Zobrazeno 1 - 10
of 339
pro vyhledávání: '"Isaak J"'
Autor:
Kleemann, J., Pietralla, N., Friman-Gayer, U., Isaak, J., Papst, O., Prifti, K., Werner, V., Ayangeakaa, A. D., Beck, T., Colò, G., Cortés, M. L., Finch, S. W., Fulghieri, M., Gribble, D., Ide, K. E., James, X. K. -H., Janssens, R. V. F., Johnson, S. R., Koseoglou, P., Krishichayan, Savran, D., Tornow, W.
The $\gamma$ decays of the Isovector Giant Dipole Resonance (GDR) of the deformed nucleus $^{154}$Sm from $2^+_1$-Smekal-Raman and elastic scattering were measured using linearly polarized, quasi-monochromatic photon beams. The two scattering process
Externí odkaz:
http://arxiv.org/abs/2406.19695
Autor:
Isaak, J., Savran, D., Pietralla, N., Tsoneva, N., Zilges, A., Eberhardt, K., Geppert, C., Gorges, C., Lenske, H., Renisch, D.
We have studied the decay pattern of the $J^{\pi} = 1_{4742~\mathrm{keV}}^{-}$ state of $^{88}$Sr to probe its quadrupole-octupole coupled two-phonon structure. In particular, a unique fingerprint to prove the two-phonon nature is the $E2$ decay stre
Externí odkaz:
http://arxiv.org/abs/2311.01132
Autor:
Markova, M., Larsen, A. C., von Neumann-Cosel, P., Bassauer, S., Görgen, A., Guttormsen, M., Garrote, F. L. Bello, Berg, H. C., Bjørøen, M. M., Eriksen, T. K., Gjestvang, D., Isaak, J., Mbabane, M., Paulsen, W., Pedersen, L. G., Pettersen, N. I. J., Richter, A., Sahin, E., Scholz, P., Siem, S., Tveten, G. M., Valsdottir, V. M., Wiedeking, M.
Publikováno v:
Phys. Rev. C 106, 034322 (2022)
Nuclear level densities (NLDs) and $\gamma$-ray strength functions (GSFs) of $^{120,124}$Sn have been extracted with the Oslo method from proton-$\gamma$ coincidences in the ($p,p^{\prime}\gamma)$ reaction. The functional forms of the GSFs and NLDs h
Externí odkaz:
http://arxiv.org/abs/2301.05319
Autor:
Inoue A., Tamii A., Abe K., Adachi S., Aoi N., Asai M., Fukuda M., Gey G., Hashimoto T., Ideguchi E., Isaak J., Kobayashi N., Maeda Y., Makii H., Matsuta K., Mihara M., Miura M., Shima T., Shimizu H., Tang R., Dinh Trong T., Yamaguchi H., Yang L.
Publikováno v:
EPJ Web of Conferences, Vol 184, p 02007 (2018)
Our research goal is to measure the 7Be(d, p) reaction to shed light on the 7Li problem in the Big-Bang Nucleosynthesis. We are developing an unstable 7Be target for a high-resolution measurement of the 7Be(d, p)8Be reaction. We plan to compare two m
Externí odkaz:
https://doaj.org/article/1400bd37925b44db987ff62d1bc6ac92
Autor:
Tamii, A., Pellegri, L., Söderström, P. -A., Allard, D., Goriely, S., Inakura, T., Khan, E., Kido, E., Kimura, M., Litvinova, E., Nagataki, S., von Neumann-Cosel, P., Pietralla, N., Shimizu, N., Tsoneva, N., Utsuno, Y., Adachi, S., Adsley, P., Bahini, A., Balabanski, D., Baret, B., Bekker, J. A. C., Binda, S. D., Boicu, E., Bracco, A., Brandherm, I., Brezeanu, M., Brummer, J. W., Camera, F., Crespi, F. C. L., Dalal, R., Donaldson, L. M., Fujikawa, Y., Furuno, T., Haoning, H., Honda, Y., Gavrilescu, A., Inoue, A., Isaak, J., Jivan, H., Jones, P. M., Jongile, S., Just, O., Kawabata, T., Khumalo, T., Kiener, J., Kleemann, J., Kobayashi, N., Koshio, Y., Kuşoğlu, A., Li, K. C. W., Malatji, K. L., Molaeng, R. E., Motoki, H., Murata, M., Netshiya, A. A., Neveling, R., Niina, R., Okamoto, S., Ota, S., Papst, O., Parizot, E., Petruse, T., Reen, M. S., Ring, P., Sakanashi, K., Sideras-Haddad, E., Siem, S., Spall, M., Suda, T., Sudo, T., Taniguchi, Y., Tatischeff, V., Utsunomiya, H., Wang, H., Werner, V., Wibowo, H., Wiedeking, M., Wieland, O., Xu, Y., Yang, Z. H.
Photo-nuclear reactions of light nuclei below a mass of $A=60$ are studied experimentally and theoretically by the PANDORA (Photo-Absorption of Nuclei and Decay Observation for Reactions in Astrophysics) project. Two experimental methods, virtual-pho
Externí odkaz:
http://arxiv.org/abs/2211.03986
Autor:
Savran, D., Isaak, J., Schwengner, R., Massarczyk, R., Scheck, M., Tornow, W., Battaglia, G., Beck, T., Finch, S. W., Fransen, C., Friman-Gayer, U., Gonzalez, R., Hoemann, E., Janssens, R. V. F., Johnson, S. R., Jones, M. D., Kleemann, J., Krishichayan, Little, D. R., O'Donnell, D., Papst, O., Pietralla, N., Sinclair, J., Werner, V., Wieland, O., Wilhelmy, J.
[Background] Photon strength functions are an important ingredient in calculations relevant for the nucleosynthesis of heavy elements. The relation to the photoabsorption cross section allows to experimentally constrain photon strength functions by i
Externí odkaz:
http://arxiv.org/abs/2208.01938
Autor:
Benouaret N., Beller J., Isaak J., Kelley J.H., Pai H., Pietralla N., Ponomarev V.Yu., Raut R., Romig C., Rusev G., Savran D., Scheck M., Schnorrenberger L., Sonnabend K., Tonchev A.P., Tornow W., Weller H.R., Zweidinger M.
Publikováno v:
EPJ Web of Conferences, Vol 93, p 01044 (2015)
We analysed our experimental recent findings of the dipole response of the odd-mass stable nucleus 205Tl within the quasi-particle phonon model. Using the phonon basis constructed for the neighbouring 204Hg and wave function configurations for 205Tl
Externí odkaz:
https://doaj.org/article/570a8f8ad37e4f45b2c3cf3f5c937b2c
Autor:
Isaak J., Löher B., Savran D., Aumann T., Beller J., Cooper N., Derya V., Duchêne M., Endres J., Fiori E., Kelley J.H., Knörzer M., Pietralla N., Ponomarev V.Yu., Romig C., Scheck M., Scheit H., Silva J., Tonchev A.P., Tornow W., Weller H.R., Werner V., Zilges A., Zweidinger M.
Publikováno v:
EPJ Web of Conferences, Vol 93, p 01048 (2015)
The decay behavior of low-lying dipole states in 140Ce was investigated exploiting the γ3-setup at the HIγS facility using quasi-monochromatic photon beams. Branching ratios of individual excited states as well as average branching ratios to low-ly
Externí odkaz:
https://doaj.org/article/ec894dd1c23f493fa85cbe7f5c179e65
Autor:
Romig C., Beck T., Beller J., Birkhan J., Endres A., Fritzsche M., Gayer U., Glorius J., Isaak J., Mertes L., Pai H., Pietralla N., Ries P., Savran D., Scheck M., Schnorrenberger L., Sonnabend K., Werner V., Zweidinger M.
Publikováno v:
EPJ Web of Conferences, Vol 93, p 01035 (2015)
The method of relative self absorption is based on the technique of nuclear resonance fluorescence measurements. It allows for a model-independent determination of ground-state transition widths, natural level widths, and, consequently, of branching
Externí odkaz:
https://doaj.org/article/65234f409b7e44db8d5cea18df7af707
Autor:
Werner V., Cooper N., Goddard P.M., Humby P., Ilieva R.S., Rusev G., Beller J., Bernards C., Crider B.P., Isaak J., Kelley J.H., Kwan E., Löher B., Peters E.E., Pietralla N., Romig C., Savran D., Scheck M., Tonchev A.P., Tornow W., Yates S.W., Zweidinger M.
Publikováno v:
EPJ Web of Conferences, Vol 93, p 01031 (2015)
A series of photon scattering experiments has been performed on the double-beta decay partners 76Ge and 76Se, in order to investigate their dipole response up to the neutron separation threshold. Gamma-ray beams from bremsstrahlung at the S-DALINAC a
Externí odkaz:
https://doaj.org/article/5bb39d79fa504a938693ac264708903a