R Measurement around s=3.55GeV

QI XiangRong; HU HaiMing; LI XinHua; HUANG GuangShun; CHEN JiangChuan; HU Tao; JU Xin; LI Jin; MAO ZePu; XUE ShengTian; ZHENG ZhiPeng; ZHOU Li; ZHAO ZhengGuo

Chinese Physics C> 2000, Vol. 24> Issue(7) : 609-615

R Measurement around s=3.55GeV

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

Abstract
HTML
Reference
Related

PDF

Abstract：
Using the data collected with Beijing Spectrometer (BES),we have measured the total cross section for e⁺e^－ annihilation into hadronic final states around center-of-mass energy 3.55 GeV. The values of R,σ (e⁺e^－→hadrons)/σ(e⁺e^－→μ⁺μ^－),are determined with smaller error than the previous result by a factor of two.

References

[1]

. Caso C et al.European Phys.Journal,1998,C3:1 2. Ceradini F et al.Phys .Lett.,1973,B4 7:80 ;Batoli B et al.Phys.Rev.,1972 ,D6 :2 374 ;Bernardini M et al.Phys.Lett.,1974 ,B51:2 0 0 3. Cosme G et al.Phys.Lett.,1972 ,B4 0 :6 85 4. Kurdadze M et al.Phys.Lett.,1972 ,B4 2 :5155. Litke A et al.Phys.Rev .Lett.,1973,B30 :1189 6. Blondel A .plenary talk at ICHEP’96 ,Warsaw 7. Pietrzyk B .Rad .Corr.Conf.,Cracow ,19968. Davier M ,Hoeker A .LAL 97— 859. Burkhardt H ,Pietrzyk B .Phys .Lett.,1995,B356 :398— 4 0 310. Davier M ,Hocker A .Phys .Lett .,1997,B4 1911. BAI JingZhi et al.Nucl.Instrum .Methods,1994 ,A344 :319 12. YU ZhongQiang et al.High Energy Physics and Nuclear Physics(in Chinese) ,1995,2 3:10 6 2 (郁忠强等 .高能物理与核物理 ,1995,2 3:10 6 2 ) 13. ZHU YongSheng et al.Phys.Lett.,1995,B355:374— 380 14. BAI JingZhi et al.Phys.Rev.1996 ,D53:2 0 15. QI XiangRong ,CHEN JiangChuan et al.High Energy Physics and Nuclear Physics(in Chinese) ,1999,2 3:1— 9(祁向荣、陈江川等 .高能物理与核物理 ,1999,2 3:1— 9) 16. HUANG GuangShun et al.High Energy Physics and Nuclear Physics (in Chinese) ,2 0 0 0 ,2 4 ( 5) :(黄光顺等 .高能物理与核物理 ,2 0 0 0 ,2 4 ( 5) ) :17. Berends F A ,Kleiss R .Nucl.Phys.,1981,B178:14 1 18. Kuraev E A et al.Sov .J.Nucl.Phys.,1985,4 1:319. Bonneau G .Martin F .Nucl.Phys .,1971,B2 7:387 20. Edwards C et al.SLAC –PUB – 516 0 ,1990 21. ZHAO ZhengGuo .Talk given at ICHEP’98,Vancorver ,Canada,1999 22. Kong D .Talk given at DPF99 at Los Angeles,California ,Jan .5— 9,1999 23. QI XiangRong .Talk given at XXXIVth Rencontresde Moriond ,Les Arcs,Savoie ,France,Mar.13— 2 0 ,1999

[1]	M. Ablikim , et al . Measurement of integrated luminosity and center-of-mass energy of data taken by BESⅢ at s=2.125 GeV. Chinese Physics C, 2017, 41(11): 113001. doi: 10.1088/1674-1137/41/11/113001
[2]	LI Xi-Huai , WANG Jian-Xiong . O(α_sv2) correction to J/ψ plus η_c production in e⁺e^- annihilation at s=10.6 Gev. Chinese Physics C, 2014, 38(4): 043101. doi: 10.1088/1674-1137/38/4/043101
[3]	^{M. Ablikim et al. (BESⅢ collaboration)} . Measurement of the integrated luminosities of the data taken by BESⅢ at s=3.650 and 3.773 GeV. Chinese Physics C, 2013, 37(12): 123001. doi: 10.1088/1674-1137/37/12/123001
[4]	K. I. Beloborodov , A. V. Berdyugin , A. A. Botov , V. B. Golubev , T. V. Dimova , V. P. Druzhinin , A. G. Kharlamov , D. P. Kovrizhin , I. A. Koop , A. A. Korol , S. V. Koshuba , A. E. Obrazovsky , E. V. Pakhtusova , D. A. Shtol , S. I. Serednyakov , Z. K. Silagadze , A. N. Skrinsky , Yu. A. Tikhonov , Yu. M. Shatunov , A. V. Vasil'ev . Study of the process e⁺e^－→π⁺π^－π⁰π⁰ at energies √s<1 GeV. Chinese Physics C, 2010, 34(6): 680-685. doi: 10.1088/1674-1137/34/6/012
[5]	HAN Ran . Polarization of Anti-Lambda in s=200GeV Polarized Proton-Proton Collision. Chinese Physics C, 2007, 31(12): 1189-1191.
[6]	XU Yi-Chun , SHAO Ming , ZHANG Zi-Ping . Simulation Study on the Splitting Effect of Transverse Mass Spectra in p+p Collisions at √S=200GeV Using PYTHIA. Chinese Physics C, 2007, 31(6): 538-542.
[7]	CHI Shao-Peng , MO Xiao-Hu , ZHU Yong-Sheng . Measurement of the Integrated Luminosity at s(1/2)=3.650,3.686 GeV for the BES Detector. Chinese Physics C, 2004, 28(11): 1135-1140.
[8]	BES Collaboration . Measurement of Production Cross Section of D_s⁺D_s^－ in e⁺e^－ Annihilation at the Center-of-Mass Energy of s=4.03GeV. Chinese Physics C, 2001, 25(6): 465-475.
[9]	WANG Hui , SA BenHao , TAI An . Low PT Enhancement of Photon Production in 200 A GeV S+ An Collisions. Chinese Physics C, 2000, 24(3): 220-224.
[10]	Liu Feng(Y) , Liu Feng . Revisit to Minijets in pp Collisions at s=630GeV. Chinese Physics C, 1998, 22(7): 631-638.
[11]	Chen Esheng , Wang Qun , Xie Qubing , Chen Yan . Multiplicity of D^*± in e⁺e^－ Annihilation at s=29─35Gev. Chinese Physics C, 1998, 22(3): 234-240.
[12]	Qin Keyu . Calculation of Charged Particle Multiplicity Distribution for pp Collision at S=1800GeV. Chinese Physics C, 1996, 20(7): 635-638.
[13]	BES collaboration . Study of the Decay τ±→π+π-π±υτ at s=4.03 GeV. Chinese Physics C, 1995, 19(5): 385-392.
[14]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Xiong Weijun , Zhong Yu , Li Zuhao . Measurement of Intermittency Exponents in pp Collisions at 400GeV/c. Chinese Physics C, 1994, 18(11): 970-974.
[15]	JING Guiru , REN Guoxiao . Angular Distributions of Projectile Fragments Produced in Collisions of 200A GeV ³²S Beam with Cu. Chinese Physics C, 1993, 17(11): 976-978.
[16]	REN Guo-Xiao . Measurement of Charge Changing Cross Sections of 200A GeV S and Fragments with Cu Target. Chinese Physics C, 1991, 15(12): 1063-1068.
[17]	Ren Guoxiao . Measurement of Charge-Changing Cross Sections of 200 A GeV S and Fragments with Cu Target. Chinese Physics C, 1991, 15(S4): 323-329.
[18]	Chen Esheng , Li Mingming . Yields of Charmed and Bottom Mesons in e⁺e^- Annihilations at √s=10-178 GeV. Chinese Physics C, 1991, 15(S4): 361-371.
[19]	CHEN E-Sheng , LI Ming-Ming . Yields of Charmed and Beautiful Mesons in e⁺e^－ Annihilation at s=10—178GeV 的e⁺e^-. Chinese Physics C, 1991, 15(11): 981-990.
[20]	REN Guo-Xiao , ZHOU Yin-Zao , HUANG Rong-Qing , CHEN Ming-Yuan . MEASUREMENT ON CROSS SECTION OF HIGH ENERGY IRON NUCLEUS (E≥4GeV/N)-ALUMINIUM NUCLEUS INTERACTIONS. Chinese Physics C, 1984, 8(6): 664-667.

Access

Get Citation

QI XiangRong, HU HaiMing, LI XinHua, HUANG GuangShun, CHEN JiangChuan, HU Tao, JU Xin, LI Jin, MAO ZePu, XUE ShengTian, ZHENG ZhiPeng, ZHOU Li and ZHAO ZhengGuo. R Measurement around s=3.55GeV[J]. Chinese Physics C, 2000, 24(7): 609-615.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1999-07-19
Revised: 1900-01-01

Article Metric

Article Views(4243)
PDF Downloads(669)
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

R Measurement around s=3.55GeV

Corresponding author: QI XiangRong,

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

Received Date: 1999-07-19

Accepted Date: 1900-01-01

Available Online: 2000-07-05

Abstract: Using the data collected with Beijing Spectrometer (BES),we have measured the total cross section for e⁺e^－ annihilation into hadronic final states around center-of-mass energy 3.55 GeV. The values of R,σ (e⁺e^－→hadrons)/σ(e⁺e^－→μ⁺μ^－),are determined with smaller error than the previous result by a factor of two.

HTML

Reference (1)

R Measurement around s=3.55GeV

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article