A Study of Mixing Event Method in Relativistic Heavy Ion Collision Experiments

FENG Sheng-Qin; LIU Lian-Shou

Chinese Physics C> 2003, Vol. 27> Issue(4) : 349-353

A Study of Mixing Event Method in Relativistic Heavy Ion Collision Experiments

FENG Sheng-Qin ^, ,
LIU Lian-Shou

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

Abstract
HTML
Reference
Related

PDF

Abstract：
A new mixing event method is developed in the analysis of relativistic heavy ion collision experiments with a relatively complicated background by using RQMD (Relativistic Quantum Molecular Dynamics) as input data sample. The proposed method is then applied to the study of invariant mass distribution of Δ⁺⁺ resonance as an example. A new iterative algorithm is also proven by providing the invariant mass spectra of Δ⁺⁺'s using different algorithms for the combinatorial background subtraction.

References

[1]

. Bertsch G F ,Das Gupta S .Phys.Rep.,1997,160:189 2. Cassing W ,Niita K ,Wang S J. Z .Phys.,1998,A331:439 3. Cassing W ,Metag V ,Mosel U et al.Phys.Rep.,1990,188:363 4. Aichelin J .Phys.Rep.,1991,202:233 5. Bass S A ,Hartnack C ,Stocker H et al.Phys.Rev.,1994,C50:2167 6. Brockmann R ,Harris J W ,Sandoval A et al.Phys.Rev.Lett.,1984,53:2012 7. Barrette J et al (E814 Collaboration).Phys.Lett.,1995,B351:93 8. Goldhaber G et al.Phys.Rev.Lett.,1959,3:181;Goldhaber G et al.Phys.Rev.,1960,120:300 9. Hanbury Brown R ,Twiss R Q .Philos,Mag,1954,45:663 10. Acton P D et al (OPAL Collaboration).Z .Phys.,1993,C68:207 11. Jack B V .Nucl.Phys.,1995,A590:215c 12. Agababyan N M et al (NA22 Collaboration).Z .Phys.,1996,C71:409 13. Sorge H .Z .Phys.1995,C67:497;Sorge H .Phys.Rev.,1995,C52:3291

[1]	A.G.Drentje . Gas-mixing: Ion Cooling or Reduced Turbulent Heating?. Chinese Physics C, 2007, 31(S1): 162-164.
[2]	GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
[3]	HUANG Wen-Xue , WANG Yue , ZHU Zhi-Chao , TIAN Yu-Lin , XU Hu-Shan , SUN Zhi-Yu , XIAO Guo-Qing , ZHAN Wen-Long . Experimental Study of the High-Voltage Breakdown and Simulations for the RFQ Cooler and Buncher RFQ1L. Chinese Physics C, 2006, 30(S2): 261-264.
[4]	LIU Chang-Long , LU Yi-Ying , YIN LI . Effects of Additional Vacancy-Like Defects Produced by Ion Impealations on Boron Thermal Diffusion in Silicon. Chinese Physics C, 2005, 29(11): 1107-1111.
[5]	LI Ming-Liang , ZHU Sheng-Jiang , CHE Xing-Lai , YU Ying-Nan . Research on Two-Quasiparticle Bands in ⁹⁸Sr. Chinese Physics C, 2004, 28(S1): 75-77.
[6]	ZHOU Yong-Zhao , LIANG Hao , XUE Jun-Dong , CHEN Yi-Xin , YANG Tao , GONG Da-Tao , JIN Ge , YU Xiao-Qi . An Online Program for Monitoring KLOE Experiment. Chinese Physics C, 2002, 26(6): 620-625.
[7]	Guo Hua . In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C, 1999, 23(5): 459-468.
[8]	Yang Jianjun , Ma Boqiang , Li Guanglie . Non-perturbative Quark Propagator and the Study of the Non-trivial Q² Dependence in the Nucleon Structure Functions. Chinese Physics C, 1997, 21(2): 146-156.
[9]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.
[10]	WU Zhong-Li . ANALYSIS OF THE MOMENTUM DISTRIBUTION WIDTH OF THE PREOJECTILE-LIKE-FRAGMENT FROM HEAVY ION COLLISIONS. Chinese Physics C, 1989, 13(8): 752-754.
[11]	Sa Ben-hao , Zhang Xi-zhen , Li Zhu-xia , Shi Yi-jin . A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C, 1980, 4(3): 398-400.

Access

Get Citation

FENG Sheng-Qin and LIU Lian-Shou. A Study of Mixing Event Method in Relativistic Heavy Ion Collision Experiments[J]. Chinese Physics C, 2003, 27(4): 349-353.

FENG Sheng-Qin and LIU Lian-Shou. A Study of Mixing Event Method in Relativistic Heavy Ion Collision Experiments[J]. Chinese Physics C, 2003, 27(4): 349-353. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-05-27
Revised: 1900-01-01

Article Metric

Article Views(3435)
PDF Downloads(670)
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

A Study of Mixing Event Method in Relativistic Heavy Ion Collision Experiments

FENG Sheng-Qin ^,
LIU Lian-Shou

Corresponding author: FENG Sheng-Qin,

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

Received Date: 2002-05-27
Accepted Date: 1900-01-01
Available Online: 2003-04-05

Abstract: A new mixing event method is developed in the analysis of relativistic heavy ion collision experiments with a relatively complicated background by using RQMD (Relativistic Quantum Molecular Dynamics) as input data sample. The proposed method is then applied to the study of invariant mass distribution of Δ⁺⁺ resonance as an example. A new iterative algorithm is also proven by providing the invariant mass spectra of Δ⁺⁺'s using different algorithms for the combinatorial background subtraction.