{"paper":{"title":"Low-energy electric dipole response in 120Sn","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-th"],"primary_cat":"nucl-ex","authors_text":"A. Krugmann, A.M. Krumbholz, A. Richter, A. Tamii, C.A. Bertulani, C. Iwamoto, D. Martin, E. Ganioglu, F.D. Smit, G. Susoy, H. Fujita, H.J. Ong, H. Matsubara, H. Okamura, H. Sakaguchi, I. Poltoratska, J.H. Thies, J. Simonis, J. Zenihiro, K. Hatanaka, M. Yosoi, N.T. Khai, P. von Neumann-Cosel, R. Neveling, T. Adachi, T. Hashimoto, T. Kawabata, T. Suzuki, V.Yu. Ponomarev, Y. Fujita, Y. Shimbara, Y. Shimizu","submitted_at":"2015-02-15T12:08:17Z","abstract_excerpt":"The electric dipole strength in 120Sn has been extracted from proton inelastic scattering experiments at E_p = 295 MeV and at forward angles including 0 degree. Below neutron threshoild it differs from the results of a 120Sn(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."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.04305","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}