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搜索结果: 1-13 共查到positronium相关记录13条 . 查询时间(0.052 秒)
Electron anti-neutrinos are commonly detected in liquid scintillator experiments via inverse beta decay,by looking at the coincidence between the reaction products, neutron and positron. Prior to posi...
Positronium is the atom-like bound state of an electron and its antiparticle the positron – and therefore has no net electrical charge. But physicists in the UK are scratching their heads after findin...
Positronium is an ideal system for the research of QED in the bound state. The hyperfine splitting of positronium (Ps-HFS: about 203 GHz)is a good tool to test QED and also sensitive to new physics be...
Because of small gap between the energy of para-positronium (p-Ps) and ortho-positronium (o-Ps) it was assumed the possibility of the existence of superposition of p-Ps and o-Ps states as a result of...
Interference between different energy eigenstates in a quantum system results in an observable oscillation with a frequency which is proportional to the difference in energy between the states. Such a...
In this paper, we present measurements of the ortho-positronium emission energy in vacuum from mesoporous films using the time of flight technique. We show evidence of quantum mechanical confinement i...
A high-performance positron age-momentum correlation (AMOC) spectrometer was newly developed. The counting rate is increased up to 200 cps much larger than the value 20~cps reported by other internati...
The low-energy scattering of ortho positronium (Ps) by H, He, Ne, and Ar atoms has been investigated in the coupled-channel framework by using a recently proposed timereversal- symmetric nonlocal ele...
2001Vol.36No.1pp.85-90DOI: Calculating the Relativistic Wave Functions of 11S0 and 13S1 Positronium QIN Gan,1,2 WAN Shao-Long,2 HAN Rong-Dian3 and WANG Ke-Lin2 1 CCAST ...
2007Vol.47No.3pp.547-549DOI: Feature of a Confined Positronium Negative Ion by a Spherical Parabolic Potential XIE Wen-Fang Department of Physics, Guangzhou University,G...
2002Vol.38No.5pp.634-636DOI: Energy Spectrum of a Positronium Negative Ion in a Parabolic Quantum Well XIE Wen-Fang Department of Physics, Guangzhou University, Guangzh...
2004Vol.42No.2pp.257-260DOI: A Positronium Molecule Confined in a Two-Dimensional Space Under a Magnetic Field XIE Wen-Fang Department of Physics, Guangzhou University, ...
We develop an adiabatic valence-bond theory of the positronium hydride, HPs, as a heteroisotopic diatomic molecule. Typical heteronuclear ionic behaviour comes out at bonding distances, yielded just b...

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