Author: "Ur C. A." / Topic: physics - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Ur C. A."' showing total 31 results

Start Over Author "Ur C. A." Topic physics

31 results on '"Ur C. A."'

1. Determination of level widths in 15N using nuclear resonance fluorescence

Author: Szücs T., Bemmerer D., Caciolli A., Fülöp Zs., Massarczyk R., Michelagnoli C., Reinhardt T. P., Schwengner R., Takács M. P., Ur C. A., Wagner A., and Wagner L.
Subjects: Physics, QC1-999
Abstract: Level widths in 15N have been measured with the nuclear resonance fluorescence (NRF) technique. Solid nitrogen compounds, bremsstrahlung, and HPGe detectors have been used as target, beam, and detectors, respectively. The preliminarily level widths are in agreement with the literature values, but more precise.
Published: 2015
Full Text: View/download PDF

2. The (n,γ) campaigns at EXILL

Author: Jolie J., Régis J.-M., Wilmsen D., Ahmed S., Pfeiffer M., Saed-Samii N., Warr N., Blanc A., Jentschel M., Köster U., Mutti P., Soldner T., Simpson G., De France G., Urban W., Drouet F., Vancraeyenest A., Baczyk P., Czerwinski M., Korgul A., Mazzocchi C., Rzaca-Urban T., Bruce A., Roberts O.J., Fraile L.M., Mach H., Paziy V., Ignatov A., Ilieva S., Kröll Th., Scheck M., Thürauf M., Ivanova D., Kisyov S., Lalkovski S., Podolyák Zs., Regan P.H., Korten W., Zielinska M., Salsac M.D., Habs D., Thirolf P.G., Ur C. A., Bernards C., Casten R.F., Cooper N., Werner V., Cakirli R.B., Leoni S., Benzoni G., Bocchi G., Bottoni S., Crespi F.C.L., Fornal B., Cieplicka N., Szpak B., Petrache C.M., Leguillon R., John R., Lorenz C., Massarczyk R., Schwengner R., Curien D., Lozeva R., Sengele L., Marginean N., and Lica R.
Subjects: Physics, QC1-999
Abstract: At the PF1B cold neutron beam line at the Institut Laue Langevin, the EXILL array consisting of EXOGAM, GASP and ILL-Clover detectors was used to perform (n,γ) measurements at very high coincidence rates. About ten different reactions were measured in autumn 2012 using a highly collimated cold neutron beam. In spring 2013, the EXOGAM array was combined with 16 LaBr3(Ce) scintillators in the EXILL&FATIMA campaign for the measurement of lifetimes using the generalised centroid difference method. We report on the properties of the set-ups and present first results from both campaigns.
Published: 2015
Full Text: View/download PDF

3. From EXILL (EXogam at the ILL) to FIPPS (FIssion Product Prompt γ-ray Spectrometer)

Author: Blanc A., Chebboubi A., de France G., Drouet F., Faust H., Jentschel M., Kessedjian G., Köster U., Leoni S., Materna T., Mutti P., Panebianco S., Sage C., Simpson G., Soldner T., Ur C. A., Urban W., and Vancraeyenest A.
Subjects: Physics, QC1-999
Abstract: Within the EXILL campaign a large and efficient cluster of Ge-detectors was installed around a very well collimated neutron beam. This has allowed to carry out rather complete spectroscopic studies close to the line of stability using the (n,γ) reaction. Neutron rich isotopes were produced by neutron induced fission and prompt spectroscopy was carried out. The isotope selection in this setup was based on a partially known level scheme and the use of triple coincidences. The latter is limiting the statistical sensitivity in the case of weak production yields. Based on the experiences of these campaigns we are currently developing a new setup: FIPPS (FIssion Product Prompt Spectroscopy). This setup combines a collimated neutron beam, a highly efficient cluster of Ge detectors, a gas filled magnet and auxiliary detectors. The presence of the gas filled magnet will allow us to identify fission products directly and should give access to a new quality of studies if compared to the EXILL campaign. The EXILL campaign and the FIPPS project are presented.
Published: 2015
Full Text: View/download PDF

4. Low-lying bands with different quadrupole deformation in 155Dy

Author: Petkov P., Yavahchova M.S., Möller O., Dewald A., Saha B., Fitzler A., Jessen K., Tonev D., Klug T., Heinze S., Jolie J., von Brentano P., Goutev N., Bazzacco D., Ur C. A., Farnea C. A., Axiotis M., Lunardi S., de Angelis G., Napoli D. R., Marginean N., Martinez T., and Caprio M. A.
Subjects: Physics, QC1-999
Abstract: To investigate the interplay between collective and single particle degrees of freedom in odd nuclei, Recoil distance Doppler-shift and Doppler-shift attenuation lifetime measurements were carried out for levels in 155Dy in coincidence detection of gamma-rays. 26 lifetimes were determined using the Differential decay curve method. Particle plus triaxial rotor model (PTRM) calculations were performed to compare the experimental level scheme and transition strengths with theoretical ones in order to get information on the quadrupole deformation (є,γ) of the bands. As a result, different quadrupole deformations for the one-quasineutron bands at low and medium spins are deduced.
Published: 2014
Full Text: View/download PDF

5. AGATA modules as Compton polarimeters for the measurement of gamma-ray linear polarisation

Author: Melon B., Bizzeti P. G., Sona P., Michelagnoli C., Bazzacco D., Farnea E., Bizzeti–Sona A. M., de Angelis G., Gadea A., Gottardo A., Lunardi S., Lenzi S. M., Menegazzo R., Mengoni D., Nannini A., Napoli D. R., Perego A., Recchia F., Sahin E., Valiente–Dobon J. J., and Ur C. A.
Subjects: Physics, QC1-999
Abstract: The ability of a cluster of three segmented Ge crystals (“AGATA module”) acting as a Compton polarimeter to measure the linear polarization of gamma rays has been investigated at an energy close to 511 keV. Partially polarized gamma rays have been produced by Coulomb excitation of the first excited state of 104Pd a and 108Pd.
Published: 2014
Full Text: View/download PDF

6. Towards experiments at the new ELI-NP facility

Author: Balabanski D. L., Cata-Danil G., Filipescu D., Gales S., Negoita F., Tesileanu O., Ur C. A., Ursu I., and Zamfir N. V.
Subjects: Physics, QC1-999
Abstract: The Extreme Light Infrastructure (ELI) Pan-European initiative represents a major step forward in quest for extreme electromagnetic fields. The Extreme Light Infrastructure – Nuclear Physics (ELI-NP) laboratory is one of the three pillars of the ELI project, that aims to use such extreme electromagnetic fields for nuclear physics and quantum electrodynamics research. At ELI-NP two ten petawatt high-power laser systems together with a very brilliant narrow-width γ beam are the main research tools. Here the current status of the project and the experimental program related to nuclear research, which is under preparation at ELI-NP, are presented.
Published: 2014
Full Text: View/download PDF

7. Mass correlation between light and heavy reaction products in multinucleon transfer $^{197}$Au+$^{130}$Te collisions

Author: Galtarossa, F., Corradi, L., Szilner, Suzana, Fioretto, E., Pollarolo, G., Mijatović, Tea, Montanari, D., Ackermann, D., Bourgin, D., Courtin, S., Fruet, G., Goasduff, A., Grebosz, J., Jelavić Malenica, Deša, Jeong, S. C., Jia, H. M., John, P. R., Mengoni, D., Milin, Matko, Montagnoli, G., Scarlassara, F., Skukan, N., Soić, Neven, Stefanini, A. M., Strano, E., Tokić, Vedrana, Ur, C. A., Valiente-Dobon, J. J., Watanabe, Y. X., Haas, F., 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 Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: International audience; We studied multinucleon transfer reactions in the Au197+Te130 system at Elab=1.07 GeV by employing the PRISMA magnetic spectrometer coupled to a coincident detector. For each light fragment we constructed, in coincidence, the distribution in mass of the heavy partner of the reaction. With a Monte Carlo method, starting from the binary character of the reaction, we simulated the de-excitation process of the produced heavy fragments to be able to understand their final mass distribution. The total cross sections for pure neutron transfer channels have also been extracted and compared with calculations performed with the grazing code.
Published: 2018

8. High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N=82 shell closure

Author: Kaya, L., Vogt, A., Reiter, P., Siciliano, M., Birkenbach, B., Blazhev, A., Coraggio, L., Teruya, E., Yoshinaga, N., Higashiyama, K., Arnswald, K., Bazzacco, D., Bracco, A., Bruyneel, B., Corradi, L., Crespi, F. C. L., de Angelis, G., Eberth, J., Farnea, E., Fioretto, E., Fransen, C., Fu, B., Gadea, A., Gargano, A., Giaz, A., Gorgen, A., Gottardo, A., Hadynska-Klek, K., Hess, H., Hetzenegger, R., Hirsch, R., Itaco, N., John, P. R., Jolie, J., Jungclaus, A., Korten, W., Leoni, S., Lewandowski, L., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatović, Tea, Montagnoli, G., Montanari, D., Muller-Gatermann, C., Napoli, D., Podolyak, Zs., Pollarolo, G., Pullia, A., Queiser, M., Recchia, F., Rosiak, D., Saed-Samii, N., Sahin, E., Scarlassara, F., Schneiders, D., Seidlitz, M., Siebeck, B., Smith, J. F., Soderstrom, P.-A., Stefanini, A. M., Steinbach, T., Stezowski, O., Szilner, Suzana, Szpak, B., Ur, C., Valiente-Dobon, J. J., Wolf, K., and Zell, K. O.
Subjects: multinucleon transfer, AGATA gamma array, Large-scale shell-model calculations, Physics
Abstract: The transitional nucleus 131Xe is investigated after multinucleon transfer in the 136Xe + 208Pb and 136Xe + 238U reactions employing the high-resolution Advanced γ -Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA at the Laboratori Nazionali di Legnaro, Italy, and as an elusive reaction product in the fusion-evaporation reaction 124Sn(11B,p3n) 131Xe employing the High-efficiency Observatory for γ -Ray Unique Spectroscopy (HORUS) γ -ray array coupled to a double-sided silicon strip detector at the University of Cologne, Germany. The level scheme of 131Xe is extended to 5 MeV. A pronounced backbending is observed at hω¯ ≈ 0.4 MeV along the negative-parity one-quasiparticle νh11/2(α = −1/2) band. The results are compared to the high-spin systematics of the Z = 54 isotopes and the N = 77 isotones. Large-scale shell-model calculations employing the PQM130, SN100PN, GCN50:82, SN100-KTH, and a realistic effective interaction reproduce the experimental findings and provide guidance to elucidate the structure of the high-spin states. Further calculations in 129−132Xe provide insight into the changing nuclear structure along the Xe chain towards the N = 82 shell closure. Proton occupancy in the π 0h11/2 orbital is found to be decisive for the description of the observed backbending phenomenon.
Published: 2018

9. High-spin structures in Xe-132 and Xe-133 and evidence for isomers along the N=79 isotones

Author: Vogt, A.: Siciliano, Birkenbach, B., Reiter, P., Hadynska-Klek, K., Wheldon, C., Valiente-Dobon, J. J., Teruya, E., Yoshinaga, N., Arnswald, K., Bazzacco, D., Blazhev, A., Bracco, A., Bruyneel, B., Chakrawarthy, R. S., Chapman, R., Cline, D., Corradi, L., Crespi, F. C. L., Cromaz, M., de Angelis, G., Eberth, J., Fallon, P., Farnea, E., Fioretto, E., Fransen, C., Freeman, S. J., Fu, B., Gadea, A., Gelletly, W., Giaz, A., Gorgen, A., Gottardo, A., Hayes, A. B., Hess, H., Hetzenegger, R., Hirsch, R., Hua, H., John, P. R., Jolie, J., Jungclaus, A., Karayonchev, V., Kaya, L., Korten, W., Lee, I. Y., Leoni, S., Liang, X., Lunardi, S., Macchiavelli, A. O., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, Tea, Montagnoli, G., Montanari, D., Muller-Gatermann, C., Napoli, D., Pearson, C. J., Podolyak, Zs., Pollarolo, G., Pullia, A., Queiser, M., Recchia, F., Regan, P. H., Regis, J.-M., Saed-Samii, N., Sahin, E., Scarlassara, F., Seidlitz, M., Siebeck, B., Sletten, G., Smith, J. F., Soderstrom, P.-A., Stefanini, A. M., Stezowski, O., Szilner, Suzana, Szpak, B., Teng, R., Ur, C., Warner, D. D., Wolf, K., Wu, C. Y., and Zell, K. O.
Subjects: Physics, nuclear structure, high-spin isomers
Abstract: The transitional nuclei Xe-132 and Xe-133 are investigated after multinucleon-transfer (MNT) and fusionevaporation reactions. Both nuclei are populated (i) in Xe-136 + 2(08P)b MNT reactions employing the highresolution Advanced GAmma Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA, (ii) in the Xe-136 + Pt-198 MNT reaction employing the GAMMASPHERE spectrometer in combination with the gas-detector array CHICO, and (iii) as an evaporation residue after a Te-130(alpha, xn) Xe134-xn fusion-evaporation reaction employing the HORUS gamma-ray array at the University of Cologne. The high-spin level schemes are considerably extended above the J(pi) = (7(-)) and (10+) isomers in Xe-132 and above the 11/2(-) isomer in Xe-133. The results are compared to the high-spin systematics of the Z = 54 as well as the N = 78 and N = 79 chains. Furthermore, evidence is found for a long-lived (T-1/2 >> mu s) isomer in Xe-133 which closes a gap along the N = isotones. Shell-model calculations employing the SN100PN and PQM130 effective interactions reproduce the experimental findings and provide guidance to the interpretation of the observed high-spin features.
Published: 2017

10. The (n,gamma) campaigns at EXILL

Author: Regis , J-M., Wilmsen, D., Ahmed, S., Pfeiffer, M., Saed-Samii, N., Warr, N., Blanc, A., Jentschel, M., Koeste, U., Mutti, P., Soldner, T., Simpson, G., De France, G., Urban, W., Drouet, Françoise, Vancraeyenest, A., Baczyk, P., Czerwinski, M., Korgul, A., Mazzocchi, C., Rzaca-Urban, T., Bruce, A., Roberts O., J., Fraile L., M., Mach, H., Paziy, V., Ignatov, A., Ilieva, S., Kroell, Th., Scheck, M., Thuerauf, M., Ivanova, D., Kisyov, S., Lalkovski, S., Podolyak, Zs., Regan P., H., Korten, W., Zielinska, M., Salsac M., D., Habs, D., Thirolf P., G., Ur C., A., Bernards, C., Casten R., F., Cooper, N., Werner, V., Cakirli R., B., Leoni, S., Benzoni, G., Bocchi, G., Bottoni, S., Crespi F. C., L., Fornal, B., Cieplicka, N., Szpak, B., Petrache C., M., Leguillon, R., John, R., Lorenz, C., Massarczyk, R., Schwengner, R., Curien , D., Lozeva, R., Sengele, L., Marginean, N., Lica, R., and Jolie, J.
Subjects: Physique, Astrophysics::High Energy Astrophysical Phenomena, Physics, Physique Nucléaire Expérimentale, Nuclear Experiment
Abstract: At the PF1B cold neutron beam line at the Institut Laue Langevin, the EXILL array consisting of EXOGAM, GASP and ILL-Clover detectors was used to perform (n,gamma) measurements at very high coincidence rates. About ten different reactions were measured in autumn 2012 using a highly collimated cold neutron beam. In spring 2013, the EXOGAM array was combined with 16 LaBr3(Ce) scintillators in the EXILL&FATIMA campaign for the measurement of lifetimes using the generalised centroid difference method. We report on the properties of the set-ups and present first results from both campaigns.
Published: 2015

11. Compound nucleus spin distribution for $^{64}Ni + ^{100}Mo$

Author: Singh, V., Ackermann, D., Itkis, M. G., Kniajeva, G. N., Kozulin, E. M., Martinez, T., Marginean, N., Menegazzo, R., Montagnoli, G., Napoli, D. R., Oganessian, Y. T., Ruan, M., Antalic, S., Sagaidak, R. N., Scarlassara, F., Stefanini, A. M., Szilner, S., Ur, C., Axiotis, M., Bazzacco, D., Corradi, L., Angelis, G. De., Farnea, E., Gadea, A., and Heßberger, F.
Subjects: Physics
Abstract: GSI Scientific Report 2013 - GSI Report 2014-1
Published: 2014
Full Text: View/download PDF

12. HEROICA: an Underground Facility for the Fast Screening of Germanium Detectors

Author: Andreotti, E., Garfagnini, A., Maneschg, W., Barros, N., Benato, G., Brugnera, R., Costa, F., Falkenstein, R., Guthikonda, K., Hegai, A., Hemmer, S., Hult, M., Jaenner, K., Kihm, T., Lehnert, B., Liao, H., Lubashevskiy, A., Lutter, G., Marissens, G., Modenese, L., Pandola, L., Reissfelder, M., Sada, C., Salathe, M., Schmitt, C., Schulz, O., Schwingenheuer, B., Turcato, M., Ur, C., von Sturm, K., Wagner, V., and Westermann, J.
Subjects: Physics, Physics - Instrumentation and Detectors, Test facility, Orders of magnitude (temperature), Nuclear engineering, Detector, chemistry.chemical_element, FOS: Physical sciences, Germanium, Cosmic ray, Instrumentation and Detectors (physics.ins-det), chemistry, Double beta decay, Muon flux, Nuclear Experiment (nucl-ex), Nuclear Experiment, Instrumentation, Mathematical Physics, Diode
Abstract: An infrastructure to characterize germanium detectors has been designed and constructed at the HADES Underground Research Laboratory, located in Mol (Belgium). Thanks to the 223m overburden of clay and sand, the muon flux is lowered by four orders of magnitude. This natural shield minimizes the exposure of radio-pure germanium material to cosmic radiation resulting in a significant suppression of cosmogenic activation in the germanium detectors. The project has been strongly motivated by a special production of germanium detectors for the GERDA experiment. GERDA, currently collecting data at the Laboratori Nazionali del Gran Sasso of INFN, is searching for the neutrinoless double beta decay of 76Ge. In the near future, GERDA will increase its mass and sensitivity by adding new Broad Energy Germanium (BEGe) detectors. The production of the BEGe detectors is done at Canberra in Olen (Belgium), located about 30km from the underground test site. Therefore, HADES is used both for storage of the crystals over night, during diode production, and for the characterization measurements. A full quality control chain has been setup and tested on the first seven prototype detectors delivered by the manufacturer at the beginning of 2012. The screening capabilities demonstrate that the installed setup fulfills a fast and complete set of measurements on the diodes and it can be seen as a general test facility for the fast screening of high purity germanium detectors. The results are of major importance for a future massive production and characterization chain of germanium diodes foreseen for a possible next generation 1-tonne double beta decay experiment with 76Ge., Comment: Submitted to JINST
Published: 2013

13. Measurement of the half-life of the two-neutrino double beta decay of Ge-76 with the Gerda experiment

Author: GERDA Collaboration, Agostini, M., Allardt, M., Andreotti, E., Bakalyarov, A. M., Balata, M., Barabanov, I., Heider, M. Barnabe, Barros, N., Baudis, L., Bauer, C., Becerici-Schmidt, N., Bellotti, E., Belogurov, S., Belyaev, S. T., Benato, G., Bettini, A., Bezrukov, L., Bode, T., Brudanin, V., Brugnera, R., Budjas, D., Caldwell, A., Cattadori, C., Chernogorov, A., Cossavella, F., Demidova, E. V., Denisov, A., Domula, A., Egorov, V., Falkenstein, R., Ferella, A. D., Freund, K., Froborg, F., Frodyma, N., Gangapshev, A., Garfagnini, A., Gazzana, S., Grambayr, P., Gurentsov, V., Gusev, K., Guthikonda, K. K., Hampel, W., Hegai, A., Heisel, M., Hemmer, S., Heusser, G., Hofmann, W., Hult, M., Inzhechik, L. V., Ioannucci, L., Csathy, J. Janicsko, Jochum, J., Junker, M., Kianovsky, S., Kirpichnikov, I. V., Kirsch, A., Klimenko, A., Knoepfle, K. T., Kochetov, O., Kornoukhov, V. N., Kusminov, V., Laubenstein, M., Lazzaro, A., Lebedev, V. I., Lehnert, B., Liao, H. Y., Lindner, M., Lippi, I., Liu, X., Lubashevskiy, A., Lubsandorzhiev, B., Lutter, G., Machado, A. A., Majorovits, B., Maneschg, W., Nemchenok, I., Nisi, S., O'Shaughnessy, C., Pandola, L., Pelczar, K., Peraro, L., Pullia, A., Riboldi, S., Ritter, F., Sada, C., Salathe, M., Schmitt, C., Schoenert, S., Schreiner, J., Schulz, O., Schwingenheuer, B., Shevchik, E., Shirchenko, M., Simgen, H., Smolnikov, A., Stanco, L., Strecker, H., Tarka, M., Ur, C. A., Vasenko, A. A., Volynets, O., von Sturm, K., Walter, M., Wegmann, A., Wojcik, M., Yanovich, E., Zavarise, P., Zhitnikov, I., Zhukov, S. V., Zinatulina, D., Zuber, K., and Zuzel, G.
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Half-life, chemistry.chemical_element, FOS: Physical sciences, Germanium, Semiconductor detector, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), chemistry, Double beta decay, Liquid argon, Neutrino, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: The primary goal of the GERmanium Detector Array (Gerda) experiment at the Laboratori Nazionali del Gran Sasso of INFN is the search for the neutrinoless double beta decay of Ge-76. High-purity germanium detectors made from material enriched in Ge-76 are operated directly immersed in liquid argon, allowing for a substantial reduction of the background with respect to predecessor experiments. The first 5.04 kg yr of data collected in Phase I of the experiment have been analyzed to measure the half-life of the neutrino-accompanied double beta decay of Ge-76. The observed spectrum in the energy range between 600 and 1800 keV is dominated by the double beta decay of Ge-76. The half-life extracted from Gerda data is T(1/2) = (1.84 +0.14 -0.10) 10^{21} yr., 14 pages, 2 figures, submitted to J. Phys. G: Nucl. Part. Phys
Published: 2012

14. Spectroscopy of Moderately Neutron-rich Nuclei with the CLARA-PRISMA Setup.

Author: Gadea, A., Marginean, N., Farnea, E., Lenzi, S. M., de Angelis, G., Napoli, D. R., Corradi, L., Stefanini, A. M., Fioretto, E., Szilner, S., Axiotis, M., Behera, B. R., Latina, A., Rusu, C., Zhimin, W., Valiente-Dobón, J., Pokrovskiy, I., Bazzacco, D., Beghini, S., and Ur, C.
Subjects: NEUTRONS, PARTICLES (Nuclear physics), NUCLEAR physics, PHYSICS, SPECTRUM analysis
Abstract: Deep-inelastic and multi-nucleon transfer reactions can be used to populate nuclei with relatively large neutron excess. Recently, at the Laboratori Nazionali di Legnaro, a setup consisting on an efficient γ-ray detection system CLARA coupled to the large acceptance magnetic spectrometer PRISMA, capable of tracking the trajectories of the reaction products, has been assembled. During the first year of activity, the experiments performed with the CLARA-PRISMA setup, have been focused mainly on the nuclear structure of neutron-rich nuclei. In particular, nuclei around N=20, N=50 and lying in the A∼60 transitional region with N<40, have been investigated. In this contribution, results of these experiments will be reported. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]
Published: 2006
Full Text: View/download PDF

15. Test of the critical point symmetry X(5) in neutron deficient osmium isotopes at A≈180.

Author: Dewald, A., Möller, O., Melon, B., Pissulla, T., Saha, B., Heinze, S., Jolie, J., Zell, K. O., Petkov, P., Bazzacco, D., Lunardi, S., Ur, C. A., Farnea, E., Menegazzo, R., De Angelis, G., Tonev, D., Napoli, D. R., Marginean, N., Martinez, T., and Axiotis, M.
Subjects: NEUTRONS, PARTICLES (Nuclear physics), OSMIUM isotopes, OSMIUM, NUCLEAR physics, PHYSICS
Abstract: The energy spectra and relative transition rates of 176,178,180Os were found to be very similar to the values calculated in the framework of the critical point symmetry X(5). In order to enable more stringent tests, including also absolute transition probabilities, two coincidence RDDS lifetime measurements were performed at the Laboratori Nazionali di Legnaro with the GASP spectrometer using the 152,154Sm(29Si,5n)176,178Os reactions. The deduced transition quadrupole moments in 178Os agree well with the X(5) predictions. For 176Os only preliminary results were obtained so far. These preliminary data support an X(5) like structure also in the case of 176Os. The experimental data of both nuclei are compared to calculations in the framework of the interacting boson model (IBM) and of the general collective model (GCM). © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]
Published: 2006
Full Text: View/download PDF

16. Shape Coexistence in Pb Nuclei Probed by Static Electromagnetic Moments.

Author: Ionescu-Bujor, M., Iordachescu, A., Marginean, N., Ur, C. A., Bucurescu, D., Suliman, G., Rusu, C., Balabanski, D. L., Bazzacco, D., Brandolini, F., Chmel, S., De Poli, M., Hübel, H., Medina, N. H., Neyens, G., Pavan, P., Ribas, R. V., and Rossi Alvarez, C.
Subjects: LEAD, ELECTROMAGNETISM, DIPOLE moments, ANGULAR correlations (Nuclear physics), NUCLEAR physics, PHYSICS
Abstract: Spectroscopic quadrupole moment measurements for high-spin isomeric states in 192,193,194Pb nuclei have been performed by the time-differential perturbed γ-ray angular distribution method. The quadrupole moments of the isomers described by quasineutron configurations in neutron-deficient Pb nuclei are well reproduced by the pairing plus quadrupole model, which predicts for these states a very small prolate deformation β2 ≈0.02. The quadrupole moment of the 11- isomeric state in 192Pb involving the π(3s1/2-2 1h9/2 1i13/2) configuration corresponds to a deformation β2=-0.11(1). The quadrupole moments of the proton intruder states in Pb nuclei are compared with theoretical predictions of tilted-axis cranking, mean-field and interacting boson models. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]
Published: 2006
Full Text: View/download PDF

17. Nuclear clusters and structure in light nuclei.

Author: Kokalova, Tz., Von Oertzen, W., Thummerer, S., Bohlen, H. G., Milin, M., Tumino, A., De Angelis, G., Farnea, E., Axiotis, M., Marginean, N., Napoli, D. R., Lenzi, S. M., Ur, C., Rousseau, M., and Papka, P.
Subjects: CLUSTER theory (Nuclear physics), PHYSICS, EMISSIONS (Air pollution), DIPOLE moments, CONDUCTION electrons
Abstract: We have studied the γ-decay properties of 21Ne up to the limits of the particle emission thresholds in order to establish the band structure. The GASP γ-ray detector array together with the multi-detector array, ISIS, were used for the selection of the reaction channels. The reaction 16O(7Li,pn)21Ne has been studied at E=29 MeV. The observed decays in 21Ne, support the identification of parity doublets with states of opposite parity connected by strong dipole transitions. The behaviour of the octupole deformed bands in 21Ne is interpreted as consisting of an intrinsic reflection asymmetric (4He+16O)-structure with an additional valence neutron in σ- and π-orbitals. Using the same experimental set-up the emission of the light unbound cluster 8Be has been studied in the reaction 18O+13C→31Si→23Ne+8Be. The emission has been studied relative to the sequential emission of 2α-particles. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]
Published: 2004
Full Text: View/download PDF

18. Lifetime measurement in 74Kr and 76Kr.

Author: Görgen, A., Clément, E., Chatillon, A., Dewald, A., Korten, W., Le Coz, Y., Mǎrginean, N., Melon, B., Menegazzo, R., Möller, O., Theisen, Ch., Tonev, D., Ur, C. A., and Zell, K. O.
Subjects: PHYSICAL measurements, KRYPTON, NOBLE gases, GAMMA rays, COULOMB excitation, PROTON decay, PHYSICS
Abstract: Lifetimes of excited states in the ground-state bands of 74Kr and 76Kr were measured using the recoil-distance Doppler-shift and the differential decay curve methods. The states were populated in the 40Ca(40Ca, α2 p) and 40Ca(40Ca, 4 p) reactions. Gamma rays were detected with the GASP array which was coupled to the Cologne Plunger device. The results resolve discrepancies between earlier lifetime measurements and a recent Coulomb excitation experiment. Experimental transition rates are compared to theoretical calculations. The results support a strong mixing between prolate and oblate configurations for the low-spin states, and represent an important basis for the interpretation and understanding of the shape coexistence phenomenon in this mass region. [ABSTRACT FROM AUTHOR]
Published: 2005
Full Text: View/download PDF

19. Spectroscopy of 40Ca and negative-parity bands.

Author: Torilov, S., Thummerer, S., Oertzen, W. von, Kokalova, Tz, de Angelis, G., Bohlen, H. G., Tumino, A., Axiotis, M., Farnea, E., Marginean, N., Martinez, T., Napoli, D. R., Poli, M. De, Lenzi, S. M., Ur, C., Rousseau, M., and Papka, P.
Subjects: SPECTRUM analysis, SILICA, MAGNESIUM, IRON, PHYSICS, CALCIUM
Abstract: We have studied the reactions 28Si + 24Mg ¯→52Fe→40Ca* + 3α as well as the binary channel 52Fe→40Ca* + 12C*, in order to search for deformed states, which form rotational bands in 40Ca. We observe positive- and negative-parity bands. The negative-parity band is proposed to be a partner of an inversion doublet with the positive-parity states being based on 4p-4h configurations. The properties of the positive-parity states are discussed on the basis of the shell model and the parity doublet on the basis of a cluster model with intrinsic reflection asymmetric shapes. [ABSTRACT FROM AUTHOR]
Published: 2004
Full Text: View/download PDF

20. Plunger Lifetime Measurements in 102Pd.

Author: Kalyva, G., Spyrou, A., Axiotis, M., Harissopulos, S., Dewald, A., Fitzler, A., Saha, B., Liennemann, A., Vlastou, R., Napoli, D. R., Marginean, N., Rusu, C., de Angelis, G., Ur, C., Bazzacco, D., Farnea, E., Balabanski, D. L., and Julin, R.
Subjects: NUCLEAR physics, SPECTRUM analysis, PHASE transitions, PHYSICS, NUCLEAR structure
Abstract: Recently, an intense experimental effort has been devoted to the search of empirical proofs of critical-point symmetries in nuclear structure. These symmetries describe shape-phase transitions and provide parameter-free predictions (up to over-all scale factors) for excitation spectra and B(E2) values. This contribution reports on recent plunger-lifetime measurements ON 102Pd carried out at LNL, Legnaro, with the Cologne plunger apparatus coupled to the GASP spectrometer and using the 92Zr(13C,3n)102Pd reaction at 48 MeV. According to the results of our measurements, 102Pd is so far the best known paradigm of the E(5) critical-point symmetry. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]
Published: 2006
Full Text: View/download PDF

21. Multinucleon transfer reactions studied with the heavy-ion magnetic spectrometer PRISMA.

Author: Gross, Carl J., Nazarewicz, Witold, Rykaczewski, Krzysztof P., Corradi, L., Stefanini, A. M., Szilner, S., Beghini, S., Behera, B. R., Farnea, E., Gadea, A., Fioretto, E., Haas, F., Latina, A., Marginean, N., Montagnoli, G., Pollarolo, G., Scarlassara, F., Trotta, M., and Ur, C.
Abstract: Recent inclusive measurements on multinucleon transfer reactions reveal important information on the interplay between single-particle and nucleon pair degrees of freedom. More detailed studies are being performed with the new magnetic spectrometer PRISMA, coupled to the CLARA γ-array. [ABSTRACT FROM AUTHOR]
Published: 2005
Full Text: View/download PDF

22. AGATA-Advanced GAmma Tracking Array

Author: A. Colombo, Y. Mariette, A. Johnson, W. Korten, A. Brondi, T. Faul, J. Robin, R. Depalo, M. Slee, J. Gre¸bosz, H. C. Boston, H. Harroch, B. Rossé, M. Filliger, M. Gulmini, A. Korichi, S. Brambilla, J.R. Cresswell, C. Parisel, P. Edelbruck, F. Ameil, F. Camera, C. Oziol, Matthew Richard Dimmock, G. Salvato, F. Morbiducci, J. Ropert, M. Borsato, E. Legay, Marco Bellato, C. Santos, Gheorghe Pascovici, L. Charles, J. Pancin, G. Casati, P. G. Bizzeti, T. Stanios, S. Lhenoret, Diego Barrientos, P.M. Jones, Andreas Görgen, V. Chambert, S. Aydin, K. Hauschild, B. Hervieu, R. Nicolini, J. Simpson, H. J. Wollersheim, L. Lavergne, Pär-Anders Söderström, G. S. Simpson, G. Jaworski, F. Filmer, R. Griffiths, P.S. Morrall, M. Petcu, G. Lo Bianco, D. Linget, A. Givechev, D. C. Oxley, M. Kogimtzis, F. Salomon, J. Jolie, D. Wells, S. Moon, C. Aufranc, A. Corsi, T. Descombes, N. Goel, J. Thornhill, N. Warr, Serkan Akkoyun, B. Birkenbach, F. Dorangeville, Joël Chavas, P. Medina, Roberto Isocrate, C. Weber, E. Merchan, Bo Cederwall, I. Kojouharov, Enrique Sanchis, A. Lopez-Martens, Oliver Wieland, F. Le Blanc, D. Seddon, S. C. Letts, D. Bazzacco, J. Leske, B. Bruyneel, Alberto Pullia, L. Nelson, G. La Rana, B. Travers, I. Burrows, G. Maron, S. Coelli, J. J. Valiente-Dobón, F. Saillant, Piotr Bednarczyk, V.L. Ngo, J. Mierzejewski, Norbert Pietralla, R.S. Kempley, N. Kurz, M. Rebeschini, S. Fantinel, D. L. Balabanski, A. J. Boston, F. Tomasi, R. Berthier, M. D. Salsac, B. Dulny, C. Stahl, N. Dosme, C. Fanin, R. Baumann, S. Pietri, A. Astier, M. Nicoletto, J. van der Marel, A. Bracco, Björn Jonson, D. Mengoni, D. Bloor, Luna Pellegri, F. Lefebvre, D. Pugnére, J. Egea, S. Cabaret, D. Curien, M. Reese, C. Commeaux, Dirk Rudolph, A. Giannatiempo, F. Recchia, L. Ramina, A. Lermitage, C. A. Ur, R. M. Lieder, I.P. Brawn, R. Menegazzo, R. Raine, Krasimir Mitev, D. R. Napoli, G. Suliman, M. Kebbiri, Y. Drouen, Susan Rigby, W. Me¸czyński, R. Wadsworth, F. Didierjean, P. Desesquelles, Ch. Veyssiere, S. Leoni, Vicente González, P. Gros, Y. Le Noa, M. Castoldi, O. Möller, R. Orlandi, Thomas Beck, M. Şenyiğit, A. Jungclaus, L. Gibelin, Mohammed Kaci, Zs. Podolyák, J. Gerl, S. Erturk, W. Gast, B. Melon, V. Mendéz, R. Peghin, P. Molini, M. N. Erduran, D. Conventi, Pankaj S. Joshi, E. Clément, F.A. Beck, A. Austin, A. Cortesi, J. Palin, P. Cocconi, L. J. Harkness, F. C. L. Crespi, Dirk Weisshaar, P. Sona, A. Czermak, D. Lersch, N. Blasi, Anton Khaplanov, O. Stezowski, B. Rubio, R. Venturelli, M.-H. Sigward, E. Viscione, José Salt, C. S. Özben, Giancarlo Ripamonti, P. Spolaore, Johan Nyberg, S. M. Lenzi, L. Legeard, N. Redon, C. Rossi Alvarez, C. He, R. Chapman, P. Le Pouhalec, C. Diarra, Herbert Hess, T. Engert, A. Kaşkaş, Stanislav Tashenov, S. Klupp, C. Michelagnoli, Elif Ince, A. Algora, J. F. Smith, M. Ozille, Alessandro Zucchiatti, Angelo Geraci, A. Olariu, M. Labiche, N. Karkour, Stefano Riboldi, P. Bourgault, C. M. Petrache, M. Palacz, M. El Chambit, J.-L. Cercus, M. Zie¸bliński, Alex Wiens, R. Beunard, X. Lafay, T. Habermann, M. Karolak, L. Costa, Y. Aubert, Begoña Quintana, A P Robinson, V. F. E. Pucknell, D. Rosso, A. Capsoni, Emanuele Vardaci, L. Mihailescu, M. Tripon, E. Farnea, Ch. Theisen, Enrico Calore, G. Duchêne, N. V. Zamfir, X. Grave, S. Lunardi, I.H. Lazarus, José Blasco, D. Montanari, J.A. Sampson, P. H. Regan, N. Marginean, M. Pignanelli, L. Arnold, G. Benzoni, R. Krücken, G. de Angelis, D.P. Scraggs, I. Piqueras, D. M. Cullen, A. Obertelli, A. Bürger, D. Bortolato, G. Rainovski, A.R. Mather, P. Reiter, C. Unsworth, G. Baulieu, P. J. Coleman-Smith, C. Boiano, M. Richer, Sébastien Perrier, Agnese Giaz, Reynold J. Cooper, V. Vandone, S. Tanguy, C. Domingo-Pardo, A. Bouty, A. N. Grint, A. Maj, A. Gottardo, L. Berti, E. Pachoud, R. Marginean, E. A. Stefanova, A. Triossi, M. Nespolo, D. Bucurescu, R. Moro, H.T.M. Ha, D. S. Judson, J. L. Tain, A. Perego, Francesco Lelli, P. Detistov, B.Y. Ky, J. Ljungvall, B. Sowicki, M. Schlarb, F. Azaiez, P. Pariset, Ertan Şahin, R. Gernhäuser, M. Turcato, John Paul Strachan, B. Million, A. Atac, F. Carrio, D. Delbourg, F. Veronese, Th. Kröll, B. Cahan, A. Hernandez-Prieto, M. A. Bentley, K.M.M. Tun-Lanoë, B. Alikhani, P. Boutachkov, S. Leboutelier, Maria Doncel, A. M. Bizzeti-Sona, R. Touzery, A. Nannini, A. Lotode, P. J. Nolan, G. Rampazzo, F. Zocca, H. Schaffner, J. Eberth, A. Gadea, N. Toniolo, T. Hüyük, Q.T. Doan, P. Petkov, S. Broussard, S. Badoer, M. Rigato, Philip M Walker, J. Pouthas, Ch. Finck, L. Milechina, M. Norman, E. Pierre, J. Roccaz, S.J. Colosimo, Lázaro Guevara, Glyn Wittwer, Millan, Vicente Gonzalez -- 0000-0001-6014-2586, Rainovski, Georgi -- 0000-0002-1729-0249, Jaworski, Grzegorz -- 0000-0003-2241-0329, KORTEN, Wolfram -- 0000-0002-3940-0816, Domingo-Pardo, Cesar -- 0000-0002-2915-5466, Triossi, Andrea -- 0000-0001-5140-9154, Huyuk, Tayfun -- 0000-0003-0597-9767, Ince, Elif -- 0000-0003-4821-5441, Algora, Alejandro -- 0000-0002-5199-1794, Calore, Enrico -- 0000-0002-2301-3838, Rubio, Berta -- 0000-0002-9149-4151, THEISEN, Christophe -- 0000-0002-8509-1022, Rudolph, Dirk -- 0000-0003-1199-3055, Gadea, Andres -- 0000-0002-4233-1970, santos, cayetano -- 0000-0003-0727-1914, nannini, adriana -- 0000-0003-0659-7648, Depalo, Rosanna -- 0000-0003-3943-7982, Suliman, gabriel -- 0000-0001-8475-1992, Blasco, Jose-Maria -- 0000-0002-7663-9092, Petrache, Costel -- 0000-0001-8419-1390, Pietralla, Norbert -- 0000-0002-4797-3032, Cederwall, Bo -- 0000-0003-1771-2656, Zucchiatti, Alessandro -- 0000-0002-3647-596X, Mendez Munoz, Victor -- 0000-0002-9044-1189, Kruecken, Reiner -- 0000-0002-2755-8042, Napoli, Daniel Ricardo -- 0000-0002-8154-6958, Tain, Jose L. -- 0000-0002-3263-6965, SANCHIS, ENRIQUE -- 0000-0002-9689-9131, Zieblinski, Miroslaw -- 0000-0002-8693-7317, Hauschild, Karl -- 0000-0003-2862-2445, Montanari, Daniele -- 0000-0002-1980-7686, senyigit, menekse -- 0000-0002-2408-4419, La Rana, Giovanni -- 0000-0003-2814-4113, Menegazzo, Roberto -- 0000-0002-3060-5276, Soderstrom, Par-Anders -- 0000-0002-9504-2814, Unsworth, Carl -- 0000-0002-4100-7466, Camera, Franco -- 0000-0003-1731-4834, Gorgen, Andreas -- 0000-0003-1916-9941, Hernandez Prieto, Alvaro -- 0000-0002-0340-0240, Recchia, Francesco -- 0000-0002-8428-0112, de France, Gilles -- 0000-0002-7439-1759, GOTTARDO, Andrea -- 0000-0002-0390-5767, Perrier, Sebastien -- 0000-0001-5055-9046, Sowicki, Bogdan -- 0000-0002-7208-0690, Robinson, Andrew -- 0000-0002-2510-1321, Sahin, Eda -- 0000-0003-0683-5140, Pullia, Alberto -- 0000-0002-6393-747X, Lelli, Francesco -- 0000-0003-1900-9171, Clement, Emmanuel -- 0000-0003-1887-717X, benzoni, giovanna -- 0000-0002-7938-0338, Jonson, Bjorn -- 0000-0002-9697-9115, Bednarczyk, Piotr -- 0000-0002-5699-5292, Jones, Pete -- 0000-0001-7480-6603, Nicoletto, Marino -- 0000-0001-9301-0782, Ripamonti, Giancarlo -- 0000-0002-9406-021X, Bentley, Michael -- 0000-0001-8401-3455, Pellegri, Luna -- 0000-0002-3227-3332, Barrientos, Diego -- 0000-0001-9693-2942, GIAZ, Agnese -- 0000-0002-2550-450X, [Boston, A. J. -- Boston, H. C. -- Colosimo, S. -- Cooper, R. J. -- Cresswell, J. R. -- Dimmock, M. R. -- Filmer, F. -- Grint, A. N. -- Harkness, L. J. -- Judson, D. S. -- Mather, A. R. -- Moon, S. -- Nelson, L. -- Nolan, P. J. -- Norman, M. -- Oxley, D. C. -- Rigby, S. -- Sampson, J. -- Scraggs, D. P. -- Seddon, D. -- Slee, M. -- Stanios, T. -- Thornhill, J. -- Unsworth, C. -- Wells, D.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England -- [Akkoyun, S. -- Atac, A. -- Kaskas, A. -- Senyigit, M.] Ankara Univ, Fac Sci, Dept Phys, TR-06100 Ankara, Turkey -- [Algora, A. -- Barrientos, D. -- Domingo-Pardo, C. -- Egea, J. -- Gadea, A. -- Hueyuek, T. -- Kaci, M. -- Mendez, V. -- Rubio, B. -- Salt, J. -- Tain, J. L.] Univ Valencia, CSIC, IFIC, E-46980 Paterna, Spain -- [Alikhani, B. -- Boutachkov, P. -- Givechev, A. -- Goel, N. -- Leske, J. -- Merchan, E. -- Moeller, O. -- Pietralla, N. -- Reese, M. -- Stahl, C.] Tech Univ Darmstadt, IKP, D-64289 Darmstadt, Germany -- [Ameil, F. -- Beck, T. -- Boutachkov, P. -- Domingo-Pardo, C. -- Engert, T. -- Gerl, J. -- Goel, N. -- Habermann, T. -- Kojouharov, I. -- Kurz, N. -- Merchan, E. -- Pietri, S. -- Schaffner, H. -- Tashenov, S. -- Wollersheim, H. J.] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany -- [de Angelis, G. -- Badoer, S. -- Berti, L. -- Calore, E. -- Cocconi, P. -- Conventi, D. -- Costa, L. -- Fantinel, S. -- Gadea, A. -- Gottardo, A. -- Gulmini, M. -- He, C. -- Ince, E. -- Kroell, Th. -- Lelli, F. -- Maron, G. -- Molini, P. -- Napoli, D. R. -- Rigato, M. -- Rosso, D. -- Sahin, E. -- Spolaore, P. -- Toniolo, N. -- Valiente-Dobon, J. J.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, IT-35020 Padua, Italy -- [Arnold, L. -- Baumann, R. -- Beck, F. A. -- El Chambit, M. -- Charles, L. -- Curien, D. -- Didierjean, F. -- Duchene, G. -- Faul, T. -- Filliger, M. -- Finck, Ch. -- Medina, P. -- Pachoud, E. -- Parisel, C. -- Piqueras, I. -- Richer, M. -- Robin, J. -- Santos, C. -- Sigward, M. -H. -- Weber, C.] Univ Strasbourg, IPHC, F-67037 Strasbourg, France -- [Arnold, L. -- Baumann, R. -- Beck, F. A. -- El Chambit, M. -- Charles, L. -- Curien, D. -- Didierjean, F. -- Duchene, G. -- Faul, T. -- Filliger, M. -- Finck, Ch. -- Medina, P. -- Pachoud, E. -- Parisel, C. -- Piqueras, I. -- Richer, M. -- Robin, J. -- Santos, C. -- Sigward, M. -H. -- Weber, C.] CNRS, UMR 7178, F-67037 Strasbourg, France -- [Astier, A. -- Cabaret, S. -- Desesquelles, P. -- Dosme, N. -- Gibelin, L. -- Ha, H. T. M. -- Hauschild, K. -- Karkour, N. -- Korichi, A. -- Lafay, X. -- Leboutelier, S. -- Legay, E. -- Lhenoret, S. -- Linget, D. -- Ljungvall, J. -- Lopez-Martens, A. -- Morbiducci, F. -- Ngo, V. L. -- Pariset, P. -- Perrier, S. -- Pierre, E. -- Roccaz, J. -- Travers, B.] Univ Paris 11, CNRS, IN2P3, CSNSM, F-91405 Orsay, France -- [Atac, A. -- Nyberg, J. -- Soderstrom, P. -A.] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden -- [Atac, A. -- Cederwall, B. -- Johnson, A. -- Khaplanov, A. -- van der Marel, J. -- Milechina, L. -- Tashenov, S.] Royal Inst Technol, SE-10691 Stockholm, Sweden -- [Aubert, Y. -- Azaiez, F. -- Le Blanc, F. -- Cercus, J. -L. -- Chambert, V. -- Commeaux, C. -- Delbourg, D. -- Diarra, C. -- Dorangeville, F. -- Edelbruck, P. -- Grave, X. -- Guevara, L. -- Harroch, H. -- Ky, B. Y. -- Lavergne, L. -- Lefebvre, F. -- Lermitage, A. -- Olariu, A. -- Oziol, C. -- Petrache, C. -- Pouthas, J. -- Salomon, F. -- Tanguy, S. -- Tun-Lanoe, K. M. M.] Univ Paris 11, CNRS, IN2P3, IPNO, F-91406 Orsay, France -- [Aufranc, C. -- Baulieu, G. -- Doan, Q. T. -- Pugnere, D. -- Redon, N. -- Rosse, B. -- Stezowski, O.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France -- [Austin, A. -- Burrows, I. -- Coleman-Smith, P. J. -- Griffiths, R. -- Kogimtzis, M. -- Labiche, M. -- Lazarus, I. H. -- Letts, S. C. -- Morrall, P. S. -- Palin, J. -- Pucknell, V. F. E. -- Simpson, J. -- Strachan, J.] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England -- [Aydin, S. -- Bazzacco, D. -- Bellato, M. -- Bortolato, D. -- Chavas, J. -- Colombo, A. -- Fanin, C. -- Farnea, E. -- Isocrate, R. -- Kroell, Th. -- Lenzi, S. M. -- Lunardi, S. -- Marginean, R. -- Menegazzo, R. -- Mengoni, D. -- Michelagnoli, C. -- Nespolo, M. -- Nicoletto, M. -- Peghin, R. -- Ramina, L. -- Rampazzo, G. -- Rebeschini, M. -- Recchia, F. -- Rossi Alvarez, C. -- Salvato, G. -- Triossi, A. -- Turcato, M. -- Ur, C. A. -- Venturelli, R. -- Veronese, F.] Ist Nazl Fis Nucl, Sez Padova, IT-35131 Padua, Italy -- [Balabanski, D. L. -- Detistov, P. -- Petkov, P. -- Stefanova, E.] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria -- [Bednarczyk, P. -- Czermak, A. -- Dulny, B. -- Grebosz, J. -- Maj, A. -- Meczynski, W. -- Sowicki, B. -- Zieblinski, M.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland -- [Bentley, M. A. -- Bloor, D. -- Joshi, P. -- Wadsworth, R.] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England -- [Benzoni, G. -- Blasi, N. -- Boiano, C. -- Bracco, A. -- Brambilla, S. -- Camera, F. -- Capsoni, A. -- Casati, G. -- Coelli, S. -- Corsi, A. -- Cortesi, A. -- Crespi, F. C. L. -- Geraci, A. -- Giaz, A. -- Leoni, S. -- Million, B. -- Montanari, D. -- Nicolini, R. -- Pellegri, L. -- Pignanelli, M. -- Pullia, A. -- Riboldi, S. -- Ripamonti, G. -- Tomasi, F. -- Vandone, V. -- Viscione, E. -- Wieland, O. -- Zocca, F.] Ist Nazl Fis Nucl, Sez Milano, IT-20133 Milan, Italy -- [Berthier, R. -- Bouty, A. -- Broussard, S. -- Buerger, A. -- Drouen, Y. -- Gros, P. -- Goergen, A. -- Hervieu, B. -- Karolak, M. -- Kebbiri, M. -- Korten, W. -- Ljungvall, J. -- Lotode, A. -- Mariette, Y. -- Le Noa, Y. -- Obertelli, A. -- Le Pouhalec, P. -- Salsac, M. -D. -- Theisen, Ch. -- Touzery, R. -- Veyssiere, Ch.] CEA, Ctr Saclay, IRFU, F-91191 Gif Sur Yvette, France -- [Beunard, R. -- Bourgault, P. -- Cahan, B. -- Clement, E. -- de France, G. -- Legeard, L. -- Ozille, M. -- Pancin, J. -- Raine, R. -- Ropert, J. -A. -- Saillant, F. -- Tripon, M. -- Wittwer, G.] CEA DSM CNRS IN2P3, GANIL, F-14076 Caen, France -- [Birkenbach, B. -- Bruyneel, B. -- Eberth, J. -- Hess, H. -- Jolie, J. -- Lersch, D. -- Pascovici, G. -- Reiter, P. -- Warr, N. -- Weisshaar, D. -- Wiens, A.] Univ Cologne, IKP, D-50937 Cologne, Germany -- [Bizzeti, P. G. -- Bizzeti-Sona, A. M. -- Giannatiempo, A. -- Melon, B. -- Perego, A. -- Sona, P.] Univ Florence, Dipartimento Fis & Astron, IT-50019 Florence, Italy -- [Bizzeti, P. G. -- Bizzeti-Sona, A. M. -- Giannatiempo, A. -- Melon, B. -- Nannini, A. -- Perego, A. -- Sona, P.] Ist Nazl Fis Nucl, Sez Firenze, IT-50019 Florence, Italy -- [Blasco, J. M. -- Carrio, F. -- Egea, J. -- Gonzalez, V. -- Sanchis, E.] Univ Valencia, Dept Elect Engn, E-46100 Burjassot, Valencia, Spain -- [Borsato, M. -- Bortolato, D. -- Lenzi, S. M. -- Lunardi, S. -- Marginean, R. -- Mengoni, D. -- Michelagnoli, C. -- Nespolo, M. -- Recchia, F. -- Salvato, G. -- Triossi, A. -- Venturelli, R.] Univ Padua, Dipartimento Fis, IT-35131 Padua, Italy -- [Bracco, A. -- Camera, F. -- Corsi, A. -- Crespi, F. C. L. -- Giaz, A. -- Leoni, S. -- Montanari, D. -- Nicolini, R. -- Pellegri, L. -- Pignanelli, M. -- Pullia, A. -- Riboldi, S. -- Vandone, V.] Univ Milan, Dipartimento Fis, IT-20133 Milan, Italy -- [Brawn, I. P.] STFC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England -- [Brondi, A. -- Moro, R. -- La Rana, G. -- Vardaci, E.] Univ Naples Federico II, Dipartimento Fis, IT-80126 Naples, Italy -- [Brondi, A. -- Moro, R. -- La Rana, G. -- Vardaci, E.] Ist Nazl Fis Nucl, Sez Napoli, IT-80126 Naples, Italy -- [Bucurescu, D. -- Marginean, N. -- Marginean, R. -- Petcu, M. -- Ur, C. A.] Natl Inst Phys & Nucl Engn, Bucharest, Romania -- [Buerger, A. -- Suliman, G. -- Zamfir, N. V.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany -- [Buerger, A.] Univ Oslo, Dept Phys, N-0316 Oslo, Norway -- [Casati, G. -- Geraci, A. -- Ripamonti, G.] Politecn Milan, Dipartimento Elettron & Informaz, IT-20133 Milan, Italy -- [Castoldi, M. -- Zucchiatti, A.] Ist Nazl Fis Nucl, Sez Genova, IT-16146 Genoa, Italy -- [Chapman, R. -- Mengoni, D. -- Orlandi, R. -- Smith, J. F.] Univ W Scotland, Sch Engn, Paisley PA1 2BE, Renfrew, Scotland -- [Cullen, D. M. -- Robinson, A. P.] Univ Manchester, Sch Phys & Astron, Schuster Lab, Manchester M13 9PL, Lancs, England -- [Depalo, R.] Univ Padua, Dipartimento Astron, IT-35131 Padua, Italy -- [Descombes, T. -- Simpson, G.] Univ Grenoble 1, CNRS, IN2P3, LPSC,INP Grenoble, F-38026 Grenoble, France -- [Doncel, M. -- Hernandez-Prieto, A. -- Quintana, B.] Univ Salamanca, Dept Fis Fundamental, E-37008 Salamanca, Spain -- [Erduran, M. N. -- Ince, E.] Istanbul Univ, Istanbul, Turkey -- [Erturk, S.] Nigde Univ, Fac Sci, Dept Phys, TR-51200 Nigde, Turkey -- [Gast, W. -- Lieder, R. M. -- Mihailescu, L.] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany -- [Gernhaeuser, R. -- Klupp, S. -- Kruecken, R. -- Schlarb, M.] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany -- [Jaworski, G.] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland -- [Jaworski, G. -- Mierzejewski, J. -- Palacz, M.] Univ Warsaw, Heavy Ion Lab, PL-02093 Warsaw, Poland -- [Jones, P.] Univ Jyvaskyla, Dept Phys, FI-40014 Jyvaskyla, Finland -- [Jonson, B.] Chalmers, S-41296 Gothenburg, Sweden -- [Jungclaus, A. -- Orlandi, R.] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain -- [Kempley, R. S. -- Podolyak, Z. -- Regan, P. H. -- Walker, P. M.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England -- [Mitev, K. -- Rainovski, G.] Sofia Univ St Kliment Ohridski, Fac Phys, Sofia, Bulgaria -- [Ozben, C.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey -- [Rudolph, D.] Lund Univ, Dept Phys, SE-22100 Lund, Sweden, Research Group: Information Management, CSNSM SNO, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), 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)-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)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Institut de Physique Nucléaire d'Orsay (IPNO), informatique, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-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 Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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), 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, CSNSM MECA, 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)-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), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), CSNSM INFOR, CSNSM ELEC, Matière Nucléaire, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), AGATA, Akkoyun, S., Algora, A., Alikhani, B., Ameil, F., De Angelis, G, Arnold, L., Astier, A., Ataç, A., Aubert, Y., Aufranc, C., Austin, A., Aydin, S., Azaiez, F., Badoer, S., Balabanski, D. L., Barrientos, D., Baulieu G., L, Baumann, R., Bazzacco, D., Beck, F. A., Beck, T., Bednarczyk, P., Bellato, M., Bentley, M. A., Benzoni, G., Berthier, R., Berti, L., Beunard, R., Lo Bianco, G., Birkenbach, B., Bizzeti, P. G., Bizzeti Sona, A. M., Le Blanc, F., Blasco, J. M., Blasi, N., Bloor, D., Boiano, C., Borsato, M., Bortolato, D., Boston, A. J., Boston, H. C., Bourgault, P., Boutachkov, P., Bouty, A., Bracco, A., Brambilla, S., Brawn, I. P., Brondi, Augusto, Broussard, S., Bruyneel, B., Bucurescu, D., Burrows, I., Bürger, A., Cabaret, S., Cahan, B., Calore, E., Camera, F., Capsoni, A., Carrió, F., Casati, G., Castoldi, M., Cederwall, B., Cercus J., L, Chambert, V., El Chambit, M., Chapman, R., Charles, L., Chavas, J., Clément, E., Cocconi, P., Coelli, S., Coleman Smith, P. J., Colombo, A., Colosimo, S., Commeaux, C., Conventi, D., Cooper, R. J., Corsi, A., Cortesi, A., Costa, L., Crespi, F. C. L., Cresswell, J. R., Cullen, D. M., Curien, D., Czermak, A., Delbourg, D., Depalo, R., Descombes, T., Désesquelles, P., Detistov, P., Diarra, C., Didierjean, F., Dimmock, M. R., Doan, Q. T., Domingo Pardo, C., Doncel, M., Dorangeville, F., Dosme, N., Drouen, Y., Duchêne, G., Dulny, B., Eberth, J., Edelbruck, P., Egea, J., Engert, T., Erduran, M. N., Ertürk, S., Fanin, C., Fantinel, S., Farnea, E., Faul, T., Filliger, M., Filmer, F., Finck, C., De France, G., Gadea, A., Gast, W., Geraci, A., Gerl, J., Gernhäuser, R., Giannatiempo, A., Giaz, A., Gibelin, L., Givechev, A., Goel, N., González, V., Gottardo, A., Grave, X., Grȩbosz, J., Griffiths, R., Grint, A. N., Gros, P., Guevara, L., Gulmini, M., Görgen, A., Ha, H. T. M., Habermann, T., Harkness, L. J., Harroch, H., Hauschild, K., He, C., Hernández Prieto, A., Hervieu, B., Hess, H., Hüyük, T., Ince, E., Isocrate, R., Jaworski, G., Johnson, A., Jolie, J., Jones, P., Jonson, B., Joshi, P., Judson, D. S., Jungclaus, A., Kaci, M., Karkour, N., Karolak, M., Kaşkaş, A., Kebbiri, M., Kempley, R. S., Khaplanov, A., Klupp, S., Kogimtzis, M., Kojouharov, I., Korichi, A., Korten, W., Kröll, T., Krücken, R., Kurz, N., Ky, B. Y., Labiche, M., Lafay, X., Lavergne, L., Lazarus, I. H., Leboutelier, S., Lefebvre, F., Legay, E., Legeard, L., Lelli, F., Lenzi, S. M., Leoni, S., Lermitage, A., Lersch, D., Leske, J., Letts, S. C., Lhenoret, S., Lieder, R. M., Linget, D., Ljungvall, J., Lopez Martens, A., Lotodé, A., Lunardi, S., Maj, A., Van Der Marel, J., Mariette, Y., Marginean, N., Marginean, R., Maron, G., Mather, A. R., Mȩczyński, W., Mendéz, V., Medina, P., Melon, B., Menegazzo, R., Mengoni, D., Merchan, E., Mihailescu, L., Michelagnoli, C., Mierzejewski, J., Milechina, L., Million, B., Mitev, K., Molini, P., Montanari, D., Moon, S., Morbiducci, F., Moro, RENATA EMILIA MARIA, Morrall, P. S., Möller, O., Nannini, A, Napoli, D. R., Nelson, L., Nespolo, M., Ngo, V. L., Nicoletto, M., Nicolini, R., Le Noa, Y., Nolan, P. J., Norman, M., Nyberg, J., Obertelli, A., Olariu, A., Orlandi, R., Oxley, D. C., Özben, C., Ozille, M., Oziol, C., Pachoud, E., Palacz, M., Palin, J., Pancin, J., Parisel, C., Pariset, P., Pascovici, G., Peghin, R., Pellegri, L., Perego, A., Perrier, S., Petcu, M., Petkov, P., Petrache, C., Pierre, E., Pietralla, N., Pietri, S., Pignanelli, M., Piqueras, I., Podolyak, Z., Le Pouhalec, P., Pouthas, J., Pugnére D., L, Pucknell, V. F. E., Pullia, A., Quintana, B., Raine, R., Rainovski, G., Ramina, L., Rampazzo, G., LA RANA, Giovanni, Rebeschini, M., Recchia, F., Redon N., L, Reese M., C, Reiter, P., Regan, P. H., Riboldi, S., Richer, M., Rigato, M., Rigby, S., Ripamonti, G., Robinson, A., Robin, J., Roccaz, J., Ropert, J. A., Rossé, B. l., Rossi Alvarez, C., Rosso, D., Rubio, B., Rudolph, D., Saillant, F., Şahin, E., Salomon, F., Salsac, M. D., Salt, J., Salvato, G., Sampson, J., Sanchis, E., Santos, C., Schaffner, H., Schlarb, M., Scraggs, D. P., Seddon, D., Şenyiǧit, M., Sigward, M. H., Simpson, G., Simpson, J., Slee, M., Smith, J. F., Sona, P., Sowicki, B., Spolaore, P., Stahl, C., Stanios, T., Stefanova, E., Stézowski, O., Strachan, J., Suliman, G., Söderström, P. A., Tain, J. L., Tanguy, S., Tashenov, S., Theisen, C. h., Thornhill, J., Tomasi, F., Toniolo, N., Touzery, R., Travers, B., Triossi, A., Tripon, M., Tun Lanoë, K. M. M., Turcato, M., Unsworth, C., Ur, C. A., Valiente Dobon, J. J., Vandone, V., Vardaci, Emanuele, Venturelli, R., Veronese, F., Veyssiere, C., Viscione, E., Wadsworth, R., Walker, P. M., Warr, N., Weber, C., Weisshaar, D., Wells, D., Wieland, O., Wiens A., U, Wittwer, G., Wollersheim, H. J., Zocca, F., Zamfir, N. V., Ziȩbliński, M., Zucchiatti, A., 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)-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)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-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 National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-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), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), and 0-Belirlenecek
Subjects: Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Pulse-shape and gamma-ray tracking algorithms, FOS: Physical sciences, Semiconductor detector performance and simulations, Integrated circuit, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Tracking (particle physics), gamma-Ray tracking, 01 natural sciences, Pulse-shape and γ-ray tracking algorithms, law.invention, Data acquisition, law, 0103 physical sciences, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), 010306 general physics, γ-Ray spectroscopy, Nuclear Experiment, Instrumentation, Digital signal processing, Event reconstruction, gamma-Ray spectroscopy, Physics, sezele, Spectrometer, Spectrometers, 010308 nuclear & particles physics, business.industry, Detector, AGATA, Digital signals, HPGe detectors, Pulse-shape, Ray tracking, HPGe detectors, Algorithms, Crystals, Germanium, Semiconductor detectors, Signal processing, Spectrometry, Tracking (position), γ-Ray tracking, Instrumentation and Detectors (physics.ins-det), AGATA, Física nuclear, business, Computer hardware
Abstract: WOS: 000300864200005, The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate the next generation gamma-ray spectrometer. AGATA is based on the technique of gamma-ray energy tracking in electrically segmented high-purity germanium crystals. This technique requires the accurate determination of the energy, time and position of every interaction as a gamma ray deposits its energy within the detector volume. Reconstruction of the full interaction path results in a detector with very high efficiency and excellent spectral response. The realisation of gamma-ray tracking and AGATA is a result of many technical advances. These include the development of encapsulated highly segmented germanium detectors assembled in a triple cluster detector cryostat, an electronics system with fast digital sampling and a data acquisition system to process the data at a high rate. The full characterisation of the crystals was measured and compared with detector-response simulations. This enabled pulse-shape analysis algorithms, to extract energy, time and position, to be employed. In addition, tracking algorithms for event reconstruction were developed. The first phase of AGATA is now complete and operational in its first physics campaign. In the future AGATA will be moved between laboratories in Europe and operated in a series of campaigns to take advantage of the different beams and facilities available to maximise its science output. The paper reviews all the achievements made in the AGATA project including all the necessary infrastructure to operate and support the spectrometer. (C) 2011 Elsevier B.V. All rights reserved., EU [RII3-CT-2004-506065]; German BMBF [06K-167, 06KY2051]; Swedish Research Council; Knut and Alice Wallenberg Foundation; UK EPSRC Engineering and Physical Sciences Research Council; UK STFC Science and Technology Facilities Council; AWE plc; Scientific and Technological Research Council of Turkey [106T055]; Ankara University [05B4240002]; Polish Ministry of Science and Higher Education [DPN/N190/AGATA/2009]; Spanish MICINN [FPA2008-06419, FPA2009-13377-C02-02]; Spanish Consolider-Ingenio Programme CPAN [CSD2007-00042]; Generalitat Valenciana [PROMETEO/2010/101]; MICINN, Spain; INFN, Italy [AIC10-D-000568]; Science and Technology Facilities Council [ST/F012039/1, ST/J000094/1, ST/F004192/1, ST/J000159/1, ST/I504940/1, NuSTAR, ST/F006950/1, ST/I504916/1, ST/G000670/1, ST/F004060/1, ST/J000051/1, ST/J000108/1, ST/G000670/1 NuSTAR, ST/I504959/1, ST/G000727/1, ST/F004052/1, ST/F004184/1], AGATA and this work is supported by the European funding bodies and the EU Contract RII3-CT-2004-506065, the German BMBF under Grants 06K-167 and 06KY2051, the Swedish Research Council and the Knut and Alice Wallenberg Foundation, UK EPSRC Engineering and Physical Sciences Research Council, UK STFC Science and Technology Facilities Council, AWE plc, Scientific and Technological Research Council of Turkey (Proj. nr. 106T055) and Ankara University (BAP Proj. nr. 05B4240002), the Polish Ministry of Science and Higher Education under Grant DPN/N190/AGATA/2009, the Spanish MICINN under grants FPA2008-06419 and FPA2009-13377-C02-02, the Spanish Consolider-Ingenio 2010 Programme CPAN (contract number CSD2007-00042) the Generalitat Valenciana under Grant PROMETEO/2010/101, and research performed in the frame of the GSI-IN2P3 collaboration agreement number 02-42. A. Gadea and E. Farnea acknowledge the support of MICINN, Spain, and INFN, Italy, through the AIC10-D-000568 bilateral action.
Published: 2012

23. Transition probabilities in 31P and 31S : A test for isospin symmetry

Author: E. Sahin, S. Iliev, S. M. Lenzi, Dimitar Tonev, S. Lunardi, H.-F. Wirth, M. S. Yavahchova, N. Marginean, P. Pavlov, H. Laftchiev, R. Menegazzo, C. A. Ur, E. Farnea, R. P. Singh, G. de Angelis, F. Recchia, E. Geleva, A. Gadea, P. G. Bizzeti, C. Y. He, I.L. Pantaleev, D. R. Napoli, I. Deloncle, M. Stoyanova, Heikki Penttilä, G. De Gregorio, F. Nowacki, D.T. Dimitrov, N. Goutev, A. Demerdjiev, R. Orlandi, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), 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), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Tonev, D., de Angelis, G., Deloncle, I., Goutev, N., De Gregorio, G., Pavlov, P., Pantaleev, I. L., Iliev, S., Yavahchova, M. S., Bizzeti, P. G., Demerdjiev, A., Dimitrov, D. T., Farnea, E., Gadea, A., Geleva, E., He, C. Y., Laftchiev, H., Lenzi, S. M., Lunardi, S., Marginean, N., Menegazzo, R., Napoli, D. R., Nowacki, F., Orlandi, R., Penttila, H., Recchia, F., Sahin, E., Singh, R. P., Stoyanova, M., Ur, C. A., and Wirth, H. -F.
Subjects: Nuclear and High Energy Physics, Lifetime measurement, Isoscalar, QC1-999, Lifetime measurements, lifetime measurements, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Resonance (particle physics), Isospin symmetry, transition probabilities, Nuclear physics, Microscopic multiphonon model, Mirror nuclei, mirror nuclei, 0103 physical sciences, Transition probabilities, 010306 general physics, mirror, Physics, Isovector, 010308 nuclear & particles physics, 31S, Charge (physics), 31P, Symmetry (physics), Charged particle, isospin symmetry, Isospin, microscopic multiphonon model, nuclei, ydinfysiikka
Abstract: International audience; Excited states in the mirror nuclei 31P and 31S were populated in the 1p and 1n exit channels of the reaction 20Ne + 12C, at a beam energy of 33 MeV. The 20Ne beam was delivered for the first time by the Piave-Alpi accelerator of the Laboratori Nazionali di Legnaro. Angular correlations of coincident γ-rays and Doppler-shift attenuation lifetime measurements were performed using the multi-detector array GASP in conjunction with the EUCLIDES charged particle detector. In the observed B(E1) strengths, the isoscalar component, amounting to 24% of the isovector one, provides strong evidence for breaking of the isospin symmetry in the A=31 mass region. Self-consistent beyond mean field calculations using Equation of Motion method based on a chiral potential and including two- and three-body forces reproduce well the experimental B(E1) strengths, reinforcing our conclusion. Coherent mixing from higher-lying states involving the Giant Isovector Monopole Resonance accounts well for the effect observed. The breaking of the isospin symmetry originates from the violation of the charge symmetry of the two- and three-body parts of the potential, only related to the Coulomb interaction.
Published: 2021

24. Recent experiments in inverse kinematics with the magnetic spectrometer PRISMA

Author: Fioretto E., Corradi L., Montanari D., Szilner S., Pollarolo G., Galtarossa F., Ackermann D., Montagnoli G., Scarlassara F., Stefanini A.M., Courtin S., Goasduff A., Haas F., Jelavić-Malenica D., Michelagnoli C., Mijatović T., Soić N., Ur C., and Valiente-Dobon J.J.
Subjects: Physics, QC1-999
Abstract: In the last period, two classes of experiments have been carried out with the large acceptance magnetic spectrometer PRISMA. In particular, the one- and two-neutron transfer processes at energies ranging from the Coulomb barrier to deep below it and the population of exotic neutron rich nuclei in the A~130 and A~200 mass regions have been studied. Both kinds of experiments have been performed in inverse kinematics identifying in A, Z and velocity the light target-like recoils with PRISMA placed at very forward angles in order to have, at the same time, high efficiency and good energy and mass resolutions.
Published: 2016
Full Text: View/download PDF

25. Spin distribution measurement for 64Ni + 100Mo at near and above barrier energies

Author: Singh Varinderjit, Ackermann D., Antalic S., Axiotis M., Bazzacco D., Corradi L., De Angelis G., Farnea E., Gadea A., Heßberger F.P., Itkis M.G., Kniajeva G.N., Kozulin E.M., Martinez T., Marginean N., Menegazzo R., Montagnoli G., Napoli D.R., Oganessian Yu. Ts., Ruan M., Sagaidak R.N., Scarlassara F., Stefanini A.M., Szilner S., and Ur C.
Subjects: Physics, QC1-999
Abstract: Spin distribution measurements were performed for the reaction 64Ni + 100Mo at three beam energies ranging from 230 to 260 MeV. Compound nucleus (CN) spin distributions were obtained channel selective for each evaporation residue populated by the de-excitation cascade. A comparison of the spin distribution at different beam energies indicates that its slope becomes steeper and steeper with increasing beam energy. This change in slope of the spin distribution is mainly due to the onset of fission competition with particle evaporation at higher beam energies.
Published: 2015
Full Text: View/download PDF

26. Isospin mixing at finite temperature in 80Zr

Author: Ceruti Simone, Giaz A., Camera F., Avigo R., Benzoni G., Blasi N., Bracco A., Brambilla S., Coelli S., Corsi A., Crespi F., Leoni S., Million B., Morales-Lopez A.I., Pellegri L., Nicolini R., Riboldi S., Vandone V., Wieland O., Bortolato D., Fanin C., Gottardo A., Valiente-Dobon J.J., Bellato M., Bazzacco D., Mengoni D., Michelagnoli C., Montanari D., Recchia F., Farnea E., Ur C., Zieblinski M., Ciemala M., Kmiecik M., Maj A., Myalski S., and Styczen J.
Subjects: Physics, QC1-999
Abstract: Isospin mixing induced by the Coulomb interaction has been studied in the compound nucleus 80Zr at T~2 MeV produced in the fusion-evaporation reaction 40Ca+40Ca at Ebeam = 136 MeV. The isospin impurity was measured using the first step of the Giant Dipole Resonance γ decay. The preliminary value of the Coulomb spreading width has been extracted via statistical model analysis of the measured γ spectrum.
Published: 2014
Full Text: View/download PDF

27. Study of the γ decay of high-lying states in 208Pb via inelastic scattering of 17O ions

Author: Crespi F.C.L., Kmiecik M., Bracco A., Leoni S., Maj A., Benzoni G., Blasi N., Boiano C., Bottoni S., Brambilla S., Camera F., Ceruti S., Giaz A., Million B., Morales A.I., Nicolini R., Pellegri L., Riboldi S., Vandone V., Wieland O., Bednarczyk P., Ciemala M., Grebosz J., Krzysiek M., Mazurek K., Zieblinski M., Bazzacco D., Bellato M., Birkenbach B., Bortolato D., Calore E., Angelis G. De, Farnea E., Gadea A., Görgen A., Gottardo A., Isocrate R., Lenzi S., Lunardi S., Mengoni D., Michelagnoli C., Molini P., Napoli D.R., Recchia F., Sahin E., Siebeck B., Siem S., Ur C., and Dobon J.J. Valiente
Subjects: Physics, QC1-999
Abstract: A measurement of the high-lying states in 208Pb has been made using 17O beams at 20 MeV/u. The gamma decay following inelastic excitation was measured with the detector system AGATA Demonstrator based on segmented HPGe detectors, coupled to an array of large volume LaBr3:Ce scintillators and to an array of Si detectors. Preliminary results in comparison with (γ,γ’) data, for states in the 5-8 MeV energy interval, are presented.
Published: 2014
Full Text: View/download PDF

28. Nuclear structure far from stability at the N=50 shell closure

Author: E. Sahin, G. de Angelis, A. Gadea, G. Duchene, T. Faul, D. R. Napoli, E. Farnea, J. J. Valiente-Dobón, R. Orlandi, D. Mengoni, F. Della Vedova, R. P. Singh, C. Ur, F. Recchia, M. N. Erduran, M. Bostan, S. Erturk, S. Aydin, K. T. Wiedemann, A. M. Stefanini, S. Lenzi, S. Lunardi, N. Marginean, L. Corradi, E. Fioretto, G. Montagnoli, F. Scarlassara, P. Mason, S. Szilner, D. Ackermann, G. Pollarolo, J. R. B. Oliveira, T. Byrski, D. Curien, B. Gall, F. Haas, O. Dorwaux, J. Robin, M. Nespolo, F. Azaiez, G. De France, A. Algora, X. Liang, F. Nowacki, Y. H. Zhang, X. H. Zhou, P. Demetriou, R. Julin, S. V. Harissopulos, Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), 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), 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), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), 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), Sahin, E., Department of Physics, Istanbul University, Istanbul, 34134, Turkey, INFN, Laboratori Nazionali di Legnaro, Italy -- De Angelis, G., INFN, Laboratori Nazionali di Legnaro, Italy -- Gadea, A., INFN, Laboratori Nazionali di Legnaro, Italy -- Duchene, G., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Faul, T., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Napoli, D.R., INFN, Laboratori Nazionali di Legnaro, Italy -- Farnea, E., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Valiente-Dobón, J.J., INFN, Laboratori Nazionali di Legnaro, Italy -- Orlandi, R., INFN, Laboratori Nazionali di Legnaro, Italy -- Mengoni, D., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Vedova, F.D., INFN, Laboratori Nazionali di Legnaro, Italy -- Singh, R.P., Inter-University Accelerator Center, New Delhi-67, India -- Ur, C., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Recchia, F., INFN, Laboratori Nazionali di Legnaro, Italy -- Erduran, M.N., Department of Physics, Istanbul University, Istanbul, 34134, Turkey -- Bostan, M., Department of Physics, Istanbul University, Istanbul, 34134, Turkey -- Erturk, S., Department of Physics, Nigde University, Nigde, Turkey -- Aydin, S., Department of Physics, Cukurova University, Adana, Turkey -- Wiedemann, K.T., University of São Paulo, Sãu Paulo, Brazil -- Stefanini, A.M., INFN, Laboratori Nazionali di Legnaro, Italy -- Lenzi, S., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Lunardi, S., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Marginean, N., INFN, Laboratori Nazionali di Legnaro, Italy -- Corradi, L., INFN, Laboratori Nazionali di Legnaro, Italy -- Fioretto, E., INFN, Laboratori Nazionali di Legnaro, Italy -- Montagnoli, G., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Scarlassara, F., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Mason, P., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Szilner, S., Ruder Boskovic Institute, Zagreb Crotia, HR-1002, Croatia -- Ackermann, D., Kernphysik II, Gesellschaft für Schwerionenforschung MbH A GSI, Planckstr.1, Darmstadt, D-64291, Germany -- Pollarolo, G., Dipartimento di Fisica Teorica, Universitá di Torino and INFN, Sezione di Torino, Italy -- Oliveira, J.R.B., University of São Paulo, Sãu Paulo, Brazil -- Byrski, T., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Curien, D., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Gall, B., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Haas, F., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Dorwaux, O., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Robin, J., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Nespolo, M., Dipartimento di Fisica, Universitá di Padova and INFN, Sezione di Padova, Padova, Italy -- Azaiez, F., IPNO, IN2P3/CNRS et Universit Paris-Sud, Orsay, F-91406, France -- De France, G., GANIL Caen 2c013, France -- Algora, A., Institute of Nuclear Research, Debrecen, Pf. 51, H-4001, Hungary -- Liang, X., Electronic Engineering and Physics, University of Paisley, Paisley, PA1 2BE, United Kingdom -- Nowacki, F., IPHC, IN2P3/CNRS et Univesitè Louis Pasteur, BP 28, Strasburg-Cedex-2, F-67037, France -- Zhang, Y.H., Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China -- Zhou, X.H., Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China, Demetriou, P., Julin, R., Harissopulos, S.V., Çukurova Üniversitesi, Demetriuo, P, Harissopulos, SV, Napoli, Daniel Ricardo -- 0000-0002-8154-6958, Algora, Alejandro -- 0000-0002-5199-1794, Gadea, Andres -- 0000-0002-4233-1970, Oliveira, Jose Roberto -- 0000-0003-1362-7382, de France, Gilles -- 0000-0002-7439-1759, Montagnoli, Giovanna -- 0000-0002-8944-1456, Ackermann, Dieter -- 0000-0001-6284-1516, Sahin, Eda -- 0000-0003-0683-5140, [Sahin, E. -- Erduran, M. N. -- Bostan, M.] Istanbul Univ, Dept Phys, TR-34134 Istanbul, Turkey -- [Sahin, E. -- de Angelis, G. -- Gadea, A. -- Napoli, D. R. -- Valiente-Dobon, J. J. -- Orlandi, R. -- Della Vedova, F. -- Recchia, F. -- Stefanini, A. M. -- Marginean, N. -- Corradi, L. -- Fioretto, E.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, Legnaro, Italy -- [Duchene, G. -- Faul, T. -- Byrski, T. -- Curien, D. -- Gall, B. -- Haas, F. -- Dorwaux, O. -- Robin, J. -- Nowacki, F.] Univ Louis Pasteur, IPHC, IN2P3, CNRS, F-67037 Strasbourg 2, France -- [Farnea, E. -- Mengoni, D. -- Ur, C. -- Lenzi, S. -- Lunardi, S. -- Montagnoli, G. -- Scarlassara, E. -- Mason, P. -- Nespolo, M.] Univ Padua, Dipartimento Fis, Padua, Italy -- [Farnea, E. -- Mengoni, D. -- Ur, C. -- Lenzi, S. -- Lunardi, S. -- Montagnoli, G. -- Scarlassara, E. -- Mason, P. -- Nespolo, M.] Ist Nazl Fis Nucl, Sezione Padova, Padua, Italy -- [Singh, R. P.] Inter Univ Accelerator Ctr, New Delhi 67, India -- [Erturk, S.] Nigde Univ, Dept Phys, Nigde, Turkey -- [Aydin, S.] Cukurova Univ, Dept Phys, Adana, Turkey -- [Wiedemann, K. T. -- Oliveira, J. R. B.] Univ Sao Paulo, Sao Paulo, Brazil -- [Szilner, S.] Rudjer Boskovic Inst, Zagreb 1002, Croatia -- [Ackermann, D.] GSI Helmholtzzentrum Schwerionenforsch mbH, Kernphys 2, D-64291 Darmstadt, Germany -- [Pollarolo, G.] Univ Turin, Dipartmento Fis Teor, Turin, Italy -- [Pollarolo, G.] Ist Nazl Fis Nucl, Sezione Torino, Turin, Italy -- [Azaiez, E.] Univ Paris 11, IPNO, IN2P3, CNRS, F-91406 Orsay, France -- [De France, G.] GANIL, F-2013 Caen, France -- [Algora, A.] Inst Nucl Res, H-4001 Debrecen, Hungary -- [Liang, X.] Univ Paisley, Elect Engn & Phys, Paisley PA1 2BE, Renfrew, Scotland -- [Zhang, Y. H. -- Zhou, X. H.] Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China, and 0-Belirlenecek
Subjects: Spin states, neutron-rich, multi-nucleon transfer, Nuclear Theory, Shell (structure), Closure (topology), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Nuclear physics, single-particle state, 0103 physical sciences, 010306 general physics, deep inelastic, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Nuclear structure, Nuclear shell model, Gamma ray, shell model, isotones N=50, muliti-nucleon transfer, shell closure, Deep inelastic scattering, 0-Belirlenecek, Excited state, Atomic physics
Abstract: Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions -- SEP 10-14, 2007 -- Crete, GREECE, WOS: 000256223700023, Medium and high spin states of the nuclei close to the N=50 shell closure are investigated Using deep inelastic and multi-nucleon transfer reactions. New excited states of the nuclei Ga-81, Ge-82 and As-83 at N=50 shell closure have been identified by means of the Se-82+U-238 reaction. Gamma rays have been acquired using the PRISMA-CLARA setup of the Laboratori Nazionali di Legnaro, Italy (LNL)., NCSR, Univ Jyvaskyla, Natl Tech Univ Athens, Greek Minist Educ, U.S. Department of Energy [DE-AC05-00OR22725], I wish to thank the staff of HRIBF for their dedication in the production of RIBs. This talk is based on work done in collaboration with various individuals: C. Baktash, J. Batchelder, J.R. Beene, B. Fuentes, J. Gomez del Campo, C.J. Gross, M.L. Halbert, P.A. Hausladen, Y. Larochelle, J. F.Liang, P.E. Mueller, E. Padilla-Rodal, D.C. Radford, D. Shapira, D.W. Stracener, J. P. Urrego, R.L. Varner and C.-H. Yu. Oak Ridge National Laboratory is managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725.

29. Pulse shape discrimination for GERDA Phase I data

Author: S. Hemmer, V. Wagner, A. A. Vasenko, N. Becerici-Schmidt, J. Schreiner, V. I. Lebedev, Thomas Kihm, H. Strecker, Manfred Lindner, L. V. Inzhechik, T. Wester, A.A. Smolnikov, Alessandro Bettini, M. Barnabe Heider, C. Cattadori, Kai Zuber, Allen Caldwell, V. I. Gurentsov, A. Kirsch, M. Heisel, A. A. Machado, D. Budjáš, E. Bellotti, V. Brudanin, Stefan Schönert, K. K. Guthikonda, Xianpeng Liu, Oliver Schulz, K. von Sturm, A. Domula, L. B. Bezrukov, H. Simgen, E. Shevchik, Alberto Pullia, Bayarto Lubsandorzhiev, Christian Bauer, I. R. Barabanov, K. Freund, A. Garfagnini, M. Junker, L. Ioannucci, Marcin Wójcik, S. V. Zhukov, G. Pessina, P. Grabmayr, V. Egorov, M. Allardt, R. Brugnera, A. Lubashevskiy, Luca Stanco, D. R. Zinatulina, Marc Walter, N. Frodyma, V. V. Kuzminov, J. Janicskó Csáthy, Matteo Agostini, Werner Hofmann, Cinzia Sada, Giovanni Benato, Claudio Gotti, M. Balata, C. Macolino, Mikael Hult, T. Bode, A. D. Ferella, B. Schwingenheuer, I. Zhitnikov, G. Heusser, K. T. Knöpfle, A. Hegai, G. Zuzel, O.I. Kochetov, W. Hampel, S. T. Belyaev, A. M. Gangapshev, E. V. Demidova, S. Belogurov, A. Wegmann, Igor Nemchenok, Bela Majorovits, M. Salathe, S. Nisi, Luciano Pandola, I. V. Kirpichnikov, A. A. Klimenko, N. Rumyantseva, B. Lehnert, O. Volynets, Ivano Lippi, K. N. Gusev, W. Maneschg, E. A. Yanovich, Stefano Riboldi, V. N. Kornoukhov, K. Pelczar, E. Andreotti, M. Misiaszek, M. Shirchenko, Laura Baudis, C. A. Ur, N. Barros, H. Y. Liao, Guillaume Lutter, A. Chernogorov, A. M. Bakalyarov, J. Jochum, F. Cossavella, M. Tarka, R. Falkenstein, C. Schmitt, C.M. O'Shaughnessy, A. Lazzaro, Matthias Laubenstein, P. Zavarise, Agostini, M, Allardt, M, Andreotti, E, Bakalyarov, A, Balata, M, Barabanov, I, Barnabé Heider, M, Barros, N, Baudis, L, Bauer, C, Becerici Schmidt, N, Bellotti, E, Belogurov, S, Belyaev, S, Benato, G, Bettini, A, Bezrukov, L, Bode, T, Brudanin, V, Brugnera, R, Budjáš, D, Caldwell, A, Cattadori, C, Chernogorov, A, Cossavella, F, Demidova, E, Domula, A, Egorov, V, Falkenstein, R, Ferella, A, Freund, K, Frodyma, N, Gangapshev, A, Garfagnini, A, Gotti, C, Grabmayr, P, Gurentsov, V, Gusev, K, Guthikonda, K, Hampel, W, Hegai, A, Heisel, M, Hemmer, S, Heusser, G, Hofmann, W, Hult, M, Inzhechik, L, Ioannucci, L, Janicskó Csáthy, J, Jochum, J, Junker, M, Kihm, T, Kirpichnikov, I, Kirsch, A, Klimenko, A, Knöpfle, K, Kochetov, O, Kornoukhov, V, Kuzminov, V, Laubenstein, M, Lazzaro, A, Lebedev, V, Lehnert, B, Liao, H, Lindner, M, Lippi, I, Liu, X, Lubashevskiy, A, Lubsandorzhiev, B, Lutter, G, Macolino, C, Machado, A, Majorovits, B, Maneschg, W, Misiaszek, M, Nemchenok, I, Nisi, S, O'Shaughnessy, C, Pandola, L, Pelczar, K, Pessina, G, Pullia, A, Riboldi, S, Rumyantseva, N, Sada, C, Salathe, M, Schmitt, C, Schreiner, J, Schulz, O, Schwingenheuer, B, Schönert, S, Shevchik, E, Shirchenko, M, Simgen, H, Smolnikov, A, Stanco, L, Strecker, H, Tarka, M, Ur, C, Vasenko, A, Volynets, O, von Sturm, K, Wagner, V, Walter, M, Wegmann, A, Wester, T, Wojcik, M, Yanovich, E, Zavarise, P, Zhitnikov, I, Zhukov, S, Zinatulina, D, Zuber, K, and Zuzel, G
Subjects: Physics, Particle physics, Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Detector, Phase (waves), chemistry.chemical_element, FOS: Physical sciences, Germanium, Compton edge, Instrumentation and Detectors (physics.ins-det), Type (model theory), Shape parameter, chemistry, Beta (velocity), Sensitivity (control systems), Nuclear Experiment (nucl-ex), Engineering (miscellaneous), Nuclear Experiment
Abstract: The GERDA experiment located at the LNGS searches for neutrinoless double beta (0\nu\beta\beta) decay of ^{76}Ge using germanium diodes as source and detector. In Phase I of the experiment eight semi-coaxial and five BEGe type detectors have been deployed. The latter type is used in this field of research for the first time. All detectors are made from material with enriched ^{76}Ge fraction. The experimental sensitivity can be improved by analyzing the pulse shape of the detector signals with the aim to reject background events. This paper documents the algorithms developed before the data of Phase I were unblinded. The double escape peak (DEP) and Compton edge events of 2.615 MeV \gamma\ rays from ^{208}Tl decays as well as 2\nu\beta\beta\ decays of ^{76}Ge are used as proxies for 0\nu\beta\beta\ decay. For BEGe detectors the chosen selection is based on a single pulse shape parameter. It accepts 0.92$\pm$0.02 of signal-like events while about 80% of the background events at Q_{\beta\beta}=2039 keV are rejected. For semi-coaxial detectors three analyses are developed. The one based on an artificial neural network is used for the search of 0\nu\beta\beta\ decay. It retains 90% of DEP events and rejects about half of the events around Q_{\beta\beta}. The 2\nu\beta\beta\ events have an efficiency of 0.85\pm0.02 and the one for 0\nu\beta\beta\ decays is estimated to be 0.90^{+0.05}_{-0.09}. A second analysis uses a likelihood approach trained on Compton edge events. The third approach uses two pulse shape parameters. The latter two methods confirm the classification of the neural network since about 90% of the data events rejected by the neural network are also removed by both of them. In general, the selection efficiency extracted from DEP events agrees well with those determined from Compton edge events or from 2\nu\beta\beta\ decays., Comment: 18 pages, 27 figures
Published: 2013

30. Response of AGATA segmented HPGe detectors to gamma rays up to 15.1MeV

Author: S. Brambilla, D. R. Napoli, A. Gadea, F. Coniglio, D. Mengoni, Luna Pellegri, Enrico Calore, E. Sahin, S. Bottoni, M. Bellato, M. Kmiecik, C. A. Ur, Stefano Riboldi, D. Bazzacco, A. Corsi, N. Blasi, P. A. Söderström, D. Montanari, P. Casati, Damiano Bortolato, J. J. Valiente Dobon, V. Vandone, F. C. L. Crespi, F. Camera, R. Nicolini, B. Million, A. Maj, M. Ciemala, C. Michelagnoli, R. Avigo, Agnese Giaz, G. Benzoni, A. Bracco, Oliver Wieland, F. Recchia, E. Farnea, A. Atac, S. Leoni, Johan Nyberg, A. Gottardo, Serkan Akkoyun, [Crespi, F. C. L. -- Avigo, R. -- Camera, F. -- Bottoni, S. -- Bracco, A. -- Ceruti, S. -- Giaz, A. -- Leoni, S. -- Nicolini, R. -- Pellegri, L. -- Riboldi, S. -- Vandone, V.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy -- [Crespi, F. C. L. -- Avigo, R. -- Camera, F. -- Benzoni, G. -- Blasi, N. -- Bottoni, S. -- Bracco, A. -- Brambilla, S. -- Ceruti, S. -- Coelli, S. -- Giaz, A. -- Leoni, S. -- Million, B. -- Nicolini, R. -- Pellegri, L. -- Riboldi, S. -- Vandone, V. -- Wieland, O.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy -- [Akkoyun, S.] Cumhuriyet Univ, Dept Phys, Fac Sci, TR-58140 Sivas, Turkey -- [Atac, A.] Ankara Univ, Dept Phys, Fac Sci, TR-06100 Ankara, Turkey -- [Bazzacco, D. -- Bellato, M. -- Fanin, C. -- Farnea, E. -- Mengoni, D. -- Michelagnoli, C. -- Montanari, D. -- Recchia, F. -- Ur, C. A.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy -- [Bortolato, D. -- Gottardo, A. -- Valiente-Dobon, J. J.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, IT-35020 Legnaro, Italy -- [Bruyneel, B.] CEA Saclay, DSM IRFU SPhN, F-91191 Gif Sur Yvette, France -- [Ciemala, M. -- Kmiecik, M. -- Maj, A.] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland -- [Eberth, J. -- Hess, H. -- Reiter, P. -- Wiens, A.] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany -- [Gadea, A.] CSIC Univ Valencia, IFIC, ES-46071 Valencia, Spain -- [Gottardo, A. -- Michelagnoli, C. -- Recchia, F.] Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy -- [Mengoni, D.] Univ W Scotland, Sch Engn, Paisley PA1 2BE, Renfrew, Scotland, Kmiecik, Maria -- 0000-0003-2019-2399, Gadea, Andres -- 0000-0002-4233-1970, Montanari, Daniele -- 0000-0002-1980-7686, Camera, Franco -- 0000-0003-1731-4834, Pellegri, Luna -- 0000-0002-3227-3332, Ciemala, Michal -- 0000-0001-5328-720X, GIAZ, Agnese -- 0000-0002-2550-450X, benzoni, giovanna -- 0000-0002-7938-0338, GOTTARDO, Andrea -- 0000-0002-0390-5767, Bottoni, Simone -- 0000-0003-2249-4825, and Recchia, Francesco -- 0000-0002-8428-0112
Subjects: AGATA, Gamma-ray spectroscopy, Gamma-ray tracking, HPGe detectors, Pulse-shape and gamma-ray tracking algorithms, Semiconductor detector performance and simulations, Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Tracking (particle physics), 01 natural sciences, Nuclear physics, 0103 physical sciences, Gamma spectroscopy, ddc:530, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Instrumentation, Detectors de radiació, Physics, Spectrometer, 010308 nuclear & particles physics, Detector, Gamma ray, 81V35, Semiconductor detector, Física nuclear, Hpge detector
Abstract: WOS: 000314826000009, The response of AGATA segmented HPGe detectors to gamma rays in the energy range 2-15 MeV was measured. The 15.1 MeV gamma rays were produced using the reaction d(B-11,n gamma)C-12 at E-beam=19.1 MeV, while gamma rays between 2 and 9 MeV were produced using an Am-Be-Fe radioactive source. The energy resolution and linearity were studied and the energy-to-pulse-height conversion resulted to be linear within 0.05%.Experimental interaction multiplicity distributions are discussed and compared with the results of Geant4 simulations. It is shown that the application of gamma-ray tracking allows a suppression of background radiation caused by n-capture in Ge nuclei. Finally the Doppler correction for the 15.1 MeV gamma line, performed using the position information extracted with Pulse-shape analysis is discussed. (C) 2012 Elsevier B.V. All rights reserved., European Union [262010-ENSAR]; MINECO Spain [AIC-D-2011-0746, FPA2011-29854]; Generalitat Valenciana, Spain [PROME-TEO/2010/101]; German BMBF [06K-167, 06KY205I], This research has received funding from the European Union Seventh Framework Program FP7/2007-2013 under grant Agreement no. 262010-ENSAR. A.G. activity has been supported by the MINECO Spain, under grants AIC-D-2011-0746, FPA2011-29854 and by and Generalitat Valenciana, Spain, under grant PROME-TEO/2010/101. We acknowledge the support by the German BMBF under Grants 06K-167 and 06KY205I.
Published: 2013

31. Coupling a CLOVER detector array with the PRISMA magnetic spectrometer - Investigation of moderately neutron-rich nuclei populated by multinucleon transfer and deep inelastic collisions

Author: Gadea, A., Napoli, D. R., Angelis, G., Menegazzo, R., Stefanini, A. M., Corradi, L., Axiotis, M., Berti, L., Fioretto, E., Kroell, T., Latina, A., Marginean, N., Maron, G., Martinez, T., Rosso, D., Rusu, C., Toniolo, N., Szilner, S., Trotta, M., Bazzacco, D., Beghini, S., Bellato, M., Brandolini, F., Farnea, E., Isocrate, R., Lenzi, S. M., Lunardi, S., Montagnoli, G., Pavan, P., Rossi, Alvarez, Scarlassara, C., Ur, F., Blasi, C., Bracco, N., Camera, A., Leoni, F., Million, S., Pignanelli, B., Pollarolo, Giovanni, Derosa, G., Inglima, A., Commara, G., Rana, M., Pierroutsakou, G., Romoli, D., Sandoli, M., Bizzeti, M., P. G., Bizzeti, Sona, A. M., Bianco, Lo, Petrache, G., C. M., Zucchiatti, Cocconi, A., Quintana, P., Beck, B., Curien, Ch, Duchene, D., Haas, G., Medina, F., Papka, P., Durell, P., Freeman, J., S. J., Smith, Varley, A., Fayz, B., Pucknell, K., Simpson, V., Gelletly, J., Regan, W., Gadea, A., Napoli, D. R., De Angelis, G., Menegazzo, R., Stefanini, A. M., Corradi, L., Axiotis, M., Berti, L., Fioretto, E., Kroell, T., Latina, A., Marginean, N., Maron, G., Martinez, T., Rosso, D., Rusu, C., Toniolo, N., Szilner, S., Trotta, M., Bazzacco, D., Beghini, S., Bellato, M., Brandolini, F., Farnea, E., Isocrate, R., Lenzi, S. M., Lunardi, S., Montagnoli, G., Pavan, P., Alvarez, C. Rossi, Scarlassara, F., Ur, C., Blasi, N., Bracco, A., Camera, F., Leoni, S., Million, B., Pignanelli, M., Pollarolo, G., Derosa, A., Inglima, G., LA COMMARA, Marco, LA RANA, Giovanni, Pierroutsakou, D., Romoli, M., Sandoli, M., Bizzeti, P. G., Bizzeti Sona, A. M., Lo Bianco, G., Petrache, C. M., Zucchiatti, A., Cocconi, P., Quintana, B., Beck, C. h., Curien, D., Duchêne, G., Haas, F., Medina, P., Papka, P., Durell, J., Freeman, S. J., Smith, A., Varley, B., Fayz, K., Pucknell, V., Simpson, J., Gelletly, W., and Regan, P.
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, Spectrometer, Physics::Instrumentation and Detectors, Detector, heavy-ion reactions, high-spin states, gamma, spectroscopy, Particle detector, Semiconductor detector, Nuclear fusion, Physics::Accelerator Physics, Neutron, Gamma spectroscopy, Atomic physics, Nuclear Experiment
Abstract: Following the commissioning of the PRISMA large-acceptance spectrometer, installed at the Laboratori Nazionali di Legnaro (LNL), an international nuclear-structure collaboration has started to develop a large $\gamma$ -ray setup to be installed in the target position of the spectrometer. The array is based on the EUROBALL composite CLOVER detectors. In this contribution the CLOVER detector array is described and its expected performance figures discussed. This new setup, by using the high-intensity heavy-ion beams provided by the LNL ALPI linac, will push the study of nuclear structure towards moderately neutron-rich nuclei by means of quasi-elastic and deep inelastic reactions.

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources

Refine your results

31 results on '"Ur C. A."'

1. Determination of level widths in 15N using nuclear resonance fluorescence

2. The (n,γ) campaigns at EXILL

3. From EXILL (EXogam at the ILL) to FIPPS (FIssion Product Prompt γ-ray Spectrometer)

4. Low-lying bands with different quadrupole deformation in 155Dy

5. AGATA modules as Compton polarimeters for the measurement of gamma-ray linear polarisation

6. Towards experiments at the new ELI-NP facility

7. Mass correlation between light and heavy reaction products in multinucleon transfer $^{197}$Au+$^{130}$Te collisions

8. High-spin structure in the transitional nucleus 131Xe: Competitive neutron and proton alignment in the vicinity of the N=82 shell closure

9. High-spin structures in Xe-132 and Xe-133 and evidence for isomers along the N=79 isotones

10. The (n,gamma) campaigns at EXILL

11. Compound nucleus spin distribution for $^{64}Ni + ^{100}Mo$

12. HEROICA: an Underground Facility for the Fast Screening of Germanium Detectors

13. Measurement of the half-life of the two-neutrino double beta decay of Ge-76 with the Gerda experiment

14. Spectroscopy of Moderately Neutron-rich Nuclei with the CLARA-PRISMA Setup.

15. Test of the critical point symmetry X(5) in neutron deficient osmium isotopes at A≈180.

16. Shape Coexistence in Pb Nuclei Probed by Static Electromagnetic Moments.

17. Nuclear clusters and structure in light nuclei.

18. Lifetime measurement in 74Kr and 76Kr.

19. Spectroscopy of 40Ca and negative-parity bands.

20. Plunger Lifetime Measurements in 102Pd.

21. Multinucleon transfer reactions studied with the heavy-ion magnetic spectrometer PRISMA.

22. AGATA-Advanced GAmma Tracking Array

23. Transition probabilities in 31P and 31S : A test for isospin symmetry

24. Recent experiments in inverse kinematics with the magnetic spectrometer PRISMA

25. Spin distribution measurement for 64Ni + 100Mo at near and above barrier energies

26. Isospin mixing at finite temperature in 80Zr

27. Study of the γ decay of high-lying states in 208Pb via inelastic scattering of 17O ions

28. Nuclear structure far from stability at the N=50 shell closure

29. Pulse shape discrimination for GERDA Phase I data

30. Response of AGATA segmented HPGe detectors to gamma rays up to 15.1MeV

31. Coupling a CLOVER detector array with the PRISMA magnetic spectrometer - Investigation of moderately neutron-rich nuclei populated by multinucleon transfer and deep inelastic collisions

Catalog

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Database

Publisher

31 results on '"Ur C. A."'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources