scholarly journals Electromagnetic form factors of Λ hyperon in the vector meson dominance model

2019 ◽  
Vol 100 (7) ◽  
Author(s):  
Yongliang Yang ◽  
Dian-Yong Chen ◽  
Zhun Lu
Keyword(s):  
Vector Meson ◽  
Form Factors ◽  
Vector Meson Dominance ◽  
Electromagnetic Form Factors ◽  
Dominance Model ◽  
Vector Meson Dominance Model

scholarly journals Isoscalar and isovector kaon form factors from e+e− and τ data

2019 ◽  
Vol 212 ◽  
pp. 03006
Author(s):  
Konstantin Beloborodov ◽  
Vladimir Druzhinin ◽  
Sergey Serednyakov
Keyword(s):  
Vector Meson ◽  
Spectral Function ◽  
Cross Sections ◽  
Relative Phase ◽  
Form Factors ◽  
Experimental Results ◽  
Vector Meson Dominance ◽  
Dominance Model ◽  
Vector Meson Dominance Model ◽  
Model Independent

The recent precise measurements of the e+e−→ KS KL and e+e−→ K+K− cross sections and the hadronic spectral function of the τ−→ K−KS ντ decay are used to extract the isoscalar and isovector electromagnetic kaon form factors and their relative phase in a model independent way. The experimental results are compared with a fit based on the vector-meson-dominance model.

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