Extensive particle identification with TPC and TOF at the STAR experiment

被引：91

作者：

Shao, M ^{[1
]}

Barannikova, O

Dong, X

Fisyak, Y

Ruan, LJ

Sorensen, P

Xu, ZB

机构：

[1] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[2] Brookhaven Natl Lab, Upton, NY 11973 USA

[3] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA

[4] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 558卷 / 02期

基金：

中国国家自然科学基金;

关键词：

particle identification; TOF; TPC; dE/dx; STAR;

D O I：

10.1016/j.nima.2005.11.251

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Particle identification (PID) capabilities are studied by using the Time Projection Chamber (TPC) and a Time-Of-Flight (TOF) detector together at STAR. The identification capability of charged hadrons is greatly extended compared with that achieved by TPC and TOF separately. Particle spectra from p + p, d + Au collisions at root S-NN = 200 GeV and Au + Au collisions at root S-NN = 62.4 GeV are used to develop the methods. The transverse momentum ()T) ranges of pi, and p(p) identification are from similar to 0.3GeV/c to similar to 10GeV/c. The high p(T) reach is limited by statistics in current data sets. An important conceptual advance was developed to identify electrons by using a combination of dE/dx in TPC and velocity information from the TOF detectors, which is important for future low-mass dilepton program at STAR. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：419 / 429

页数：11

共 18 条

[11]

JOHNSON I, 2002, THESIS UC DAVIS

[12] The TOFp/pVPD time-of-flight system for STAR [J].

Llope, W ;

Geurts, F ;

Mitchell, JW ;

Liu, Z ;

Adams, N ;

Eppley, G ;

Keane, D ;

Li, J ;

Liu, F ;

Mutchler, GS ;

Nussbaum, T ;

Bonner, B ;

Sappenfield, P ;

Zhang, B ;

Zhang, WM .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 522 (03) :252-273

[13] π, K, p and (p)over-bar production from Au+Au collisions at √sNN=62.4 GeV [J].

Ruan, LJ .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2005, 31 (06) :S1029-S1033

[14] Pion, kaon and (anti-)proton production in Au plus Au collisions at √sNN=62.4 GeV [J].

Shao, M .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2005, 31 (04) :S85-S92

[15] Beam test results of two kinds of multi-gap resistive plate chambers [J].

Shao, M ;

Ruan, LJ ;

Chen, HF ;

Wu, J ;

Li, C ;

Xu, ZZ ;

Wang, XL ;

Huang, SL ;

Wang, ZM ;

Zhang, ZP .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 492 (03) :344-350

[16] K0s, Λ and (Λ)over-bar measurements from 62.4 GeV Au+Au collisions in STAR [J].

Takahashi, J .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2005, 31 (06) :S1061-S1064

[17] π± spectra in Au plus Au collisions at √SNN=62.4 GeV [J].

Xu, ZB .

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2005, 20 (16) :3783-3785

[18] A new type of resistive plate chamber: The multigap RPC [J].

Zeballos, EC ;

Crotty, I ;

Hatzifotiadou, D ;

Valverde, JL ;

Neupane, S ;

Williams, MCS ;

Zichichi, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 374 (01) :132-135

← 1 2 →