https://doi.org/10.1140/epja/i2018-12584-4
Regular Article - Theoretical Physics
Determination of f0 - a0 0 mixing angle from QCD sum rules
Department of Physics, Middle East Technical University, 06800, Ankara, Turkey
* e-mail: taliev@metu.edu.tr
Received:
26
July
2018
Accepted:
11
August
2018
Published online:
12
September
2018
By assuming that the and
mesons are mixed states of the two-quark-tetraquark, the mixing angle between them is estimated within the QCD sum rules method, and it is obtained that the mixing angle is
. Our prediction on the mixing angle can be checked in further experiments which can shed light on choosing the “right” structure of
and
mesons.
© SIF, Springer-Verlag GmbH Germany, part of Springer Nature, 2018