Theory of unitarity bounds and low-energy form factors

Stringent constraints on the scalar K$ \pi$ form factor from analyticity, unitarity and low-energy theorems

(2010) Gauhar Abbas et al.   EUROPEAN PHYSICAL JOURNAL A

Improved bounds on the radius and curvature of the K$ \pi$ scalar form factor and implications to low-energy theorems

(2009) Gauhar Abbas et al.   EUROPEAN PHYSICAL JOURNAL A

New constraints on the pion EM form factor using $ \Pi^ \prime_{}$ (- Q2)

(2009) Gauhar Abbas et al.   EUROPEAN PHYSICAL JOURNAL A

Constraining the low-energy pion electromagnetic form factor with space-like and phase of time-like data

(2009) B. Ananthanarayan et al.   EUROPEAN PHYSICAL JOURNAL C

Model-independent description ofB→πlνdecays and a determination of|Vub|

(2009) Claude Bourrely et al.   PHYSICAL REVIEW D

Constraining the low-energy pion electromagnetic form factor with spacelike data

(2008) B. Ananthanarayan et al.   EUROPEAN PHYSICAL JOURNAL C