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001-es BibID:	BIBFORM065099
035-os BibID:	(Scopus)84946866400 (Wos)000364024000002
Első szerző:	Santamaria, C.
Cím:	Extension of the N=40 island of inversion towards N=50: Spectroscopy of 66Cr, 70,72Fe / C. Santamaria, C. Louchart, A. Obertelli, V. Werner, P. Doornenbal, F. Nowacki, G. Authelet, H. Baba, D. Calvet, F. Château, A. Corsi, A. Delbart, J.-M. Gheller, A. Gillibert, T. Isobe, V. Lapoux, M. Matsushita, S. Momiyama, T. Motobayashi, M. Niikura, H. Otsu, C. Péron, A. Peyaud, E. C. Pollacco, J.-Y. Roussé, H. Sakurai, M. Sasano, Y. Shiga, S. Takeuchi, R. Taniuchi, T. Uesaka, H. Wang, K. Yoneda, F. Browne, L. X. Chung, Zs. Dombradi, S. Franchoo, F. Giacoppo, A. Gottardo, K. Hadynska-Klek, Z. Korkulu, S. Koyama, Y. Kubota, J. Lee, M. Lettmann, R. Lozeva, K. Matsui, T. Miyazaki, S. Nishimura, L. Olivier, S. Ota, Z. Patel, N. Pietralla, E. Sahin, C. Shand, P.-A. Söderström, I. Stefan, D. Steppenbeck, T. Sumikama, D. Suzuki, Zs. Vajta, J. Wu, Z. Xu
Dátum:	2015
ISSN:	0031-9007
Megjegyzések:	We report on the measurement of the first 2+ and 4+ states of 66Cr and 70,72Fe via in-beam ?-ray spectroscopy. The nuclei of interest were produced by (p,2p) reactions at incident energies of 260 MeV/nucleon. The experiment was performed at the Radioactive Isotope Beam Factory, RIKEN, using the DALI2 ?-ray detector array and the novel MINOS device, a thick liquid hydrogen target combined with a vertex tracker. A low-energy plateau of 2+1 and 4+1 energies as a function of the neutron number was observed for N?38 and N?40 for even-even Cr and Fe isotopes, respectively. State-of-the-art shell model calculations with a modified Lenzi-Nowacki-Poves-Sieja (LNPS) interaction in the pfg9/2d5/2 valence space reproduce the observations. Interpretation within the shell model shows an extension of the island of inversion at N=40 for more neutron-rich isotopes towards N=50.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Physical Review Letters 115 : 19 (2015), 192501, p. 1-6. -
További szerzők:	Louchart, C. Obertelli, A. Werner, V. Doornenbal, Pieter Nowacki, F. Authelet, G. Baba, H. Calvet, D. Château, F. Corsi, A. Delbart, A. Gheller, J.-M. Gillibert, A. Isobe, Tadaaki Lapoux, V. Matsushita, Masafumi Momiyama, S. Motobayashi, Tohru Niikura, M. Otsu, Hideaki Péron, C. Peyaud, A. Pollacco, E. C. Roussé, J.-Y. Sakurai, H. Sasano, M. Shiga, Yoshiaki Takeuchi, Satoshi Taniuchi, R. Uesaka, T. Wang, H. Yoneda, K. Browne, Frank Chung, L. X. Dombrádi Zsolt Franchoo, S. Giacoppo, F. Gottardo, A. Hadynska-Klek, K. Korkulu Zeren Koyama, S. Kubota, Yoshiyuki Lee, J. Lettmann, M. Lozeva, R. Matsui, K. Miyazaki, Takafumi Nishimura, Shunji Olivier, L. Ota, S. Patel, Zena Pietralla, N. Şahin, E. Shand, C. Söderström, Pär-Anders Stefan, I. Steppenbeck, David Sumikama, Toshiyuki Suzuki, D. Vajta Zsolt (1985-) (informatikus fizikus) Wu, J. Xu, Z.
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001-es BibID:	BIBFORM065175
035-os BibID:	(Scopus)84959506962 (WoS)000370799800005 (cikkazonosító)024320
Első szerző:	Shiga, Yoshiaki
Cím:	Investigating nuclear shell structure in the vicinity of 78Ni: Low-lying excited states in the neutron-rich isotopes 80,82Zn / Y. Shiga, K. Yoneda, D. Steppenbeck, N. Aoi, P. Doornenbal, J. Lee, H. Liu, M. Matsushita, S. Takeuchi, H. Wang, H. Baba, P. Bednarczyk, Zs. Dombradi, Zs. Fulop, S. Go, T. Hashimoto, M. Honma, E. Ideguchi, K. Ieki, K. Kobayashi, Y. Kondo, R. Minakata, T. Motobayashi, D. Nishimura, T. Otsuka, H. Otsu, H. Sakurai, N. Shimizu, D. Sohler, Y. Sun, A. Tamii, R. Tanaka, Z. Tian, Y. Tsunoda, Zs. Vajta, T. Yamamoto, X. Yang, Z. Yang, Y. Ye, R. Yokoyama, J. Zenihiro
Dátum:	2016
ISSN:	2469-9985 0556-2813 2469-9993
Megjegyzések:	The low-lying level structures of nuclei in the vicinity of 78Ni were investigated using in-beam ?-ray spectroscopy to clarify the nature of the nuclear magic numbers Z=28 and N=50 in systems close to the neutron drip line. Nucleon knockout reactions were employed to populate excited states in 80Zn and 82Zn. A candidate for the 4+1 level in 80Zn was identified at 1979(30) keV, and the lifetime of this state was estimated to be 136+92?67 ps from a line-shape analysis. Moreover, the energy of the 2+1 state in 82Zn is reported to lie at 621(11) keV. The large drop in the 2+1 energy at 82Zn indicates the presence of a significant peak in the E(2+1) systematics at N=50. Furthermore, the E(4+1)/E(2+1) and B(E2;4+1?2+1)/B(E2;2+1?0+g.s.) ratios in 80Zn were deduced to be 1.32(3) and 1.12+80?60, respectively. These results imply that 80Zn can be described in terms of two-proton configurations with a 78Ni core and are consistent with a robust N=50 magic number along the Zn isotopic chain. These observations, therefore, indicate a persistent N=50 shell closure in nuclei far from the line of ? stability, which in turn suggests a doubly magic structure for 78Ni.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Physical Review C. - 93 : 2 (2016), p. 1-6. -
További szerzők:	Yoneda, K. Steppenbeck, David Aoi, Nori Doornenbal, Pieter Lee, J. Liu, H. Matsushita, Masafumi Takeuchi, Satoshi Wang, H. Baba, H. Bednarczyk, Piotr Dombrádi Zsolt Fülöp Zs. Go, Shintaro Hashimoto, Takashi Honma, M. Ideguchi, Eiji Ieki, Kazuo Kobayashi, K. Kondo, Yosuke Minakata, Ryogo Motobayashi, Tohru Nishimura, Daiki Otsuka, T. Otsu, Hideaki Sakurai, H. Shimizu, N. Sohler Dóra Sun, Y. Tamii, Atsushi Tanaka, Ryuki Tian, Z. Tsunoda, Y. Vajta Zsolt (1985-) (informatikus fizikus) Yamamoto, Tetsuya Yang, X. Yang, Z. Ye, Y. Yokoyama, Rin Zenihiro, Juzo
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001-es BibID:	BIBFORM059683
Első szerző:	Shiga, Yoshiaki
Cím:	Persistence of N = 50 shell closure in the vicinity of 78Ni studied by in-beam [gamma]-ray spectroscopy / Yoshiaki Shiga, Ken-ichiro Yoneda, David Steppenbeck, Nori Aoi, Pieter Doornenbal, Jenny Lee, Hongna Liu, Masafumi Matushita, Satoshi Takeuchi, He Wang, Hidetada Baba, Piotr Bednarczyk, Zsolt Dombradi, Zsolt Fulop, Shintaro Go, Takashi Hashimoto, Eiji Ideguchi, Kazuo Ieki, Kota Kobayashi, Yosuke Kondo, Ryogo Minakata, Tohru Motobayashi, Daiki Nisimura, Hideaki Otsu, Hiroyoshi Sakurai, Dora Sohler, Yelei Sun, Atsushi Tamii, Ryuki Tanaka, Zhengyang Tian, Zsolt Vajta, Tetsuya Yamamoto, Xiaofei Yang, Zaihong Yang, Yanlin Ye, Rin Yokoyama, Juzo Zenihiro
Dátum:	2015
Megjegyzések:	In-beam Gamma-ray spectroscopy of nuclei in the vicinity of 78Ni was performed at Radioactive Isotope Beam Factory (RIBF), RIKEN. De-excitation ? rays were detected in coincidence with the reaction residues, including the N = 50 nucleus 80Zn, produced by secondary reactions of radioactive isotopes. The analysis is in progress to study the low-lying excited states in 80Zn.
Tárgyszavak:	Természettudományok Fizikai tudományok konferenciacikk
Megjelenés:	JPS Conference Proceedings. - 6 (2015), p. 030008-1 - 030008-3. -
További szerzők:	Yoneda, Ken-ichiro Steppenbeck, David Aoi, Nori Doornenbal, Pieter Lee, Jenny Liu, Hongna Matushita, Masafumi Takeuchi, Satoshi Wang, He Baba, Hidetada Bednarczyk, Piotr Dombrádi Zsolt Fülöp Zsolt Go, Shintaro Hashimoto, Takashi Ideguchi, Eiji Ieki, Kazuo Kobayashi, Kota Kondo, Yosuke Minakata, Ryogo Motobayashi, Tohru Nisimura, Daiki Otsu, Hideaki Sakurai, Hiroyoshi Sohler Dóra Sun, Yelei Tamii, Atsushi Tanaka, Ryuki Tian, Zhengyang Vajta Zsolt (1985-) (informatikus fizikus) Yamamoto, Tetsuya Yang, Xiaofei Yang, Zaihong Ye, Yanlin Yokoyama, Rin Zenihiro, Juzo
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