Chinese Physics C > 1995, Vol. 19 > Issue(1): 93-96

New Suppression Mode of the ψ(2S) Hadronic Decay

BES Collaboration

Institute of High Enerty Physics, Acadamia Scinica, Beijing 100039

Abstract
HTML
Reference
Related

PDF

Abstract：
The hadronic decays ,and ωf2(1270) have been studied in a sample of 1.27 million produced.Measurements of their branching fractions are presented. While obeys the "14% rule" predicted by theory, →ωf2 (1270) is suppressed comparing with the corresponding decay. As a vector-tensor pair combination, the ωf2 mode is the first example of a non-vector-pseudoscalar decay of charmonium which violates the above mentioned rule.

References

[1]	北京谱仪合作组，丁慧良等，高能物理与核物理，16（1992）769.[2]M.E.B.Franklinetal.,Phys.Rev.Letter,51（1983）963.[3]W.Toki,1989 International Symposium on Heavy Quark Physics,Cornell University,Ithaca,NY,June13-17,1989.[4]Particle Data Group,K.Hikasaetal.,Phys.Rev,D45（1992）.

[1]	Ai-Jun Ma,Ya Li,Wen-Fei Wang,Zhen-Jun Xiao.S-wave resonance contributions to B_(s)⁰→η_c(2S)π⁺π^-in the perturbative QCD factorization approach. Chinese Physics C, 2017, 41(8): 083105.doi:10.1088/1674-1137/41/8/083105
[2]	GAO Tie-Jun,FENG Tai-Fu,ZHAO Shu-Min,KOU Li-Na. Comprehensive analysis of e⁺e^-→γη_c(2S). Chinese Physics C, 2013, 37(7): 073102.doi:10.1088/1674-1137/37/7/073102
[3]	M. Ablikim et al (BESⅡ collaboration). First evidence of ψ(2S)→Ω^-Ω⁺. Chinese Physics C, 2012, 36(11): 1040-1045.doi:10.1088/1674-1137/36/11/002
[4]	Henryk Czyz,Agnieszka Grzelinska. Strong and electromagnetic J/ψ and ψ(2S) decays into pion and kaon pairs. Chinese Physics C, 2010, 34(6): 855-859.doi:10.1088/1674-1137/34/6/039
[5]	WEI Dai-Hui,YANG Yong-Xu. Pseudoscalar mixing in J/ψ and ψ(2S) decay. Chinese Physics C, 2010, 34(12): 1785-1790.doi:10.1088/1674-1137/34/12/002
[6]	GUO Yu-Ping,PING Rong-Gang,XIAO Zhen-Jun. Study of ππ final state interactions in ψ(2S)→π⁺π^－J/ψ. Chinese Physics C, 2009, 33(4): 245-248.doi:10.1088/1674-1137/33/4/001
[7]	JIANG Xing-Yu,FANG Shuang-Shi,ZHU Yu-Can,LU Gong-Ru. Pseudoscalar-Meson Mixing in ψ(2S)→VP Decays. Chinese Physics C, 2006, 30(8): 724-730.
[8]	GUO Fen-Kun,SHENG Peng-Nian,JIAN Huan-Qing,PING Rong-Gang. Decay Υ(3S)→Υ(1S)π＋π－and a Possible bbqq State. Chinese Physics C, 2005, 29(12): 1121-1124.
[9]	MO Xiao-Hu,ZHU Yong-Sheng,YUAN Chang-Zheng,FU Cheng-Dong,LI Gang. Determination of ψ(2S) Total Number by Inclusive Hadronic Decay. Chinese Physics C, 2004, 28(5): 455-462.
[10]	FU Cheng-Dong,MO Xiao-Hu,ZHANG Jia-Wen,ZHU Yong-Sheng,YUAN Chang-Zheng,DONG Xin,DONG Liao-Yuan. Fast Reconstruction of ψ(2S) Data and Corresponding Quality Supervision. Chinese Physics C, 2003, 27(8): 653-658.
[11]	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.
[12]	MO Xiao-Hu,ZHU Yong-Sheng. Correlated Data Fitting and Error Analysis in ψ(2S) Scan Experiment. Chinese Physics C, 2003, 27(6): 474-478.
[13]	MO Xiao-Hu,ZHU Yong-Sheng. Determination of Decay Width Error and Luminosity in ψ(2S) Scan. Chinese Physics C, 2001, 25(12): 1133-1139.
[14]	CUI XiangZong,GU YiFan,LI XinHua,HAN ShiWen. Measurement of Integrated Luminosity at ψ(2S) by Wide-Angle Bhabha Scattering. Chinese Physics C, 2000, 24(1): 4-10.
[15]	Li Xinhua,Gu Yifan. Comments on the Ratio of Hadronic Decay Rates of ψ(2S)to J/ψ. Chinese Physics C, 1998, 22(4): 293-298.
[16]	BES Collaboration. Abnormal Suppression of Vector-Tensor Decays of ψ(2S). Chinese Physics C, 1997, 21(1): 89-96.
[17]	BES Collaboration. Determination of J/ψ Leptonic Branching Fraction Via ψ(2S)→π⁺π^－J/ψ. Chinese Physics C, 1996, 20(2): 97-106.
[18]	BES Collaboration. Study of ψ(2S)Decays into pπ and KK. Chinese Physics C, 1996, 20(6): 481-490.
[19]	BES Collaboration. Study of ψ(2S) Decay to τ Lepton Pairs. Chinese Physics C, 1995, 19(7): 577-584.
[20]	BES Collaboration. Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.

Access

Get Citation

BES Collaboration. New Suppression Mode of the ψ(2S) Hadronic Decay[J]. Chinese Physics C, 1995, 19(1): 93-96.

BES Collaboration. New Suppression Mode of the ψ(2S) Hadronic Decay[J]. Chinese Physics C, 1995, 19(1): 93-96. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3870)
PDF Downloads(608)
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

New Suppression Mode of the ψ(2S) Hadronic Decay

BES Collaboration

Institute of High Enerty Physics, Acadamia Scinica, Beijing 100039

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1995-01-05

Abstract:The hadronic decays ,and ωf2(1270) have been studied in a sample of 1.27 million produced.Measurements of their branching fractions are presented. While obeys the "14% rule" predicted by theory, →ωf2 (1270) is suppressed comparing with the corresponding decay. As a vector-tensor pair combination, the ωf2 mode is the first example of a non-vector-pseudoscalar decay of charmonium which violates the above mentioned rule.