Analysis of Φ Decay to 3γ Final States with the TELESIS

XU Guo-Fa; TONG Guo-Liang; HUANG Xiu-Ping; LV Feng; YU Guo-Wei

Chinese Physics C> 2002, Vol. 26> Issue(5) : 462-470

Analysis of Φ Decay to 3γ Final States with the TELESIS

Institute of High Energy Physics, CAS, Beijing 100039, China

Abstract
HTML
Reference
Related

PDF

Abstract：
DAΦNE (Double Annular Φ factory for Nice Experiment) is the Frascati(Italy) electron positron collider operating at the energy of 510 MeV, a rather low energy with respect to the other existing factories. DAΦNE includes two collision points, and KLOE detector is located at one of these points. The KLOE detector is designed primarily for the goal of detecting direct CP violation in K⁰ decays with a sensitivity of ～10^－4 in R (ε′/ε), with a vast amount of other physics subjects. φ radiative dacays, especially its pure neutral final states are very important subjects to test the Chiral Perturbation Theory approach both in the anomalous and non-anomalous sectors. In this paper, a new kinematic fit method—TELESIS—is used for the data analysis of φ radiative decay φ→γη→3γ and φ→γπ⁰→3γ based on a part of 2000' data collected by KLOE detectors in DAΦNE, the φ produced cross section and the partial cross section of e⁺e^－→φ→γπ⁰→3γ have been obtained as follows:σe+e－→φ=(4.04±0.04±0.24)μb,σe+e－→φ→γπ0→3γ=(5.3±0.3±0.6)nb. These results are in good agreement with that of VEPP and theoretical predictions.

References

[1]

. Dell'Agnello S .The KLOE Detector. In:Bianco S et al.Physics and Detectors for DAΦNE .Frascati:SIS-Ufficio Publicazioni. 1999.381—391;TONG Guo-Liang. Physics, 2000, 29(3):169—173 (in Chinese) (童国梁.物理,2000,29(3):169—173)2. Ametller L .Electromagnetic η decays. In:Maiani L ,Pancheri G ,Paver N .The Second DAΦNE Physics Handbook. Frascati:SIS-Ufficio Publicazioni, 1995.427—444 3. O'Donnel P .Rev. Mod. Phys.,1981,53:673 4. O'Donnel P .Prog. Part. Nucl. Phys.,1997,39:2015. Bramon A ,Grau A ,Pancheri G .Phys. Lett.,1995,B334:2406. Benayoun M et al.Z .Phys.,1996,C72:2217. Achasov N et al. Int. J. Mod. Phys.,1992,A7:3187 8. XU Guo-Fa.The Analysis of Φ Decay to 3γ Final States by Using the TELESIS Method, KLOE Memo No.232/01 9. Antonelli A et al.GEANFI program-version 1. 2, KLOE Memo 23,3/93 10. Denig A .KLOE Luminosity Measurement, KLOE General Meeting, Dec. 11—12,200011. KLOE Collab. KLOE First Results on Hadronic Physics,30th International Conference on High Energy Physics, Osaka, Japan, hep-ex/0006036 12. Akhmetshin R R et al.hep-ex/000801913. Achasov N et al.hep-ex/0009036 14. Akhmetshin R R et al. Phys. Lett.,1999,B460:242—247;Kuraev E A ,Fadin V S .Sov. J. Nucl. Phys.,1985,41:46615. Achasov M N et al. J. Exp. Theo. Phys.,2000,90:17—2316. Achasov M N et al. hep-ex/9809013 17. Achasov M N et al. Eur. Phys. J.,2000,C12:25—33 18. Dolinsky S I et al. Phys. Rep.,1991,202:99—170

[1]	XU Ming-Mei , LIU Lian-Shou . A Monte Carlo Study on the Reconstruction Method for Instanton in Deep-Inelastic e⁺p Scattering. Chinese Physics C, 2007, 31(2): 119-124.
[2]	ZHOU Chun-Lan , ZHANG Tian-Bao , MA Chuang-Xing , ZHANG Zhi-Ming , CAO Xing-Zhong , WANG Bao-Yi , WEI Long . The Analysis of 3γ/2γ in the Measurement of Positron Annihilation Doppler-broadening Spectroscopy. Chinese Physics C, 2006, 30(1): 84-87.
[3]	LI Jing-Wu , YANG Mao-Zhi , DU Dong-Sheng . D→PV Decays with Final State Interactions. Chinese Physics C, 2003, 27(8): 665-672.
[4]	Yu Youwen , Zhang Zongye , Yuan Xiuqing . Study of Six Quark Cluster States in Chiral SU(3) Quark Model. Chinese Physics C, 1999, 23(9): 859-864.
[5]	Zhang Weigang . Correlative Degree and Collective Sideward Flow of Final State Particles in High Energy Heavy Ion Collisions. Chinese Physics C, 1999, 23(4): 367-374.
[6]	BES Collaboration . Measurements of the Branching Ratios for the Decays J/ψ→γπ⁰,γη, γη'→ 3γ at BES. Chinese Physics C, 1997, 21(5): 385-392.
[7]	BES Collaboration . Abnormal Suppression of Vector-Tensor Decays of ψ(2S). Chinese Physics C, 1997, 21(1): 89-96.
[8]	Zhang Zongye , Yu Youwen , Dai Lianrong . Quark-Chiral Field interaction in SU(3) Model. Chinese Physics C, 1996, 20(4): 363-368.
[9]	Huo Lei , Liu Yiming , Zhang Weining . Anisotropic Distribution of Final State Particles in High Energy Heavy Ion Collisions. Chinese Physics C, 1996, 20(9): 812-818.
[10]	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.
[11]	Hao Sanru , Li Guanghua , Long Junyan . q-Deformed Charged Fermion Coherent States and SU(3)Charged, Hypercharged Fermion Coherent States. Chinese Physics C, 1994, 18(10): 919-927.
[12]	Wang Haiqiao , Cai Xu . Intermittent Behaviour of Final-State Particles and Nuclear Collision Geometry in High Energy Induced Nuclear Reactions. Chinese Physics C, 1994, 18(3): 235-238.
[13]	Li Zuohong , Hou Yunzhi . Semileptonic B-Meson Decays in SU(3). Chinese Physics C, 1994, 18(8): 715-723.
[14]	SHEN Qi-Xing , YU Hong . Determining the Spin and Parity of Particle X for the Process J/ψ→V₁,X→V₂+V₃ by Using the Generalized Moment Analysis Method. Chinese Physics C, 1993, 17(6): 503-510.
[15]	CHEN Guo-Ming , CHEN He-Sheng , JIN Bing-Nian , TANG Xiao-Wei , TONG Guo-Liang , WU Yi-Gen , ZHONG Chong-Chang . e/π Separation analysis from L3 Calorimeter Beam Test. Chinese Physics C, 1992, 16(1): 1-10.
[16]	LI Guang-Hua , SUN Hong-Zhou , HAN Qi-Zhi , LI Xian-Yin . The Strong Coupling SU(3) Limit in IBM4. Chinese Physics C, 1991, 15(8): 742-747.
[17]	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.
[18]	CHEN Tian-Lun , Zhou Hong-Mo , LI Tie-Zong , XIAN Ding-Chang , ZHENG Xi-Te . VARIATIONAL ANALYSIS OF THE SU(3) LATTICE GAUGE THEORY. Chinese Physics C, 1984, 8(5): 653-656.
[19]	ZHANG Tian-Bao , TANG Xiao-Wei , WANG Yun-Yu , LI Yao-Qing , YIU Ke , WANG Shao-Jie . MEASUREMENT OF THE WHOLE GAMMA-RAY ENERGY SPECTRUM IN o-Ps 3 GAMMA-DECAY. Chinese Physics C, 1984, 8(4): 385-391.
[20]	Zhou Guang-zhao , Gao Chong-shou . UNIFIED ELECTRO-WEAK MODEL IN SU (3). Chinese Physics C, 1980, 4(5): 609-622.

Access

Get Citation

XU Guo-Fa, TONG Guo-Liang, HUANG Xiu-Ping, LV Feng and YU Guo-Wei. Analysis of Φ Decay to 3γ Final States with the TELESIS[J]. Chinese Physics C, 2002, 26(5): 462-470.

XU Guo-Fa, TONG Guo-Liang, HUANG Xiu-Ping, LV Feng and YU Guo-Wei. Analysis of Φ Decay to 3γ Final States with the TELESIS[J]. Chinese Physics C, 2002, 26(5): 462-470. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2001-05-09
Revised: 1900-01-01

Article Metric

Article Views(4313)
PDF Downloads(636)
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

Analysis of Φ Decay to 3γ Final States with the TELESIS

Corresponding author: XU Guo-Fa,

Institute of High Energy Physics, CAS, Beijing 100039, China

Received Date: 2001-05-09

Accepted Date: 1900-01-01

Available Online: 2002-05-05

Abstract: DAΦNE (Double Annular Φ factory for Nice Experiment) is the Frascati(Italy) electron positron collider operating at the energy of 510 MeV, a rather low energy with respect to the other existing factories. DAΦNE includes two collision points, and KLOE detector is located at one of these points. The KLOE detector is designed primarily for the goal of detecting direct CP violation in K⁰ decays with a sensitivity of ～10^－4 in R (ε′/ε), with a vast amount of other physics subjects. φ radiative dacays, especially its pure neutral final states are very important subjects to test the Chiral Perturbation Theory approach both in the anomalous and non-anomalous sectors. In this paper, a new kinematic fit method—TELESIS—is used for the data analysis of φ radiative decay φ→γη→3γ and φ→γπ⁰→3γ based on a part of 2000' data collected by KLOE detectors in DAΦNE, the φ produced cross section and the partial cross section of e⁺e^－→φ→γπ⁰→3γ have been obtained as follows:σe+e－→φ=(4.04±0.04±0.24)μb,σe+e－→φ→γπ0→3γ=(5.3±0.3±0.6)nb. These results are in good agreement with that of VEPP and theoretical predictions.

HTML

Reference (1)

Analysis of Φ Decay to 3γ Final States with the TELESIS

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article