Ickert, G., Ignatov, A., Jakobsson, B., Johansson, Håkan T., Jonson, Björn, Kalantar- Nayestanaki, N., Kanungo, R., Kelic-Heil, A., Knöbel, R., Kröll, T., Krücken, R., Kurcewicz, J, Labiche, M., Langer, C., Le Bleis, T., Lemmon, R., Lepyoshkina, O., Lindberg, Simon, Machado, J., Marganiec, J., Maroussov, V., Menéndez, J., Mostazo, M., Movsesyan, A., Najafi, A., Nilsson, Thomas, Nociforo, C., Panin, V., Perea, A., Pietri, S., Plag, R., Prochazka, A., Rahaman, A, Rastrepina, G., Reifarth, R., Ribeiro, G., Ricciardi, MV., Rigollet, C., Riisager, K., Röder, M., Rossi, D., Sanchez Del Rio, J., Savran, D., Scheit, H., Schwenk, A., Simon, H., Sorlin, O, Stoica, V., Streicher, B., Taylor, James, Tengblad, Olof, Terashima, S., Thies, Ronja, Togano, Y., Uberseder, E., Van de Walle, J., Velho, P., Volkov, V., Wagner, A., Wamers, F., Weick, H., Weigand, M., Wheldon, C., Wilson, G., Wimmer, C., Winfield, JS., Woods, P., Yakorev, D., Zhukov, Mikhail V., Zilges, A., Zorić, Maja, and Zuber, K.

Subjects
neutron-rich nulei, proton-knockout reaction, relativistic energies
Abstract

The very neutron-rich oxygen isotopes 25 O and 26 O are investigated experimentally and theoretically. The unbound states are populated in an experiment performed at the R3B-LAND setup at GSI via proton-knockout reactions from 26 F and 27 F at relativistic energies around 442 and 414 MeV/nucleon, respectively. From the kinematically complete measurement of the decay into 24 O plus one or two neutrons, the 25 O ground-state energy and width are determined, and upper limits for the 26 O ground-state energy and lifetime are extracted. In addition, the results provide indications for an excited state in 26 O at around 4 MeV. The experimental findings are compared to theoretical shell-model calculations based on chiral two-and three-nucleon (3 N) forces, including for the first time residual 3 N forces, which are shown to be amplified as valence neutrons are added.

Published
2013

146. FRS Experiment: Performance of the Cryogenic Stopping Cell for the Low-Energy Branch of the Super-FRS

Author

Reiter, M. P., Dickel, T., Weick, H., Amjad, F., Ayet, S., Diwisch, M., Estrade, A., Farinon, F., Greiner, F., Kalantar-Nayestanaki, N., Knöbel, Ronja, Kurcewicz, J., Purushothaman, S., Lang, J., Moore, I., Mukha, I., Nociforo, C., Petrick, M., Pfutzner, M., Pietri, S., Prochazka, A., Rink, A-K., Rinta-Antila, S., Dendooven, P., Scheidenberger, C., Takechi, M., Tanka, Y., Winfield, J. S., Yavor, M. I., Ebert, J., Geissel, H., Haettner, E., Jesch, C., Ranjan, M., and Plaß, W. R.

Published
2013

147. Discovery and cross-section measurement of neutron-rich isotopes in the element range from neodymium to platinum with the FRS

Author

Kurcewicz, J., Farinon, F., Geissel, H., Pietri, S., Nociforo, C., Prochazka, A., Weick, H., Winfield, J.S., Estradé, A., Allegro, P.R.P., Bail, A., Bélier, G., Benlliure, J., Benzoni, G., Bunce, M., Bowry, M., Caballero-Folch, R., Dillmann, I., Evdokimov, A., Gerl, J., Gottardo, A., Gregor, E., Janik, R., Kelić-Heil, A., Knöbel, R., Kubo, T., Litvinov, Yu.A., Merchan, E., Mukha, I., Naqvi, F., Pfützner, M., Pomorski, M., Podolyák, Zs., Regan, P.H., Riese, B., Ricciardi, M.V., Scheidenberger, C., Sitar, B., Spiller, P., Stadlmann, J., Strmen, P., Sun, B., Szarka, I., Taïeb, J., Terashima, S., Valiente-Dobón, J.J., Winkler, M., and Woods, Ph.

Published
2012
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148. New isomers in the full seniority scheme of neutron-rich lead isotopes: The role of effective three-body forces

Author

Gottardo, A, Valiente-Dobón, JJ, De Angelis, G, Napoli, DR, Sahin, E, Lunardi, S, Lenzi, SM, Maglione, E, Benzoni, G, Nicolini, R, Bracco, A, Camera, F, Crespi, FCL, Corsi, A, Leoni, S, Million, B, Morales, AI, Wieland, O, Gadea, A, Algora, A, Bazzacco, D, Farnea, E, Menegazzo, R, Mengoni, D, Recchia, F, Ur, CA, Boutachkov, P, Górska, M, Pietri, S, Weick, H, Cortes, ML, Domingo-Pardo, C, Engert, T, Farinon, F, Geissel, H, Gerl, J, Goel, N, Gregor, E, Habermann, T, Hoischen, R, Kojouharov, I, Kurz, N, Naqvi, F, Nociforo, C, Prochazka, A, Prokopowicz, W, Schaffner, H, Sharma, A, Wollersheim, H-J, Bruce, AM, Bunce, M, Denis Bacelar, AM, Grebosz, J, Podolyák, Z, Regan, PH, Al-Dahan, N, Bowry, M, Deo, AY, Farrelly, GF, Reed, MW, Swan, TPD, Walker, PM, Pfützner, M, Alcántara Núñez, J, Ayyad, Y, Benlliure, J, Alkhomashi, N, Allegro, PRP, Ribas, RV, Casarejos, E, Doncel, M, Dombradi, Z, Eppinger, K, Klupp, S, Steiger, K, Rudolph, D, Janik, R, Sitar, B, Strmen, P, Szarka, I, Mandal, S, Siwal, D, Nowacki, F, and Zuker, AP

Subjects
Body force, Physics, Valence (chemistry), Isotope, SHELL model, General Physics and Astronomy, chemistry.chemical_element, Uranium, Three-body force, Nuclear physics, chemistry, Nuclear Physics - Theory, Subatomic Physics, Nuclear Physics - Experiment, Neutron, Atomic physics, Nuclear Experiment
Abstract

The neutron-rich lead isotopes, up to Pb216, have been studied for the first time, exploiting the fragmentation of a primary uranium beam at the FRS-RISING setup at GSI. The observed isomeric states exhibit electromagnetic transition strengths which deviate from state-of-the-art shell-model calculations. It is shown that their complete description demands the introduction of effective three-body interactions and two-body transition operators in the conventional neutron valence space beyond Pb208. © 2012 American Physical Society.

Published
2012

149. β decay of Y produced in projectile fission of U

Author

Bruce, AM, Bacelar, AMD, Benzoni, G, Gottardo, A, Nicolini, R, Sahin, E, Gadea, A, Algora, A, Górska, M, Pietri, S, Boutachkov, P, Cortés, ML, Domingo-Prado, C, Farinon, F, Geissel, H, Gerl, J, Goel, N, Gregor, E, Haberman, T, Hoischen, R, Kojouharov, I, Kurz, N, Nociforo, C, Prochazka, A, Prokopowicz, W, Schaffner, H, Sharma, A, Weick, H, Wollersheim, H-J, Valiente-Dobón, JJ, Mengoni, D, Podolyák, Z, Al-Dahan, N, Alkhomashi, N, Bowry, M, Bunce, M, Deo, AY, Farrelly, GF, Regan, PH, Walker, PM, Alcántara-Núñez, JA, Ayyad, Y, Allegro, PRP, Casarejos, E, Doncel, M, Eppinger, K, Klupp, S, Steiger, K, Grȩbosz, J, Rudolph, D, Janik, R, Sitar, B, Strmen, P, Szarka, I, Lunardi, S, Menegazzo, R, Mandal, S, Siwal, D, Naqvi, F, and Pissulla, T

Abstract

The population of Zr following the β decay of Y produced in the projectile fission of U at the GSI facility in Darmstadt, Germany has been studied. Y is known to decay into Zr via two states, one of high spin and the other low spin. These states preferentially populate different levels in the Zr daughter. In this paper the intensities of transitions in Zr observed are compared with those from the decay of the low-spin level studied at the TRISTAN facility at Brookhaven National Laboratory and of the high-spin level studied at the JOSEF separator at the Kernforschungsanlage Jülich. © Published under licence by IOP Publishing Ltd.

Published
2012

150. Half-life Measurements of Isomeric States Populated in Projectile Fragmentation

Author

Bowry, M, Podolyak, Z, Kurcewicz, J, Pietri, S, Bunce, M, Regan, PH, Farinon, F, Geissel, H, Nociforo, C, Prochazka, A, Weick, H, Allegro, P, Benlliure, J, Benzoni, G, Boutachkov, P, Gerl, J, Gorska, M, Gottardo, A, Gregor, N, Janik, R, Knoebel, R, Kojouharov, I, Kubo, T, Litvinov, YA, Merchan, E, Mukha, I, Naqvi, F, Pfeiffer, B, Pfuetzner, M, Plass, W, Pomorski, M, Riese, B, Ricciardi, MV, Schmidt, K-H, Schaffner, H, Kurz, N, Bacelar, AMD, Bruce, AM, Farrelly, GF, Alkhomashi, N, Al-Dahan, N, Scheidenberger, C, Sitar, B, Spiller, P, Stadlmann, J, Strmen, P, Sun, B, Takeda, H, Tanihata, I, Terashima, S, Dobon, JJV, Winfield, JS, Wollersheim, H-J, Woods, PJ, Niksic, T, Milin, M, Vretenar, D, and Szilner, S

Subjects
Angular momentum, Uranium-238, Fragmentation (mass spectrometry), Chemistry, Excited state, Nuclear structure, Atomic number, Atomic physics, Spin (physics), Ion
Abstract

The half-lives of excited isomeric states observed in 195Au, 201Tl and 215Rn are reported for the first time. Delayed γ-rays were correlated with nuclei produced in the projectile fragmentation of relativistic 238U ions, unambiguously identified in terms of their atomic number (Z) and mass-to-charge ratio (A/Q) after traversing an in-flight separator. The observation of a long-lived isomeric state in 195Au with t1/2 = 16−4+8 μs is presented. Two shorter-lived isomeric states were detected in 201Tl and 215Rn with t1/2 = 95−21+39 and 57−12+21 ns respectively. In total 24 isomeric states were identified in different nuclei from Pt to Rn (A ∼ 200) during the current study, the majority of which were previously reported. The wealth of spectroscopic data provides the opportunity to determine the isomeric ratios over a wide range of Z, A and angular momentum (I ħ) of the reaction products. In particular, high-spin states with I ≳ 18 ħ provide a robust test of theoretical models of fragmentation.

Published
2012

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