Electric dipole response in ¹²⁰Sn

In high-resolution (p̅,p̅) experiments under 0° the complete B(E1) strength distribution can be studied in stable nuclei. At the Research Center of Nuclear Physics in Osaka, Japan, the cross sections and observables for the polarization transfer of E1 and M1 excitations in ¹²⁰Sn were measured for scattering angles Θ = 0° − 4° in an excitation energy range of 5 - 25 MeV. From the present measurement the complete B(E1) strength distribution and the branching ratios of the PDR to the ground state can be extracted. The experimental setup, the principle of backgound subtraction and first results on the E1 strength are presented

11B オヨビ 15N ノ シンブ クウコウ ジョウタイ ノ コウゾウ ト ホウカイ ヨウシキ

京都大学0048新制・論文博士博士(理学)乙第11142号論理博第1414号新制||理||1371(附属図書館)UT51-2003-H804(主査)教授 今井 憲一, 教授 谷森 達, 教授 堀内 昶学位規則第4条第2項該当Doctor of ScienceKyoto UniversityDA

Recent results from LEPS and status of LEPS2

Two high-energy photon beamlines, LEPS and LEPS2, have been operated at SPring-8. In both beamlines, linearly polarized photon beams up to 2.9 GeV produced by laser-induced backward Compton scattering from 8 GeV electrons have been used to study quark-nuclear physics via the photo-production of hadrons. In this article, I present some recent results from LEPS including the coherent ø photoproduction from 4He and γp → π− Δ++ reaction, and report on the current status of the developments of the LEPS2 solenoid spectrometer

Electric dipole response in 120Sn

In high-resolution (p̅,p̅) experiments under 0° the complete B(E1) strength distribution can be studied in stable nuclei. At the Research Center of Nuclear Physics in Osaka, Japan, the cross sections and observables for the polarization transfer of E1 and M1 excitations in ¹²⁰Sn were measured for scattering angles Θ = 0° − 4° in an excitation energy range of 5 - 25 MeV. From the present measurement the complete B(E1) strength distribution and the branching ratios of the PDR to the ground state can be extracted. The experimental setup, the principle of backgound subtraction and first results on the E1 strength are presented