Regarding the axial-vector mesons

  • D. -M. Li
  • B. Ma
  • H. Yu
Original Article

Abstract.

The implications of the f1(1285)-f1(1420) mixing for the K1(3P1)- K1(1P1) mixing angle are investigated. Based on the f1(1285)-f1(1420) mixing angle ∼ 50° suggested from the analysis for a substantial body of data concerning the f1(1420) and f1(1285), the masses of the K1(3P1) and K1(1P1) are determined to be ∼ 1307.35±0.63 MeV and 1370.03±9.69 MeV, respectively, which therefore suggests that the K1(3P1)- K1(1P1) mixing angle is about ±(59.55±2.81)°. Also, it is found that the mass of the h1(1P1) (mostly of s¯) state is about 1495.18±8.82 MeV. Comparison of the predicted results and the available experimental information of the h1(1380) shows that without further confirmation on the h1(1380), the assignment of the h1(1380) as the s¯ member of the 1P1 meson nonet may be premature.

PACS.

14.40.Ev Other strange mesons 12.40.Yx Hadron mass models and calculations 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • D. -M. Li
    • 1
    • 2
  • B. Ma
    • 1
  • H. Yu
    • 2
  1. 1.Department of PhysicsZhengzhou UniversityZhengzhou, HenanPRC
  2. 2.Institute of High Energy PhysicsChinese Academy of SciencesBeijingPRC

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