Add to ORKGWe perform a calculation of the isospin and hypercharge vector-current propagators (ΔV33μν(q2) and ΔV88μν(q2)) to two loops in chiral perturbation theory. The analysis is carried out with straight-forward Feynman diagram methods by making appropriate use of external vector sources. Counterterms from the (q6) chiral lagrangian, required to absorb divergences and scale dependence encountered at the two-loop level, are constructed. Our final results are finite, covariant, and scale-independent. Several applications are described, including a comparison of the two-loop isospin vector spectral function with data and the construction of new chiral sum rules
Using quenched and unquenched chiral perturbation theory we compute vector and axial current two-poi...
We calculate the vector and scalar form factors of the pion to two loops in Chiral Perturbation Theo...
Damgaard PH, Hernandez P, Jansen K, Laine M, Lellouch L. Finite-size scaling of vector and axial cur...
We perform a calculation of the isospin and hypercharge vector-current propagators (ΔV33μν(q2) and Δ...
We perform a calculation of the isospin and hypercharge axial vector current propagators [ΔA3μν(q) a...
Two-loop analysis of axial vector current propagators in chiral perturbation theor
The isospin-breaking correlator of the product of flavor octet vector currents, Πμν³⁸(q²)= i∫d4x exp...
A general class of inverse-moment sum rules was previously derived by the authors in a chiral pertur...
A new calculation of the isospin and hypercharge axial-vector current propagators [ ΔA33μν(q2) and Δ...
We reconsider the DMO sum rule in light of our recent two-loop calculations of isospin and hyperchar...
Abstract We calculate vector-vector correlation functions at two loops using partially quenched chir...
Using quenched and unquenched chiral perturbation theory we compute vector and axial current two-poi...
We consider chiral perturbation theory in the meson sector at order $E^6$. In the terminology of the...
The existing Chiral Perturbation Theory (ChPT) calculations at order p6 are reviewed. The principles...
Damgaard PH, Hernandez P, Jansen K, Lellouch L, Laine M. Vector and axial-vector propagators in the ...
Using quenched and unquenched chiral perturbation theory we compute vector and axial current two-poi...
We calculate the vector and scalar form factors of the pion to two loops in Chiral Perturbation Theo...
Damgaard PH, Hernandez P, Jansen K, Laine M, Lellouch L. Finite-size scaling of vector and axial cur...
We perform a calculation of the isospin and hypercharge vector-current propagators (ΔV33μν(q2) and Δ...
We perform a calculation of the isospin and hypercharge axial vector current propagators [ΔA3μν(q) a...
Two-loop analysis of axial vector current propagators in chiral perturbation theor
The isospin-breaking correlator of the product of flavor octet vector currents, Πμν³⁸(q²)= i∫d4x exp...
A general class of inverse-moment sum rules was previously derived by the authors in a chiral pertur...
A new calculation of the isospin and hypercharge axial-vector current propagators [ ΔA33μν(q2) and Δ...
We reconsider the DMO sum rule in light of our recent two-loop calculations of isospin and hyperchar...
Abstract We calculate vector-vector correlation functions at two loops using partially quenched chir...
Using quenched and unquenched chiral perturbation theory we compute vector and axial current two-poi...
We consider chiral perturbation theory in the meson sector at order $E^6$. In the terminology of the...
The existing Chiral Perturbation Theory (ChPT) calculations at order p6 are reviewed. The principles...
Damgaard PH, Hernandez P, Jansen K, Lellouch L, Laine M. Vector and axial-vector propagators in the ...
Using quenched and unquenched chiral perturbation theory we compute vector and axial current two-poi...
We calculate the vector and scalar form factors of the pion to two loops in Chiral Perturbation Theo...
Damgaard PH, Hernandez P, Jansen K, Laine M, Lellouch L. Finite-size scaling of vector and axial cur...