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1.
The high spin yrast states up toJ=20+ in184, 186Pt and190, 192, 194Pt are studied in a microscopic approach of variation with number-conserved projected states. The energy spectra, quadrupole
moments andB(E2) values are calculated by employing the Hamiltonian with quadrupole plus pairing interactions. The results of the calculations
are in fair agreement with the available experimental data. 相似文献
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I. N. Wischnewski H. V. Klapdor H. Fromm P. Herges 《Zeitschrift für Physik A Hadrons and Nuclei》1981,301(1):29-34
High spin states have been investigated by the reaction90Zr(19F, 3nγ), using an Anticompton spectrometer device, for the nucleus106In, for which no in-beamγ-spectroscopic information was available up to now. A level scheme has been constructed up to anI =(13,14) state. 相似文献
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Jagbir Singh Harjeet Kaur A. Sharma J. Goswamy D. Mehta Nirmal Singh P. N. Trehan E. S. Paul R. K. Bhowmik 《Zeitschrift für Physik A Hadrons and Nuclei》1996,356(1):125-132
High spin states of121Te, populated in the114Cd(11B,p3n) reaction, have been studied throughγ-ray spectroscopy. The level scheme has been established up toJ π=51/2?. Three-quasiparticle states, based on the πg 7/2 2?νh 11/2 andπg 7/2 d 5/2?νh 11/2 configurations, have been identified. A favoured 39/2? state is suggested to be the fully aligned [πg 7/2 2]6+?[νh 11/2 3 27/2? yrast non-collective oblate configuration. This assignment is supported by Total Routhian Surface (TRS) calculations which also suggest a similar oblate assignment to the states atJ π=21/2? and 23/2?. A higher 47/2? state is also found and is suggested to be the fully aligned [πg 7/2 2]6+?[νh 11/2 5]35/2? configuration. 相似文献
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A. Sharma J. Singh H. Kaur J. Goswamy D. Mehta N. Singh P. N. Trehan E. S. Paul R. K. Bhowmik 《Zeitschrift für Physik A Hadrons and Nuclei》1996,354(1):347-357
High spin states in116,118Te, populated in102Ru(19F,p 4 n) and110Pd (13C, 5n) reactions, have been studied throughγ-ray spectroscopy. The level schemes have been established up toI?25?. A favouredI π = 16+ state in these nuclei is suggested to be based on the fully alignedπ[(g 7/2)2]6 +?ν[(h 11/2)2]10 + non-collective oblate configuration. This assignment is supported by TRS cranking calculations, which also predict similar non-collective oblate assignment for states at 14?, 19? and 22? in these nuclei. 相似文献
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C. -B. Moon S. J. Chae J. C. Kim Y. K. Kim J. U. Kwon C. S. Lee K. Furuno T. Komatsubara T. Hayakawa H. Kimura J. Lu M. Matsuda J. Mukai T. Watanabe 《Zeitschrift für Physik A Hadrons and Nuclei》1994,350(1):1-2
Isotopic ratios were measured for Li, Be and B produced in p+Al, p+Nl and p+Ag reactions. The experimental data were analysed in the framework of the Quantum Statistical Model in order to relate the isotopic yield ratios to the baryonic entropy. 相似文献
9.
M. Behar A. M. J. Ferrero A. Filevich A. O. Macchiavelli 《Zeitschrift für Physik A Hadrons and Nuclei》1985,320(3):467-474
High spin states in97Rh were excited via the96Ru (α,2np) reaction at 45 MeV. As a main finding we have observed a positive parity band, built on the 9/2+ ground state, which depopulated levels at 3,550.7 (25/2+), 3,259.1 (23/2+), 2,895.1 (23/2+), 1,961.3 (19/2+), 1,553.1 (17/2+) and 857.1 (13/2+). Also we have excited levels at 3,055.8 (21/2), 2,225.4 (17/2) and 1,463.5 (15/2), which most likely are negative parity states. 相似文献
10.
C. Schumacher P. von Brentano A. Dewald M. Eschenauer H. Grawe J. Heese K. H. Maier M. Philipp E. Radermacher R. Schubart O. Stuch J. Theuerkauf D. Weißhaar M. Wilhelm K. O. Zell 《Zeitschrift für Physik A Hadrons and Nuclei》1995,352(2):161-162
The level scheme of148Tb has been extended to an excitation energyE x =14.0 MeV and a spinI≈ 38? in two experiments with the OSIRIS Comptom suppressed detector array at the HMI Berlin using the reactions122Sn(31P,5n)148Tb at 160 MeV and120Sn(31P,3n)148Tb at 152 MeV. 相似文献
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W. Lieberz S. Freund A. Granderath A. Gelberg A. Dewald R. Reinhardt R. Wirowski K. O. Zell P. von Brentano 《Zeitschrift für Physik A Hadrons and Nuclei》1988,330(2):221-222
High spin states of126Xe have been populated by means of the116Cd(13C, 3n) reaction using the OSIRIS-12 detector system. A level scheme consisting of 13 bands has been established. More than 40 new levels were observed and several spin and parity assignments could be made. Experimental Routhians and alignments of selected bands are presented. 相似文献
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A. Sharma J. Goswamy D. Mehta B. Chand N. Singh P. N. Trehan 《Zeitschrift für Physik A Hadrons and Nuclei》1992,344(3):349-350
High spin states in
117Tewere populated following the
108Pd(16O,2p5n)reaction at Elab=84MeV and the subsequent de-excitation was studied using ray spectroscopic techniques. Two new bands consisting of E2 transitions were established upto spins 41/2 and 45/2, above the band built on v[505]11/2–
orbital. Such bands are seen for the first time in the systematics of odd- mass Te- nuclei. 相似文献
13.
U. Hermkens F. Becker J. Eberth S. Freund T. Mylaeus S. Skoda W. Teichert A. v. d. Werth 《Zeitschrift für Physik A Hadrons and Nuclei》1992,343(3):371-372
High spin states of66,68Ge have been investigated at the FN Tandem accelerator of the University of Köln via the reactions40Ca(32S,2p,4p)66,68Ge at a beam energy of 100 MeV and58Ni(16O,2p)68Ge at 65 MeV. The OSIRIS spectrometer with 12 escape suppressed Ge detectors was used to measure coincidences and -ray angular distributions. In66Ge (68Ge) 33 (22) new levels were found and 63 (62) new -transitions were placed in the level scheme. Both nuclei show a rather complicated but similar excitation pattern, ruled by the interplay of quasiparticle and collective degrees of freedom. The results are compared to the recently published EXVAM calculations for68Ge.Supported by German BMFT under contract No. 06 OK 143. 相似文献
14.
M. Palacz Z. Sujkowski J. Nyberg J. Bacelar J. Jongman W. Urban W. Hesselink J. Nasser A. Plompen R. Wyss 《Zeitschrift für Physik A Hadrons and Nuclei》1991,338(4):467-468
Gamma ray spectra from the117Sn(18O,4n)131 Ce reaction have been studied with the NORDBALL array of 15 Compton-suppressed Ge detectors. States up to I=51/2 , E8 MeV are populated. Observed bands are interpreted in terms of quasiparticle configurations. 相似文献
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A. Charvet R. Duffait R. Béraud K. Deneffe A. Emsallem M. Meyer J. Tréherne A. Gizon 《Zeitschrift für Physik A Hadrons and Nuclei》1984,315(2):163-167
High spin states in103Rh have been studied using the100Mo(7Li, 4n) reaction. Standard in-beam measurements involving singlesγ-ray,γ-γ-t coincidences, angular distribution and linear polarization measurements have been performed. A perturbed band based on a 9/2+ state is interpreted as ag 9/2 coupled band. A sequence built on a 1/2? state is related to thep 1/2 state. At higher excitation energy, in the range 2.2–3.7 MeV, the strongΔI=1 cascade observed, connecting negative parity levels, probably arises from states including three quasi-particle configurations. 相似文献
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C. Schumacher P. von Brentano A. Dewald M. Eschenauer H. Grawe J. Heese K. H. Maier M. Philipp E. Radermacher R. Schubart O. Stuch J. Theuerkauf D. Weißhaar M. Wilhelm 《Zeitschrift für Physik A Hadrons and Nuclei》1995,351(1):39-41
The level scheme of147Tb has been extended to 116 levels and 198 transitions in two experiments with the OSIRIS Compton suppressed detector array at the HMI Berlin with the reactions122Sn(31P, 6n)147Tb at 160 MeV and120Sn(31P, 4n)147Tb at 152 MeV. Evidence for a new high spin isomer atE=7664.1 keV with a life-time of the order of 2 ns has been found. 相似文献
17.
C. Schumacher P. von Brentano A. Dewald M. Eschenauer H. Grawe J. Heese K. H. Maier M. Philipp E. Radermacher R. Schubart O. Stuch J. Theuerkauf D. Weil M. Wilhelm K. O. Zell 《Zeitschrift für Physik A Hadrons and Nuclei》1996,354(1):123-124
The data from two experiments with heavy ion induced reactions at the OSIRIS Compton suppressed Ge detector array has been analyzed to study high spin states in145Gd. The level scheme of145Gd has been extended up to an excitation energy of 12 MeV and an estimated spin of 25 ?. No evidence for high spin isomers was found. 相似文献
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C. Foin S. André D. Barnéoud G. Bastin A. Peghaire J. P. Thibaud 《Zeitschrift für Physik A Hadrons and Nuclei》1982,305(1):81-85
High spin states in153Er have been populated in the144Sm(12C, 3n)133Er reaction. Excitation functions, lifetimes, angular distributions,γ-γ coincidences and internal conversion coefficients were measured. Three isomeric states at 2.75 MeV (T 1/2=400 ns), 2.95 MeV (T 1/2~10 ns) and 5.2 MeV (T 1/2=200 ns) have been observed. A fourth isomer seems to be weakly excited above 6.8 MeV. The level scheme proposed is discussed in term of the nuclear shell model. 相似文献
19.
A. Sharma J. Goswamy D. Mehta Jagbir Singh Harjeet Kaur B. Chand N. Singh R. K. Bhowmik P. N. Trehan 《Zeitschrift für Physik A Hadrons and Nuclei》1993,346(4):321-322
The high spin states in116Te were populated in the Ru(19F,p4n) reaction at Elab=90MeV and the subsequent deexcitation was studied using the γ-ray spectroscopic techniques. Ninteen new transitions have been added to extend the level scheme. A ΔI=2 rotational band is identified for the first time in an even-A Tellurium nucleus. 相似文献
20.
M. Rejmund K. H. Maier R. Broda M. Lach J. Wrzesiński J. Agramunt J. Blomqvist A. Gadea J. Gerl M. Górska H. Grawe M. Kaspar I. Kozhoukharov I. Peter H. Schaffner R. Schubart Ch. Schlegel G. Stengel S. Wan H. J. Wollersheim 《Zeitschrift für Physik A Hadrons and Nuclei》1997,359(3):243-245
High spin states in nuclei in the 208Pb region were populated in deep inelastic collisions of 136Xe and 208Pb projectiles with thick 208Pb targets at about 50 MeV above the Coulomb barrier. Prompt and prompt-delayed γ-ray coincidences were measured. Four new states above the 8+ isomer in 210Pb were found and spins and parities assigned from theoretical expectations. The results are discussed in the frame of shell model theory. 相似文献