Zobrazeno 1 - 10
of 1 177
pro vyhledávání: '"Siem S."'
Autor:
Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Görgen, A., Korten, W., Ljungvall, J., Clément, E., Dudouet, J., Lemasson, A., Rodríguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., Gerl, J., Georgiev, G., Ivanova, D. P., Jolie, J., Kim, Y. -H., Knafla, L., Korichi, A., Koseoglou, P., Labiche, M., Lalkovski, S., Lauritsen, T., Li, H. -J., Pedersen, L. G., Pietri, S., Ralet, D., Regis, J. M., Rudigier, M., Saha, S., Sahin, E., Siem, S., Singh, P., öderström, P. -A., Theisen, C., Tornyi, T., Vandebrouck, M., Witt, W., Zielińska, M., Barrientos, D., Bednarczyk, P., Benzoni, G., Boston, A. J., Boston, H. C., Bracco, A., Cederwall, B, Ciemala, M., de France, G., Domingo-Pardo, C., Eberth, J., Gadea, A., González, V., Gottardo, A., Harkness-Brennan, L. J., Hess, H., Judson, D. S., Jungclaus, A., Lenzi, S. M., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Napoli, D. R., Nyberg, J., Podolyak, Zs., Pullia, A., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M. D., Sanchis, E., Şenyiğit, M., Siciliano, M., Simpson, J., Sohler, D., Stezowski, O., Valiente-Dobón, J. J., Verney, D.
Publikováno v:
Eur. Phys. J. A (2023) 59:276
The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first $2^+$ state and the increase in the transition strength B(E2; $2_1^\rightarrow 0_1^+$ going from $^{98}$Zr to $^{1
Externí odkaz:
http://arxiv.org/abs/2410.17004
Autor:
Paulsen, W., Li, K. C. W., Siem, S., Ingeberg, V. W., Larsen, A. C., Eriksen, T. K., Berg, H. C., Bjørøen, M. M., Coombes, B. J., Dowie, J. T. H., Furmyr, F. W., Garrote, F. L. B., Gjestvang, D., Görgen, A., Kibédi, T., Markova, M., Modamio, V., Sahin, E., Stuchbery, A. E, Tveten, G. M., Valsdòttir, V. M.
The radiative branching ratio of the Hoyle state is crucial to estimate the triple-$\alpha$ reaction rate in stellar environments at medium temperatures. Knowledge of the $\gamma$-decay channel is critical as this is the dominant radiative decay chan
Externí odkaz:
http://arxiv.org/abs/2406.00397
Autor:
Markova, M., Larsen, A. C., Tveten, G. M., von Neumann-Cosel, P., Eriksen, T. K., Garrote, F. L. Bello, Campo, L. Crespo, Giacoppo, F., Görgen, A., Guttormsen, M., Hadynska-Klek, K., Klintefjord, M., Renstrøm, T., Sahin, E., Siem, S., Tornyi, T. G.
Publikováno v:
Phys. Rev. C 108, 014315 (2023)
The $^{111,112,113}$Sn isotopes have been studied with ($p,d \gamma$), ($p,p^{\prime} \gamma$), and ($d,p \gamma$) reactions to extract the nuclear level densities (NLDs) and $\gamma$-ray strength functions (GSFs) of these nuclei below the neutron se
Externí odkaz:
http://arxiv.org/abs/2311.08865
Autor:
Markova, M., Larsen, A. C., von Neumann-Cosel, P., Litvinova, E., Choplin, A., Goriely, S., Martinet, S., Siess, L., Guttormsen, M., Pogliano, F., Siem, S.
The $\gamma$-ray strength functions (GSF) and nuclear level densities (NLD) below the neutron threshold have been extracted for $^{111-113,116-122,124}$Sn from particle-$\gamma$ coincidence data with the Oslo method. The evolution of bulk properties
Externí odkaz:
http://arxiv.org/abs/2311.08864
Autor:
Gjestvang D., Siem S., Zeiser F., Randrup J., Vogt R., Bello-Garrote F., Bernstein L.A., Bleuel D.L., Guttormsen M., Görgen A., Larsen A.C., Malatji K.L., Matthews E., Modamio V., Oberstedt A., Oberstedt S., Tornyi T., Tveten G., Voyles A., Wilson J.
Publikováno v:
EPJ Web of Conferences, Vol 256, p 00005 (2021)
The study of prompt fission γ rays (PFGs) is crucial for understanding the energy and angular momentum distribution in fission, and over the last decade there has been an revived interest in this aspect of fission. We present the new experimental se
Externí odkaz:
https://doaj.org/article/42185094c7e7433a90ec55a6db4306c3
Autor:
Li, K. C. W., Neveling, R., Adsley, P., Fujita, H., Papka, P., Smit, F. D., Brümmer, J. W., Donaldson, L. M., Harakeh, M. N., Kokalova, Tz., Nikolskii, E., Paulsen, W., Pellegri, L., Siem, S., Wiedeking, M.
Recent measurements indicate that the previously established upper limit for the $\gamma$-decay branch of the $3_{1}^{-}$ resonance in $^{12}\textrm{C}$ at $E_{x} = 9.641(5)$ MeV may be incorrect. As a result, the $3_{1}^{-}$ resonance has been sugge
Externí odkaz:
http://arxiv.org/abs/2307.07917
Autor:
Ingeberg, V. W., Siem, S., Wiedeking, M., Choplin, A., Goriely, S., Siess, L., Abrahams, K. J., Arnswald, K., Garrote, F. Bello, Bleuel, D. L., Cederkäll, J., Christoffersen, T. L., Cox, D. M., De Witte, H., Gaffney, L. P., Görgen, A., Henrich, C., Illana, A., Jones, P., Kheswa, B. V., Kröll, T., Majola, S. N. T., Malatji, K. L., Ojala, J., Pakarinen, J., Rainovski, G., Reiter, P., von Schmid, M., Seidlitz, M., Tveten, G. M., Warr, N., Zeiser, F.
Proton-$\gamma$ coincidences from $(\mathrm{d},\mathrm{p})$ reactions between a $^{66}\mathrm{Ni}$ beam and a deuterated polyethylene target have been analyzed with the inverse-Oslo method to find the nuclear level density (NLD) and $\gamma$-ray stre
Externí odkaz:
http://arxiv.org/abs/2307.07153
Autor:
Larsen, A. C., Tveten, G. M., Renstrøm, T., Utsunomiya, H., Algin, E., Ari-izumi, T., Ay, K. O., Garrote, F. L. Bello, Campo, L. Crespo, Furmyr, F., Goriely, S., Görgen, A., Guttormsen, M., Ingeberg, V. W., Kheswa, B. V., Kullmann, I. K. B., Laplace, T., Lima, E., Markova, M., Midtbø, J. E., Miyamoto, S., Mjøs, A. H., Modamio, V., Ozgur, M., Pogliano, F., Riemer-Sørensen, S., Sahin, E., Shen, S., Siem, S., Spyrou, A., Wiedeking, M.
Publikováno v:
Phys. Rev. C 108, 025804 (2023)
In this work, we present new data on the $^{182,183,184}$W($\gamma,n$) cross sections, utilizing a quasi-monochromatic photon beam produced at the NewSUBARU synchrotron radiation facility. Further, we have extracted the nuclear level density and $\ga
Externí odkaz:
http://arxiv.org/abs/2301.13301
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:
Guttormsen M., Larsen A. C., Midtbø J. E., Crespo Campo L., Görgen A., Ingeberg V. W., Renstrøm T., Siem S., Tveten G. M., Zeiser F., Kirsch L. E.
Publikováno v:
EPJ Web of Conferences, Vol 178, p 06001 (2018)
Statistical γ-decay from highly excited states is determined by the nuclear level density (NLD) and the γ-ray strength function (γSF). These average quantities have been measured for several nuclei using the Oslo method. For the first time, we exp
Externí odkaz:
https://doaj.org/article/0bdde19b67014b94801d58bfe1974922