Chinese Physics C > 2003, Vol. 27 > Issue(1): 7-11

Scale for the Production of Jets in High Energy e⁺e^－Collisions

LIN Xiao-Yan,
LIU Lian-Shou^,

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The scale for visible jets produced in e ⁺e ^－Collisions is studied in some details using Monte Carlo method. It is demonstrated, based on the historical fact that the 3-jet events were firstly observed in e+ e- experiments at √ S=17—30GeV,and the relative transverse momentum for visible jets is in the region k _t,～5—10GeV/c. It is further shown, using a concrete example, that the number of jets in an event could be correctly evaluated only when k _tis in this region. The dynamical fluctuations inside jets determined through different values of k _tare compared carefully. It turns out that only when k _t,～5—10GeV/c the dynamical fluctuations inside jets will possess the best anomalous scaling property. The relation between the scale 5-10GeV/c of visible jets and the scale 1-2GeV of perturbative QCD is discussed.

References

[1]

Sterman G, Weinberg S. Phys. Rev. Lett.1977,39:14362 Dokshitzer Yu L. J Phys. 1991,617:15373 Ali A, Barreiro F. Jets in Annihilatio and QCD. In:Eds. Ali A,Soding P. High Energy Electron-Positron Physics. Singapore; World Sci-entific.1988. 612-6944 Hanson G et al. Phys. Rev. Lett., 1975,35:16095 Brandelik R et al (TASSO Coll.)Phys. Lett., 1979 , B86 : 243 ; Barber D. P(Mark J Coll.).Phys . Rev . Lett ., 1979, 43: 830; Berger Ch et al(PLUTO Coll.).Phys. Lett., 1979 , B86 : 418 ; Bartel W et al ( JADE Coll.). Phys. Lett.,1980,B91:L426 Dokshitzer Yu L,Leder G D,Moretti S et al. JHEP,1997,08;0017 Sjtistrand. Comp. Phys. Comm., 1992,67:4658 LIU Lian-Shou, CHEN Gang, FU Jing-Hua. Phys. Rev., 2001, D63:osaoo29 ZHANG Kun-Shi, YIN Jian-Wu, CHEN Gang et al. HEPNP,2002,:ls8(m Chinese);ZHANG Kun-Shi.CHEN Gang.YU Mei-Iang et al. A Monte Carlo Study on the Dynamical Fluctuations Inside Quark and An-tiquark Jets. HEP-ph/0203098(张昆实, 尹建武, 陈刚等.高能物理与核物理, 2002.26:1S8)10 LIU Lian-Shou. Phase Space Partition in High Energy Collisions, HEP- PH/020400311 Bjorken J D. Geometry of Multihadron Production, Proc. XXN Intem.Symp. on Multiparticle Dynamics, Vietri sul Mare, 1994, Eds. A. Gio-vannini et al. Singapore;World Scientific,199s.57912 Bialas A,Peschanski R. Nucl. Phys., 1986,B273:703;1988,308:85713 Ochs W.Z. Phys., 1991, C50; 339; Bialas A, Gazdzichi M. Phys. Lett ., 1990,B252:483

[1]	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.
[2]	PEI Guo-Xi,SUN Yao-Lin,LIU Jin-Tong,CHI Yun-Long,LIU Yu-Cheng,LIU Nian-Zong. BEPCⅡ Positron Source. Chinese Physics C, 2006, 30(1): 66-70.
[3]	LIU Jin-Tong,GEN Zhe-Qiao,SUN Xian-Jing,SUN Yao-Lin,PEI Guo-Xi. Development of the BEPCⅡ Positron Source Flux Concentrator. Chinese Physics C, 2005, 29(4): 404-407.
[4]	WANG Shu-Hong,JIN Kai,ZHOU Feng. TESLA TW Positron Injector Linac and Beam Modeling. Chinese Physics C, 2005, 29(5): 495-500.
[5]	KONG Wei,XI Chuan-Ying,YE Bang-Jiao,WENG Hui-Min,ZHOU Xian-Yi,HAN Rong-Dian. Two-Detector Doppler Broadening of Annihilation Radiation in Metals. Chinese Physics C, 2004, 28(11): 1234-1237.
[6]	XING Xiu-Wen,ZHONG Wei-Li,LIU Lian-Shou. A Monte Carlo Study of the Fractal Property inside Jets Produced in High Energy e⁺e^－Collisions. Chinese Physics C, 2003, 27(2): 95-98.
[7]	WANG Shu-Hong,WANG Jiu-Qing,YE Qiang,LE Qi. Minimization of Primary Electron Beam Radius at the Positron Production Target. Chinese Physics C, 2002, 26(12): 1302-1308.
[8]	GOU Wei-Ping,PEI Guo-Xi. Design of BEPCⅡ Positron Source. Chinese Physics C, 2002, 26(3): 279-285.
[9]	LV Yan,YANG Li-Jian,YANG Li-Ping,MAO Tian. Monte Carlo Study of the Properties of Jets in High Energy Hadron-Hadron Collisions. Chinese Physics C, 2001, 25(11): 1077-1083.
[10]	Liu Ming,Liu Feng(Y),Liu Feng,Liu Lianshou. On the Methods of Jet Identification in High Energy Collsions. Chinese Physics C, 1997, 21(2): 138-145.
[11]	Huang Maorong,Wang Yunyu,Yang Juhua,He Yongshu,Guo Yinghuan,Sun Tonghan. Study on InP Doped With Sulphur and Under DifferentTemperatures by Positron Annihilation. Chinese Physics C, 1996, 20(12): 1097-1102.
[12]	He Yuanjin,Xin Mingrui,Zhang Tianbao. Measurement of Characteristic Positron Annihilation Lifetime in HgCdTe. Chinese Physics C, 1994, 18(8): 752-756.
[13]	GUO Xue-Zhe,WENG Hui-Min,HAN Rong-Dian. The Observation of Positron Surface State of Germanium. Chinese Physics C, 1992, 16(11): 961-964.
[14]	WU Ji-Min. Electron,Positron Distribution Function. Chinese Physics C, 1992, 16(6): 518-526.
[15]	PEI Guo-Xi,XIE Jia-Lin,ZHOU Shu,SUN Song-Lan. OPTIMIZATION OF BEPC POSITRON SOURCE. Chinese Physics C, 1990, 14(2): 110-117.
[16]	XIONG Liang-Yue,LONG Qi-Wei. POSITRON DISLOCATION TRAPPING MODEL INCLUDING THE EFFECTS OF DETRAPPING OF POSITRON FROM DISLOCATIONS. Chinese Physics C, 1990, 14(9): 769-776.
[17]	SHEN Ji-Qiang,LONG Qi-Wei,ZHOU Jin,WANG Ke-Lin. ATOMIC DENSITY DISTRIBUTIONS OF GRAIN BOUNDARIES IN METALS AND CHARACTERISTICS OF POSITRON ANNIHILATION LIFETIME SPECTRA. Chinese Physics C, 1989, 13(10): 879-885.
[18]	XIONG Liang-Yue. A PHENOMENOLOGICAL MODEL FOR POSITRON TRAPPING AT DISLOCATIONS. Chinese Physics C, 1988, 12(4): 433-439.
[19]	XIONG Xing-Min. A STUDY OF DEFECTS DEFECTS IN GaAs BY POSITRON ANNIHILATION. Chinese Physics C, 1986, 10(4): 459-465.
[20]	XIE Jia-Lin. ON THE AVERAGE LUMINOSITY OF ELECTRON POSITRON COLLIDER AND POSITRON-PRODUING ENERGY. Chinese Physics C, 1985, 9(5): 577-585.

Access

Get Citation

LIN Xiao-Yan and LIU Lian-Shou. Scale for the Production of Jets in High Energy e ⁺e ^－Collisions[J]. Chinese Physics C, 2003, 27(1): 7-11.

LIN Xiao-Yan and LIU Lian-Shou. Scale for the Production of Jets in High Energy e ⁺e ^－Collisions[J]. Chinese Physics C, 2003, 27(1): 7-11. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-04-25
Revised: 1900-01-01

Article Metric

Article Views(5315)
PDF Downloads(779)
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

Scale for the Production of Jets in High Energy e⁺e^－Collisions

Corresponding author:LIU Lian-Shou,

Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China

Received Date:2002-04-25

Accepted Date:1900-01-01

Available Online:2003-01-05

Abstract:The scale for visible jets produced in e⁺e^－Collisions is studied in some details using Monte Carlo method. It is demonstrated, based on the historical fact that the 3-jet events were firstly observed in e+ e- experiments at √S=17—30GeV,and the relative transverse momentum for visible jets is in the region k_t,～5—10GeV/c. It is further shown, using a concrete example, that the number of jets in an event could be correctly evaluated only when k_tis in this region. The dynamical fluctuations inside jets determined through different values of k_tare compared carefully. It turns out that only when k_t,～5—10GeV/c the dynamical fluctuations inside jets will possess the best anomalous scaling property. The relation between the scale 5-10GeV/c of visible jets and the scale 1-2GeV of perturbative QCD is discussed.

HTML

Reference (1)

Scale for the Production of Jets in High Energy e⁺e^－Collisions

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article