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Is there an isoscalar ''giant'' quadrupole resonance in /sup 12/C

Journal Article · · Phys. Rev. Lett.; (United States)
Apparent discrepancies in the amount of E2 strength located in the giant resonance region of /sup 12/C are resolved by a /sup 12/C(..cap alpha.., ..cap alpha..'c) coincidence experiment at 104 MeV. The summed E2 strengths in the dominant decay channels c = ..cap alpha../sub 0/,..cap alpha../sub 1/, and p/sub 0/ in the range 20 < or = E/sub x/ < or = 30 MeV exhaust less than 15% of the energy-weighted sum rule. So far /sup 12/C is the only investigated nucleus which does not exhibit a giant quadrupole resonance.
Research Organization:
Max-Planck-Institut fuer Kernphysik, D-69 Heidelberg, West Germany
OSTI ID:
6712588
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 41:6; ISSN PRLTA
Country of Publication:
United States
Language:
English