Properties of the tensor mesonsf₂(1270) andf'₂(1525)

Abstract

In the f 2 (1270)-f 2 (1525) mixing framework, the isoscalar singlet-octet mixing angle for the 1 3 P 2 tensor nonet is determined to have the value of 27.5 • and the decays of the two states are investigated. Comparing the predicted results of the decays of the two states with the available experimental data, we find that the predicted results based on this simple mixing picture are in good agreement with the experimental data, which show that the f 2 (1270) and f 2 (1525) wavefunctions do not need other components such as glueballs or the 2 3 P 2 , 3 3 P 2 , . . . , qq.

Two-photon and one-photon–one-vector meson decay widths of thef0(1370),f2(1270)Branz1, Geng2, Oset3 2010Phys. Rev. D476300View full textAdd to dashboardCite

“…In Table VI, we compare our result with data and those obtained in other approaches. It is clear that our result lies within the experimental bounds while those of the effective field approach (EF) [65] and the two-state mixing scheme (TMS) [45] are slightly larger than the experimental upper limit, with the latter being almost at the upper limit. Given the fact that we have no free parameters in this calculation, such an agreement is reasonable.…”

Regarding the axial-vector mesons

“…Considering the fact that the f ′ 2 (1525) is an almost pure ss state [20], we obtain the estimated mass of the 1 P 1 ss state from the following relation given by NRCQM [8] M ss(…”

Towards the assignment for the4S01meson nonet

“…In the nn and ss basis, the mass-squared matrix describing the η(2100) and η(2225) mixing can be written as [33,34]…”