共查询到20条相似文献,搜索用时 15 毫秒
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S. J. Asztalos P. Fallon R. M. Clark J. A. Becker L. A. Bernstein B. Cederwall M. A. Deleplanque R. M. Diamond L. P. Farris E. A. Henry W. H. Kelly I. Y. Lee A. O. Macchiavelli F. S. Stephens 《Zeitschrift für Physik A Hadrons and Nuclei》1995,352(3):239-240
High-spin states in192Pb were populated via the reaction173Yb(24Mg,5n) at a beam energy of 140 MeV, and the resulting-rays were deteced using GAMMASPHERE. A previously observed superdeformed band in192Pb has been confirmed. 相似文献
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I. G. Bearden R. V. F. Janssens M. P. Carpenter E. F. Moore I. Ahmad A. M. Baxter Ph. Benet P. J. Daly M. W. Drigert P. B. Fernandez U. Garg Z. W. Grabowski T. L. Khoo T. Lauritsen W. Reviol D. Ye 《Zeitschrift für Physik A Hadrons and Nuclei》1992,341(4):491-492
New measurements of the pionic double charge exchange on56Fe exhibit a pronounced energy dependence of this reaction at low energies in accordance with similar observations on other nuclei. We show that this peculiar energy dependence finds its natural explanation by a resonance in theNN subsystem withJ
p
=0–,T=0 and a mass of 2.065 GeV.This work has been funded by the German Federal Minister for Research and Technology (BMFT) under the contract numbers 06 TÜ 656 and 06 KA 266 and by the DFG (Mu 704/3, Graduiertenkolleg) 相似文献
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E. A. Henry A. Kuhnert J. A. Becker M. J. Brinkman T. F. Wang J. A. Cizewski W. Korten F. Azaiez M. A. Deleplanque R. M. Diamond J. E. Draper W. H. Kelly A. O. Macchiavelli F. S. Stephens 《Zeitschrift für Physik A Hadrons and Nuclei》1991,338(4):469-470
A new superdeformed band, identified in data from the24Mg+173Yb reaction, is assigned to192Pb on the basis of excitation function and coincidence results. Properties of this band are discussed briefly, and compared to the superdeformed bands known in other Pb nuclei. 相似文献
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Henry RG Lauritsen T Khoo TL Ahmad I Carpenter MP Crowell B Dossing T Janssens RV Hannachi F Korichi A Schuck C Azaiez F Beausang CW Beraud R Bourgeois C Clark RM Deloncle I Duprat J Gall B Hubel H Joyce MJ Kaci M Lecoz Y Meyer M Paul ES Perrin N Poffe N Porquet MG Redon N Sergolle H Sharpey-Schafer JF Simpson J Smith AG Wadsworth R Willsau P 《Physical review letters》1994,73(6):777-781
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Cederwall B Janssens RV Brinkman MJ Lee IY Ahmad I Becker JA Carpenter MP Crowell B Deleplanque MA Diamond RM Draper JE Duyar C Fallon P Farris LP Henry EA Henry RG Hughes JR Khoo TL Lauritsen T Macchiavelli AO Rubel E Stephens FS Stoyer MA Satula W Wiedenhoever I Wyss R 《Physical review letters》1994,72(20):3150-3153
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S. Bouneau F. Azaiez J. Duprat I. Deloncle M.-G. Porquet U.J. van Severen T. Nakatsukasa M.-M. Aléonard A. Astier G. Baldsiefen C.W. Beausang F.A. Beck C. Bourgeois D. Curien N. Dozié L. Ducroux B.J.P. Gall H. Hübel M. Kaci W. Korten M. Meyer N. Redon H. Sergolle J.F. Sharpey-Schafer 《Zeitschrift für Physik A Hadrons and Nuclei》1997,358(2):179-180
The study of the superdeformed 196Pb nucleus has been revisited using the EUROGAMphase 2 array. In addition to the known yrast and two excited SD bands, a third excited SD band has been found. All of the three excited bands were found to decay to the yrast SD band through presumably E1 transitions. Comparisons with calculations using RPAapproximation indicate that the excited bands can be interpreted as octupole-vibrational structures. 相似文献
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C. W. Beausang E. A. Henry J. A. Becker N. Roy S. W. Yates M. A. Deleplanque R. M. Diamond F. S. Stephens J. E. Draper W. H. Kelly J. Burde R. J. McDonald E. Rubel M. J. Brinkman J. A. Cizewski Y. A. Akovali 《Zeitschrift für Physik A Hadrons and Nuclei》1990,335(3):325-330
Two rotational bands, with energy spacings characteristic of superdeformed shapes, have been observed following bombardment of150Nd with48Ca. The more intensively populated band consists of 18 transitions and is assigned to194Hg. The depopulation of this band occurs around spin 10. The second band, consisting of at least 16 transitions, was populated less strongly and is tentatively assigned to194Hg also. The lowest level in this band is assigned spin 8. The energy differences between transitions for both bands decrease from ~40 keV at low rotational frequencies to ~30 keV at the highest observed frequencies. The moments of inertia of the bands are similar to those of the two previously observed superdeformed bands in191,192Hg. The similarities and differences of the four known bands in the mercury region are discussed. 相似文献
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Y. -X. Luo J. -Q. Zhong D. J. G. Love A. Kirwan P. J. Bishop M. J. Godfrey I. Jenkins P. J. Nolan S. M. Mullins R. Wadsworth 《Zeitschrift für Physik A Hadrons and Nuclei》1988,329(1):125-126
A rotational band of 16γ-rays has been found in131Ce with a high moment of inertia indicating a deformation ε2~0.38 and extending to spin ~40?. Its intensity is ~~5% of the total in131Ce, confirming a difference in the intensity systematics for superdeformed states in Ce nuclei compared with Nd. 相似文献
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T. Rzaca-Urban K. Strähle G. Hebbinghaus D. Balabanski W. Gast R. M. Lieder H. Schnare W. Urban P. von Brentano A. Dewald J. Eberth E. Ott J. Theuerkauf H. Wolters K. O. Zell D. Alber K. H. Maier E. M. Beck H. Hübel W. Schmitz 《Zeitschrift für Physik A Hadrons and Nuclei》1991,339(3):421-422
A non-yrast superdeformed band has been found in146Gd using the110Pd(40Ar, 4n)146Gd reaction. The nuclear assignment was made from the analysis of an experiment using a backed target. This band and the previously identified yrast SD band are probably not signature partners. 相似文献
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Khoo TL Carpenter MP Lauritsen T Ackermann D Ahmad I Blumenthal DJ Fischer SM Janssens RV Nisius D Moore EF Lopez-Martens A Dossing T Kruecken R Asztalos SJ Becker JA Bernstein L Clark RM Deleplanque MA Diamond RM Fallon P Farris LP Hannachi F Henry EA Korichi A Lee IY Macchiavelli AO Stephens FS 《Physical review letters》1996,76(10):1583-1586
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A. Neußer H. Hübel G.B. Hagemann S. Bhattacharya P. Bringel D. Curien O. Dorvaux J. Domscheit F. Hannachi D.R. Jensen A. Lopez-Martens E. Mergel N. Nenoff A.K. Singh 《The European Physical Journal A - Hadrons and Nuclei》2002,15(4):439-441
First evidence is presented for triaxial superdeformation in 170Hf. High-spin states in this nucleus have been investigated in a γ-ray coincidence measurement using the EUROBALL spectrometer
array. A new band was discovered which has moments of inertia that are very similar to the ones of triaxial superdeformed
bands in neighbouring Hf and Lu nuclei. The intensities with which these bands are populated are different from what may be
expected from calculated potential-energy minima.
Received: 11 September 2002 / Accepted: 15 October 2002 / Published online: 10 December 2002
RID="a"
ID="a"e-mail: neusser@iskp.uni-bonn.de
Communicated by D. Schwalm 相似文献
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A. Ataç A. Axelsson I. G. Bearden M. H. Bergström J. Nyberg M. Palacz J. Persson M. Piiparinen C. Fahlander G. B. Hagemann B. Herskind D. T. Joss S. Leoni M. Lipoglavšek P. J. Nolan E. S. Paul N. Redon L. Roos A. T. Semple G. Sletten K. Tuček 《Zeitschrift für Physik A Hadrons and Nuclei》1976,355(4):343-344
A discrete γ-ray transition with an energy of 3360.6 keV deexciting the second lowest SD state in 143 Eu has been discovered. It carries 3.2 % of the full intensity of the band and feeds into a nearly spherical state which is above the I = 35/2(+), Ex=4947 keV level. The exact placement of the single-step link is, however, not established due to the specially complicated level scheme in the region of interest. The energy of the single-step link agrees well with the previously determined two-step links. 相似文献
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J. Styczen R. Menegazzo W. Starzecki P. Kleinheinz 《Zeitschrift für Physik A Hadrons and Nuclei》1987,327(4):481-482
Further analysis of earlier152Gd(α,4n) in-beam data revealed several previously unplaced152Dy γ-rays feeding the oblate yrast states, among them γ-transitions emitted in decay of the superdeformed band. We can also weakly detect the lowest two members of the superdeformed cascade, but our data were not quite good enough to make a firm connection to them. 相似文献
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A. Ataç A. Axelsson I. G. Bearden M. H. Bergström J. Nyberg M. Palacz J. Persson M. Piiparinen C. Fahlander G. B. Hagemann B. Herskind D. T. Joss S. Leoni M. Lipoglavšek P. J. Nolan E. S. Paul N. Redon L. Roos A. T. Semple G. Sletten K. Tuček 《Zeitschrift für Physik A Hadrons and Nuclei》1996,354(1):343-344
209Fr has been produced by irradiation of197Au with16O,and studied using a He-jet recoil tape transport system.A decay scheme is proposed for the first time,based on X-γ and γ-γ coincidence measurements,which takes account of 20 observed γ-rays. The branching ratio for (EC+β +) decay of209Fr has been estimated to be 3.0±1.5%. Five members of low-lying states in209Rn can be explained with the configuration [(210Rn 2+)(νf5/2)?1]. 相似文献