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Abstract:
With GEANT3 frame, we simulate the lead-scintillating fiber type barrel shower counter (BSC) of BESⅢ. The structure of BSC in the simulation is analogous to Φ Factory's, and it's thinkness is 14.4X 0. The simulations show that the shower time information read-out is necessary for improving the Z spatial resolution, the π0 invariant mass resolution and for rejecting fake photons. Also, the energy resolution σ E/E(6%/E), the relation of angle resolution σ with readout granularity and the relations of mass resolution of π0 σ m/m with light yield, attenuation length, readout granularity are given, where m is the invariant mass of π0 reconstructed by two photons.
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[1] |
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, BIAN Jian-Ming
, CAO Guo-Fu
, CAO Xue-Xiang
, CHEN Shen-Jian
, DENG Zi-Yan
, FU Cheng-Dong
, GAO Yuan-Ning
, HE Kang-Lin
, HE Miao
, HUA Chun-Fei
, HUANG Bin
, HUANG Xing-Tao
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, LI Fei
, LI Hai-Bo
, LI Wei-Dong
, LIANG Yu-Tie
, LIU Chun-Xiu
, LIU Huai-Min
, LIU Suo
, LIU Ying-Jie
, MA Qiu-Mei
, MA Xiang
, MAO Ya-Jun
, MO Xiao-Hu
, PAN Ming-Hua
, PANG Cai-Ying
, PING Rong-Gang
, QIN Ya-Hong
, QIU Jin-Fa
, SUN Sheng-Sen
, SUN Yong-Zhao
, WANG Liang-Liang
, WEN Shuo-Pin
,
,
,
,
,
,
. Software alignment of the BESⅢ main drift chamber using the Kalman Filter method. Chinese Physics C,
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