EPJ Web of Conferences (Jan 2019)

Measurement of proton-distribution radii of neutron-rich nitrogen isotopes

  • Bagchi Soumya,
  • Kanungo Rituparna,
  • Horiuchi Wataru,
  • Hagen Gaute,
  • Morris Titus D.,
  • Stroberg Steven Ragnar,
  • Suzuki Toshio,
  • Ameil Frederic,
  • Atkinson Joel,
  • Ayyad Yassid,
  • Cortina-Gil Dolores,
  • Dillmann Iris,
  • Estradé Alfredo,
  • Evdokimov Alexey,
  • Farinon Fabio,
  • Geissel Hans,
  • Guastalla Giulia,
  • Janik Rudolf,
  • Kaur Satbir,
  • Knöbel Ronja,
  • Kurcewicz Jan,
  • Litvinov Yury,
  • Marta Michele,
  • Mostazo Magdalena,
  • Mukha Ivan,
  • Nociforo Chiara,
  • Ong Hooi Jin,
  • Pietri Stephane,
  • Prochazka Andrej,
  • Scheidenberger Christoph,
  • Sitar Branislav,
  • Strmen Peter,
  • Takechi Maya,
  • Tanaka Junki,
  • Tanaka Yoshiki,
  • Tanihata Isao,
  • Terashima Satoru,
  • Vargas Jossitt,
  • Weick Helmut,
  • Winfield John Stuart

DOI
https://doi.org/10.1051/epjconf/201922301003
Journal volume & issue
Vol. 223
p. 01003

Abstract

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Measurement of root-mean-square radii of proton distributions of 17–22N from charge-changing cross section shows the emergence of thick neutron skin towards the neutron-drip line. Signature of N = 14 shell gap has been found in nitrogen isotopes along with the emergence of neutron halo in 22N. The measured radii are in good agreement with the shell model calculations.