TEMPERATURE DEPENDENCE OF PHYSICAL PSEUDOSCALAR MESON ( h, h^˘ and i) MASSES ALONG WITH THE CONSISTENT MASS MATRIX AND THE UNITARY MATRIX

M. NANDY, S. C. KAR^* and V. P. GAUTAM

Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India
^*Presidency College, Calcutta 700 073, India

Received 12 August 1997

Taking three orthonormal basis states and constructing the Lagrangian, we have obtained the unitary transformation matrix and mass squared matrix of h, h^˘ and i. The temperature dependence of these pseudoscalar meson masses has been studied while getting the value of the mass of one of the basis states h₁ by taking into account the gluon condensate value which yields the pure gluonium mass estimate. Variation of their masses with the temperature has also been studied. The calculations for the radiative decays of these pseudoscalar mesons have also been carried out and the results are encouraging.

UDC 539.126
PACS numbers: 11.30.Rd, 11.40.Ha, 12.39.Mk, 13.40.Hq, 14.40.Aq

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