Monte Carlo Study of the Dynamical Fluctuation Properties inside Jets in High Energy Hadron-Hadron Collisions

GUO Yuan-Yuan; ZENG Jie; YIN Jian-Wu

Chinese Physics C> 2001, Vol. 25> Issue(11) : 1084-1088

Monte Carlo Study of the Dynamical Fluctuation Properties inside Jets in High Energy Hadron-Hadron Collisions

Institute of Particle Physics,Huazhong Normal University,Wuhan 430079,China2 Department of Physics,Huanggang Teacher's College,Hubei 438000,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The dynamical fluctuations inside jets in the p-p collisions at CERN SppS collider are studied using Monte Carlo method. The event sample is produced using the LUND Monte Carlo generator PYTHIA5.5(JETSET7.3). The jets are identified by "cone" jet algorithm. The vector sum of the momenta of all the particles inside a jet is defined as the axis of this jet. Rapidity y,transverse momentum p_t and azimuzal angle φ are defined with respect to this axis. Second order factorial moments are calculated for these variables and the Hurst exponents H_ij=lnλ/lnλ_j(1+γ_j)/(1+γ_i) are obtained. The results show that H_ypt≈0.74,H_yφ≈0.82 both are less than unity,while H_ptφ≈1.11 is near to unity. This means that the dynamical fluctuations inside jets have approximately the similar property as those in fixed target hadron hadron collisions at SPS, i.e. anisotropic in the longitudinal transverse directions while isotropic in the transverse plan.

References

[1]

. De Wolf E A ,Dremin I M ,Kittel W .Phys.Rep.,1996,270:1;LIU Lian-Shou,WU Yuan-Fang. Multiparticle Productionin High Energy Collision. Shanghai:Scienceand Technique Publisher of Shanghai,1998.100—128(in Chinese)(刘连寿,吴元芳.高能碰撞多粒子产生.上海:上海科学技术出版社,1998.100—128) 2. Ochs W .Phys.Lett.,1990,B247:1013. Arnison G et al (UA1 Collab.).Phys.Lett.,1982,B118:167 4. Arnison G et al (UA1 Collab.).Phys.Lett.,1983,123:1155. Ciapetti(UA1Collab.).Proc.5th Topical Workshop on Proton Antiproton Collider Physics,eds.Greco M ,1985 6. Harris J W .Nucl Phys.,1994,A566:2777. Kajantie K ,Landshoff P V ,Lindfors J. Phys.Rev.Lett.,1987,59:25278. WANG X N .Phys.Rep.,1997,280:287 9. Gyulassy M ,PlｍｅｒＭ.Phys.Lett.,1990,B243:432 10. GyulassyMetal.Nucl.Phys.,1992,A538:3711. WANG X N ,HUAN G Z ,Sarcevic I.Phys.Rev.Lett.,1996,77:231 12. Sj strand T .Comp.Phys.Commun,1994,82:74 13. LIU Ming,LIU Feng(young),LIU Feng et al.HEP NP ,1997,21:138(in Chinese)(刘明,柳峰,刘峰等.高能物理与核物理,1997,21:138) 14. LU Yan,YANG LiJian,YANG LiPing et al.HEP NP ,2001,25(11):1077—1083(in Chinese)(吕,杨利建,杨丽平等.高能物理与核物理,2001,25(11):1077—1083) 15. Ochs W .Phys.Lett.,1990,B347:10116. Bialas A ,Peschanski R .Nucl.Phys.,1986,B273:703;1988,B308:857 17. WU YuanFang,LIU LianShou.Sciencein China,1995,A38:435 18. LIU LianShou,ZHANG Yang,DENG Yue.Zeit.Phys.,1997,C73:535

[1]	SHI Shu-Su , LIU Lian-Shou . A Monte Carlo Study on the Expansion of Hadronic Gas in Relativistic Heavy Ion Collisions. Chinese Physics C, 2007, 31(1): 56-58.
[2]	Shin Muroya . Transport Coefficients of Relativistic Causal Hydrodynamics for Hadrons. Chinese Physics C, 2007, 31(12): 1162-1164.
[3]	XU Ming-Mei . A Monte Carlo Study on Event-by-Event Transverse Momentum Fluctuation at RHIC. Chinese Physics C, 2005, 29(9): 892-895.
[4]	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.
[5]	ZHANG Kun-Shi , CHEN Gang , YU Mei-Ling , LIU Lian-Shou . Monte Carlo Study on the Properties of Gluon and Quark Jets. Chinese Physics C, 2002, 26(11): 1110-1116.
[6]	YIN Jian-Wu , LIU Feng . On the Dynamical Fluctuations in the Production and Evolusion of Jets in High Energy Hadron-Hadron Collisions. Chinese Physics C, 2002, 26(5): 477-483.
[7]	YIN Jian-Wu , LIU Feng , LIU Lian-Shou . Self-Affine Analysis for the Dynamical Fluctuations inside Jets Produced in High Energy Hadron-Hadron Collisions. Chinese Physics C, 2002, 26(2): 152-157.
[8]	ZHANG Kun-Shi , YIN Jian-Wu , CHEN Gang , LIU Chao , LIU Lian-Shou . Monte Carlo Study for the Dynamical Fluctuations Inside a Single Jet in 2-Jet Events. Chinese Physics C, 2002, 26(2): 158-163.
[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]	ZHAO Xi , HUANG BangRong , ZHAO ShuSong . Dynamical Structure of Hadron Emission Sources. Chinese Physics C, 2000, 24(11): 1011-1017.
[11]	Fu Jinghua , Wu Yuanfang , Liu Lianshou . Multifractal Dimension and Dynamical Fluctuation Strength in High Energy Multiparticle Final States. Chinese Physics C, 1999, 23(10): 992-997.
[12]	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.
[13]	Liu Feng(Y) , Liu Feng . Comparison of the Hard and Soft Processes in High Energy Hadron-Hadron Colisions. Chinese Physics C, 1997, 21(4): 330-339.
[14]	Zhang Yang , Deng Yue , Liu Lianshou . On the Constraint of Transverse Momentum Conservation to Dynamic Fluctuations in High Energy Collisions. Chinese Physics C, 1997, 21(2): 130-137.
[15]	Ren Jingru , Lu Suiling , Wang Chengrui , He Mao , Zhang Naijian , Cao Peiyuan , Li Jinyu , Wang Sh , Wang izhi , Wang Mingxing . Attenuation of High Energy Hadrons in Iron. Chinese Physics C, 1996, 20(5): 405-408.
[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]	WU Yuan-Fang , LIU Lian-Shou . INVESTIGATION OF THE HIGH ENERGY LIMIT IN HADRON-HADRON COLLISION USING MEM. Chinese Physics C, 1989, 13(9): 808-813.
[18]	HUANG Wu-Qun , CHEN Tian-Lun , ZHONG Chao-Wu , LI Zhi-Bing . A MONTE CARLO RENORMALIZATION GROUP STUDY OF A 2-DIMENSIONAL TRIANGULAR LATTICE. Chinese Physics C, 1987, 11(1): 38-43.
[19]	HUANG Wu-Qun , CHEN Tian-Lun , SHEN Qin-Wan , ZHONG Chao-Wu . A MONTE CARLO RENORMALIZATION GROUP STUDY OF ISING MODEL ON RANDOM TRIANGLE LATTICE. Chinese Physics C, 1987, 11(4): 563-566.
[20]	CHANG CHAO-XI . ON STRUCTURE OF MULTIPARTICLES IN QUARK JETS FOR e⁺e^- COLLIDING. Chinese Physics C, 1982, 6(1): 123-128.

Access

Get Citation

GUO Yuan-Yuan, ZENG Jie and YIN Jian-Wu. Monte Carlo Study of the Dynamical Fluctuation Properties inside Jets in High Energy Hadron-Hadron Collisions[J]. Chinese Physics C, 2001, 25(11): 1084-1088.

GUO Yuan-Yuan, ZENG Jie and YIN Jian-Wu. Monte Carlo Study of the Dynamical Fluctuation Properties inside Jets in High Energy Hadron-Hadron Collisions[J]. Chinese Physics C, 2001, 25(11): 1084-1088. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2000-12-11
Revised: 1900-01-01

Article Metric

Article Views(4819)
PDF Downloads(582)
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

Monte Carlo Study of the Dynamical Fluctuation Properties inside Jets in High Energy Hadron-Hadron Collisions

Corresponding author: GUO Yuan-Yuan,

Institute of Particle Physics,Huazhong Normal University,Wuhan 430079,China2 Department of Physics,Huanggang Teacher's College,Hubei 438000,China

Received Date: 2000-12-11

Accepted Date: 1900-01-01

Available Online: 2001-11-05

Abstract: The dynamical fluctuations inside jets in the p-p collisions at CERN SppS collider are studied using Monte Carlo method. The event sample is produced using the LUND Monte Carlo generator PYTHIA5.5(JETSET7.3). The jets are identified by "cone" jet algorithm. The vector sum of the momenta of all the particles inside a jet is defined as the axis of this jet. Rapidity y,transverse momentum p_t and azimuzal angle φ are defined with respect to this axis. Second order factorial moments are calculated for these variables and the Hurst exponents H_ij=lnλ/lnλ_j(1+γ_j)/(1+γ_i) are obtained. The results show that H_ypt≈0.74,H_yφ≈0.82 both are less than unity,while H_ptφ≈1.11 is near to unity. This means that the dynamical fluctuations inside jets have approximately the similar property as those in fixed target hadron hadron collisions at SPS, i.e. anisotropic in the longitudinal transverse directions while isotropic in the transverse plan.

HTML

Reference (1)

Monte Carlo Study of the Dynamical Fluctuation Properties inside Jets in High Energy Hadron-Hadron Collisions

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article