讨论了高能强子-强子散射过程中的坡密子以及坡密子的QCD内容．认为坡密子有可能就是具有量子数IG＝0+，JPC＝2++的张量胶子球ξ(2 230)．用雷其化胶子球模型计算了高能质子-质子散射截面和坡密子-核子的耦合参数β．理论结果与实验的要求一致．
The pomeron in high energy hadron-hadron scattering as well as the QCD nature of the pomeron are discussed.We claimed that the pomeron may be the tenser glueball ξ(2 230) with quantum number IG ＝0+, JPC＝2++. Under thisreggeized glueball model the cross section of high energy proton-proton scattering and the coupling parameter of the pomeron-nucleon, β, are calculated. The theoretical results of the present model are in good agreement with experimental data.
参考文献
| [1] | Regge T, Nuovo Cimento. 1959, 14: 951; Regge T. Nuovo Cimento, 1960, 18: 947. |
| [2] | Collins P D B. Introduction to Regge Theory and High Energy Physics. Cambridge University Press, Cambridge, 1977. |
| [3] | Pomeranchuk I Y. Sov Phys, 1958, 7: 499. |
| [4] | Forshow J R, Ross D A. QCD and the Pomeron. Cambridge Lecture Notes in Physics, 1997. |
| [5] | Burakovsky L. Scalar Glueball Mass in Regge Phenomenology. Phys Rev, 1998, D58:57 503～57 507. |
| [6] | Low F E. Model of the Bare Pomeron. Phys Rev, 1975, D12:163～173. |
| [7] | K uraev E A, Lipatov L N, Fagin V S. On the Pomeranchuk Singularity in Asymptotically Free Theory. Phys Lett, 1975,B60: 50～52. |
| [8] | Alfardli G, Paris G. Asymptotic Freedom in Parton Language. Nucl Phys, 1997, B126: 298～318. |
| [9] | Landshoff P V, Nachtmann D. Vacuum Structure and Diffractive Scattering. Z Phys, 1987, C35: 405～416. |
| [10] | Fadin V S, Lipatov L N. BFKL Pomeron in the Next-to-Leading Approximation. Phys Lett, 1998, B429: 127～134. |
| [11] | Donnachie A, Landshoff P V. Small x Two Pomerons. Phys Lett, 1998, B437: 408～416. |
| [12] | Stephen Godfrey, Jim Napolifano. Light Meson Spectroscopy. Hep-ph/9811410. |
| [13] | Amaler C, Close F. Evidence for Scalar Glueball. Phys Lett,1995, B353: 385～390. |
| [14] | Baltrusaltis R M, Becker J J, Blarlock G J et al. Mark Ⅲ Collaboration, Observation of a Narrow KK- State in J/ψ Radiative Decays. Phys Rev Lett, 1986, 56: 107～ 110; Bai J Z, Bian J G, Chai Z W et al. BES Collaboration, Structure Analysis of the fJ(1 710) in the Radiative J/ψ→γKK-. Phys Rev Lett, 1996, 77:3 959～3 962. |
| [15] | Particle Data Group, Caso C et al . Eur Phys J, 1998, C3:1. |
| [16] | Bai J Z, Bian J G, Chai Z W et al. BES Collaboration Structure Analysis of the fJ(1 710) in the Radiative J/ψ→γKK-.Phys Rev Lett, 1996, 77:3 959～3 962. |
| [17] | Baltrusaitis R M, Becket J J, Blaylock G T et al. Mark Ⅲ Collaboration Observation of a Narrow KK- State in J/ψ Radiative Decays. Phys Rev Lett, 1986，56: 107～110. |
| [18] | Bai J Z, Chen G P, Chen H F et al. BES Collaboration,Studies of Xi(2 230) in J/ψ Radiative Decays. Phys Rev Lett, 1996, 76:3 502～3 505. |
| [19] | Liu L C, Ma W H. The Xi(2 230) Meson and the Pomeron Trajectory. Journal of Physics, 2000, G26: L59～L63. |
| [20] | Haider Q, Lin L C. A Mesonic Model of ρ-Baryon-Baryon Vertices. J Phys, 1996,G22: 1 187～1 214. |
| [21] | Landshoff P V, Polkingberne J C. The Dual Quark-patton Model and High Energy Hadronic Processes.Nucl Phys,1971, B32: 541～556. |
| [22] | Donnachie A, Landshoff P V. Pp and pp* Elastic Scattering. Nucl Phys, 1984, B231: 189～204. |
| [23] | Kisslinger L S, Wei Hsing Ma. Pomeron as a Reggeized Glueball/Sigma. Phys Lett, B to be published, 2000. |
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