Zobrazeno 1 - 10
of 1 031
pro vyhledávání: '"GUTTORMSEN, M."'
Autor:
Spyrou, A., Richman, D., Couture, A., Fields, C. E., Liddick, S. N., Childers, K., Crider, B. P., DeYoung, P. A., Dombos, A. C., Gastis, P., Guttormsen, M., Hermansen, K., Larsen, A. C., Lewis, R., Lyons, S., Midtbø, J. E., Mosby, S., Muecher, D., Naqvi, F., Palmisano-Kyle, A., Perdikakis, G., Prokop, C., Schatz, H., Smith, M. K., Sumithrarachchi, C., Sweet, A.
Publikováno v:
Nature Communications ( 2024) 15:9608
Massive stars are a major source of chemical elements in the cosmos, ejecting freshly produced nuclei through winds and core-collapse supernova explosions into the interstellar medium. Among the material ejected, long lived radioisotopes, such as 60F
Externí odkaz:
http://arxiv.org/abs/2412.01723
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:
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., Ay, K. O., Ozgur, M., Algin, E., Larsen, A. C., Garrote, F. L. Bello, Berg, H. C., Campo, L. Crespo, Dahl-Jacobsen, T., Furmyr, F. W., Gjestvang, D., Görgen, A., Hagen, T. W., Ingeberg, V. W., Kheswa, B. V., Kullmann, I. K. B., Klintefjord, M., Markova, M., Midtbø, J. E., Modamio, V., Paulsen, W., Pedersen, L. G., Renstrøm, T., Sahin, E., Siem, S., Tveten, G. M., Wiedeking, M.
Publikováno v:
Phys. Rev. C 106, 034314 (2022)
The experimental gamma-ray strength functions (gamma-SFs) of 142,144-151Nd have been studied for gamma-ray energies up to the neutron separation energy. The results represent a unique set of gamma-SFs for an isotopic chain with increasing nuclear def
Externí odkaz:
http://arxiv.org/abs/2204.08852
Autor:
Malatji, K. L., Beckmann, K. S., Wiedeking, M., Siem, S., Goriely, S., Larsen, A. C., Ay, K. O., Garrote, F. L. Bello, Campo, L. Crespo, Görgen, A., Guttormsen, M., Ingeberg, V. W., Jones, P., Kheswa, B. V., von Neumann-Cosel, P., Ozgur, M., Potel, G., Pellegri, L., Renstrøm, T., Tveten, G. M., Zeiser, F.
Publikováno v:
PRC 103 (2021) 014309
The Nuclear Level Densities (NLDs) and the $\gamma$-ray Strength Functions ($\gamma$SFs) of $^{153,155}$Sm have been extracted from (d,p$\gamma$) coincidences using the Oslo method. The experimental NLD of $^{153}$Sm is higher than the NLD of $^{155}
Externí odkaz:
http://arxiv.org/abs/2101.02809
Autor:
Markova, M., von Neumann-Cosel, P., Larsen, A. C., Bassauer, S., Görgen, A., Guttormsen, M., Garrote, F. L. Bello, Berg, H. C., Bjørøen, M. M., Dahl-Jacobsen, T., 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., Zeiser, F.
Publikováno v:
Phys. Rev . Lett. 127, 182501 (2021)
The validity of the Brink-Axel hypothesis, which is especially important for numerous astrophysical calculations, is addressed for 116,120,124Sn below the neutron separation energy by means of three independent experimental methods. The $\gamma$-ray
Externí odkaz:
http://arxiv.org/abs/2012.11956
Strong enhancement of level densities in the crossover from spherical to deformed neodymium isotopes
Autor:
Guttormsen, M., Alhassid, Y., Ryssens, W., Ay, K. O., Ozgur, M., Algin, E., Larsen, A. C., Garrote, F. L. Bello, Campo, L. Crespo, Dahl-Jacobsen, T., Görgen, A., Hagen, T. W., Ingeberg, V. W., Kheswa, B. V., Klintefjord, M., Midtbø, J. E., Modamio, V., Renstrøm, T., Sahin, E., Siem, S., Tveten, G. M., Zeiser, F.
Understanding the evolution of level densities in the crossover from spherical to well-deformed nuclei has been a long-standing problem in nuclear physics. We measure nuclear level densities for a chain of neodymium isotopes $^{142,144-151}$Nd which
Externí odkaz:
http://arxiv.org/abs/2012.01902
Autor:
Mücher, D., Spyrou, A., Wiedeking, M., Guttormsen, M., Larsen, A. C., Zeiser, F., Harris, C., Richard, A. L., Smith, M. K., Görgen, A., Liddick, S. N., Siem, S., Berg, H., Clark, J. A., DeYoung, P. A., Dombos, A. C., Greaves, B., Hicks, L., Kelmar, R., Lyons, S., Owens-Fryar, J., Palmisano, A., Santiago-Gonzalez, D., Savard, G., von Seeger, W. W.
The level density of quantum states in statistical mesoscopic systems is a critical input for various fields of physics, including nuclear physics, nuclear astrophysics, atomic physics and their applications. In atomic nuclei, the level density is a
Externí odkaz:
http://arxiv.org/abs/2011.01071