搜索结果: 1-15 共查到“物理学 contribution”相关记录30条 . 查询时间(0.109 秒)
Investigation of the relative bottomside/topside contribution to the total electron content estimates
bottom side electron content topside electron content ionispheric storm effect
2015/9/25
High-resolution vertical electron density true height profiles from Athens Digisonde are used to calculate the electron content up to the peak of the F 2 layer (bottomside electron content) and also t...
Final state rescattering as a contribution to B->rho gamma
Radiation gamma $$$gamma scattering
2014/12/22
We provide a new estimate of the long-distance component to the radiative transition $B \to \rho \gamma$. Our mechanism involves the soft-scattering of on-shell hadronic products of nonleptonic $B$ de...
Improved determination of the electroweak penguin contribution to epsilon '/epsilon in the chiral limit
Energy opal spectral function and matrix element electroweak penguin operators
2014/12/20
We perform a finite energy sum rule analysis of the flavor ud two-point VA current correlator, (Q2). The analysis, which is performed using both the ALEPH and OPAL databases for the V-A spectral fun...
Understanding Hard Interaction in QCD and the Search for the Gluon Spin Contribution to the Spin of the Proton
asymmetry hadron proton spin
2014/11/20
In the following discourse unpolarized cross sections and double helicity asymmetries of single inclusive positive and negative charged hadrons at mid-rapidity from p + p collisions at p s = 62:4 GeV ...
Leading order hadronic contribution to g-2 from twisted mass QCD
Leading order hadronic g-2 from twisted mass QCD
2011/1/7
We calculate the leading order hadronic contribution to the muon anomalous magnetic moment using twisted mass lattice QCD. The pion masses range from 330 MeV to 650 MeV. We use two lattice spacings, a...
Helicity-dependent reaction \vec γ\vec d\to πNN and its contribution to the GDH sum rule for the deuteron
Helicity-dependent reaction πNN contribution the GDH sum rule the deuteron
2010/12/31
Helicity-dependent incoherent pion photoproduction in the reaction \vec \gamma \vec d\to \pi NN is studied in the framework of the diagrammatic approach. Contributions to the reaction amplitude from d...
Helicity-dependent reaction \vec γ\vec d\to πNN and its contribution to the GDH sum rule for the deuteron
Helicity-dependent reaction πNN contribution the GDH sum rule the deuteron
2010/12/31
Helicity-dependent incoherent pion photoproduction in the reaction \vec \gamma \vec d\to \pi NN is studied in the framework of the diagrammatic approach. Contributions to the reaction amplitude from d...
Horizontal displacements contribution to tsunami wave energy balance
Horizontal displacements tsunami wave energy balance
2010/11/16
The main reason for the generation of tsunamis is the deformation of the bottom of the ocean caused by an underwater earthquake. Usually, only the vertical bottom motion is taken into accound while t...
Arbitrary-order non-linear contribution to self-steepening
Arbitrary-order non-linear self-steepening
2010/11/16
Based on the recently published generalized Miller formula, we derive the spectral dependence of the contribution of arbitrary-order non-linear indices to the group-velocity index. We show that in th...
Contribution of interband effects caused by long-wavelength transverse optical phonons to electron-phonon coupling in doped polar insulators
Contribution of interband effects electron-phonon coupling doped polar insulators
2010/11/22
We estimate the contribution of the long-wavelength el–TO–ph interaction and discuss the effect it has on electron pairing in doped polar systems like SrTiO3 and PbTe. The analytical and numerical res...
Helicity-dependent reaction \vec γ\vec d\to πNN and its contribution to the GDH sum rule for the deuteron
Helicity-dependent reaction \vec γ\vec d\to πNN GDH sum rule deuteron
2011/1/6
Helicity-dependent incoherent pion photoproduction in the reaction ~γ ~d → πNN is studied in the framework of the diagrammatic approach. Contributions to the reaction amplitude from diagrams correspon...
Contribution of adiabatic phases to noncyclic evolution
Berry’s phase adiabatic phase noncyclic adiabatic evolution spin-1/2 model
2010/6/30
We show that the difference of adiabatic phases, that are basis-dependent, in noncyclic evolution of nondegenerate quantum systems have to be taken into account to give the correct interference result...
Hadronic light-by-light scattering contribution to the muon g－2
muon anomalous magnetic moment hadronic contributions effective field
2010/5/7
We review recent developments concerning the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon. We first discuss why fully off-shell hadronic form factors sh...
New results on the hadronic vacuum polarization contribution to the muon g－2
muon magnetic moment vacuum polarization electron-positron annihilation tau decays g－2
2010/5/7
Results on the lowest-order hadronic vacuum polarization contribution to the muon magnetic anomaly are presented. They are based on the latest published experimental data used as input to the dispersi...
Two-Photon-Exchange Contribution to Proton Form Factors in Both Space-Like and Time-Like Regions
two-photon exchange form factor proton
2010/5/7
The two two-photon exchange corrections to the unpolarized cross section and polarized observable
PT, PL in elastic ep scattering are discussed in a simple hadronic model. Comparing with previous res...