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Strangeness-changing scalar form factors
Matthias Jamin, Jose Antonio Oller, Antonio Pich
We derive expressions for strangeness-changing scalar form factors, which incorporate known theoretical constraints both at low and high energies. Their leading behaviour in the li…
Light quark masses from scalar sum rules
Matthias Jamin, Jose Antonio Oller, Antonio Pich
In this work, the mass of the strange quark is calculated from QCD sum rules for the divergence of the strangeness-changing vector current. The phenomenological scalar spectral fun…
f_B and f_B_s from QCD sum rules
Matthias Jamin, Bjorn O. Lange
The decay constants of the pseudoscalar mesons B and B_s are evaluated from QCD sum rules for the pseudoscalar two-point function. Recently calculated perturbative three-loop QCD c…