Sensitivity of deeply bound pionic atoms on the neutron skin
1990; Elsevier BV; Volume: 249; Issue: 3-4 Linguagem: Inglês
10.1016/0370-2693(90)91004-u
ISSN1873-2445
AutoresH. Toki, S. Hirenzaki, Y. Yamazaki,
Tópico(s)Atomic and Molecular Physics
ResumoA theoretical study is done to see how the properties of deeply bound pionic atoms depend on the neutron skin. With increased neutron skin, the strong isovector part of the pion-nucleus optical potential helps developing a repulsive bump at the nuclear surface which pushes the pionic wave function further out and decreases the binding energy. With further increase of the neutron skin, the repulsive potential in the central part is reduced and an inner component of the wave function develops in the nuclear interior, and ultimately a pion bounds state of large width is formed in the deeper interior for Rn−Rp⩾ 0.35 fm.
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