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Low-energy electric dipole response in Sn-120

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Title
Low-energy electric dipole response in Sn-120
Author(s)
Krumbholz A.M.; von Neumann-Cosel P.; T. Hashimoto; Tamii A.; Adachi T.; Bertulani C.A.; Fujita H.; Fujita Y.; Ganioglu E.; Hatanaka K.; Iwamoto C.; Kawabata T.; Khai N.T.; Krugmann A.; Martin D.; Matsubara H.; Neveling R.; Okamura H.; Ong H.J.; Poltoratska I.; Ponomarev V.Y.; Richter A.; Sakaguchi H.; Shimbara Y.; Shimizu Y.; Simonis J.; Smit F.D.; Susoy G.; Thies J.H.; Suzuki T.; Yosoi M.; Zenihiro J.
Publication Date
2015-05
Journal
PHYSICS LETTERS B, v.744, no., pp.7 - 12
Publisher
ELSEVIER SCIENCE BV
Abstract
The electric dipole strength distribution in 120Sn has been extracted from proton inelastic scattering experiments at Ep=295 MeV and at forward angles including 0°. It differs from the results of a Sn120(γ,γ') experiment and peaks at an excitation energy of 8.3 MeV. The total strength corresponds to 2.3(2)% of the energy-weighted sum rule and is more than three times larger than what is observed with the (γ, γ') reaction. This implies a strong fragmentation of the E1 strength and/or small ground state branching ratios of the excited 1- states. © 2015 The Authors
URI
http://pr.ibs.re.kr/handle/8788114/2930
DOI
10.1016/j.physletb.2015.03.023
ISSN
0370-2693
Appears in Collections:
HiddenCommunity > Journal Papers
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