QUARK AND GLUON CONTENT OF η、η′AND ι(1440),THEIR DECAYS IN TWO PHOTONS AND PRODUCTIONS IN J/ψ RADIATIVE DECAY

YU Hong

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2024年10月30日

Chinese Physics C> 1988, Vol. 12> Issue(6) : 754-760

QUARK AND GLUON CONTENT OF η、η′AND ι(1440),THEIR DECAYS IN TWO PHOTONS AND PRODUCTIONS IN J/ψ RADIATIVE DECAY

YU Hong ^,

Institute of High Energy Physics,Academia Sinicas,Beijing

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Abstract：
In this paper we introduce the annihilation terms decribing transitions q_iq_i→q_jq_j and q_iq_i→(gg) and consider the SU(3) breaking effect for these terms.We discuss the mixing mechanism of η,η′and ι and obtain the quark and gluon content of η,η′and ι.At the sametime we introduce EPCAC (Extended Partially Conserved Axial-vector Current) hypothesis and examine η,η′and ι decays in two photons.We calculate yet the ratio R₁=Γ(J/ψ→γη′)/Γ(J/ψ→γη) and R₂=Γ(J/ψ→γη′)/Γ(J/ψ→γι) and point out the experimental restriction for the pure glueball mass.

References

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T. N. Pham, Phys. Lerr., 87B(1979), 267.[2] J. L. Rosner, Phys. Rev., D27(1983), 1101; H. Suura and M. Kuroda, Prog. Theor. Phys., 54(1975), 1513.[3] C. A. Dorninguez, Phys. Reu., D15(1977), 1350.[4] Sh. S. Eiemyan and A. E. Nazaryan, EqN-802(29)-85.[5] F. J. Gilman and R. Kauffman, SLAC-PUB-4301.[6] J. F. Donoghue, B. R. Holstein and Y.-C. R. Lin, Phys. Rev. Lerr, 55(1985), 2766.[7] Particle Data Group, Phys. Lerr., 170B(1986), 1.[8] 郁宏、李炳安、沈齐兴和张美曼，高能物理与核物理，8(1984),285,[9] J. S. Bell and R. Jackiw, Nuovo. Cimenro., 60A(1969), 47; S. L. Adler, Phys. Rev., 177(1969), 2426.[10] M. Chanowitz, 在北京"物理讲习班”上的讲演.[11] K. F. Donoghue, K. Johnson and B. A. Li, Phys. Lerr., 99B(1981), 416.

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YU Hong. QUARK AND GLUON CONTENT OF η、η′AND ι(1440),THEIR DECAYS IN TWO PHOTONS AND PRODUCTIONS IN J/ψ RADIATIVE DECAY[J]. Chinese Physics C, 1988, 12(6): 754-760.

YU Hong. QUARK AND GLUON CONTENT OF η、η′AND ι(1440),THEIR DECAYS IN TWO PHOTONS AND PRODUCTIONS IN J/ψ RADIATIVE DECAY[J]. Chinese Physics C, 1988, 12(6): 754-760. 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

QUARK AND GLUON CONTENT OF η、η′AND ι(1440),THEIR DECAYS IN TWO PHOTONS AND PRODUCTIONS IN J/ψ RADIATIVE DECAY

YU Hong ^,

Corresponding author: YU Hong,

Institute of High Energy Physics,Academia Sinicas,Beijing

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1988-12-05

Abstract: In this paper we introduce the annihilation terms decribing transitions q_iq_i→q_jq_j and q_iq_i→(gg) and consider the SU(3) breaking effect for these terms.We discuss the mixing mechanism of η,η′and ι and obtain the quark and gluon content of η,η′and ι.At the sametime we introduce EPCAC (Extended Partially Conserved Axial-vector Current) hypothesis and examine η,η′and ι decays in two photons.We calculate yet the ratio R₁=Γ(J/ψ→γη′)/Γ(J/ψ→γη) and R₂=Γ(J/ψ→γη′)/Γ(J/ψ→γι) and point out the experimental restriction for the pure glueball mass.