English

Surface localization of the dineutron in $^{11}$Li

Nuclear Experiment 2020-12-17 v1

Abstract

The formation of a dineutron in the nucleus 11^{11}Li is found to be localized to the surface region. The experiment measured the intrinsic momentum of the struck neutron in 11^{11}Li via the (p,pn)(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 r3.6r\sim3.6 fm. The results also support the density dependence of dineutron formation as deduced from Hartree-Fock-Bogoliubov calculations for nuclear matter.

Keywords

Cite

@article{arxiv.2010.04802,
  title  = {Surface localization of the dineutron in $^{11}$Li},
  author = {Y. Kubota and A. Corsi and G. Authelet and H. Baba and C. Caesar and D. Calvet and A. Delbart and M. Dozono and J. Feng and F. Flavigny and J. -M. Gheller and J. Gibelin and A. Giganon and A. Gillibert and K. Hasegawa and T. Isobe and Y. Kanaya and S. Kawakami and D. Kim and Y. Kikuchi and Y. Kiyokawa and M. Kobayashi and N. Kobayashi and T. Kobayashi and Y. Kondo and Z. Korkulu and S. Koyama and V. Lapoux and Y. Maeda and F. M. Marqués and T. Motobayashi and T. Miyazaki and T. Nakamura and N. Nakatsuka and Y. Nishio and A. Obertelli and K. Ogata and A. Ohkura and N. A. Orr and S. Ota and H. Otsu and T. Ozaki and V. Panin and S. Paschalis and E. C. Pollacco and S. Reichert and J. -Y. Roussé and A. T. Saito and S. Sakaguchi and M. Sako and C. Santamaria and M. Sasano and H. Sato and M. Shikata and Y. Shimizu and Y. Shindo and L. Stuhl and T. Sumikama and Y. L. Sun and M. Tabata and Y. Togano and J. Tsubota and Z. H. Yang and J. Yasuda and K. Yoneda and J. Zenihiro and T. Uesaka},
  journal= {arXiv preprint arXiv:2010.04802},
  year   = {2020}
}

Comments

19 pages, 4 figures. Accepted for Physical Review Letters