Mixing Effect on the Scalar Glueball Mass in QCD Sum Rules

  • We consider the mass dependence on the mixing between a pure glueball and a normal qq meson in QCD sum rules. In the normal correlation functions, the gluonic current and qq current are assumed to couple to both glueball and qq states. By using the low-energy theorem, we construct a sum rule for the mixing correlation function (the gluonic current and the qq current). Through these relationships and based on the assumption of two states (one glueball and one qq meson) dominance, we find the masses of the 0++ lowest-lying glueball and qq meson.
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Huang Tao, Jin Hongying and Zhang Ailin. Mixing Effect on the Scalar Glueball Mass in QCD Sum Rules[J]. Chinese Physics C, 1999, 23(1): 79-86.
Huang Tao, Jin Hongying and Zhang Ailin. Mixing Effect on the Scalar Glueball Mass in QCD Sum Rules[J]. Chinese Physics C, 1999, 23(1): 79-86. shu
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Received: 1998-06-18
Revised: 1900-01-01
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Mixing Effect on the Scalar Glueball Mass in QCD Sum Rules

    Corresponding author: Huang Tao,
  • Institute of High Energy Physics, CAS, Beijing 100039 China

Abstract: We consider the mass dependence on the mixing between a pure glueball and a normal qq meson in QCD sum rules. In the normal correlation functions, the gluonic current and qq current are assumed to couple to both glueball and qq states. By using the low-energy theorem, we construct a sum rule for the mixing correlation function (the gluonic current and the qq current). Through these relationships and based on the assumption of two states (one glueball and one qq meson) dominance, we find the masses of the 0++ lowest-lying glueball and qq meson.

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