Evidence for {open_quotes}Magnetic Rotation{close_quote}{close_quote} in Nuclei: Lifetimes of States in the M1 bands of {sup 198,199}Pb

Journal Article · Sat Mar 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.1868· OSTI ID:475698

Clark, R; Asztalos, S; Deleplanque, M; Diamond, R; Fallon, P; Kruecken, R; Lee, I; Macchiavelli, A; MacLeod, R; Schmid, G; Stephens, F; Vetter, K ^[1]; Baldsiefen, G; Huebel, H ^[2]; Becker, J; Bernstein, L ^[3]; Hibbert, I; Wadsworth, R ^[4]; Frauendorf, S ^[5]

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1. Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)
2. Institut fuer Strahlen- und Kernphysik, Universitaet Bonn, Nussallee 14-16 D-53115 Bonn (Germany)
3. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
4. Department of Physics, University of York, Heslington, York, YO1 5DD (United Kingdom)
5. Institut fuer Kern- und Hadronenphysik, Forschungszentrum Rossendorf, PF 510119, D-01314 Dresden (Germany)

Lifetimes of states in four of the M1 bands in {sup 198,199}Pb have been determined through a Doppler-shift attenuation method measurement performed using the Gammasphere array. The deduced B(M1) values, which are a sensitive probe of the underlying mechanism for generating these sequences, show remarkable agreement with tilted axis cranking (TAC) calculations. The results represent clear evidence for a new concept in nuclear excitations: {open_quotes}magnetic rotation.{close_quote}{close_quote} {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098; W-7405-ENG-48
• OSTI ID: 475698
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR MOMENTUM
ATTENUATION
DEFORMATION
DOPPLER EFFECT
EXCITATION
LEAD 198
LEAD 199
LIFETIME
M1-TRANSITIONS
MAGNETIC DIPOLES
MAGNETIC FIELDS
ROTATION