搜索结果: 1-13 共查到“物理学 positronium”相关记录13条 . 查询时间(0.14 秒)
Positronium signature in organic liquid scintillators for neutrino experiments
Positronium signature organic liquid scintillators neutrino experiments
2011/1/4
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...
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...
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...
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 Positronium hyperfine splitting with quantum oscillation
QED positronium quantum oscillation
2010/3/16
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...
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...
Calculating the Relativistic Wave Functions of 11S0
and 13S1 Positronium
positronium Bethe-Salpeter equation
2007/8/15
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 ...
Feature of a Confined Positronium Negative Ion by a
Spherical Parabolic Potential
positronium negative ion energy spectrum
2007/8/15
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...
Energy Spectrum of a Positronium Negative Ion
in a Parabolic Quantum Well
(e-e-e+) system energy spectrum
2007/8/15
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...
A Positronium Molecule Confined in a Two-Dimensional Space Under a
Magnetic Field
positronium molecule two-dimensional space
2007/8/15
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,
...
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...