Energy-dependent Ps-He momentum-transfer cross section at low energies

Energy-dependent Ps-He momentum-transfer cross section at low energies
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低能量下依赖于能量的 Ps-He 动量传递截面

DOI:
10.1103/physreva.77.012711
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发表时间:
2008
期刊:
影响因子:
2.9
通讯作者:
J. Paulsen
J. Paulsen
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
J. Engbrecht;M. Erickson;C. Johnson;A. Kolan;A. Legard;S. P. Lund;Matthew Nyflot;J. Paulsen

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接收于2007年6月18日;发表于2008年1月17日电子偶素Ps -He散射为理论和实验提供了为数不多的机会之一,以解决Ps与普通物质的基本相互作用。低于6.8eV的离解能,实验和理论工作一直在努力寻找这种相互作用的强度的一致性,这是通过动量转移截面测量的
Received 18 June 2007; published 17 January 2008Positronium Ps -He scattering presents one of the few opportunities for both theory and experiment totackle the fundamental interactions of Ps with ordinary matter. Below the dissociation energy of 6.8 eV,experimental and theoretical work has struggled to find agreement on the strength of this interaction asmeasured by the momentum-transfer cross section