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102 results on '"Napoli DR"'

1. Triplet energy differences and the low lying structure of Ga 62

Author

Henry, TW, Bentley, MA, Clark, RM, Davies, PJ, Bader, VM, Baugher, T, Bazin, D, Beausang, CW, Berryman, JS, Bruce, AM, Campbell, CM, Crawford, HL, Cromaz, M, Fallon, P, Gade, A, Henderson, J, Iwasaki, H, Jenkins, DG, Lee, IY, Lemasson, A, Lenzi, SM, Macchiavelli, AO, Napoli, DR, Nichols, AJ, Paschalis, S, Petri, M, Recchia, F, Rissanen, J, Simpson, EC, Stroberg, SR, Wadsworth, R, Weisshaar, D, Wiens, A, and Walz, C

Subjects
Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

Background: Triplet energy differences (TED) can be studied to yield information on isospin-non-conserving interactions in nuclei. Purpose: The systematic behavior of triplet energy differences (TED) of T=1, Jπ=2+ states is examined. The A=62 isobar is identified as having a TED value that deviates significantly from an otherwise very consistent trend. This deviation can be attributed to the tentative assignments of the pertinent states in Ga62 and Ge62. Methods: An in-beam γ-ray spectroscopy experiment was performed to identify excited states in Ga62 using Gamma-Ray Energy Tracking In-Beam Nuclear Array with the S800 spectrometer at NSCL using a two-nucleon knockout approach. Cross-section calculations for the knockout process and shell-model calculations have been performed to interpret the population and decay properties observed. Results: Using the systematics as a guide, a candidate for the transition from the T=1, 2+ state is identified. However, previous work has identified similar states with different Jπ assignments. Cross-section calculations indicate that the relevant T=1, 2+ state should be one of the states directly populated in this reaction. Conclusions: As spins and parities were not measurable, it is concluded that an unambiguous identification of the first T=1, 2+ state is required to reconcile our understanding of TED systematics.

Published
2015

2. Magnetic rotation in the nucleus Eu-141

Author

Marcinkowska, Z, Rzaca-Urban, T, Droste, C, Morek, T, Czajkowska, B, Urban, W, Marcinkowski, R, Olbratowski, P, Lieder, RM, Brans, H, Gast, W, Jager, HM, Mihailescu, L, Bazzacco, D, Falconi, G, Menegazzo, R, Lunardi, S, Rossi-Alvarez, C, de Angelis, G, Farnea, E, Gadea, A, Napoli, DR, and Podolyak, Z

Subjects
Nuclear & Particles Physics, Mathematical Sciences, Physical Sciences
Published
2003

3. Magnetic rotation in the nucleus 141Eu

Author

Marcinkowska, Z, Rzaca-Urban, T, Droste, C, Morek, T, Czajkowska, B, Urban, W, Marcinkowski, R, Olbratowski, P, Lieder, RM, Brans, H, Gast, W, Jager, HM, Mihailescu, L, Bazzacco, D, Falconi, G, Menegazzo, R, Lunardi, S, Rossi-Alvarez, C, De Angelis, G, Farnea, E, Gadea, A, Napoli, DR, and Podolyak, Z

Subjects
Nuclear & Particles Physics, Mathematical Sciences, Physical Sciences
Abstract

The previously known level scheme of 141Eu nucleus was revised and substantially extended. Three dipole cascades, characterized by large B(M1)/B(E2) ratios, have been found. Spin and parity assignments were based on the angular distribution ratios and linear polarizations of γ-rays. The experimental results have been compared with the calculations of Tilted Axis Cranking (TAC) model.

Published
2003

4. Development of γ-ray tracking detectors

Author

Lieder, RM, Gast, W, Jäger, HM, Mihailescu, L, Rossewij, M, Eberth, J, Pascovici, G, Thomas, HG, Weisshaar, D, Beck, F, Curien, D, Duchêne, G, Pachoud, E, Piqueras, I, Alvarez, CR, Bazzacco, D, Bellato, M, Kroell, T, Manea, C, Quintana, B, Venturelli, R, Napoli, DR, Rosso, D, Spolaore, P, Geraci, A, Pullia, A, Ripamonti, G, Camera, F, Leoni, S, Million, B, Wieland, O, Bracco, A, Pignanelli, M, Brambilla, S, Lisle, J, Smith, AG, Well, R, Nolan, P, Boston, A, Cullen, D, Descovich, M, Enqvist, T, Cederwall, B, Ideguchi, E, van der Marel, J, Nyberg, J, Herskind, B, Sletten, G, Wilson, J, Redouin, B, Henck, R, Gutknecht, D, and Jääskeläinen, K

Subjects
Mathematical Sciences, Physical Sciences, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract

The next generation of 4π arrays for high-precision γ-ray spectroscopy AGATA will consist of γ-ray tracking detectors. They represent high-fold segmented Ge detectors and a front-end electronics, based on digital signal processing techniques, which allows to extract energy, timing and spatial information on the interactions of a γ-ray in the Ge detector by pulse shape analysis of its signals. Utilizing the information on the positions of the interaction points and the energies released at each point the tracks of the γ-rays in a Ge shell can be reconstructed in three dimensions on the basis of the Compton-scattering formula.

Published
2001

5. The DESPEC setup for GSI and FAIR

Author

Mistry, AK, Albers, HM, Arıcı, T, Banerjee, A, Benzoni, G, Cederwall, B, Gerl, J, Górska, M, Hall, O, Hubbard, N, Kojouharov, I, Jolie, J, Martinez, T, Podolyák, Zs, Regan, PH, Tain, JL, Tarifeno-Saldivia, A, Schaffner, H, Werner, V, Ağgez, G, Agramunt, J, Ahmed, U, Aktas, O, Alcayne, V, Algora, A, Alhomaidhi, S, Amjad, F, Appleton, C, Armstrong, M, Balogh, M, Banerjee, K, Bednarczyk, P, Benito, J, Bhattacharya, C, Black, P, Blazhev, A, Bottoni, S, Boutachkov, P, Bracco, A, Bruce, AM, Brunet, M, Bruno, CG, Burrows, I, Calvino, F, Canavan, RL, Cano-Ott, D, Chishti, MMR, Coleman-Smith, P, Cortés, ML, Cortes, G, Crespi, F, Das, B, Davinson, T, De Blas, A, Dickel, T, Doncel, M, Ertoprak, A, Esmaylzadeh, A, Fornal, B, Fraile, LM, Galtarossa, F, Gottardo, A, Guadilla, V, Ha, J, Haettner, E, Häfner, G, Heggen, H, Herrmann, P, Hornung, C, Jazrawi, S, John, PR, Jokinen, A, Jones, CE, Kahl, D, Karayonchev, V, Kazantseva, E, Kern, R, Knafla, L, Knöbel, R, Koseoglou, P, Kosir, G, Kostyleva, D, Kurz, N, Kuzminchuk, N, Labiche, M, Lawson, J, Lazarus, I, Lenzi, SM, Leoni, S, Llanos-Expósito, M, Lozeva, R, Maj, A, Meena, JK, Mendoza, E, Menegazzo, R, Mengoni, D, Mertzimekis, TJ, Mikolajczuk, M, Million, B, Mont-Geli, N, Morales, AI, Morral, P, Mukha, I, Murias, JR, Nacher, E, Napiralla, P, Napoli, DR, Nara-Singh, BS, O’Donnell, D, Orrigo, SEA, Page, RD, Palit, R, Pallas, M, Pellumaj, J, Pelonis, S, Pentilla, H, Pérez de Rada, A, Pérez-Vidal, RM, Petrache, CM, Pietralla, N, Pietri, S, Pigliapoco, S, Plaza, J, Polettini, M, Porzio, C, Pucknell, VFE, Recchia, F, Reiter, P, Rezynkina, K, Rinta-Antila, S, Rocco, E, Rösch, HA, Roy, P, Rubio, B, Rudigier, M, Ruotsalainen, P, Saha, S, Şahin, E, Scheidenberger, Ch, Seddon, DA, Sexton, L, Sharma, A, Si, M, Simpson, J, Smith, A, Smith, R, Söderström, PA, Sood, A, Soylu, A, Tanaka, YK, Valiente-Dobón, JJ, Vasileiou, P, Vasiljevic, J, Vesic, J, Villamarin, D, Weick, H, Wiebusch, M, Wiederhold, J, Wieland, O, Wollersheim, HJ, Woods, PJ, Yaneva, A, Zanon, I, Zhang, G, Zhao, J, Zidarova, R, Zimba, G, Zyriliou, A, Van Swinderen Institute for Particle Physics and G, Precision Frontier, and Universitat Politècnica de Catalunya. Doctorat en Enginyeria Nuclear i de les Radiacions Ionitzants

Subjects
Astrofísica, Estructura nuclear, Nuclear and High Energy Physics, βγspectroscopy, Física [Àrees temàtiques de la UPC], α, α, β γ spectroscopy, Fast timing, NuSTAR, Astrophysics, Digital electronics, Settore FIS/04 - Fisica Nucleare e Subnucleare, DESPEC, β γ spectroscopy, FAIR, α,βγspectroscopy, Nuclear matter, Instrumentation
Abstract

The DEcay SPECtroscopy (DESPEC) setup for nuclear structure investigations was developed and commissioned at GSI, Germany in preparation for a full campaign of experiments at the FRS and Super-FRS. In this paper, we report on the first employment of the setup in the hybrid configuration with the AIDA implanter coupled to the FATIMA LaBr3(Ce) fast-timing array, and high-purity germanium detectors. Initial results are shown from the first experiments carried out with the setup. An overview of the setup and function is discussed, including technical advancements along the path. Peer Reviewed Article signat per 169 autors/es. A.K. Mistry 1,2,∗, H.M. Albers 2, T. Arıcı 3, A. Banerjee 2, G. Benzoni 4, B. Cederwall 5, J. Gerl 2, M. Górska 2, O. Hall 6, N. Hubbard 1,2, I. Kojouharov 2, J. Jolie 7, T. Martinez 8, Zs. Podolyák 9, P.H. Regan 9,10, J.L. Tain 11, A. Tarifeno-Saldivia 12, H. Schaffner 2, V. Werner 1, G. Ağgez 3, J. Agramunt 11, U. Ahmed 1, O. Aktas 5, V. Alcayne 8, A. Algora 11,13, S. Alhomaidhi 1,2, F. Amjad 2, C. Appleton 6, M. Armstrong 7, M. Balogh 14, K. Banerjee 15, P. Bednarczyk 16, J. Benito 17, C. Bhattacharya 15, P. Black 6, A. Blazhev 7, S. Bottoni 4,18, P. Boutachkov 2, A. Bracco 18,4, A.M. Bruce 19, M. Brunet 9, C.G. Bruno 6, I. Burrows 20, F. Calvino 12, R.L. Canavan 9,10, D. Cano-Ott 8, M.M.R. Chishti 9, P. Coleman-Smith 20, M.L. Cortés 1, G. Cortes 12, F. Crespi 18,4, B. Das 5, T. Davinson 6, A. De Blas 12, T. Dickel 2, M. Doncel 21, A. Ertoprak 5,3, A. Esmaylzadeh 7, B. Fornal 16, L.M. Fraile 17, F. Galtarossa 14, A. Gottardo 14, V. Guadilla 11,22, J. Ha 23,24, E. Haettner 2, G. Häfner 25,7, H. Heggen 2, P. Herrmann 1, C. Hornung 2, S. Jazrawi 9,10, P.R. John 1, A. Jokinen 26, C.E. Jones 19, D. Kahl 6,27, V. Karayonchev 7, E. Kazantseva 2, R. Kern 1, L. Knafla 7, R. Knöbel 2, P. Koseoglou 1, G. Kosir 28, D. Kostyleva 2, N. Kurz 2, N. Kuzminchuk 2, M. Labiche 20, J. Lawson 20, I. Lazarus 20, S.M. Lenzi 23, S. Leoni 4,18, M. Llanos-Expósito 17, R. Lozeva 25, A. Maj 16, J.K. Meena 15, E. Mendoza 8, R. Menegazzo 24, D. Mengoni 14, T.J. Mertzimekis 29, M. Mikolajczuk 22,2, B. Million 4, N. Mont-Geli 12, A.I. Morales 11, P. Morral 20, I. Mukha 2, J.R. Murias 17, E. Nacher 11, P. Napiralla 1, D.R. Napoli 14, B.S. Nara-Singh 30, D. O’Donnell 30, S.E.A. Orrigo 11, R.D. Page 31, R. Palit 32, M. Pallas 12, J. Pellumaj 14, S. Pelonis 29, H. Pentilla 26, A. Pérez de Rada 8, R.M. Pérez-Vidal 14, C.M. Petrache 25, N. Pietralla 1, S. Pietri 2, S. Pigliapoco 24, J. Plaza 8, M. Polettini 4,18, C. Porzio 4,18, V.F.E. Pucknell 20, F. Recchia 23, P. Reiter 7, K. Rezynkina 24, S. Rinta-Antila 26, E. Rocco 2, H.A. Rösch 2,1, P. Roy 15,2, B. Rubio 11, M. Rudigier 1, P. Ruotsalainen 26, S. Saha 33, E. Şahin 1,2, Ch. Scheidenberger 2, D.A. Seddon 31, L. Sexton 6, A. Sharma 34, M. Si 25, J. Simpson 20, A. Smith 35, R. Smith 20, P.A. Söderström 27, A. Sood 5, A. Soylu 36, Y.K. Tanaka 37, J.J. Valiente-Dobón 14, P. Vasileiou 29, J. Vasiljevic 5, J. Vesic 28, D. Villamarin 8, H. Weick 2, M. Wiebusch 2, J. Wiederhold 1, O. Wieland 4, H.J. Wollersheim 2, P.J. Woods 6, A. Yaneva 7, I. Zanon 14, G. Zhang 23,24, J. Zhao 2,38, R. Zidarova 1, G. Zimba 26, A. Zyriliou 29

Published
2022

6. High-spin states in Po-212 above the alpha-decaying (18+) isomer

Author

Zago, L, Gottardo, A, Valiente-Dobon, Jj, Benzoni, G, Gadea, A, Gorska, M, Lunardi, S, Podolyak, Z, Regan, Ph, Rudolph, D, Algora, A, de Angelis, G, Bazzacco, D, Benlliure, J, Boutachkov, R, Bracco, A, Bruce, Am, Camera, F, Casarejos, E, Cortes, Ml, Crespi, Fcl, Corsi, A, Domingo-Pardo, C, Doncel, M, Engert, T, Geissel, H, Gerl, J, Goasduff, A, Goel, N, Grebosz, J, Gregor, E, Habermann, T, Klupp, S, Kojouharov, I, Kurz, N, Lenzi, Sm, Leoni, S, Mandal, S, Menegazzo, R, Mengoni, D, Million, B, Morales, Ai, Napoli, Dr, Naqvi, F, Nociforo, C, Pfiitzner, M, Pietri, S, Prochazka, A, Recchia, F, Sahin, E, Schaffner, H, Sharma, A, Sitar, B, Siwal, D, Strmen, R, Szarka, I, Ca, Ur, Walker, Pm, Weick, H, Wieland, O, and Wollersheime, Hj

Subjects
High-spin spectroscopy, gamma spectroscopy, Isomer spectroscopy
Published
2022

7. Evidence of Partial Seniority Conservation in the $\pi{g}_{9/2}$ Shell for the $N=50$ Isotones

Author

Perez-Vidal, Rm, Gadea, A, Domingo-Pardo, C, Gargano, A, Valiente-Dobon, Jj, Clement, E, Lemasson, A, Coraggio, L, Siciliano, M, Szilner, S, Bast, M, Braunroth, T, Collado, J, Corina, A, Dewald, A, Doncel, M, Dudouet, J, de France, G, Fransen, C, Gonzalez, V, Huyuk, T, Jacquot, B, John, Pr, Jungclaus, A, Kim, Yh, Korichi, A, Labiche, M, Lenzi, S, Li, H, Ljungvall, J, Lopez-Martens, A, Mengoni, D, Michelagnoli, C, Muller-Gatermann, C, Napoli, Dr, Navin, A, Quintana, B, Ramos, D, Rejmund, M, Sanchis, E, Simpson, J, Stezowski, O, Wilmsen, D, Zielinska, M, Boston, Aj, Barrientos, D, Bednarczyk, P, Benzoni, G, Birkenbach, B, Boston, Hc, Bracco, A, Cederwall, B, Cullen, Dm, Didierjean, F, Eberth, J, Gottardo, A, Goupil, J, Harkness-Brennan, Lj, Hess, H, Judson, Ds, Kaskas, A, Korten, W, Leoni, S, Menegazzo, R, Million, B, Nyberg, J, Podolyak, Z, Pullia, A, Ralet, D, Recchia, F, Reiter, P, Rezynkina, K, Salsac, Md, Senyigit, M, Sohler, D, Theisen, C, Verney, D, 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), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), 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), Institut Laue-Langevin (ILL), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Pluridisciplinaire Hubert Curien (IPHC), and 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)

Subjects
Subatomär fysik, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], Nuclear Physics - Theory, Atom and Molecular Physics and Optics, Subatomic Physics, Atom- och molekylfysik och optik
Abstract

International audience; The reduced transition probabilities for the $4^+_1 \to 2^+_1$ and $2^+_1 \to 0^+_1$ transitions in $^{92}$Mo and $^{94}$Ru and for the $4^+_1 \to 2^+_1$ and $6^+_1 \to 4^+_1$ transitions in $^{90}$Zr have been determined in this experiment making use of a multinucleon transfer reaction. These results have been interpreted on the basis of realistic shell-model calculations in the $f_{5/2}, p_{3/2}, p_{1/2},$ and $g_{9/2}$ proton valence space. Only the combination of extensive lifetime information and large scale shell-model calculations allowed the extent of the seniority conservation in the $N=50 g_{9/2}$ orbital to be understood. The conclusion is that seniority is largely conserved in the first $\pi{g}_{9/2}$ orbital.

Published
2022

8. Guia Prático das Principais Doenças Infecciosas do Aparelho Respiratório - Edição II

Author

LOPES, ANNA CARLA ALVES, primary, SILVA, CECÍLIA DE SOUSA, additional, GONÇALVES, ALINE BELLE MORAES, additional, ALCÂNTARA, LAIANNE BARROS MARTINS DE, additional, AGUIAR, YNGRID CARNEIRO DE, additional, ALVES, ANDRÉ FELIPE COSTA, additional, COSTA, DR ANDRÉ BON FERNANDES DA, additional, PEREIRA, GABRIEL VICTOR SILVA, additional, FERRO, HENRIQUE METZKER, additional, COSTA, JULIANA SMIDT, additional, XAVIER, EDUARDA PAULA MARKUS, additional, COELHO, DR ANDRÉ AFONSO MACHADO, additional, STÁBILE, MATEUS NOGARA, additional, SANTOS, JONATHAN ANDRADE DOS, additional, BASTOS, PAULA HELBOURN, additional, DUQUE, MARCOS HEITOR ROCHA DOS REIS, additional, VARGAS, MARCOS IGOR ALBANAZ, additional, PAIVA, MATEUS COELHO, additional, RODRIGUES, MARIA CAROLINA FAGUNDES, additional, LIMA, DRA VALÉRIA PAES, additional, ENDRES, JOANA SILVEIRA, additional, HAICK, JÚLIA DE MIRANDA, additional, DUTRA, THIAGO GUEDES ASSIS, additional, RAMOS, BRUNO CARRIJO, additional, OLIVEIRA, LARISSA RODRIGUES DE ALMEIDA REGO, additional, SILVA, DR JEFFERSON FONTINELE E, additional, CORDEIRO, GUSTAVO DEL CAMPO, additional, BARCELOS, MATHEUS FREIRE, additional, CASTRO, JULIANA MARTINS DE, additional, SANTANA, THAYANE RODRIGUES DE, additional, FERREIRA, INGRIDY MARIA OLIVEIRA, additional, CARDOSO, EMANUEL GUIMARÃES, additional, NAPOLI, DR ALLAN EURÍPIDES REZENDE, additional, VAZ, AMANDA SOUTO, additional, ANDRADE, INGRID RIBEIRO ARAÚJO DE, additional, and ARAÚJO, DRA CARLA MARIA DA SILVA, additional

Published
2022
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9. Evidence for enhanced neutron-proton correlations from the level structure of the N = Z+1 nucleus Tc-87(43)44

Author

Liu, X, Cederwall, B, Qi, C, Wyss, RA, Aktas, O, Ertoprak, A, Zhang, W, Clement, E, de France, G, Ralet, D, Gadea, A, Goasduff, A, Jaworski, G, Kuti, I, Nyako, BM, Nyberg, J, Palacz, M, Wadsworth, R, Valiente-Dobon, JJ, Al-Azri, H, Nyberg, A Atac, Back, T, de Angelis, G, Doncel, M, Dudouet, J, Gottardo, A, Jurado, M, Ljungvall, J, Mengoni, D, Napoli, DR, Petrache, CM, Sohler, D, Timar, J, Barrientos, D, Bednarczyk, P, Benzoni, G, Birkenbach, B, Boston, AJ, Boston, HC, Burrows, I, Charles, L, Ciemala, M, Crespi, FCL, Cullen, DM, Desesquelles, P, Domingo-Pardo, C, Eberth, J, Erduran, N, Erturk, S, Gonzalez, V, Goupil, J, Hess, H, Huyuk, T, Jungclaus, A, Korten, W, Lemasson, A, Leoni, S, Maj, A, Menegazzo, R, Million, B, Perez-Vidal, RM, Podolyak, Zs, Pullia, A, Recchia, F, Reiter, P, Saillant, F, Salsac, MD, Sanchis, E, Simpson, J, Stezowski, O, Theisen, C, and Zielinska, M

Published
2021

10. Lifetime measurements in Ti-52,Ti-54 to study shell evolution toward N=32

Author

Goldkuhle, A, Fransen, C, Blazhev, A, Beckers, M, Birkenbach, B, Braunroth, T, Clement, E, Dewald, A, Dudouet, J, Eberth, J, Hess, H, Jacquot, B, Jolie, J, Kim, Y-H, Lemasson, A, Lenzi, SM, Li, HJ, Litzinger, J, Michelagnoli, C, Mueller-Gatermann, C, Singh, BS Nara, Perez-Vidal, RM, Ralet, D, Reiter, P, Vogt, A, Warr, N, Zell, KO, Atac, A, Barrientos, D, Barthe-Dejean, C, Benzoni, G, Boston, AJ, Boston, HC, Bourgault, P, Burrows, I, Cacitti, J, Cederwall, B, Ciemala, M, Cullen, DM, De France, G, Domingo-Pardo, C, Foucher, J-L, Fremont, G, Gadea, A, Gangnant, P, Gonzalez, V, Goupil, J, Henrich, C, Houarner, C, Jean, M, Judson, DS, Korichi, A, Korten, W, Labiche, M, Lefevre, A, Legeard, L, Legruel, F, Leoni, S, Ljungvall, J, Maj, A, Maugeais, C, Menager, L, Menard, N, Menegazzo, R, Mengoni, D, Million, B, Munoz, H, Napoli, DR, Navin, A, Nyberg, J, Ozille, M, Podolyak, Zs, Pullia, A, Raine, B, Recchia, F, Ropert, J, Saillant, F, Salsac, MD, Sanchis, E, Schmitt, C, Simpson, J, Spitaels, C, Stezowski, O, Theisen, Ch, Toulemonde, M, Tripon, M, Dobon, J-J Valiente, Voltolini, G, Zielinska, M, and Collaboration, AGATA

Published
2019

11. Controlling the Formation of Peptide Films: Fully Developed Helical Peptides are Required to Obtain a Homogenous Coating over a Large Area

Author

Mariano Venanzi and Dr. Marta De Zotti Gabriele Corvi Dr. Emanuela Gatto Dr. Benedetta Di Napoli Dr. Claudia Mazzuca Prof. Antonio Palleschi Dr. Ernesto Placidi Dr. Barbara Biondi Dr. Marco Crisma Prof. Fernando Formaggio Prof. Claudio Toniolo

Abstract

he influence of conformational dynamics on the self‐assembly process of a conformationally constrained analogue of the natural antimicrobial peptide Trichogin GA IV was analysed by spectroscopic methods, microscopy imaging at nanometre resolution, and molecular dynamics simulations. The formation of peptide films at the air/water interface and their deposition on a graphite or a mica substrate were investigated. A combination of experimental evidence with molecular dynamics simulation was used to demonstrate that only the fully developed helical structure of the analogue promotes formation of ordered aggregates that nucleate the growth of micrometric rods, which give rise to homogenous coating over wide regions of the hydrophilic mica. This work proves the influence of helix flexibility on peptide self‐organization and orientation on surfaces, key steps in the design of bioinspired organic/inorganic hybrid materials.

Published
2019

12. Low-energy Coulomb excitation of Zr-94

Author

Marchini, N, Rocchini, M, Nannini, A, Doherty, DT, Zielinska, M, Hadynska-Klek, K, Testov, D, Goasduff, A, Benzoni, G, Camera, F, Bakes, SD, Bazzacco, D, Berry, T, Brugnara, D, Brunet, MH, Carozzi, G, Catford, WN, De Rizzo, M, Galtarossa, F, Garrett, P, Gelli, N, Gottardo, A, Gozzelino, A, Illana, A, Keatings, J, Kennington, ARL, Mengoni, D, Morrison, L, Napoli, DR, Ottanelli, M, Ottanelli, P, Pasqualato, G, Recchia, F, Riccetto, S, Scheck, M, Siciliano, M, Sighinolfi, G, Sinclair, J, Dobon, JJ Valiente, and Zanon, I

Subjects
Science & Technology, Physics, Physical Sciences, Physics, Multidisciplinary
Abstract

ispartof: NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS vol:42 issue:2-3 status: published

Published
2019

13. Evidence for Coexisting Shapes through Lifetime Measurements in $^{98}\mathrm{Zr}$

Author

Singh, P, Korten, W, Hagen, TW, Görgen, A, Grente, L, Salsac, M-D, Farget, F, Clément, E, de France, G, Braunroth, T, Bruyneel, B, Celikovic, I, Delaune, O, Dewald, A, Dijon, A, Delaroche, J-P, Girod, M, Hackstein, M, Jacquot, B, Libert, J, Litzinger, J, Ljungvall, J, Louchart, C, Gottardo, A, Michelagnoli, C, Müller-Gatermann, C, Napoli, DR, Otsuka, T, Pillet, N, Recchia, F, Rother, W, Sahin, E, Siem, S, Sulignano, B, Togashi, T, Tsunoda, Y, Theisen, C, and Valiente-Dobon, JJ

Abstract

The lifetimes of the first excited 2^{+}, 4^{+}, and 6^{+} states in ^{98}Zr were measured with the recoil-distance Doppler shift method in an experiment performed at GANIL. Excited states in ^{98}Zr were populated using the fission reaction between a 6.2 MeV/u ^{238}U beam and a ^{9}Be target. The γ rays were detected with the EXOGAM array in correlation with the fission fragments identified by mass and atomic number in the VAMOS++ spectrometer. Our result shows a very small B(E2;2_{1}^{+}→0_{1}^{+}) value in ^{98}Zr, thereby confirming the very sudden onset of collectivity at N=60. The experimental results are compared to large-scale Monte Carlo shell model and beyond-mean-field calculations. The present results indicate the coexistence of two additional deformed shapes in this nucleus along with the spherical ground state. ispartof: PHYSICAL REVIEW LETTERS vol:121 issue:19 pages:192501-192501 ispartof: location:United States status: published

Published
2018

14. Quadrupole collectivity in Ca-42 from low-energy Coulomb excitation with AGATA

Author

Hadynska-Klek, K, Napiorkowski, PJ, Zielinska, M, Srebrny, J, Maj, A, Azaiez, F, Dobon, JJ Valiente, Kicinska-Habior, M, Nowacki, F, Naidja, H, Bounthong, B, Rodriguez, TR, de Angelis, G, Abraham, T, Kumar, G Anil, Bazzacco, D, Bellato, M, Bortolato, D, Bednarczyk, P, Benzoni, G, Berti, L, Birkenbach, B, Bruyneel, B, Brambilla, S, Camera, F, Chavas, J, Cederwall, B, Charles, L, Ciemala, M, Cocconi, P, Coleman-Smith, P, Colombo, A, Corsi, A, Crespi, FCL, Cullen, DM, Czermak, A, Desesquelles, P, Doherty, DT, Dulny, B, Eberth, J, Farnea, E, Fornal, B, Franchoo, S, Gadea, A, Giaz, A, Gottardo, A, Grave, X, Grebosz, J, Gorgen, A, Gulmini, M, Habermann, T, Hess, H, Isocrate, R, Iwanicki, J, Jaworski, G, Judson, DS, Jungclaus, A, Karkour, N, Kmiecik, M, Karpinski, D, Kisielinski, M, Kondratyev, N, Korichi, A, Komorowska, M, Kowalczyk, M, Korten, W, Krzysiek, M, Lehaut, G, Leoni, S, Ljungvall, J, Lopez-Martens, A, Lunardi, S, Maron, G, Mazurek, K, Menegazzo, R, Mengoni, D, Merchan, E, Meczynski, W, Michelagnoli, C, Million, B, Myalski, S, Napoli, DR, Niikura, M, Obertelli, A, Ozmen, SF, Palacz, M, Prochniak, L, Pullia, A, Quintana, B, Rampazzo, G, Recchia, F, Redon, N, Reiter, P, Rosso, D, Rusek, K, Sahin, E, Salsac, M-D, Soderstrom, P-A, Stefan, I, Stezowski, O, Styczen, J, Theisen, Ch, Toniolo, N, Ur, CA, Wadsworth, R, Wasilewska, B, Wiens, A, Wood, JL, Wrzosek-Lipska, K, and Zieblinski, M

Published
2018

15. In-beam gamma-ray spectroscopy of the neutron-rich platinum isotope 200Pt toward the N = 126 shell gap

Author

John, PR, Valiente-Dob on, JJ, Mengoni, D, Modamio, V, Lunardi, S, Bazzacco, D, Gadea, A, Wheldon, C, Rodr guez, TR, Alexander, T, de Angelis, G, Ashwood, N, Barr, M, Benzoni, G, Birkenbach, B, Bizzeti, PG, Bizzeti-Sona, AM, Bottoni, S, Bowry, M, Bracco, A, Browne, F, Bunce, M, Camera, F, Corradi, L, Crespi, FCL, Melon, B, Farnea, E, Fioretto, E, Gottardo, A, Grente, L, Hess, H, Kokalova, T, Mijatovi c, T, Montagnoli, G, Montanari, D, Napoli, DR, Podolyak, Zsolt, Pollarolo, G, Recchia, F, Reiter, P, Roberts, OJ, Sahin, E, Salsac, M-D, Scarlassara, F, Sferrazza, M, Soderstrom, P-A, Stefanini, AM, Szilner, S, Ur, CA, Vogt, A, and Walshe, A

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Nuclear Experiment
Abstract

The neutron-rich nucleus \nucleus{200}{Pt} is investigated via in-beam \gamma-ray spectroscopy in order to study the shape evolution in the neutron-rich platinum isotopes towards the N = 126 shell closure. The two-neutron transfer reaction \nucleus{198}{Pt}(\nucleus{82}{Se}, \nucleus{80}{Se})\nucleus{200}{Pt} is used to populate excited states of \nucleus{200}{Pt}. The Advanced Gamma Ray Tracking Array (AGATA) demonstrator coupled with the PRISMA spectrometer detects \gamma rays coincident with the \nucleus{80}{Se} recoils, the binary partner of \nucleus{200}{Pt}. The binary partner method is applied to extract the \gamma-ray transitions and build the level scheme of \nucleus{200}{Pt}. The level at 1884\,keV reported by Yates et. al [Phys. Rev. C 37, 1889] was confirmed to be at 1882.1\,keV and assigned as the (6^+_1) state. An additional \gamma ray was found and it presumably de-excites the (8^+_1) state. The results are compared with state-of-the-art beyond mean-field calculations, performed for the even-even \nucleus{190-204}{Pt} isotopes, revealing that \nucleus{200}{Pt} marks the transition from the \gamma-unstable behaviour of lighter Pt nuclei towards a more spherical one when approaching the N=126 shell closure.

Published
2017

16. Shell Evolution towards Ni 78 : Low-Lying States in Cu 77

Author

Sahin, E, Bello Garrote, FL, Tsunoda, Y, Otsuka, T, de Angelis, G, Görgen, A, Niikura, M, Nishimura, S, Xu, ZY, Baba, H, Browne, F, Delattre, M-C, Doornenbal, P, Franchoo, S, Gey, G, Hadyńska-Klęk, K, Isobe, T, John, PR, Jung, HS, Kojouharov, I, Kubo, T, Kurz, N, Li, Z, Lorusso, G, Matea, I, Mutsui, K, Mengoni, D, Morfouace, P, Napoli, DR, Naqvi, F, Nishibata, H, Odahara, A, Sakurai, H, Schaffner, H, Söderström, P-A, Sohler, D, Stefan, IG, Sumikama, T, Suzuki, D, Taniuchi, R, Taprogge, J, Vajta, Z, Watanabe, H, Werner, V, Wu, J, Yagi, A, Yalcinkaya, M, Yoshinaga, K, INFN Laboratori Nazionali di Legnaro, RIKKEN-Saimata, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt

Subjects
[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]
Abstract

The level structure of the neutron-rich ^{77}Cu nucleus is investigated through β-delayed γ-ray spectroscopy at the Radioactive Isotope Beam Factory of the RIKEN Nishina Center. Ions of ^{77}Ni are produced by in-flight fission, separated and identified in the BigRIPS fragment separator, and implanted in the WAS3ABi silicon detector array, surrounded by Ge cluster detectors of the EURICA array. A large number of excited states in ^{77}Cu are identified for the first time by correlating γ rays with the β decay of ^{77}Ni, and a level scheme is constructed by utilizing their coincidence relationships. The good agreement between large-scale Monte Carlo shell model calculations and experimental results allows for the evaluation of the single-particle structure near ^{78}Ni and suggests a single-particle nature for both the 5/2_{1}^{-} and 3/2_{1}^{-} states in ^{77}Cu, leading to doubly magic ^{78}Ni. ispartof: Physical Review Letters vol:118 issue:24 ispartof: location:United States status: published

Published
2017

17. Mirrored one-nucleon knockout reactions to the Tz=±32 A=53 mirror nuclei

Author

Milne, SA, Bentley, MA, Simpson, EC, Dodsworth, P, Baugher, T, Bazin, D, Berryman, JS, Bruce, AM, Davies, PJ, Aa. Diget, C, Gade, A, Henry, TW, Iwasaki, H, Lemasson, A, Lenzi, SM, McDaniel, S, Napoli, DR, Nichols, AJ, Ratkiewicz, A, Scruton, L, Stroberg, SR, Tostevin, JA, Weisshaar, D, Wimmer, K, and Winkler, R

Abstract

Background: The study of excited states in mirror nuclei allows us to extract information on charge-dependent (i.e., isospin-nonconserving) interactions in nuclei. Purpose: To extend previous studies of mirror nuclei in the f7/2 region, investigating charge symmetry breaking of the strong nuclear force. Methods: γ-ray spectroscopy has been performed for the mirror (Tz= ±3/2) pair 53Ni and 53Mn, produced via mirrored one-nucleon knockout reactions. Results: Several new transitions have been identified in 53Ni from which a new level scheme has been constructed. Cross sections for knockout have been analyzed and compared with reaction model calculations where evidence is found for knockout from high-spin isomeric states. Mirror energy differences between isobaric analog states have been computed, compared to large scale shell-model calculations, and interpreted in terms of isospin-nonconserving effects. In addition, lifetimes for the long-lived J π = 5 /2 − 1 analog states in both 53Mn and 53Ni have been extracted through lineshape analysis, giving half-lives of t1/2 = 120 (14) ps and t1/2 = 198 (12) ps,respectively. Conclusions: The inclusion of a set of isovector isospin-nonconserving matrix elements to the shell-model calculations gave the best agreement with the experimental data.

Published
2016

18. 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

19. Triplet energy differences and the low lying structure of Ga62

Author

Henry, TW, Bentley, MA, Clark, RM, Davies, PJ, Bader, VM, Baugher, T, Bazin, D, Beausang, CW, Berryman, JS, Bruce, AM, Campbell, CM, Crawford, HL, Cromaz, M, Fallon, P, Gade, A, Henderson, J, Iwasaki, H, Jenkins, DG, Lee, IY, Lemasson, A, Lenzi, SM, Macchiavelli, AO, Napoli, DR, Nichols, AJ, Paschalis, S, Petri, M, Recchia, F, Rissanen, J, Simpson, EC, Stroberg, SR, Wadsworth, R, Weisshaar, D, Wiens, A, and Walz, C

Subjects
Particle and Plasma Physics, Affordable and Clean Energy, Molecular, Nuclear, Atomic, Nuclear & Particles Physics
Abstract

Background: Triplet energy differences (TED) can be studied to yield information on isospin-non-conserving interactions in nuclei. Purpose: The systematic behavior of triplet energy differences (TED) of T=1, Jπ=2+ states is examined. The A=62 isobar is identified as having a TED value that deviates significantly from an otherwise very consistent trend. This deviation can be attributed to the tentative assignments of the pertinent states in Ga62 and Ge62. Methods: An in-beam γ-ray spectroscopy experiment was performed to identify excited states in Ga62 using Gamma-Ray Energy Tracking In-Beam Nuclear Array with the S800 spectrometer at NSCL using a two-nucleon knockout approach. Cross-section calculations for the knockout process and shell-model calculations have been performed to interpret the population and decay properties observed. Results: Using the systematics as a guide, a candidate for the transition from the T=1, 2+ state is identified. However, previous work has identified similar states with different Jπ assignments. Cross-section calculations indicate that the relevant T=1, 2+ state should be one of the states directly populated in this reaction. Conclusions: As spins and parities were not measurable, it is concluded that an unambiguous identification of the first T=1, 2+ state is required to reconcile our understanding of TED systematics.

Published
2015

20. 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

21. 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

22. 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

23. Cross-coincidences in the 136Xe+208Pb Deep-inelastic Reaction

Author

Kempley, Rs, Podolyak, Z, Bazzacco, D, Gadea, A, Farnea, E, Valiente Dobon JJ, Mengoni, Daniele, Recchia, Francesco, Sahin, E, Gottardo, Andrea, Corradi, L, Fioretto, E, Szilner, S, Anagnostatou, V, Al Dahan, N, De Angelis, G, Bellato, M, Berti, B, Bortolato, D, Bowry, M, Bunce, M, Cocconi, P, Colombo, A, Dombradi, Z, Fanin, C, Gelletly, W, Isocrate, R, Ketenci, S, Kondratyev, N, Kuti, I, Mason, Pjr, Michelagnoli, Caterina, Mijatovic, T, Molini, P, Montagnoli, Giovanna, Montanari, Daniele, Nakhostin, M, Napoli, Dr, Pellegrini, D, Regan, Ph, Rampazzo, G, Reiter, P, Rosso, D, Scarlassara, Fernando, Stefanini, A, Singh, P, Toniolo, N, and Ur, Ca

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Nuclear Experiment, spectroemeter, nuclaer spectroscopy
Abstract

A deep-inelastic reaction experiment with a 136Xe beam impinging on a 208Pb target was performed. Gamma rays were detected with the AGATA Demonstrator. The beam-like fragments were identified with the PRISMA spectrometer on event- by-event basis. Doppler corrected \gamma -ray spectra were obtained for both the identified beam-like nuclei and for the target-like binary partners. This cross-coincidence method can be used to study heavy target-like nuclei which cannot be unambiguously identified in the spectrometer due to their large masses and low velocities.

Published
2011

24. Collectivity in (41)S

Author

Wang, Zm, Chapman, R, Haas, F, Liang, X, Azaiez, F, Behera, Br, Burns, M, Corradi, L, Curien, D, Deacon, An, Dombradi, Z, Farnea, E, Fioretto, E, Gadea, A, Hodsdon, A, Ibrahim, F, Jungclaus, A, Keyes, K, Kumar, V, Latina, A, Marginean, N, Montagnoli, Giovanna, Napoli, Dr, Ollier, J, O'Donnell, D, Papenberg, A, Pollarolo, G, Salsac, Md, Scarlassara, Fernando, Smith, Jf, Spohr, Km, Stanoiu, M, Stefanini, Am, Szilner, S, Trotta, M, Verney, D., Département Recherches Subatomiques (DRS-IPHC), 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)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), 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, 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)-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), 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
binary grazing reactions, shell-model calculations, 41S, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

Yrast states in the neutron-rich 41S nucleus have been studied using binary grazing reactions produced by the interaction of a 215-MeV beam of 36S ions with a thin 208Pb target. The magnetic spectrometer, PRISMA, and the γ -ray array, CLARA, were used in the measurements. γ -ray transitions of energy 449 and 638 keV were observed. Results from published intermediate-energy Coulomb excitation measurements in combination with those from the present work have led to the construction of a new 41S level scheme. Proposed J π values are based on experimental observation and on model-dependent arguments. The level scheme and published electromagnetic transition probabilities are discussed within the context of state-of-art shell-model calculations using the SDPF-U effective interaction. In contrast with the excellent agreement observed in earlier published work, here there are significant discrepancies between experiment and the results of shell-model calculations.

Published
2011

25. Transition probabilities in the X(5) candidate Ba-122

Author

Bizzeti, Pg, BIZZETI SONA AM, Tonev, D, Giannatiempo, A, Ur, Ca, Dewald, A, Melon, B, Michelagnoli, Caterina, Petkov, P, Bazzacco, D, Costin, A, DE ANGELIS, G, DELLA VEDOVA, F, Fantuzi, M, Farnea, E, Fransen, C, Gadea, A, Lenzi, SILVIA MONICA, Lunardi, Santo, Marginean, N, Marginean, R, Menegazzo, R, Mengoni, Daniele, Moller, O, Nannini, A, Napoli, Dr, Nespolo, M, Pavan, Pietro, Perego, A, Petrache, Cm, Pietralla, N, Alvarez, Cr, and Sona, P.

Published
2010

26. gamma-ray spectroscopy of Cl-38(17) using grazing reactions

Author

O'Donnell, D, Chapman, R, Liang, X, Azaiez, F, Haas, F, Beghini, S, Behera, Br, Burns, M, Caurier, E, Corradi, L, Curien, D, Deacon, An, Dombradi, Zs, Farnea, E, Fioretto, E, Gadea, A, Hodsdon, A, Ibrahim, F, Jungclaus, A, Keyes, K, Latina, A, Marginean, N, Montagnoli, Giovanna, Napoli, Dr, Nowacki, F, Ollier, J, Papenberg, A, Pollarolo, G, Salsac, Md, Scarlassara, Fernando, Smith, Jf, Spohr, Km, Stanoiu, M, Stefanini, Am, Szilner, S, Trotta, M, VALIENTE DOBON JJ, Verney, D, and Wang, Zm

Published
2010

27. Identification of yrast high-K intrinsic states in Os-188

Author

Modamio, V, Jungclaus, A, Podolyak, Z, Shi, Y, Xu, FR, Algora, A, Bazzacco, D, Escrig, D, Fraile, LM, Lenzi, S, Marginean, N, Martinez, T, Napoli, DR, Schwengner, R, and Ur, CA

Abstract

The high-spin structure of the Z=76 nucleus Os-188 has been studied using the incomplete fusion reaction Li-7+W-186. A K-pi=10(+) band has been established up to spin (24(+)) and its crossing with the ground-state band has been studied. In addition, intrinsic high-K states have been identified and on top of two of them, K-pi=7(-) and K-pi=10(-), regular bands have been observed. The K-pi=16(+) and K-pi=18(+) states are yrast whereas the K-pi=14(+) level lies only 33 keV above the yrast line and decays with a low reduced hindrance of f(nu)< 1.3 to the ground-state band (Delta K=14). The results are discussed by means of a systematic comparison with the even-even neighboring nucleus Os-186. Configuration-constrained multiquasiparticle potential-energy-surface calculations have been performed to identify the configurations of multiquasiparticle states., The authors would like to thank Prof. Herbert H¨ubel from the University of Bonn for providing the 186W target. This work was supported by the Spanish Ministerio de Educaci´on y Ciencia within the programa Ram´on y Cajal and research Project Nos. FPA2005-00696 and FPA2007-66069 and by the Spanish Consolider-Ingenio 2010 Program CPAN (CSD2007- 00042).

Published
2009

28. Coherent Contributions to Isospin Mixing in the Mirror Pair As-67 and Se-67

Author

Orlandi, R, DE ANGELIS, G, Bizzeti, Pg, Lunardi, Santo, Gadea, A, BIZZETI SONA AM, Bracco, A, Brandolini, Franco, Carpenter, Mp, Chiara, Cj, DELLA VEDOVA, Francesca, Farnea, E, Greene, Jp, Lenzi, SILVIA MONICA, Leoni, S, Lister, Cj, Marginean, N, Mengoni, Daniele, Napoli, Dr, Singh, Bsn, Pechenaya, Ol, Recchia, Francesco, Reviol, W, Sahin, E, Sarantites, Dg, Seweryniak, D, Tonev, D, Ur, Ca, VALIENTE DOBON JJ, Wadsworth, R, Wiedemann, Kt, and Zhu, S.

Published
2009

29. Binary reaction decays from Mg-24+C-12

Author

Beck, C, Papka, P, Sanchez i Zafra, A, Thummerer, S, Azaiez, F, Bednarczyk, P, Courtin, S, Curien, D, Dorvaux, O, Lebhertz, D, Nourreddine, A, Rousseau, M, von Oertzen, W, Gebauer, B, Wheldon, C, Kokalova, T, de Angelis, G, Gadea, A, Lenzi, S, Szilner, S, Napoli, DR, Catford, WN, Jenkins, DG, and Royer, G

Published
2009

30. Evolution of deformation in the neutron-rich krypton isotopes: The Kr-96 nucleus

Author

Marginean, N, Bucurescu, D, Ur, Ca, Mihai, C, Corradi, L, Farnea, E, Filipescu, D, Fioretto, E, Ghita, D, Guiot, B, Gorska, M, IONESCU BUJOR, M, Iordachescu, A, JELAVIC MALENICA, D, Lenzi, SILVIA MONICA, Mason, P, Marginean, R, Mengoni, Daniele, Montagnoli, Giovanna, Napoli, Dr, Pascu, S, Pollarolo, G, Recchia, Francesco, Stefanini, Am, Silvestri, R, Sava, T, Scarlassara, Fernando, Szilner, S, and Zamfir, Nv

Published
2009

31. Nuclear structure 'southeast' of Pb-208: Isomeric states in Hg-208 and Tl-209

Author

Al-Dahan, N, Podolyak, Z, Regan, PH, Gorska, M, Grawe, H, Maier, KH, Gerl, J, Pietri, SB, Wollersheim, HJ, Alkhomashi, N, Deo, AY, Bacelar, AMD, Farrelly, G, Steer, SJ, Bruce, AM, Boutachkov, P, Domingo-Pardo, C, Algora, A, Benlliure, J, Bracco, A, Calore, E, Casarejos, E, Cullen, IJ, Detistov, P, Dombradi, Z, Doncel, M, Farinon, F, Gelletly, W, Geissel, H, Goel, N, Grebosz, J, Hoischen, R, Kojouharov, I, Kurz, N, Lalkovski, S, Leoni, S, Molina, F, Montanari, D, Morales, AI, Musumarra, A, Napoli, DR, Nicolini, R, Nociforo, C, Prochazka, A, Prokopowicz, W, Rubio, B, Rudolph, D, Schaffner, H, Strmen, P, Szarka, I, Swan, T, Thomas, JS, Valiente-Dobon, JJ, Verma, S, Walker, PM, and Weick, H

Published
2009

32. Yrast structure of the neutron-rich N=31 isotones (51)Ca and (52)Sc

Author

Fornal, B, Janssens, RVF, Broda, R, Marginean, N, Beghini, S, Corradi, L, Carpenter, MP, De Angelis, G, Della Vedova, F, Farnea, E, Fioretto, E, Gadea, A, Guiot, B, Honma, M, Krolas, W, Lauritsen, T, Lunardi, S, Mantica, PF, Mason, P, Montagnoli, G, Napoli, DR, Otsuka, Taka, Pawlat, T, Pollarolo, Giulia, Scarlassara, F, Stefanini, AM, Seweryniak, D, Szilner, S, Ur, CA, Trotta, M, Valiente-Dobon, JJ, Wrzesinski, J, and Zhu, S

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The low-lying yrast states in the 51 Ca and 52 Sc nuclei were investigated to obtain information on the evolution of the p 1 / 2 and f 5 / 2 neutron single-particle orbitals in neutron-rich nuclei near proton number Z = 20. Level structures associated with neutron excitations into these two orbitals and with proton excitations across the Z = 20 shell gap were identified. Shell-model calculations with the recently proposed GXPF1A interaction account reasonably well for the fp -shell states. The energy separation between the νp 1 / 2 and νf 5 / 2 orbitals in the Ca isotopes appears to be overestimated by the GXPF1A Hamiltonian. ispartof: Physical Review C, Nuclear Physics vol:77 issue:1 status: published

Published
2008

33. High spin structure and intruder configurations in P-31

Author

Ionescu-Bujor, M, Iordachescu, A, Napoli, DR, Lenzi, SM, Marginean, N, Otsuka, Taka, Utsuno, Y, Ribas, RV, Axiotis, M, Bazzacco, D, Bizzeti-Sona, AM, Bizzeti, PG, Brandolini, F, Bucurescu, D, Cardona, MA, de Angelis, G, De Poli, M, Della Vedova, F, Farnea, E, Gadea, A, Hojman, D, Kalfas, CA, Kroll, T, Lunardi, S, Martinez, T, Mason, P, Pavan, P, Quintana, B, Alvarez, CR, Ur, CA, Vlastou, R, and Zilio, S

Subjects
Nuclear Theory
Abstract

The nucleus 31 P has been studied in the 24 Mg( 16 O,2 αp ) reaction with a 70-MeV 16 O beam. A complex level scheme extended up to spins 17/2 + and 15/2 − , on positive and negative parity, respectively, has been established. Lifetimes for the new states have been investigated by the Doppler shift attenuation method. Two shell-model calculations have been performed to describe the experimental data, one by using the code ANTOINE in a valence space restricted to the sd shell, and the other by applying the Monte Carlo shell model in a valence space including the sd - fp shells. The latter calculation indicates that intruder excitations, involving the promotion of a T = 0 proton-neutron pair to the fp shell, play a dominant role in the structure of the positive-parity high-spin states of 31 P. ispartof: Physical Review C, Nuclear Physics vol:73 issue:2 status: published

Published
2006

34. High spin structure of S-34 and the proton-neutron coupling of intruder states

Author

Mason, P, Marginean, N, Lenzi, SM, Ionescu-Bujor, M, Della Vedova, F, Napoli, DR, Otsuka, Taka, Utsuno, Y, Nowacki, F, Axiotis, M, Bazzacco, D, Bizzeti, PG, Bizzeti-Sona, A, Brandolini, F, Cardona, M, de Angelis, G, Farnea, E, Gadea, A, Hojman, D, Iordachescu, A, Kalfas, C, Kroll, T, Lunardi, S, Martinez, T, Petrache, CM, Quintana, B, Ribas, RV, Alvarez, CR, Ur, CA, Vlastou, R, and Zilio, S

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The nucleus 34 S has been studied up to relatively high spin ( I = 10 ̄ h ) and up to an excitation energy of 16.64 MeV. Data are compared with different shell model calculations where effective interactions involving two main shells, the sd and the fp , are used. For the first time in an N = Z nucleus, it is observed that the promotion of an isoscalar ( T = 0) proton-neutron pair to the fp shell becomes energetically favored at high spin ispartof: Physical Review C, Nuclear Physics vol:71 issue:1 status: published

Published
2005

36. Coulomb energy differences in T=1 mirror rotational bands in Fe-50 and Cr-50 RID C-4732-2011

Author

Lenzi, Sm, Marginean, N, Napoli, Dr, Ur, Ca, Zuker, Ap, de Angelis, G, Algora, A, Axiotis, M, Bazzacco, D, Belcari, Nicola, Bentley, Ma, Bizzetti, Pg, Bizzeti Sona, A, Brandolini, F, von Brentano, P, Bucurescu, D, Cameron, Ja, Chandler, C, De Poli, M, Dewald, A, Eberth, H, Farnea, E, Gadea, A, Garces Narro, J, Gelletly, W, Grawe, H, Isocrate, R, Joss, Dt, Kalfas, Ca, Klug, T, Lampman, T, Lunardi, S, Martinez, T, Martinez Pinedo, G, Menegazzo, R, Nyberg, J, Podolyak, Z, Poves, A, Ribas, Rv, Alvarez, Cr, Rubio, B, Sanchez Solano, J, Spolaore, P, Steinhardt, T, Thelen, O, Tonev, D, Vitturi, A, von Oertzen, W, and Weiszflog, M.

Published
2001

37. Observation of double giant dipole resonance in fusion-evaporation reactions

Author

Viesti, Giuseppe, Rizzi, V, Cinausero, N, Gelli, N, Gadea, A, Bazzacco, D, ALGORA PINEDA, A, Appelbee, D, DE ANGELIS, G, Belcari, N, DE POLI, M, Drake, Te, Fabris, D, Farnea, E, Fioretto, E, GALINDO URIBARRI, A, Krolas, W, Kroll, T, Lucarelli, F, Lunardi, Santo, Lunardon, Marcello, Martinez, T, Menegazzo, R, Nayak, Bk, Nebbia, G, Napoli, Dr, Nyako, B, Petrache, C, Podolyak, Z, Prete, G, Alvarez, Cr, Spolaore, P, Ur, C, and Zuber, K.

Published
2001

39. Isospin mixing estimate in 64Ge

Author

Farnea, E, Gadea, A, de Angelis, G, Eberth, J, Steinhardt, T, Thelen, O, Algora, A, Bazzacco, D, Belcari, Nicola, Bizzeti, Pg, Bizzeti Sona AM, Brandolini, F, De Poli, M, Dewald, A, Fahlander, C, Fioretto, E, Gelletly, W, Isocrate, R, Kintz, N, Lenzi, Sm, Lunardi, S, Martinez, T, Napoli, Dr, Nyberg, J, Pavan, P, Petrache, Cm, Prete, Gf, Rossi Alvarez, C, Rubio, B, Rudolph, D, Skoda, S, Spolaore, P, Tain, Jl, Weiszflog, M, and Wyss, R.

Published
2000

41. The gamma-ray emission as a probe of entrance channel effects in fusion-evaporation reactions

Author

Cinausero, M., Gelli, N., Zhu, Lh, Viesti, G., Lucarelli, F., Bortignon, Pf, Bazzacco, D., Braguti, M., Brondi, A., Angelis, G., Poli, M., Fabris, D., Fiore, Em, Fiore, L., Fioretto, E., Bogdan Fornal, Gadea, A., La Rana, G., Lunardi, S., Lunardon, M., Medina, Nh, Moro, R., Napoli, Dr, Nebbia, G., Paticchio, V., Petrache, Cm, Prete, G., Alvarez, Cr, Vardaci, E., M., Cinausero, N., Gelli, L. H., Zhu, G., Viesti, F., Lucarelli, P. F., Bortignon, D., Bazzacco, M., Braguti, Brondi, Augusto, G., de Angeli, M. D., Poli, D., Fabri, E. M., Fiore, L., Fiore, E., Fioretto, B., Fornal, A., Gadea, LA RANA, Giovanni, S., Lunardi, M., Lunardon, N. H., Medina, Moro, RENATA EMILIA MARIA, D. R., Napoli, G., Nebbia, V., Paticchio, C. M., Petrache, G., Prete, C. R., Alvarez, and Vardaci, Emanuele

Subjects
GIANT-DIPOLE RESONANCE, SUPERDEFORMED BANDS, POPULATION HIGH SPIN STATES, EXCITATION-ENERGY, COMPOUND NUCLEUS
Abstract

The gamma-ray emission in heavy-ion fusion reactions at low bombarding energy has been studied to investigate possible entrance channel effects on the de-excitation of the compound nucleus. The analysis of the experimental data shows that the charge (N/Z ratio) and the mass asymmetries between target and projectile could influence the formation and the decay of the excited nuclear system.

Published
1998

47. Magnetic rotation in the odd-odd nuclei Rb-82,Rb-84

Author

Schnare, H., Schwengner, R., Frauendorf, S., Donau, F., Kaubler, L., Prade, H., Andrea Jungclaus, Lieb, Kp, Lingk, C., Skoda, S., Eberth, J., Angelis, G., Gadea, A., Farnea, E., Napoli, Dr, Ur, Ca, and Lo Bianco, G.

48. Variety of collective motions in the middle of the 1f(7/2) shell

Author

Brandolini, F., Lenzi, Sm, Medina, Nh, Napoli, Dr, Roberto V. Ribas, Ur, Ca, Bazzacco, D., Cameron, Ja, Angelis, G., Poli, M., Gadea, A., Lunardi, S., Alvarez, Cr, Somacal, H., Svensson, C., Poves, A., Sanchez-Solano, J., Rubio, B., Lozano, M., and Gelletly, W.

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