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

LV Yan; YANG Li-Jian; YANG Li-Ping; MAO Tian

Chinese Physics C> 2001, Vol. 25> Issue(11) : 1077-1083

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

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

Abstract
HTML
Reference
Related

PDF

Abstract：
On the basis of "cone" jet algorithm, a Monte Carlo study of the properties of (mini) jets in high energy hadron hadron collsions is carried out. Using the "jetty frame", in which the momentum of jet is chosen as Z axis, the distributions of physical quantities inside jets multiplicity, pseudorapidity, azimuthal angle and transverse momentum are obtained. The pseudorapidity distribution is asymetric, concentrating in the forward direction, which means that all the particles in the jet are moving forward in the direction of the total momentum of jet. This is further proved by a particle momenta plot in the axial coordinate which shows that the jets look like sharp arrows with small forward pointing feathers at the ends. The transverse momentum distribution for the event sample with respect to the direction of incident hadrons diviates from an exponential distribution considerably, in consistent with the productuon of (mini )jets, while that inside jets with respect to the jet axis is basically an exponential. This means that the production of (mini ) jets is hard process, while the developement of jets is basically soft. These results show that "cone algorithm" is an effective method for the study of hard and semi hard processes in high energy hadron hadron and relativistic heavy ion collisions. It is found through the comparison of the distributions in jetty events and no jet events that E_t=2GeV is a more reasonable cut for the "cone algorithm" in finding jets.

References

[1]

. LIU LianShou,WU YuanFang.Multiparticle Productionin High Energy Collisions.Shanghai:Science and Technique Publisher of Shanghai,1998(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)2. Arnison G et al(UA1 Collab).Phys.Lett.,1982,B118:1673. Arnison G et al(UA1 Collab).Phys.Lett.,1983,B123:1154. Ciapetti(UA1 Collab).〈pt〉CHDependenceon Event Multiplicityin Minimum Bias Events at the SPS Collider,Proc.5th Topical Workshop on Proton Antiproton Collider Physics,eds.Greco M ,1985 5. Harris J W .Nucl.Phys.,1994,A566:277 6. Kajantie K ,Landshoff P V ,Lindfors J. Phys.Rev.Lett.,1987,59:2527 7. Wang X N .Phys.Reports,1997,280:2878. Gyulassy M ,PluｍｅｒＭ.Phys.Lett.,1990,B243:4329. Gyulassy M et al.Nucl.Phys.,1992,A538:3710. Wang X N ,Huang Z ,Sarcevic I.Phys.Rev.Lett.,1996,77:231 11. Sj strand T .Comp.Phys.Commun.,1994,82:7412. LIUMing et al.High Energy Phys.and Nucl.Phys.,1997,21:138(in Chinese)(刘明等.高能物理与核物理,1997,21:138) 13. WU YuanFang,LIU LianShou.Phys.Rev.,1990,D41:845

[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]	SHAN Qing , WU Jian , WANG Xiao-Lian , CHEN Hong-Fang , ZHANG Yi-Fei , ZHANG Zi-Ping , SHAO Ming . Upper Limit of the Yield of Di-Omega in Central Au-Au Collision at Snn=200GeV with HIJING. Chinese Physics C, 2005, 29(12): 1146-1149.
[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]	ZHANG Han-Zhong , WANG En-Ke . Suppression of Dihadron Production with Jet Quenching in A+A Collisions. Chinese Physics C, 2004, 28(9): 967-972.
[5]	QIU You-Heng , DENG Li , YING Yang-Jun . Mix Mesh Sizes Arithmetic Research of BNCT Dose Rate Calculations by Monte Carlo Method. Chinese Physics C, 2004, 28(6): 669-674.
[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]	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]	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.
[9]	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.
[10]	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.
[11]	GUO Yuan-Yuan , ZENG Jie , YIN Jian-Wu . Monte Carlo Study of the Dynamical Fluctuation Properties inside Jets in High Energy Hadron-Hadron Collisions. Chinese Physics C, 2001, 25(11): 1084-1088.
[12]	SONG Hong-Qiu , ZHANG Li-Liang , SU Ru-Keng , WANG Ping . Strange Hadronic Matter in A Chiral Model. Chinese Physics C, 2000, 24(S1): 95-99.
[13]	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.
[14]	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.
[15]	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.
[16]	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.
[17]	LI Zhi-Bing , ZHONG Chao-Wu , CHEN Tian-Lun , HUANG Wu-Qun . MONTE CARLO RENORMALIZATION GROUP STUDY OF φ⁴ MODEL. Chinese Physics C, 1988, 12(1): 23-27.
[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

LV Yan, YANG Li-Jian, YANG Li-Ping and MAO Tian. Monte Carlo Study of the Properties of Jets in High Energy Hadron-Hadron Collisions[J]. Chinese Physics C, 2001, 25(11): 1077-1083.

LV Yan, YANG Li-Jian, YANG Li-Ping and MAO Tian. Monte Carlo Study of the Properties of Jets in High Energy Hadron-Hadron Collisions[J]. Chinese Physics C, 2001, 25(11): 1077-1083. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2000-12-04
Revised: 1900-01-01

Article Metric

Article Views(2925)
PDF Downloads(597)
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 Properties of Jets in High Energy Hadron-Hadron Collisions

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

Received Date: 2000-12-04

Accepted Date: 1900-01-01

Available Online: 2001-11-05

Abstract: On the basis of "cone" jet algorithm, a Monte Carlo study of the properties of (mini) jets in high energy hadron hadron collsions is carried out. Using the "jetty frame", in which the momentum of jet is chosen as Z axis, the distributions of physical quantities inside jets multiplicity, pseudorapidity, azimuthal angle and transverse momentum are obtained. The pseudorapidity distribution is asymetric, concentrating in the forward direction, which means that all the particles in the jet are moving forward in the direction of the total momentum of jet. This is further proved by a particle momenta plot in the axial coordinate which shows that the jets look like sharp arrows with small forward pointing feathers at the ends. The transverse momentum distribution for the event sample with respect to the direction of incident hadrons diviates from an exponential distribution considerably, in consistent with the productuon of (mini )jets, while that inside jets with respect to the jet axis is basically an exponential. This means that the production of (mini ) jets is hard process, while the developement of jets is basically soft. These results show that "cone algorithm" is an effective method for the study of hard and semi hard processes in high energy hadron hadron and relativistic heavy ion collisions. It is found through the comparison of the distributions in jetty events and no jet events that E_t=2GeV is a more reasonable cut for the "cone algorithm" in finding jets.

HTML

Reference (1)

Monte Carlo Study of the Properties of 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

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

HTML

目录