搜索结果: 1-6 共查到“电子物理学 positronium”相关记录6条 . 查询时间(0.062 秒)
Neutral positronium scatters like a charged particle（图）
Neutral positronium a charged particle
2010/11/30
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...
How long it takes para-positronium AND ortho-positronium to become para-positronium OR ortho-positronium? Decoherence of positronium in a matter
para-positronium AND ortho-positronium para-positronium ortho-positronium
2010/11/11
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...
Measurement of the ortho-positronium confinement energy in mesoporous thin films
ortho-positronium mesoporous thin films
2010/3/15
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...
Positronium annihilation in silica aerogel studied by a positron age-momentum correlation technique
positron age-momentum correlation positronium formation positron states silica aerogel
2009/8/14
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...
Heteroisotopic molecular behavior. The Valence-Bond Theory of the Positronium Hydride
Heteroisotopic molecular behavior The Valence-Bond Theory the Positronium Hydride
2010/10/26
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...