NCTS (South)


DATE2009-11-19

TIME16:10

PLACER203, 2F, NCTS, NCKU

FIELDParticle

SPEAKER Prof. Chung-Wen Kao(高崇文) - 中原大學物理系

TITLEOpen the box to find strange thing!

ABSTRACTThe strangeness of the proton is one important property revealing the inner structure of the proton and provide restricted test for many models of quarks because it is deeply relating with the dynamics of QCD. Recently there are four parity-violating ep elastic scattering experiments aimed to extract it. We find the previous estimate of the radiative correction, in particular the so-called box two-boson exchange diagrams, is seriously overestimated. I will present our recent result and discussing he impact of the box diagrams in extracting the strangeness of the proton. Reference: arXiv:0708.4297; arXiv:0811.3539; arXiv:0903.1098; arXiv:0910.3307