379 citations · 2.2k across the 110 of their papers we have counts for
6 papers · 2 filters
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…
Generalized top-spin analysis and new physics in collisions with beam polarization
B. Ananthanarayan, Jayita Lahiri, Monalisa Patra +1
A generalized top-spin analysis proposed some time ago in the context of Standard Model and subsequently studied in varying contexts is now applied primarily to the case of $e^+e^-…
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…
Consistency tests of AMPCALCULATOR and chiral amplitudes in SU(3) Chiral Perturbation Theory: A tutorial based approach
B. Ananthanarayan, Diganta Das, I. Sentitemsu Imsong
Ampcalculator is a Mathematica based program that was made publicly available some time ago by Unterdorfer and Ecker. It enables the user to compute several processes at one-loop (…
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)…
Constraining Form Factors with the Method of Unitarity Bounds
B. Ananthanarayan, Irinel Caprini
The availability of a reliable bound on an integral involving the square of the modulus of a form factor on the unitarity cut allows one to constrain the form factor at points insi…