Efficiency Correction in the Measurement of ψ′→pp Angular Distribution

JIAO Jian-Bin; ZHU Yong-Sheng; ZHANG Xue-Yao

Chinese Physics C> 2006, Vol. 30> Issue(10) : 931-935

Efficiency Correction in the Measurement of ψ′→pp Angular Distribution

Shandong University, Ji'nan 250100, China2 Institute of High Energy Physics, CAS, Beijing 100049, China

Abstract
HTML
Reference
Related

PDF

Abstract：
In the angular distribution measurement of ψ′→pp, the sample of J/ψ→pp selected from 58M J/ψ events with high statistics is used to determine the polar angle dependent efficiency, and to correct the Monte Carlo efficiency in ψ′→pp. The systematic error of this method is also analyzed. The obtained efficiencies and related errors are used for the measurement of angular distribution of ψ′→pp.

References

[1]

. Brodsky S J, Lepage G P. Phys. Rev., 1981, D24: 28482. Claudson M, Glashow S L, Wise M B. Phys. Rev., 1982, D25: 13453. Carimalo C. Int. J. Mod. Phys., 1985, A2: 2494. AmbrogianiM et al(E835 Collab). Phys. Lett., 2005, B610: 177-1825. MO X H et al. HEP NP, 2004, 28: 4556. Feldman G J, Perl M L. Phys. Rept., 1977, 33: 285-3657. Brandelik R et al(DASP Collab). Z. Phys., 1979, C1: 233-2568. BAI J Z et al(BES Collab). Phys. Rev., 2001, D63: 0320029. Pedlar T K et al(CLEO Collab). Phys. Rev., 2005, D72: 05110810. Aubert B et al(BABAR Collab). Phys. Rev., 2006, D73: 01200511. FANG S S et al. HEP NP, 2003, 27(4): 27712. BAI J Z et al(BES Collab). Phys. Lett., 2004, B591: 42-4813. Eidelman S et al(Particle Data Group). Phys. Lett., 2004, B592: 114. CHEN J C et al. Phys. Rev., 2000, D62: 034003; Nucl.Sci. Eng., 1984, 88: 551; Ranft J, Ritter S. Z. Phys., 1983, C20: 347; Fasso A et al. FLUKA 92, Proceedings of theWorkshop on Simulating Accelerator Radiation Environ-ment, Santa Fe, 1993

[1]	YANG Hong-Xun (for the BESⅡ collaboration) . Partial wave analysis of J/ψ→ppπ⁰ and measurement of J/ψ→ppη, ppη´. Chinese Physics C, 2009, 33(12): 1331-1335. doi: 10.1088/1674-1137/33/12/048
[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]	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.
[4]	PENG Quan-Ling , SUN Jian , ZHAO Guang-Yuan , SHI Cai-Tu . Principle and Software Design of Helmhotz Coil Measurement System. Chinese Physics C, 2001, 25(9): 920-925.
[5]	Guo Hua . In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C, 1999, 23(5): 459-468.
[6]	Yu Hong , Shen Qixing , Zhang Lin . Angular Distribution of Process e⁺e^－→τ⁺τ^－,τ^－→a₁υτ,a₁→ρπ and Characteristics of a₁ Meson. Chinese Physics C, 1994, 18(7): 583-590.
[7]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.
[8]	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.
[9]	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

JIAO Jian-Bin, ZHU Yong-Sheng and ZHANG Xue-Yao. Efficiency Correction in the Measurement of ψ′→pp Angular Distribution[J]. Chinese Physics C, 2006, 30(10): 931-935.

JIAO Jian-Bin, ZHU Yong-Sheng and ZHANG Xue-Yao. Efficiency Correction in the Measurement of ψ′→pp Angular Distribution[J]. Chinese Physics C, 2006, 30(10): 931-935. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-03-07
Revised: 2006-03-27

Article Metric

Article Views(2152)
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

Efficiency Correction in the Measurement of ψ′→pp Angular Distribution

Corresponding author: JIAO Jian-Bin,

Shandong University, Ji'nan 250100, China2 Institute of High Energy Physics, CAS, Beijing 100049, China

Received Date: 2006-03-07
Accepted Date: 2006-03-27
Available Online: 2006-10-05

Abstract: In the angular distribution measurement of ψ′→pp, the sample of J/ψ→pp selected from 58M J/ψ events with high statistics is used to determine the polar angle dependent efficiency, and to correct the Monte Carlo efficiency in ψ′→pp. The systematic error of this method is also analyzed. The obtained efficiencies and related errors are used for the measurement of angular distribution of ψ′→pp.