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Przejdź do strony domowej biblioteki Pedagogiczna Biblioteka Wojewódzka im. Komisji Edukacji Narodowej w Lublinie Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaPedagogiczna Biblioteka Wojewódzka im. Komisji Edukacji Narodowej w Lublinie
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Wyświetlanie 1-10 z 126
Tytuł:
Search for ${\eta }$-mesic nuclei in $^{12}C(p, dp)$ reaction with the WASA detector at GSI-FRS
Autorzy:
Kazantseva, E.
Khreptak, Aleksander
Weick, H.
Kavatsyuk, M.
Nakagawa, M.
Szczepanczyk, B.
Yamamoto, A.
Rodríguez-Sánchez, J. L.
He, Y.
Skurzok, Magdalena
Brencic, Z.
Kraft-Bermuth, S.
Dickel, T.
Minami, S.
Behr, K.-H.
Metag, V.
Kurz, N.
Tanaka, Y. K.
Harakeh, M. N.
Mukha, I.
Drozd, V.
Kalantar-Nayestanaki, N.
Liu, E.
Escrig, S.
Gao, Y.
Tang, X.
Heggen, H.
Serdyuk, V.
Dubey, S.
Sekiya, R.
Graña González, A.
Morrissey, D. J.
Purushothaman, S.
Fujioka, H.
Goldenbaum, F.
Kasagi, A.
Ong, H. J.
Kollmus, H.
Geissel, H.
Haettner, E.
Kindler, B.
Alibrahim Alfaki, H.
Nociforo, C.
Hornung, C.
Pietri, S.
Schadmand, S.
Streicher, B.
Will, M.
Wimmer, K.
Nanova, M.
Ruber, R.
Tortorelli, N.
Hubbard, N.
Ekawa, H.
Benlliure, J.
Iwasaki, M.
Scheidenberger, C.
Vencelj, M.
Weber, T.
Zhao, J.
Itahashi, K.
Kostyleva, D.
Suzuki, K.
Rocco, E.
Armstrong, M.
Lommel, B.
Amjad, F.
Moskal, Paweł
Feijóo-Fontán, M.
Yanai, A.
Rappold, C.
Roy, P.
Saito, T. R.
Schwarz, P.
Opis:
We conducted an experimental search for η'-mesic nuclei, bound systems of an η' meson and a nucleus, in $^{12}C(p, dp)$ reactions. We measured the missing mass in the (p, d) reaction to obtain the mass spectrum of the reaction product near the η' emission threshold. Forward-emitted deuterons were momentum-analyzed in the FRS of GSI. We installed a nearly 4π detector WASA near the $^{12}C$ target to effectively select formation and decay of the η'-mesic nuclei. We are presently finalizing the analysis.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Studies of three-and four-body hypernuclei with heavy-ion beams, nuclear emulsions and machine learning
Autorzy:
Sugimoto, S.
Yamamoto, A.
Brencic, Z.
Tanaka, Y. K.
Liu, E.
Tang, X.
Dubey, S.
Sekiya, R.
Haettner, E.
Streicher, B.
Wimmer, K.
Saito, N.
Nakazawa, K.
Vencelj, M.
Zhao, J.
Weber, T.
Yanai, A.
Kazantseva, E.
Kavatsyuk, M.
Rodríguez-Sánchez, J. L.
Skurzok, Magdalena
Dickel, T.
Behr, K.-H.
Mukha, I.
Yoshida, J.
Grãna González, A.
Serdyuk, V.
Morrissey, D. J.
Wang, H.
Goldenbaum, F.
Pochodzalla, J.
Kollmus, H.
Schadmand, S.
Kostyleva, D.
Armstrong, M.
Amjad, F.
Muneem, A.
Schwarz, P.
Khreptak, Aleksander
Nakagawa, M.
Kraft-Bermuth, S.
Minami, S.
Yoshimoto, M.
Kurz, N.
Harakeh, M. N.
Drozd, V.
Gao, Y.
Heggen, H.
Knoebel, R.
Kasagi, A.
Ong, H. J.
Geissel, H.
Alibrahim Alfaki, H.
Hornung, C.
Will, M.
Ruber, R.
Tortorelli, N.
Benlliure, J.
Scheidenberger, C.
Rocco, E.
Saito, T. R.
Rappold, C.
Weick, H.
Szczepanczyk, B.
He, Y.
Taki, M.
Kalantar-Nayestanaki, N.
Escrig, S.
Achenbach, P.
Purushothaman, S.
Feijoo-Fontán, M.
Pietri, S.
Nociforo, C.
Hubbard, N.
Ekawa, H.
Itahashi, K.
Suzuki, K.
Moskal, Paweł
Roy, P.
Opis:
Interests on few-body hypernuclei have been increased by recent results of experiments employing relativistic heavy ion beams. Some of the experiments have revealed that the lifetime of the lightest hypernucleus, hypertriton, is significantly shorter than 263 ps which is expected by considering the hypertriton to be a weakly-bound system. The STAR collaboration has also measured the hypertriton binding energy, and the deduced value is contradicting to its formerly known small binding energy. These measurements have indicated that the fundamental physics quantities of the hypertriton such as its lifetime and binding energy have not been understood, therefore, they have to be measured very precisely. Furthermore, an unprecedented Λnn bound state observed by the HypHI collaboration has to be studied in order to draw a conclusion whether or not such a bound state exists. These three-body hypernuclear states are studied by the heavy-ion beam data in the WASA-FRS experiment and by analysing J-PARC E07 nuclear emulsion data with machine learning.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
WASA-FRS experiments in FAIR Phase-0 at GSI
Autorzy:
Yamamoto, A.
Brencic, Z.
Rodríguez-Sánchez, J.L.
Liu, E.
Tang, X.
Dubey, S.
Sekiya, R.
Fujioka, H.
Haettner, E.
Streicher, B.
Wimmer, K.
Nakazawa, K.
Iwasaki, M.
Vencelj, M.
Zhao, J.
Weber, T.
Harakeh, M.N.
Yanai, A.
Kazantseva, E.
Kavatsyuk, M.
Skurzok, Magdalena
Dickel, T.
Behr, K.-H.
Mukha, I.
Yoshida, J.
Serdyuk, V.
Wang, H.
Goldenbaum, F.
Pochodzalla, J.
Kollmus, H.
Schadmand, S.
Kostyleva, D.
Armstrong, M.
Amjad, F.
Muneem, A.
Schwarz, P.
Khreptak, Aleksander
Nakagawa, M.
Kraft-Bermuth, S.
Minami, S.
Kurz, N.
Drozd, V.
Gao, Y.
Heggen, H.
Knoebel, R.
Tanaka, Y.K.
Kasagi, A.
Geissel, H.
González, A.G.
Hornung, C.
Will, M.
Ruber, R.
Tortorelli, N.
Benlliure, J.
Scheidenberger, C.
Rocco, E.
Alfaki, H.A.
Lommel, B.
Rappold, C.
Weick, H.
Szczepanczyk, B.
He, Y.
Metag, V.
Morrissey, D.J.
Kalantar-Nayestanaki, N.
Escrig, S.
Achenbach, P.
Ong, H.J.
Purushothaman, S.
Feijoo-Fontán, M.
Kindler, B.
Pietri, S.
Nociforo, C.
Hubbard, N.
Ekawa, H.
Saito, T.R.
Itahashi, K.
Suzuki, K.
Moskal, Paweł
Roy, P.
Opis:
We have developed a new and unique experimental setup integrating the central part of the Wide Angle Shower Apparatus (WASA) into the Fragment Separator (FRS) at GSI. This combination opens up possibilities of new experiments with high-resolution spectroscopy at forward and measurements of light decay particles with nearly full solid-angle acceptance in coincidence. The first series of the WASA-FRS experiments have been successfully carried out in 2022. The developed experimental setup and two physics experiments performed in 2022 including the status of the preliminary data analysis are introduced.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Interplay between Correlated Electrons and Quantum Phonons in Charge-Ordered and Mott-Insulating Organic Compounds
Autorzy:
Yonemitsu, K.
Maeshima, N.
Tanaka, Y.
Tematy:
78.20.Bh
71.30.+h
71.45.Lr
71.10.Fd
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:
https://bibliotekanauki.pl/articles/1490009.pdf  Link otwiera się w nowym oknie
Opis:
At an early stage of the photoinduced transition from an insulator to a metal in quasi-two-dimensional organic conductors, a coherent motion of electrons is observed in a charge-ordered insulator, but not so far in a Mott insulator. The mechanisms of these different photoinduced charge dynamics are theoretically studied by numerical solutions to the time-dependent Schrödinger equation for exact many-electron-phonon wave functions on small clusters of model systems. We use two-dimensional three-quarter-filled extended Holstein-Hubbard models on anisotropic triangular lattices. For a charge-ordered insulator on a lattice simplified from the structure of $α-\text{(BEDT-TTF)}_2I_3$, we indeed find a low-energy collective electronic motion coupled with quantum phonons even if the energy of photoexcitation is away from this energy. For a Mott insulator on a lattice simplified from the structure of $κ-\text{(BEDT-TTF)}_2X$, however, such a collective motion does not appear, and quantum phonons are hardly excited.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tsai-Type Quasicrystal and Its Approximant in Au-Al-Tm Alloys
Autorzy:
Tanaka, K.
Tanaka, Y.
Ishimasa, T.
Nakayama, M.
Matsukawa, S.
Deguchi, K.
Sato, N.
Tematy:
61.66.Dk
61.44.Br
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:
https://bibliotekanauki.pl/articles/1373678.pdf  Link otwiera się w nowym oknie
Opis:
A P-type icosahedral quasicrystal with a six-dimensional lattice parameter $a_{6D}$ = 7.411 Å is formed as an equilibrium phase in Au-Al-Tm alloy, of which composition was analyzed to be $Au_{46}Al_{38}Tm_{16}$ by electron probe microanalysis. This quasicrystal is observed as a predominant phase in both as-cast and $Au_{49}Al_{34}Tm_{17}$ alloys annealed at 910°C, and as one of main phases in the alloy slowly cooled from 1020°C. A 1/1 approximant, $Au_{48}Al_{38}Tm_{14}$, is also formed near the composition of the quasicrystal. This is a body-centered cubic structure (space group: Im3̅) with a lattice parameter a = 14.458 Å that is an isostructure to the recently reported 1/1 Tsai-type approximant in Au-Al-Yb. This approximant is characterized by disorderly arranged four Au-Al atoms centered at the Tsai-type cluster, presence of atoms at 8c site, and chemical ordering of Au and Al at sites forming a partial triacontahedron.
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 126

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