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Single Crystal Sapphire at milli-Kelvin Temperatures: Observation of Electromagnetically Induced Thermal Bistability in High Q-factor Whispering Gallery Modes
Single Crystal Sapphire milli-Kelvin Temperatures: Observation of Electromagnetically Induced Thermal Bistability High Q-factor Whispering Gallery Modes
2010/10/21
Resonance modes in single crystal sapphire ( -Al2O3) exhibit extremely high electrical and me-
chanical Q-factors ( 109 at 4K), which are important characteristics for electromechanical ex-periments...
Time-like proton form factor measurement with PANDA
electromagnetic form factors nuclear structure FAIR PANDA
2009/11/24
The electromagnetic probe is an excellent tool to investigate the structure of the nucleon. The nearly 4π detector PANDA, will allow to make a precise determination of the electromagnetic form factors...
The Pion Electromagnetic Form Factor in the Meson Cloud Model
The Pion Electromagnetic Form Factor the Meson Cloud Model
2010/10/19
In this work we calculate the meson cloud effects on the pion electromagnetic form factor and perform a comparison with experimental data. We show that, even though the cloud is not the only non-pertu...
Frame Dependence of the Pair Contribution to the Pion Electromagnetic Form Factor in a Light-Front Approach
Frame Dependence the Pair Contribution the Pion Electromagnetic Form Factor a Light-Front Approach
2010/10/28
The frame dependence of the pair-term contribution to the electromagnetic form factor of the pion is studied within the Light Front approach. A symmetric ansatz for the pion Bethe-Salpeter amplitude w...