We present a comprehensive analysis of form factors for two light pseudo-scalar mesons induced by scalar, vector, and tensor quark operators. The theoretical framework is based on a combination of

# Two-Meson Form Factors in Unitarized Chiral Perturbation Theory. (arXiv:2011.00921v1 [hep-ph])

We present a comprehensive analysis of form factors for two light pseudo-scalar mesons induced by scalar, vector, and tensor quark operators. The theoretical framework is based on a combination of

# Two-Meson Form Factors in Unitarized Chiral Perturbation Theory. (arXiv:2011.00921v1 [hep-ph])

We present a comprehensive analysis of form factors for two light pseudo-scalar mesons induced by scalar, vector, and tensor quark operators. The theoretical framework is based on a combination of

# New method for calculating electromagnetic effects in semileptonic beta-decays of mesons. (arXiv:2009.00459v2 [hep-lat] UPDATED)

We construct several classes of hadronic matrix elements and relate them to the low-energy constants in Chiral Perturbation Theory that describe the electromagnetic effects in the semileptonic beta decay of

# New method for calculating electromagnetic effects in semileptonic beta-decays of mesons. (arXiv:2009.00459v2 [hep-lat] UPDATED)

We construct several classes of hadronic matrix elements and relate them to the low-energy constants in Chiral Perturbation Theory that describe the electromagnetic effects in the semileptonic beta decay of

# New method for calculating electromagnetic effects in semileptonic beta-decays of mesons. (arXiv:2009.00459v2 [hep-lat] UPDATED)

We construct several classes of hadronic matrix elements and relate them to the low-energy constants in Chiral Perturbation Theory that describe the electromagnetic effects in the semileptonic beta decay of

# Deciphering the mechanism of near-threshold $J/\psi$ photoproduction. (arXiv:2009.08345v1 [hep-ph])

The photoproduction of the $J/\psi$ off the proton is believed to deepen our understanding of various physics issues. On the one hand, it is proposed to provide access to the

# Deciphering the mechanism of near-threshold $J/\psi$ photoproduction. (arXiv:2009.08345v1 [hep-ph])

The photoproduction of the $J/\psi$ off the proton is believed to deepen our understanding of various physics issues. On the one hand, it is proposed to provide access to the

# Deciphering the mechanism of near-threshold $J/\psi$ photoproduction. (arXiv:2009.08345v1 [hep-ph])

The photoproduction of the $J/\psi$ off the proton is believed to deepen our understanding of various physics issues. On the one hand, it is proposed to provide access to the