Zobrazeno 1 - 10
of 100
pro vyhledávání: '"S J Asztalos"'
Autor:
J. K. Hwang, E. H. Wang, A. V. Ramayya, J. H. Hamilton, C. J. Beyer, J. O. Rasmussen, Y. X. Luo, S. C. Wu, T. N. Ginter, C. M. Folden, P. Fallon, P. M. Zielinski, K. E. Gregorich, A. O. Macchiavelli, M. Stoyer, S. J. Asztalos, A. Covello, A. Gargano
Publikováno v:
Physical Review C. 106
Publikováno v:
The Astrophysical Journal. 713:1167-1173
Cosmology with Type Ia supernovae heretofore has required extensive spectroscopic follow-up to establish a redshift. Though tolerable at the present discovery rate, the next generation of ground-based all-sky survey instruments will render this appro
Publikováno v:
The Astrophysical Journal. 662:744-749
We investigate the ellipticity of the point-spread function (PSF) produced by imaging an unresolved source with a telescope, subject to the effects of atmospheric turbulence. It is important to quantify these effects in order to understand the errors
Autor:
Eric B. Norman, M.R. Accatino, T.B. Sundsmo, R.S. Walling, Adam Bernstein, Stanley G. Prussin, J. A. Church, Norman W. Madden, Thomas B. Gosnell, T.L. Moore, Marie-Anne Descalle, D Slaughter, J.M. Hall, D. Manatt, B. Rusnak, G.J. Mauger, A. Meyer, S. J. Asztalos, A. Loshak, D.C. Petersen, B.A. Pohl, O Alford, W.K. Tenbrook, J. Pruet
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 569:853-862
A Monte Carlo model has been developed for interrogation of fissionable material embedded in thick cargos when high-energy β-delayed γ-rays are detected following neutron-induced fission. The model includes the principal structural components of th
Publikováno v:
Annual Review of Nuclear and Particle Science. 56:293-326
▪ Abstract The axion, a favored dark matter candidate, is expected to have a very small mass and extraordinarily weak couplings. Although it has eluded discovery or exclusion for three decades, it remains the most compelling solution to the strong-
Autor:
S. C. Wu, T. N. Ginter, S. J. Asztalos, P. Fallon, X. Q. Zhang, J. O. Rasmussen, J. K. Hwang, A. V. Ramayya, I. Y. Lee, P. Zielinski, J. H. Hamilton, Charles M. Folden, Y. X. Luo, A. O. Macchiavelli, Kenneth E. Gregorich, C. J. Beyer, M. A. Stoyer
Publikováno v:
Journal of Physics G: Nuclear and Particle Physics. 28:L9-L14
New excited states built on the 11/2− isomeric states are identified in neutron-rich 121,123Cd, respectively, with gammasphere by measuring three-and higher-fold prompt coincidences following the spontaneous fission of 252Cf. The new data suggests
Autor:
P. Fallon, R. M. Clark, R. Krücken, G. J. Schmid, F. S. Stephens, Kai Vetter, S. J. Asztalos, M. A. Deleplanque, R. M. Diamond, I. Y. Lee, Jing-Ye Zhang, A. O. Macchiavelli
Publikováno v:
The European Physical Journal A. 10:151-155
High-spin states in 112Pd were studied using prompt γ-ray spectroscopy with Gammasphere following heavy-ion-induced fission in the reaction 18O + 208Pb at 91 MeV. A new 8+ level at 2638 keV was discovered with transitions connecting it to the yrast
Autor:
R. M. Clark, L. A. Bernstein, P. Fallon, G. J. Schmid, R. Krücken, F. S. Stephens, S. J. Asztalos, J. A. Becker, K. Hauschild, N. Fotiades, M. A. Deleplanque, Zheng Wang, Kai Vetter, R. M. Diamond, I. Y. Lee, A. O. Macchiavelli
Publikováno v:
The European Physical Journal A. 5:367-370
Lifetimes of states in the two strongest superdeformed (SD) bands in 193Tl were measured using the Doppler-shift attenuation method. The reaction 176Yb(23Na,6n)193Tl at a beam energy of 129 MeV was used and γ-rays were detected by the Gammasphere ar
Autor:
R. Krücken, D. G. Jenkins, Kai Vetter, F. S. Stephens, R. W. MacLeod, S. Juutinen, C. J. Chiara, A. O. Macchiavelli, N. S. Kelsall, D. B. Fossan, R. Wadsworth, Gregory Lane, R. M. Clark, P. Fallon, G. J. Schmid, S. J. Asztalos, J. F. Smith, I. Y. Lee, S. Frauendorf, M. A. Deleplanque, R. M. Diamond, J. M. Sears, B. Busse, M. Cromaz
Publikováno v:
Physical Review Letters. 82:3220-3223
Lifetimes of states in a rotational-like $M1$ band in ${}^{110}\mathrm{Cd}$ have been determined through a Doppler-shift attenuation method measurement performed with the Gammasphere array. The deduced $B(M1)$ values, which agree well with the predic
Autor:
R. W. Lougheed, A. V. Ramayya, M. F. Mohar, J. K. Hwang, Raul Donangelo, J. Kormicki, K. J. Moody, C. Y. Gan, L. Y. Zhu, S. Y. Chu, W. E. Collins, W. C. Ma, Ming Li, Gui-Lu Long, L. K. Peker, J. H. Hamilton, A. O. Macchiavelli, I. Y. Lee, M. W. Drigert, J. O. Rasmussen, S. J. Asztalos, K. E. Gregorich, J. D. Cole, B. R. S. Babu, R. Aryaeinejad, Stanley G. Prussin, S. J. Zhu, J. Gilat, A. V. Daniel, J. K. Deng, E. F. Jones, M. A. Stoyer, T. N. Ginter, D. Shi, Meng Wang, J. F. Wild, Yu. Ts. Oganessian, G. M. Ter-Akopian, G. Drafta
Publikováno v:
Physical Review C. 59:1316-1323
Several new high-spin states are observed in the prompt $\ensuremath{\gamma}$-rays emitted from the neutron-rich, odd-$Z$ ${}^{145,147}\mathrm{La}$ fragments produced in the spontaneous fission of ${}^{252}\mathrm{Cf}.$ Alternating parity bands are e