Study of excited states in Pb-208 by particle-gamma coincidences with the Pb-207(d,p)Pb-208 and Bi-209(t,alpha)Pb-208 reactions

被引：30

作者：

Schramm, M ^{[1
]}

Maier, KH ^{[1
]}

Rejmund, M ^{[1
]}

Wood, LD ^{[1
]}

Roy, N ^{[1
]}

Kuhnert, A ^{[1
]}

Aprahamian, A ^{[1
]}

Becker, J ^{[1
]}

Brinkman, M ^{[1
]}

Decman, DJ ^{[1
]}

Henry, EA ^{[1
]}

Hoff, R ^{[1
]}

Manatt, D ^{[1
]}

Mann, LG ^{[1
]}

Meyer, RA ^{[1
]}

Stoeffl, W ^{[1
]}

Struble, GL ^{[1
]}

Wang, TF ^{[1
]}

机构：

[1] LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA

来源：

PHYSICAL REVIEW C | 1997年 / 56卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.56.1320

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Excited states in Pb-208 have been studied by measuring gamma rays in time coincidence with reaction charged particles. Pb-208 states were produced with both the Pb-207(d,p)Pb-208 and Bi-209(t,alpha)Pb-208 reactions. The energy resolution of the particle spectra of 100 keV allowed a rough determination of level excitation, which then was determined with high resolution from the coincident gamma decay measured in Ge detectors. Many new gamma transitions have been found and previously unresolved multiplets of states resolved. The data give spectroscopic factors for neutron transfer and proton pickup. Spins and parities of levels could be deduced from their gamma decays. A least squares fit of all gamma energies gave very precise (0.1 keV) level energies. All states predicted by the shell model below 4.6 MeV are now found and their spins determined unambiguously.

引用

页码：1320 / 1337

页数：18

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