Angular Distributions for the Process e+e－→J/ψ→γ+X(JPC),X→BB and Spin-Parity Analysis of the Resonance X

Zhang Lin; Yu Hong; Shen Qixing

Chinese Physics C> 1996, Vol. 20> Issue(3) : 280-285

Angular Distributions for the Process e⁺e^－→J/ψ→γ+X(J^PC),X→BB and Spin-Parity Analysis of the Resonance X

Institute of High Energy Physics, The chinese Academy of Sciences,Beijing 100039

Abstract
HTML
Reference
Related

PDF

Abstract：
Using the helicity angular distribution method we analyse the process e⁺e^－→J/ψ→γ+X(J^PC),X→BB. The angular and the projection angular distribution formulas for different spin-parity of the resonance X are obtained. With these formulas, we determine the spin of the resonance X through analysing experimental data.

References

[1]

P.G.O.Freund,F.Walthz,J.Rosner,Nucl Phys,B13（1969）237.[2] P.Henrard,P CC F,R I87-03（1987）[3] JS.Brown,P HD Thesis,U MI84-19117-mc（unpublished）[4]金山，在J/ψ衰变中研究ξ（2230）粒子，中科院高能物理所博士论文。[5]郁宏，高能物理与核物理，13（1989）87;郁宏、沈齐兴，高能物理与核物理，17（1993）892.[6] A.Etkin et al.,Phys Rev.,Lett,49（1982）1620.[7]沈齐兴、郁宏，高能物理与核物理，14（1990）504.

[1]	PING Rong-Gang , YUAN Chang-Zheng . Baryon Resonance in χ_c0→BBMM Decays. Chinese Physics C, 2006, 30(8): 731-735.
[2]	SHEN Qi-Xing , YU Hong . Study on the Baryon State X Produced in the Process J/ψ→p+X,X→Δ+π. Chinese Physics C, 2003, 27(4): 288-292.
[3]	SHAO Feng-Lan , XIE Qu-Bing . Ratio of Baryon to Meson and Baryon Antibaryon Correlation in e⁺e^－ Annihilation under Two Kinds of Color Connections. Chinese Physics C, 2002, 26(8): 779-785.
[4]	Dong Yubing . Calculation for the Longitudinal Transition Amplitudes of Baryon Resonances. Chinese Physics C, 1998, 22(3): 277-282.
[5]	Ma Weixing . Searching for Dibaryon With Pion-Nucleus Double Charge Exchange Reaction. Chinese Physics C, 1998, 22(10): 955-958.
[6]	Shen Qixing , Yu Hong . Determining the Spin-Parity of the Boson Resonance X in the Process J/ψ→X+f₀ (980) by Using the Generalized Moment Analysis Method. Chinese Physics C, 1996, 20(1): 45-47.
[7]	Zhang Lin , Yu Hong , Shen Qixing . Angular Distribution of the Process e⁺e^-→J/ψ→γ+X(J^Pc),X→BB,and the Spin-Parity Analysis of the Resonance X. Chinese Physics C, 1996, 20(S2): 135-140.
[8]	Zhang Lin , Yu Hong , Shen Qixing . Moment Analysis for the Process e⁺e^－→J/ψ→V+X(J^PC), X→3P. Chinese Physics C, 1995, 19(9): 800-811.
[9]	Yu Hong , Shen Qixing , Zhang Lin . Angular Distribution of Process e⁺e^－→τ⁺τ^－,τ^－→a₁υτ,a₁→ρπ and Characteristics of a₁ Meson. Chinese Physics C, 1994, 18(7): 583-590.
[10]	Wang Qun , Xie Qubing . Production Percentages of L=1 Excited Baryons in e⁺e^－ Annihilation. Chinese Physics C, 1994, 18(9): 807-812.
[11]	Yu Hong , Shen Qixing . A Possible New Resonance State──Spin-Parity Analysis of the X Resonance in J/ψ→X＋f₀ (975) Process. Chinese Physics C, 1994, 18(12): 1143-1146.
[12]	LIN Jin-HU , ZHANG Shou , ZHENG Zhe-Zhu . The Influence on the Baryon and Its Resonances From a New Additional Mass Term in the Skyrme Model. Chinese Physics C, 1993, 17(1): 38-43.
[13]	SHEN Qixing , YU Hong . Determination of the Spin-parity of the Boson Resonance X for the Process J/ψ→V₁+X,X→γ+V₂. Chinese Physics C, 1993, 17(11): 988-992.
[14]	SHEN Qi-Xing , YU Hong . Spin and parity analysis for the three-step two-body hadronic decay processes of J/ψ. Chinese Physics C, 1992, 16(3): 219-228.
[15]	CHEN E-Sheng , XIE Qu-Bing . THE RATIO OF CHARMED BARYON TO MESON IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1990, 14(4): 319-324.
[16]	FANG Hai-Ping , XIE Qu-Bing , LAI Xiao-Ping . RAPIDITY DISTRIBUTION AND BARYON-ANTIBARYON CORRELATIONS IN e⁺e^－→TWO JET EVENTS. Chinese Physics C, 1989, 13(6): 518-525.
[17]	YAN Wu-Guang , YU Hong . THE ANGULAR DISTRIBUTION FOR THE PROCESS e⁺e^－→J/ψ→γB,B→P₁P₂ AND THE SPIN ANALYSIS OF B. Chinese Physics C, 1989, 13(3): 234-240.
[18]	LIU Xi-Ming . BARYON PRODUCTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1989, 13(9): 803-807.
[19]	XIE Shu-Qin , ZHANG Qi-Ren . THE UNITARY SYMMETRY IN DIBARYON RESONANT STATES. Chinese Physics C, 1985, 9(4): 483-490.
[20]	LI ZI-PING . THE G_s PARITY OF STRANGE MESONS AND THE SELECTION RULE IN STRONG DECAY OF RESONANCE STATE. Chinese Physics C, 1981, 5(3): 372-373.

Access

Get Citation

Zhang Lin, Yu Hong and Shen Qixing. Angular Distributions for the Process e⁺e^－→J/ψ→γ+X(J^PC),X→BB and Spin-Parity Analysis of the Resonance X[J]. Chinese Physics C, 1996, 20(3): 280-285.

Zhang Lin, Yu Hong and Shen Qixing. Angular Distributions for the Process e⁺e^－→J/ψ→γ+X(J^PC),X→BB and Spin-Parity Analysis of the Resonance X[J]. Chinese Physics C, 1996, 20(3): 280-285. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2996)
PDF Downloads(564)
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

Angular Distributions for the Process e⁺e^－→J/ψ→γ+X(J^PC),X→BB and Spin-Parity Analysis of the Resonance X

Corresponding author: Zhang Lin,

Institute of High Energy Physics, The chinese Academy of Sciences,Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1996-03-05

Abstract: Using the helicity angular distribution method we analyse the process e⁺e^－→J/ψ→γ+X(J^PC),X→BB. The angular and the projection angular distribution formulas for different spin-parity of the resonance X are obtained. With these formulas, we determine the spin of the resonance X through analysing experimental data.