Zobrazeno 1 - 10
of 152
pro vyhledávání: '"R.P. Schmitt"'
Autor:
Yoshiyuki Iwata, S. Hamada, Y. Tokimoto, Tamio Yamagata, Y. Aoki, Katsuya Hirota, Yiu-Wing Lui, Kazuo Ieki, Hiroaki Utsunomiya, Stefan Typel, K. Katori, R.P. Schmitt, Gerhard Baur, Masahisa Ohta
Publikováno v:
Scopus-Elsevier
Strong forward-backward asymmetries were found in the recent α — t coincidence measurement of Coulomb breakup of 42 MeV- 7 Li via continuum states. The competition between E1 and E2 multipolarities and higher order effects in Coulomb excitation we
Autor:
Kazuo Ieki, R.P. Schmitt, Masahisa Ohta, Katsuya Hirota, K. Osada, S. Hamada, Y. Aoki, Y. Tokimoto, K. Katori, Hiroaki Utsunomiya, Y. Iwata, Tamio Yamagata, Yiu-Wing Lui
Publikováno v:
Journal of Physics G: Nuclear and Particle Physics. 24:1637-1640
Delayed nature associated with the quantum tunnelling effect was found for non-resonant break-up of through the Gamow energy region. This delayed nature is discussed in the astrophysical context of the Coulomb dissociation method; post Coulomb accele
Autor:
J. Boger, L. Cooke, D. O'Kelly, B. K. Srivastava, B. Hurst, R.P. Schmitt, T. Botting, W. Turmel
Publikováno v:
Nuclear Physics A. 636:3-27
Inclusive neutron multiplicity distributions have been measured for 30 A MeV 14 N, 20 Ne, 63 Cu and 55 A MeV 4 He beams incident on targets ranging from 12 C to 238 U. For the lightest targets, the distributions decrease approximately exponentially w
Autor:
Y. Tokimoto, K. Osada, R.P. Schmitt, Katsuya Hirota, Hiroaki Utsunomiya, Yoshiyuki Iwata, Tamio Yamagata, S. Hamada, Y. Aoki, Kazuo Ieki, K. Katori, Masahisa Ohta, Y.-W. Lui
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 402:417-420
The method of Coulomb breakup was investigated used to extract absolute astrophysical S-factors for primordial 7Li synthesis. The method is discussed for the breakup of 42 MeV-7Li through astrophysical continuum states with emphasis on the amplificat
Autor:
Hiroaki Utsunomiya, D. O'Kelly, R.P. Schmitt, Tamio Yamagata, Yiu-Wing Lui, Yukinori Sakuragi, S. Okabe, T. Botting, Yoshiharu Hirabayashi, B. Hurst, Masahisa Ohta
Publikováno v:
Physics Letters B. 393:301-306
Coincidence measurements of α- 12 C pairs collinearly emitted in the breakup of 30 MeV/u- 16 O incident on 208 Pb and 120 Sn were performed with a two detector system set up along the focal plane of a magnetic spectrograph. Double differential cross
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 371:514-521
Plastic phoswich detectors, consisting of a 400 μm fast scintillator (BC400) and a 22 mm slow scintillator (BC444), were used for heavy ion identification in magnetic spectrograph measurements. While the light output from the phoswich in a fast time
Publikováno v:
Physical Review C. 52:3483-3487
We consider the radiative capture process \ensuremath{\alpha}+d${\ensuremath{\rightarrow}}^{6}$Li+\ensuremath{\gamma} at energies, ${\mathit{E}}_{\mathrm{c}.\mathrm{m}.}$\ensuremath{\le}300 keV, that are relevant for astrophysical processes. Due to t
Autor:
L. Cooke, T. Shutt, H. Dejbakhsh, D.R. Haenni, R.P. Schmitt, B. Srivastava, Hiroaki Utsunomiya
Publikováno v:
Nuclear Physics A. 592:130-150
The gamma-ray multiplicities (Mγ) of fission fragments have been investigated in a variety of 16O- and 32S-induced reactions. The dependence of Mγ on target mass and excitation energy is well explained by a model which assumes the thermal excitatio
Autor:
Arturo Alejandro Menchaca-Rocha, K. Hagel, M. Gonin, G. Nebbia, G. Prete, María-Ester Brandan, M. Poggi, Jesus Alvarez Ruiz, J. Li, R. Tezkratt, B. Hurst, M. Gui, D. O'Kelly, J. B. Natowitz, D. Utley, L. Cooke, Giuseppe Viesti, R.P. Schmitt, D. Fabris, B. Burch, B. Xiao, G. Mouchaty, W. Turmel, R. Wada, F. Gramegna, T. Botting, Y. Lou
Publikováno v:
Nuclear Physics A. 581:373-396
Light-particle emission from the fission reactions of 63Cu + 92,100Mo and 20Ne + 144,148,154Sm has been studied using the Texas A&M Neutron Ball detector. Linearmomentuum transfers (LMT) were determined from fission-fragment-folding-angle measurement
Autor:
D. O'Kelly, G. Nebbia, R. Wada, B. Srivastava, G. Derrig, R.P. Schmitt, D. Utley, J. B. Natowitz, D. Fabris, B. Hurst, Hiroaki Utsunomiya, W. Turmel, L. Cooke
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 354:487-495
A 4π “neutron ball” is described. This detector operates on the same principles as the liquid scintillator tanks traditionally employed in low energy fission studies. However, the current device has been specifically designed for in-beam experim