Spot size is one of the parameters to characterize the performance of a radiographic X-ray source. It determines the degree of blurring due to magnification dir
The electron proton (e-p) instability has been observed in many proton accelerators. It will induce transverse beam size blow-up, cause beam loss and restrict t
In the framework of R-parity violating supersymmetry, we investigate the time dependent CP asymmetry SφKS anomaly of B →φKS decay. When the values of the wea