Depletion of the2f7/2neutron hole state in207Pb

• DOI: 10.1103/physrevc.55.3152
• Publication Date: 2002-07-26T20:48:47Z
• Authors: M. Matoba; K. Yamaguchi; K. Kurohmaru; O. Iwamoto; Susilo Widodo; A. Nohtomi; Y. Uozumi; T. Sakae; N. Koori; T. Maki; M. Nakano
• Keywords: 0103 physical sciences; 01 natural sciences

Spectroscopic factors of six low-lying neutron hole states in ${}^{207}\mathrm{Pb}$ were measured with a $(p,d)$ reaction at 65 MeV. The results are compared with previous $(p,d)$ reaction data as well as recent escape width ones of isobaric analog states in ${}^{208}\mathrm{Bi}$ into the neutron hole states in ${}^{207}\mathrm{Pb}.$ The spectroscopic factor for the ${2f}_{7/2}$ hole state shows a strong quenching (about 50% of the sum-rule limit), which suggests the existence of considerable strengths in higher excitation energy region. The appearance of the fragmentation or quenching in neutron hole strength distribution observed in the $2p\ensuremath{-}1f$ and $3p\ensuremath{-}2f$ shell regions is discussed.