The BELLE silicon vertex detector

被引：26

作者：

Alimonti, G

Aihara, H

Alexander, J

Asano, Y

Bakich, A

Bozek, A

Banas, E

Browder, T

Dragic, J

Fukunaga, C

Gordon, A

Guler, H

Everton, C

Heenan, E

Haba, J

Hazumi, M

Hastings, N

Hara, T

Hojo, T

Higuchi, T

Iwai, G

Ishino, H

Jalocha, P

Korotuschenko, K

Kaneko, J

Kapusta, P

Kawasaki, T

Lange, JS

Li, Y

Marlow, D

Moloney, G

Moffitt, L

Mori, S

Matsubara, T

Nakadaira, T

Nakamura, T

Natkaniec, Z

Okuno, S

Olsen, S

Ostrowicz, W

Palka, H

Peak, LS

Ryuko, J

Rózanska, M

Sevior, M

Shimada, J

Sumisawa, K

Stock, R

Stanic, S

Swain, S

机构：

[1] High Energy Accelerator Res Org, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan

[2] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[3] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA

[4] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

[5] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[6] Inst Nucl Phys, PL-30055 Krakow, Poland

[7] Univ Melbourne, Sch Phys, Parkville, Vic 3079, Australia

[8] Tokyo Metropolitan Univ, Grad Sch Sci, Hachioji, Tokyo 1920397, Japan

[9] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

[10] Niigata Univ, Dept Phys, Niigata 9502181, Japan

[11] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[12] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[13] Univ Frankfurt, Inst Nucl Phys, D-60054 Frankfurt, Germany

[14] Kanagawa Univ, Fac Engn, Yokohama, Kanagawa 2218686, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 453卷 / 1-2期

关键词：

B-factory; BELLE; silicon vertex detector; radiation tolerance; impact parameter;

D O I：

10.1016/S0168-9002(00)00608-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A silicon vertex detector has been developed for the BELLE experiment at the KEK B-factory to be used to determine the relative displacements of B-meson decay vertices for CP violation measurements. The device has been successfully installed and operated with high-luminosity beam conditions. The average strip yield is larger than 96%, including the preamplifier electronics yield and the detector is currently working stably with a signal-to-noise ratio of 17-40. The measured impact parameter resolution agrees with expectations based on Monte Carlo simulations, and the measured D-0 lifetime is in good agreement with the particle data roup's average of other measurements. Several B --> J/psiK events produced at the Y(4S) resonance have been detected and separate decay vertices have been found. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：71 / 77

页数：7

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