TY  - JOUR
AU  - Mathieu, V.
AU  - Vento, V.
PY  - 2010
DA  - 2010//
TI  - eta-eta ' mixing in the flavor basis and large N
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 314
EP  - 318
VL  - 688
IS  - 4-5
PB  - Elsevier Science Bv
KW  - Meson
KW  - Mixing
AB  - The mass matrix for eta-eta' is derived in the flavor basis at O(p(4)) of the chiral Lagrangian using the large N approximation. Under certain assumptions, the mixing angle phi = 41.4 degrees and the decay constants ratio f(K)/f(pi) = 1.15 are calculated in agreement with the data. It appears that the FKS scheme arises as a special limit of the chiral Lagrangian. Their mass matrix is obtained without the hypothesis on the mixing pattern of the decay constants.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1003.2119
UR  - https://doi.org/10.1016/j.physletb.2010.04.021
DO  - 10.1016/j.physletb.2010.04.021
LA  - English
N1  - ISI:000278242600012
ID  - Mathieu+Vento2010
ER  -