Chinese Physics C > 2006, Vol. 30 > Issue(6): 542-547

The N^*(1710) contribution to the Θ⁺production cross sections in p-p collisions

School of Physics, Southwest University, Chongqing 400715, China2 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

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Abstract：
In this paper we derive the Θ production cross section in high energy proton-proton collisions in the relativistic framework through using effective hadronic couplings. Both the nucleon and N ^*(1710) propagations are taken into account in the intermediate states. The one π and one ρ exchange mechanisms are considered and the commonly accepted coupling constants and form factors are used in the calculation. We find that ρ exchange is dominant in these processes and the N ^*(1710) propagation in the intermediate state is important,which increases the Θ production cross section by a factor of a few tens at center of mass energy 4GeV.

References

[1]

. Nakano T et al. Phys. Rev. Lett., 2003, 91: 0120022. ZHU S L. Int. J. Mod. Phys., 2004, A19: 34393. Lü Xiao-Rui, MAO Ya-Jun, MA Bo-Qiang. Acta Scientiarum Naturalium Universitatis Pekinensis(S.S.), 2003,39(Suppl.): 44—55(in Chinese)(吕晓睿,冒亚军,马伯强.北京大学学报(自然科学版),2003,39(增刊)44-55)4. Diakonov D, Petrov V, Poliakov M. Z. Phys., 1997, A359:3055. ZHU S L. Int. J. Mod. Phys., 2005, A20: 15486. Ken Hicks. An Experimental Review of the Θ+ Pentaquark,J. Phys., 2005, Conference series 9: 183—1917. Burkert V D. Have Pentaquark States Been Seen?arXiv:hep-ph/05103098. LIU W, KO C M. Phys. Rev., 2003, C68: 0452039. Tsushima K et al. Phys. Rev., 1999, C59: 369—38710. LIU B C, ZOU B S. Mass and K Coupling of N*(1535).arXiv: nucl-th/050306911. LI C H, KO C M. Nucl. Phys., 2002, A712: 110—13012. LIN Z W, KO C M, ZHANG B. Phys. Rev., 2000, C61:02490413. LIN Z, DI T G, KO C M. Nucl. Phys., 2001, A689: 965—97914. LIU W, KO C M. Phys. Lett., 2002, B533: 259—264; LIUW, KO C M, LIN Z. Phys. Rev., 2002, C65: 01520315. LIU W, Lee S H, KO C M. Nucl. Phys., 2003, A724: 375—39016. Particle Data Group. Phys. Lett., 2004, B592: 66—69

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[6]	GUO Yan-Rui,LI Xi-Guo,GAO Yuan,LIU Jian-Ye. Effective Mass of Pentaquark Θ+ in Dense Matter. Chinese Physics C, 2005, 29(6): 533-536.
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[10]	WANG Ping,YUAN Chang-Zheng,MO Xiao-Hu. Contribution of One-Photon Annihilation at ψ(2S) in e⁺e^－Experiment. Chinese Physics C, 2003, 27(6): 465-473.
[11]	WANG Xiu-Lian,DUAN Chun-Gui,WANG Hong-Min,HE Ming-Zhong. Color-Octet Contributions in High Energy π-p Collision Process. Chinese Physics C, 2001, 25(7): 621-627.
[12]	YUE ChongXing,YANG ZhengTao,LU GongRu,LI WeiBin,SUN JunFeng. ETC Interactions and CP Violation in Top Quark Pair Production at the Next Linear Collider. Chinese Physics C, 2000, 24(12): 1088-1093.
[13]	Shen Hongqing,Yang Jianjun,Ping Jialun,Wang Fan,Li Guanglie,Shen Jianping. Quark Excitation and Proton Spin. Chinese Physics C, 1994, 18(3): 277-281.
[14]	Liu Bo,Zhao Weiqin. Contribution Due to Gluon Shadowing and Final-State Interactions to Charmonium/Bottonium Suppression in h-A Collisions. Chinese Physics C, 1994, 18(5): 443-447.
[15]	LIU Bo. Enhancement of K⁺/π⁺Ratio in High-Energy Proton-Nucleus and Nucleus-Nucleus Collisions Due to the Secondary Collisions. Chinese Physics C, 1993, 17(5): 455-461.
[16]	LI Yang-Guo. The Spin Effect of Antiproton-Nucleus Inelastic Collison. Chinese Physics C, 1992, 16(2): 137-144.
[17]	LU Zhao-Qi,SA Ben-Hao,ZHENG Yu-Ming,,. NUCLEAR CHARGE DISPERSION OF FRAGMENTS IN HIGH ENERGY PROTON-NUCLEUS COLLISION. Chinese Physics C, 1988, 12(1): 75-79.
[18]	LIU Jian-Ye,LI Jun-Qing,QIAO Wei-Min,CHEN Pei-Jun,SHEN Wen-Qing,TAN Nan-Hong. THE SHELL EFFECTS IN HEAVY ION COLLISIONS FOR LOW BOBARDMENT ENERGIES. Chinese Physics C, 1988, 12(6): 840-847.
[19]	GE Ling-Xiao,SHEN Wen-Qing,LIU Jian-Ye,WU Guo-Hua. MASS DRIFT IN HEAVY ION REACTION. Chinese Physics C, 1987, 11(5): 674-681.
[20]	ZENG Bao-Sheng,HUANG Qing,GONG Xue-Hui. MESON AND DI-QUARK CONTRIBUTION TOR(σ_L/σ_T) IN DEEP INELASTIC SCATTERING. Chinese Physics C, 1984, 8(2): 235-240.

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LI Gui-Jun, CHEN Hong, ZOU Bing-Song, JIANG Huan-Qing and HUANG Shu-Yi. The N ^*(1710) contribution to the Θ ⁺production cross sections in p-p collisions[J]. Chinese Physics C, 2006, 30(6): 542-547.

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Received: 2005-12-04
Revised: 2005-12-21

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

The N^*(1710) contribution to the Θ⁺production cross sections in p-p collisions

Corresponding author:LI Gui-Jun,

School of Physics, Southwest University, Chongqing 400715, China2 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

Received Date:2005-12-04

Accepted Date:2005-12-21

Available Online:2006-06-05

Abstract:In this paper we derive the Θ production cross section in high energy proton-proton collisions in the relativistic framework through using effective hadronic couplings. Both the nucleon and N^*(1710) propagations are taken into account in the intermediate states. The one π and one ρ exchange mechanisms are considered and the commonly accepted coupling constants and form factors are used in the calculation. We find that ρ exchange is dominant in these processes and the N^*(1710) propagation in the intermediate state is important,which increases the Θ production cross section by a factor of a few tens at center of mass energy 4GeV.

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The N^*(1710) contribution to the Θ⁺production cross sections in p-p collisions

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