Giant monopole resonance strength in {sup 28}Si
- Cyclotron Institute, Texas AM University, College Station, Texas 77843 (United States)
The giant resonance region in {sup 28}Si was studied with inelastic scattering of 240 MeV {alpha} particles at small angles including 0{degree}. The giant resonance peak extended from E{sub x}=12MeV to 35 MeV and E0 strength corresponding to 54{plus_minus}6{percent} of the isoscalar E0 energy weighted sum rule was identified between E{sub x}=11{endash}35MeV with a centroid of 21.5{plus_minus}0.3MeV and an rms width of 5.9{plus_minus}0.2MeV. E2 strength corresponding to 32{plus_minus}5{percent} of the isoscalar E2 sum rule was identified with a centroid of E{sub x}=19.0{plus_minus}0.2MeV and rms width of 1.7{plus_minus}0.2MeV. Elastic scattering was measured from {theta}{sub c.m.}=3{degree} to 47{degree} and optical parameters obtained. Inelastic scattering to states at 1.78, 6.88, 10.2, and 11.1 MeV was measured and deformation lengths and L components extracted. {copyright} {ital 1998} {ital The American Physical Society}
- OSTI ID:
- 570318
- Journal Information:
- Physical Review, C, Vol. 57, Issue 3; Other Information: PBD: Mar 1998
- Country of Publication:
- United States
- Language:
- English
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