Low-energy electric dipole response in Sn-120

KRUMBHOLZ, M.; VON NEUMANN-COSEL, P.; Hashimoto, T.; Tamii, A.; Adachi, T.; BERTULANI, C.; Fujita, H.; Fujita, Y.; Ganioglu, Ela; Hatanaka, K.; Iwamoto, C.; Kawabata, T.; Khai, N.; KRUGMANN, A.; MARTIN, D.; Matsubara, H.; Neveling, R.; Okamura, H.; Ong, H.; POLTORATSKA, I.; PONOMAREV, V.; RICHTER, A.; Sakaguchi, H.; Shimbara, Y.; Shimizu, Y.; SIMONIS, J.; SMIT, F.; Susoy, Gülfem; THIES, J.; Suzuki, T.; Yosoi, M.; Zenihiro, J.

doi:10.1016/j.physletb.2015.03.023

Low-energy electric dipole response in Sn-120

Atıf İçin Kopyala

KRUMBHOLZ M., VON NEUMANN-COSEL P., Hashimoto T., Tamii A., Adachi T., BERTULANI C. A., ...Daha Fazla

PHYSICS LETTERS B, cilt.744, ss.7-12, 2015 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 744
Basım Tarihi: 2015
Doi Numarası: 10.1016/j.physletb.2015.03.023
Dergi Adı: PHYSICS LETTERS B
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.7-12
Anahtar Kelimeler: Sn-120(p, p '), E-p=295 MeV, Relativistic Coulomb excitation, E1 strength below neutron threshold, INELASTIC-SCATTERING, STRENGTH FUNCTIONS, NUCLEI, EXCITATIONS, RESONANCE, NEUTRON, MODES
İstanbul Üniversitesi Adresli: Evet

Özet

The electric dipole strength distribution in Sn-120 has been extracted from proton inelastic scattering experiments at E-p = 295 MeV and at forward angles including 0 degrees. It differs from the results of a Sn-120(gamma, gamma ') 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 (gamma, gamma ') reaction. This implies a strong fragmentation of the E1 strength and/or small ground state branching ratios of the excited 1(-) states. (C) 2015 The Authors. Published by Elsevier B.V.