56 citations · 238 across the 14 of their papers we have counts for
6 papers · 1 filter
Model independent bounds on the modulus of the pion form factor on the unitarity cut below the threshold
B. Ananthanarayan, I. Caprini, Diganta Das +1
We calculate upper and lower bounds on the modulus of the pion electro magnetic form factor on the unitarity cut below the inelastic threshold, using as input the phase in the…
The 27-plet contributions to the CP-conserving decays
B. Ananthanarayan, I. Sentitemsu Imsong
We revisit the the rare kaon decays which are of interest specially due to the recent measurements of the charged kaon decay spectra. We compute the contribution of…
Bounds on the spacelike pion electromagnetic form factor from analyticity and unitarity
I. Sentitemsu Imsong, B. Ananthanarayan, Irinel Caprini
We use the recently measured accurate BaBaR data on the modulus of the pion electromagnetic form factor, , up to an energy of 3 GeV, the I=1 -wave phase of the scat…
Spacelike pion form factor from analytic continuation and the onset of perturbative QCD
B. Ananthanarayan, Irinel Caprini, I. Sentitemsu Imsong
The factorization theorem for exclusive processes in perturbative QCD predicts the behavior of the pion electromagnetic form factor at asymptotic spacelike momenta $t(=-Q^2)…
The form factors from analyticity and unitarity
B. Ananthanarayan, I. Caprini, I. Sentitemsu Imsong
We study the shape parameters of the scalar and vector form factors using as input dispersion relations and unitarity for the moments of suitable heavy-light correlators evalu…
The form factors from Analyticity and Unitarity
Gauhar Abbas, B. Ananthanarayan, I. Caprini +1
Analyticity and unitarity techniques are employed to obtain bounds on the shape parameters of the scalar and vector form factors of semileptonic decays. For this purpose w…