BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Neutron-distribution radius from higher moments of nuclear charge 
 distribution
DTSTART:20261009T083000Z
DTEND:20261009T093000Z
DTSTAMP:20261023T132300Z
UID:indico-event-14306@indico.ijclab.in2p3.fr
DESCRIPTION:Speakers: Rika Danjo (Research Center for Accelerator and Radi
 oisotope Science\, Tohoku University\, Sendai\, Japan)\n\nThe nuclear char
 ge density distribution\, $\\rho(r)$\, determined by elastic electron scat
 tering\, provides essential information on nuclear structure. Its moments\
 , $<r_c^n>=\\frac{1}{Z}\\int r^n \\rho_c(r) d^3r$ (Z:atomic number) are al
 so important observables\; in particular\, the fourth moment\, $<r_c^4>$\,
  has recently attracted attention because of its close relation to the neu
 tron distribution radius [1].\nThe fourth moment can be obtained either fr
 om a detailed determination of $\\rho(r)$ or from the Taylor expansion of 
 the form factor\, $F(q)$\, at low momentum transfer.\nFor heavy nuclei\, h
 owever\, Coulomb distortion makes the latter approach difficult. We have t
 herefore developed a new method to extract $<r_c^4>$ from $F(q)$ at low mo
 mentum transfer while taking Coulomb-distortion effects into account [2] .
  Based on this new method\, we conducted an experiment at the low-energy e
 lectron-scattering facility ULQ2 at RARiS\, Tohoku University\, Japan.\nIn
  this talk\, I will present this method\, the ULQ2 experimental program\, 
 and its possible extension to neutron- rich unstable nuclei.\n[1] H. Kuras
 awa and T. Suzuki\, “The nth-order moment of the nuclear charge density 
 and contribution from the neutrons”\, Prog. Theor. Exp. Phys. 2019\, 113
 D01(2019). [2] R.Danjo\, T.Suda\, and T.Suzuki\, “A novel method to det
 ermine the 4th moment of the ²⁰⁸Pb charge density from low-momentum-t
 ransfer electron scattering”\, arXiv:2609.22387v2 [nucl-th].\n\nhttps://
 indico.ijclab.in2p3.fr/event/14306/
LOCATION:100/-1-A900 - Auditorium Joliot Curie (IJCLab)
URL:https://indico.ijclab.in2p3.fr/event/14306/
END:VEVENT
END:VCALENDAR