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

Abstract
HTML
Reference
Related

PDF

Abstract：
In this paper the MIT bag model and wave Packet Method are used to calculate the width of the process π ⁰→2γ It is found that m _π→0 is a good approximation. The results are consistent with PCAC. The theoretical value of Γ(π ⁰→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.

[1]	BAO Tmurbagan,LIU Guang-Zhou,ZHU Ming-Feng. Properties of hybrid stars in an extended MIT bag model. Chinese Physics C, 2009, 33(5): 340-344.doi:10.1088/1674-1137/33/5/004
[2]	LV Lin-Xia,XIAO Zhen-Jun. Neutral Higgs Effects on Rare Decay B→X_sl⁺l^－in the T2HDM. Chinese Physics C, 2007, 31(8): 708-714.
[3]	DAI Lian-Rong,FU Yao,LIU Zhong-Zuo,WANG Yin,TONG Lei,LI Chun-Ran. Structure of Ξ^*Ω_(0,1/2)Dibaryon. Chinese Physics C, 2006, 30(S2): 271-273.
[4]	PING Rong-Gang,YUAN Chang-Zheng. Baryon Resonance in χ_c0→BBMM Decays. Chinese Physics C, 2006, 30(8): 731-735.
[5]	LU GoNG-Ru,WANG Ru-Min,YANG Ya-Dong. Analysis of the Annihilation Decays B0s,d→J/ψ γ with QCD Factorization. Chinese Physics C, 2005, 29(3): 232-236.
[6]	HUANG Yi-Bin,YAN Mu-Lin,WANG Xiao-Jun. Resummation Study on Decay ρ→ππ in U(2)_L×U(2)_RChiral Theory of Mesons. Chinese Physics C, 2004, 28(4): 340-344.
[7]	LIU Fang,LI Jin,HUANG Yi-Bin,YAN Mu-Lin. ρ-ω Interference in J/ψ-Decays and ρ→π π ^-π ⁰Decay. Chinese Physics C, 2004, 28(3): 239-244.
[8]	BES Callaboration. Decay of the J/ψ to Σ⁰Σ⁰Final State. Chinese Physics C, 2002, 26(2): 93-99.
[9]	Yao Xueyi,Chen Guoming,Chen Gang,Chen Hesheng,Tang Xiaowei. Measurement of Structure Function of τ→π^±2π⁰v. Chinese Physics C, 1999, 23(1): 10-16.
[10]	BES Collaboration. ΛΛ,ΛΛγ and ΛΛπ⁰Productions in J/ψ Decay. Chinese Physics C, 1998, 22(2): 97-105.
[11]	BES Collaboration. Measurement of the Branching Ratios of τ^±→π^±+nπ⁰+ν_τ(n=0,1,2) decays. Chinese Physics C, 1997, 21(3): 193-200.
[12]	BES Collaboration. Experimental Study of f₀(975) in the J/ψ Decays. Chinese Physics C, 1995, 19(4): 289-295.
[13]	Wu Huifang,Song Changliang. The 2νββ Decay Lifetime and the Shell Model Wavefunction in⁸²Se. Chinese Physics C, 1994, 18(4): 366-370.
[14]	LIU Liang-Gang. ρ⁰-ω Mixing Effect in the (ρ⁰,ω)→e⁺e^－Pair Decay. Chinese Physics C, 1993, 17(7): 614-618.
[15]	SONG Xiao-Tong,DAI You-Shan. THE COULOMB DISINTEGRATION CROSS-SECTION AND DECAY RATE OF THE SPIN (0－3/2) ELECTROMAGNETIC BOUND SYSTEM. Chinese Physics C, 1987, 11(1): 24-31.
[16]	SONG Xiao-Tong,DAI You-Shan. ELECTROMAGNETIC FORM FACTORS OF (0—1/2) ELECTROMAGNETIC BOUND SYSTEM. Chinese Physics C, 1985, 9(3): 371-376.
[17]	ZOU Bao-Tang,YU Shou-Mian. PION CLOUD MIT-BAG MODEL OF HADRON STRUCTURE. Chinese Physics C, 1984, 8(5): 523-530.
[18]	YU Zi-Qiang,XU Cheng-Xian,MA Wei-Xing,WANG Ying-Cai. COHERENT π⁰PHOTOPRODUCTION IN THE QUASI-Δ₃₃DOORWAY STATE MODEL. Chinese Physics C, 1983, 7(4): 466-472.
[19]	WU DAN-DI,LI TIE-ZHONG. HIGGS MIXING AND PROTON DECAY IN THE UNIFIED GAUGE MODELSU(4)_C×SU(2)_L×SU(2)_R. Chinese Physics C, 1983, 7(6): 702-708.
[20]	MA ZHONG-QI,DONG FANG-XIAO,YUE ZONG-WU,ZHOU XIAN-JIAN,XUE PEI-YOU. D⁰-MESON DECAYS Γ（D⁰→K⁺K^-）/Γ（D⁰→π⁺π^-）. Chinese Physics C, 1981, 5(1): 130-133.

Access

Get Citation

LI Bing-An. DECAY π ⁰→2γ IN THE MIT BAG MODEL[J]. Chinese Physics C, 1984, 8(3): 279-284.

LI Bing-An. DECAY π ⁰→2γ IN THE MIT BAG MODEL[J]. Chinese Physics C, 1984, 8(3): 279-284. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3320)
PDF Downloads(501)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者:陈斌, bchen63@163.com

1.
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.