测量200至800兆电子伏特下2H的格拉西莫夫-德雷尔-赫恩被积函数
Measurement of the Gerasimov-Drell-Hearn Integrand for 2H from 200 to 800 MeV.
作者信息
Ahrens J, Altieri S, Annand J R M, Arends H-J, Beck R, Bradtke C, Braghieri A, d'Hose N, Dutz H, Goertz S, Grabmayr P, Hasegawa S, Heid E, Holvoet H, Van Hoorebeke L, Horikawa N, Iwata T, Jahn O, Jennewein P, Klein F, Kondratiev R, Lang M, Lannoy B, Lisin V, Martinez-Fabregate M, McGeorge J C, Meyer W, Panzeri A, Pedroni P, Pinelli T, Preobrajenski I, Reicherz G, Rohlof Ch, Rosner G, Rost M, Rostomyan T, Ryckbosch D, Schumacher M, Seitz B, Tamas G, Thomas A, Van de Vyver R, Zapadtka F
机构信息
Institut für Kernphysik, Universität Mainz, D-55099 Mainz, Germany.
出版信息
Phys Rev Lett. 2006 Nov 17;97(20):202303. doi: 10.1103/PhysRevLett.97.202303.
A measurement of the helicity dependence of the total inclusive photoabsorption cross section on the deuteron was carried out at MAMI (Mainz) in the energy range 200<Egamma<800 MeV. The experiment used a 4pi detection system, a circularly polarized tagged photon beam and a frozen-spin target which provided longitudinally polarized deuterons. The contribution to the Gerasimov-Drell-Hearn sum rule for the deuteron determined from the data is 407+/-20(stat)+/-24(syst) mu b for 200<Egamma<800 MeV.
在美因茨的MAMI装置上，在200<Eγ<800 MeV的能量范围内，对氘核上总全吸收光吸收截面的螺旋度依赖性进行了测量。该实验使用了一个4π探测系统、一个圆偏振标记光子束和一个提供纵向极化氘核的冻结自旋靶。根据数据确定的氘核对盖拉西莫夫-德雷尔-赫恩求和规则的贡献，在200<Eγ<800 MeV时为407±20（统计）±24（系统）微靶。
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