Chiral Perturbation Theory for Vector Mesons
نویسندگان
چکیده
منابع مشابه
Chiral perturbation theory for vector mesons.
The interactions of , K , and ! vector-mesons with low-momentum , K and pseudoscalar mesons are constrained by chiral symmetry. We derive a heavy vector-meson chiral Lagrangian in which the vector mesons are treated as heavy static matter elds. The unknown couplings of the chiral Lagrangian are further related using the 1=Nc expansion. Chiral perturbation theory is applied to the vector-meson m...
متن کاملQuenched Chiral Perturbation Theory for Vector Mesons
We develop quenched chiral perturbation theory for vector mesons made of light quarks, in the limit where the vector meson masses are much larger than the pion mass. We use this theory to extract the leading nonanalytic dependence of the vector meson masses on the masses of the light quarks. By comparing with analogous quantities computed in ordinary chiral perturbation theory, we estimate the ...
متن کاملChiral Perturbation Theory for Tensor Mesons
Interactions of a2, K ∗ 2 , f2 and f ′ 2 tensor-mesons with low-energy π,K, η, η ′ pseudo-scalar mesons are constrained by chiral symmetry. We derive a chiral Lagrangian of tensor mesons in which the tensor mesons are treated as heavy non-relativistic matter fields. Using 1/Nc counting, we derive relations among unknown couplings of the chiral Lagrangian. Chiral perturbation theory is applied t...
متن کاملChiral Perturbation Theory for All-Staggered Heavy-Light Mesons
In highly improved staggered quark (HISQ) simulations by the HPQCD, MILC, and Fermilab Lattice collaborations, both the light quarks and the charm quark are staggered. We extend chiral perturbation theory for staggered quarks to include such all-staggered heavy-light mesons. We assume that the heavy quark action is sufficiently improved that we may take amQ << 1 (where mQ is the heavy quark mas...
متن کاملStaggered Chiral Perturbation Theory for All-Staggered Heavy-Light Mesons
In HISQ simulations by the MILC and Fermilab Lattice collaborations, both the light quarks and the charm quark are staggered. We extend staggered chiral perturbation theory (S χ PT) to include such all-staggered heavy-light mesons. We assume that the heavy quark action is sufficiently improved that we may take am Q << 1 (where m Q is the heavy quark mass), but also that m Q >> Λ QCD so that a c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1995
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.75.2272