Details

Autor(en) / Beteiligte

• Revel, A
• Marqués, F M
• Sorlin, O
• Aumann, T
• Caesar, C
• Holl, M
• Panin, V
• Vandebrouck, M
• Wamers, F
• Alvarez-Pol, H
• Atar, L
• Avdeichikov, V
• Beceiro-Novo, S
• Bemmerer, D
• Benlliure, J
• Bertulani, C A
• Boillos, J M
• Boretzky, K
• Borge, M J G
• Caamaño, M
• Casarejos, E
• Catford, W N
• Cederkäll, J
• Chartier, M
• Chulkov, L
• Cortina-Gil, D
• Cravo, E
• Crespo, R
• Datta Pramanik, U
• Dillmann, I
• Elekes, Z
• Enders, J
• Ershova, O
• Estradé, A
• Farinon, F
• Fraile, L M
• Freer, M
• Galaviz, D
• Geissel, H
• Gernhäuser, R
• Golubev, P
• Göbel, K
• Hagdahl, J
• Heftrich, T
• Heil, M
• Heine, M
• Heinz, A
• Henriques, A
• Ignatov, A
• Johansson, H T
• Jonson, B
• Kahlbow, J
• Kalantar-Nayestanaki, N
• Kanungo, R
• Kelic-Heil, A
• Knyazev, A
• Kröll, T
• Kurz, N
• Labiche, M
• Langer, C
• Le Bleis, T
• Lemmon, R
• Lindberg, S
• Machado, J
• Marganiec, J
• Movsesyan, A
• Nacher, E
• Najafi, M
• Nilsson, T
• Nociforo, C
• Paschalis, S
• Perea, A
• Petri, M
• Pietri, S
• Plag, R
• Reifarth, R
• Ribeiro, G
• Rigollet, C
• Röder, M
• Rossi, D
• Savran, D
• Scheit, H
• Simon, H
• Syndikus, I
• Taylor, J T
• Tengblad, O
• Thies, R
• Togano, Y
• Velho, P
• Volkov, V
• Wagner, A
• Weick, H
• Wheldon, C
• Wilson, G
• Winfield, J S
• Woods, P
• Yakorev, D
• Zhukov, M
• Zilges, A
• Zuber, K

Titel

Strong Neutron Pairing in core+4n Nuclei

Ist Teil von

• Physical review letters, 2018-04, Vol.120 (15), p.152504-152504

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2018

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• The emission of neutron pairs from the neutron-rich N=12 isotones ^{18}C and ^{20}O has been studied by high-energy nucleon knockout from ^{19}N and ^{21}O secondary beams, populating unbound states of the two isotones up to 15 MeV above their two-neutron emission thresholds. The analysis of triple fragment-n-n correlations shows that the decay ^{19}N(-1p)^{18}C^{*}→^{16}C+n+n is clearly dominated by direct pair emission. The two-neutron correlation strength, the largest ever observed, suggests the predominance of a ^{14}C core surrounded by four valence neutrons arranged in strongly correlated pairs. On the other hand, a significant competition of a sequential branch is found in the decay ^{21}O(-1n)^{20}O^{*}→^{18}O+n+n, attributed to its formation through the knockout of a deeply bound neutron that breaks the ^{16}O core and reduces the number of pairs.