Surface Localization of the Dineutron in ^{11}Li.

Yuki Kubota ,Y Maeda,C Caesar,M Dozono,J Zenihiro,V Lapoux,J Tsubota,A Giganon,Y Kondo,J Yasuda,N Nakatsuka,Y Nishio,A Ohkura,S Ota,Y Togano,J.-Y Roussé,J Gibelin,S Reichert,C Santamaria,A Gillibert,A Delbart,Z Korkulu,M Sasano,L Stuhl,M Shikata,M Tabata,T Ozaki,A Corsi,T Isobe,H Baba,D Calvet,A Obertelli,D Kim,K Hasegawa,Y Shimizu,Y Shindo,T Kobayashi,K Yoneda,S Koyama,T Sumikama,T Uesaka,H Otsu,F Flavigny,S Paschalis,V Panin,J.-M Gheller,T Motobayashi,G Authelet,N Kobayashi,Kazuyuki Ogata ,N A Orr ,Satoshi Sakaguchi ,Y Sun ,Z Yang ,Hiromi Sato ,Satoshi Kawakami ,Mariko Kobayashi ,E C Pollacco ,Takashi Nakamura ,M Šako ,A Saito ,Yoshio Kanaya ,Yasushi Kiyokawa ,Takamichi Miyazaki ,Jinhui Feng ,F M Marqués ,Yoshihiro Kikuchi

doi:10.1103/physrevlett.125.252501

Surface Localization of the Dineutron in ^{11}Li.

Yuki Kubota , Y Maeda + Show 65 more

Open Access

https://doi.org/10.1103/physrevlett.125.252501

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Journal: Physical Review Letters	Publication Date: Dec 16, 2020
Citations: 41

Affiliation: RIKEN Nishina Center, The University of Tokyo, University of Miyazaki, Technical University of Darmstadt, Atomic Energy and Alternative Energies Commission, Institut Polytechnique de Paris, CEA Saclay, University of Paris-Saclay, Institut de Recherche sur les Lois Fondamentales de l'Univers, Tokyo Institute of Technology, Kyushu University, Kyoto University, French National Centre for Scientific Research, École Nationale Supérieure d'Ingénieurs de Caen, Université de Caen Normandie, Technical University of Munich, Institute for Basic Science, HUN-REN Institute for Nuclear Research, Hungarian Academy of Sciences, Tohoku University, RIKEN, Pioneer (Japan), University of Paris-Sud, Osaka City University, Osaka University, Peking University, National Institute of Technology, Tokuyama College

#Calculations For Nuclear Matter #Knockout Reaction + Show 7 more

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Abstract

The formation of a dineutron in the ^{11}Li nucleus is found to be localized to the surface region. The experiment measured the intrinsic momentum of the struck neutron in ^{11}Li via the (p,pn) knockout reaction at 246 MeV/nucleon. The correlation angle between the two neutrons is, for the first time, measured as a function of the intrinsic neutron momentum. A comparison with reaction calculations reveals the localization of the dineutron at r∼3.6 fm. The results also support the density dependence of dineutron formation as deduced from Hartree-Fock-Bogoliubov calculations for nuclear matter.

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