Extending the Southern Shore of the Island of Inversion to F28 (CROSBI ID 278150)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Revel, A. ; Sorlin, O. ; Marqués, F. M. ; Kondo, Y. ; Kahlbow, J. ; Nakamura, T. ; Orr, N. A. ; Nowacki, F. ; Tostevin, J. A. ; Yuan, C. X. ; Achouri, N. L. ; Al Falou, H. ; Atar, L. ; Aumann, T. ; Baba, H. ; Boretzky, K. ; Caesar, C. ; Calvet, D. ; Chae, H. ; Chiga, N. ; Corsi, A. ; Crawford, H. L. ; Delaunay, F. ; Delbart, A. ; Deshayes, Q. ; Dombrádi, Z. ; Douma, C. A. ; Elekes, Z. ; Fallon, P. ; Gašparić, Igor ; Gheller, J.-M. ; Gibelin, J. ; Gillibert, A. ; Harakeh, M. N. ; He, W. ; Hirayama, A. ; Hoffman, C. R. ; Holl, M. ; Horvat, A. ; Horváth, Á. ; Hwang, J. W. ; Isobe, T. ; Kalantar-Nayestanaki, N. ; Kawase, S. ; Kim, S. ; Kisamori, K. ; Kobayashi, T. ; Körper, D. ; Koyama, S. ; Kuti, I. ; Lapoux, V. ; Lindberg, S. ; Masuoka, S. ; Mayer, J. ; Miki, K. ; Murakami, T. ; Najafi, M. ; Nakano, K. ; Nakatsuka, N. ; Nilsson, T. ; Obertelli, A. ; de Oliveira Santos, F. ; Otsu, H. ; Ozaki, T. ; Panin, V. ; Paschalis, S. ; Rossi, D. ; Saito, A. T. ; Saito, T. ; Sasano, M. ; Sato, H. ; Satou, Y. ; Scheit, H. ; Schindler, F. ; Schrock, P. ; Shikata, M. ; Shimizu, Y. ; Simon, H. ; Sohler, D. ; Stuhl, L. ; Takeuchi, S. ; Tanaka, M. ; Thoennessen, M. ; Törnqvist, H. ; Togano, Y. ; Tomai, T. ; Tscheuschner, J. ; Tsubota, J. ; Uesaka, T. ; Yang, Z. ; Yasuda, M. ; Yoneda, K. ; SAMURAI21 collaboration
SAMURAI21 collaboration
engleski
Extending the Southern Shore of the Island of Inversion to F28
Detailed spectroscopy of the neutron-unbound nucleus F28 has been performed for the first time following proton/neutron removal from Ne29/F29 beams at energies around 230 MeV/nucleon. The invariant- mass spectra were reconstructed for both the F(*)27+n and F(*)26+2n coincidences and revealed a series of well-defined resonances. A near-threshold state was observed in both reactions and is identified as the F28 ground state, with Sn(F28)=-199(6) keV, while analysis of the 2n decay channel allowed a considerably improved Sn(F27)=1620(60) keV to be deduced. Comparison with shell-model predictions and eikonal-model reaction calculations have allowed spin-parity assignments to be proposed for some of the lower-lying levels of F28. Importantly, in the case of the ground state, the reconstructed F27+n momentum distribution following neutron removal from F29 indicates that it arises mainly from the 1p3/2 neutron intruder configuration. This demonstrates that the island of inversion around N=20 includes F28, and most probably F29, and suggests that O28 is not doubly magic.
Binding energy and masses ; Direct reactions ; Energy levels and level densities ; Models and methods for nuclear reactions ; Rare and new isotopes
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
124 (15)
2020.
152502
6
objavljeno
0031-9007
1079-7114
10.1103/physrevlett.124.152502
Povezanost rada
Fizika
