Zobrazeno 1 - 10
of 155
pro vyhledávání: '"Nyhus, H T"'
Autor:
Kibédi, T., Alshahrani, B., Stuchbery, A. E., Larsen, A. C., Görgen, A., Siem, S., Guttormsen, M., Giacoppo, F., Morales, A. I., Sahin, E., Tveten, G. M., Garrote, F. L. Bello, Campo, L. Crespo, Eriksen, T. K., Klintefjord, M., Maharramova, S., Nyhus, H. -T., Tornyi, T. G., Renstrøm, T., Paulsen, W.
The cascading 3.21 MeV and 4.44 MeV electric quadrupole transitions have been observed from the Hoyle state at 7.65 MeV excitation energy in $^{12}$C, excited by the $^{12}$C(p,p$^{\prime}$) reaction at 10.7 MeV proton energy. From the proton-$\gamma
Externí odkaz:
http://arxiv.org/abs/2009.10915
Autor:
Renstrøm, T., Tveten, G. M., Midtbø, J. E., Utsunomiya, H., Achakovskiy, O., Kamerdzhiev, S., Brown, B. Alex, Avdeenkov, A., Ari-izumi, T., Görgen, A., Grimes, S. M., Guttormsen, M., Hagen, T. W., Ingeberg, V. W., Katayama, S., Kheswa, B. V., Larsen, A. C., Lui, Y. -W., Nyhus, H. -T., Siem, S., Symochko, D., Takenaka, D., Voinov, A. V.
Nuclear level densities and $\gamma$-ray strength functions have been extracted for $^{59, 60}\rm{Ni}$, using the Oslo method on data sets from the $^{60}$Ni($^{3}$He,$^{3}$He$^{\prime}\gamma$)$^{60}$Ni and $^{60}$Ni($^{3}$He,$\alpha\gamma$)$^{59}$Ni
Externí odkaz:
http://arxiv.org/abs/1804.08086
Autor:
Renstrøm, T., Utsunomiya, H., Nyhus, H. T., Larsen, A. C., Guttormsen, M., Tveten, G. M., Filipescu, D. M., Gheorghe, I., Goriely, S., Hilaire, S., Lui, Y. -W., Midtbø, J. E., Péru, S., Shima, T., Siem, S., Tesileanu, O.
Publikováno v:
Phys. Rev. C 98, 054310 (2018)
The photo-neutron cross sections of $^{162,163}\rm{Dy}$ have been measured for the first time in an energy region from the neutron threshold ($S_n$) up to $\approx$ $13$~MeV. The ($\gamma$,n) reaction was induced with quasi-monochromatic laser Compto
Externí odkaz:
http://arxiv.org/abs/1804.07654
Autor:
Larsen, A. C., Guttormsen, M., Blasi, N., Bracco, A., Camera, F., Campo, L. Crespo, Eriksen, T. K., Görgen, A., Hagen, T. W., Ingeberg, V. W., Kheswa, B. V., Leoni, S., Midtbø, J. E., Million, B., Nyhus, H. T., Renstrøm, T., Rose, S. J., Ruud, I. E., Siem, S., Tornyi, T. G., Tveten, G. M., Voinov, A. V., Wiedeking, M., Zeiser, F.
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 44 (2017) 064005
Nuclear level densities and $\gamma$-ray strength functions of $^{56,57}$Fe have been extracted from proton-$\gamma$ coincidences. A low-energy enhancement in the $\gamma$-ray strength functions up to a factor of 30 over common theoretical E1 models
Externí odkaz:
http://arxiv.org/abs/1612.04231
Autor:
Tveten, G. M., Spyrou, A., Schwengner, R., Naqvi, F., Larsen, A. C., Eriksen, T. K., Garrote, F. L. Bello, Bernstein, L. A., Bleuel, D. L., Campo, L. Crespo, Guttormsen, M., Giacoppo, F., Görgen, A., Hagen, T. W., Hadynska-Klek, K., Klintefjord, M., Meyer, B. S., Nyhus, H. T., Renstrøm, T., Rose, S. J., Sahin, E., Siem, S., Tornyi, T. G.
One of the greatest questions for modern physics to address is how elements heavier than iron are created in extreme, astrophysical environments. A particularly challenging part of that question is the creation of the so-called p-nuclei, which are be
Externí odkaz:
http://arxiv.org/abs/1605.07012
Autor:
Renstrøm, T., Nyhus, H. -T., Utsumoniya, H., Schwengner, R., Goriely, S., Larsen, A. C., Filipescu, D. M., Gheorghe, I., Bernstein, L. A., Bleuel, D. L., Glodariu, T., Görgen, A., Guttormsen, M., Hagen, T. W., Kheswa, B. V., Lui, Y. -W ., Negi, D., Ruud, I. E., Shima, T., Siem, S., Takahisa, K., Tesileanu, O., Tornyi, T. G., Tveten, G. M., Wiedeking, M.
The $\gamma$-ray strength functions and level densities of $^{73,74}$Ge have been extracted up to the neutron separation energy S$_n$ from particle-$\gamma$ coincidence data using the Oslo method. Moreover, the $\gamma$-ray strength function of $^{74
Externí odkaz:
http://arxiv.org/abs/1510.05219
Autor:
Guttormsen, M., Aiche, M., Garrote, F. L. Bello, Bernstein, L. A., Bleuel, D. L., Byun, Y., Ducasse, Q., Eriksen, T. K., Giacoppo, F., Görgen, A., Gunsing, F., Hagen, T. W., Jurado, B., Klintefjord, M., Larsen, A. C., Lebois, L., Leniau, B., Nyhus, H. T., Renstrøm, T., Rose, S. J., Sahin, E., Siem, S., Tornyi, T. G., Tveten, G. M., Voinov, A., Wiedeking, M., Wilson, J.
It is almost 80 years since Hans Bethe described the level density as a non-interacting gas of protons and neutrons. In all these years, experimental data were interpreted within this picture of a fermionic gas. However, the renewed interest of measu
Externí odkaz:
http://arxiv.org/abs/1503.03300
Autor:
Giacoppo, F., Garrote, F. L. Bello, Bernstein, L. A., Bleuel, D. L., Eriksen, T. K., Firestone, R. B., Görgen, A., Guttormsen, M., Hagen, T. W., Kheswa, B. V., Klintefjord, M., Koehler, P. E., Larsen, A. C., Nyhus, H. T., Renstrøm, T., Sahin, E., Siem, S., Tornyi, T.
The nuclear level densities of $^{194-196}$Pt and $^{197,198}$Au below the neutron separation energy have been measured using transfer and scattering reactions. All the level density distributions follow the constant-temperature description. Each gro
Externí odkaz:
http://arxiv.org/abs/1408.6173
Autor:
Guttormsen, M., Larsen, A. C., Garrote, F. L. Bello, Byun, Y., Eriksen, T. K., Giacoppo, F., Görgen, A., Hagen, T. W., Klintefjord, M., Nyhus, H. T., Renstrøm, T., Rose, S. J., Sahin, E., Siem, S., Tornyi, T., Tveten, G. M., Voinov, A.
Particle-$\gamma$ coincidences from the $^{89}$Y($p,p' \gamma$)$^{89}$Y and $^{89}$Y($d,p \gamma$)$^{90}$Y reactions were utilized to obtain $\gamma$-ray spectra as function of excitation energy. The Oslo method was used to extract the level density
Externí odkaz:
http://arxiv.org/abs/1408.5985
Autor:
Giacoppo, F., Garrote, F. L. Bello, Eriksen, T. K., Görgen, A., Guttormsen, M., Hagen, T. W., Larsen, A. C., Kheswa, B. V., Klintefjord, M., Koehler, P. E., Nyhus, H. T., Renstrøm, T., Sahin, E., Siem, S., Tornyi, T. G.
Our measurements of $^{195,196}$Pt $\gamma$-strength functions show a double-humped enhancement in the $E_{\gamma}= 4-8$ MeV region. For the first time, the detailed shape of these resonances is revealed for excitation energies in the quasicontinuum.
Externí odkaz:
http://arxiv.org/abs/1402.2451