DECAY π<SUP>0</SUP>→2γ IN THE MIT BAG MODEL

LI Bing-An

Chinese Physics C> 1984, Vol. 8> Issue(3) : 279-284

DECAY π⁰→2γ IN THE MIT BAG MODEL

LI Bing-An ^,

Institute of High Energy Physics, Academia Sinica

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Abstract：
In this paper the MIT bag model and wave Packet Method are used to calculate the width of the process π⁰→2γ It is found that m_π→0 is a good approximation. The results are consistent with PCAC. The theoretical value of Γ(π⁰→2γ) is 2.7 times of the experimental value. The deviation is mainly from the calculation of F_π. It is also found that the deviation strongly depends on the equation and the boundary contion of the MIT bag model.

References

[1]	T.Degrand, R. L. Jaffe, H. Johnson, and J. Kiskie, Phys. Rev., D12(1975), 2060[2] J.F. Donoghue and k. Johnson, Phys. Rev., D21(1980), 1975.[3] S.L. Adler, Phys. Rev., 177(1969), 2426.

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LI Bing-An. DECAY π⁰→2γ IN THE MIT BAG MODEL[J]. Chinese Physics C, 1984, 8(3): 279-284.

LI Bing-An. DECAY π⁰→2γ IN THE MIT BAG MODEL[J]. Chinese Physics C, 1984, 8(3): 279-284. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

DECAY π⁰→2γ IN THE MIT BAG MODEL

LI Bing-An ^,

Corresponding author: LI Bing-An,

Institute of High Energy Physics, Academia Sinica

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1984-06-05

Abstract: In this paper the MIT bag model and wave Packet Method are used to calculate the width of the process π⁰→2γ It is found that m_π→0 is a good approximation. The results are consistent with PCAC. The theoretical value of Γ(π⁰→2γ) is 2.7 times of the experimental value. The deviation is mainly from the calculation of F_π. It is also found that the deviation strongly depends on the equation and the boundary contion of the MIT bag model.