SEARCH FOR A LIGHT SCALAR TOP SQUARK IN E+E- REACTIONS AT E(CM)=58 GEV

被引：6

作者：

SHIRAI, J

OHMOTO, T

ABE, K

AMAKO, K

ARAI, Y

ARIMA, T

ASANO, Y

CHIBA, M

CHIBA, Y

DAIGO, M

FUKAWA, M

FUKUSHIMA, Y

HABA, J

HANAI, H

HEMMI, Y

HIGUCHI, M

HINODE, F

HIROSE, T

HOMMA, Y

HOSODA, N

ISHIHARA, N

IWATA, Y

KANDA, N

KANEMATSU, N

KANZAKI, J

KIKUCHI, R

KONDO, T

KORHONEN, TT

KRUGER, AE

KURASHIGE, H

MACNAUGHTON, J

MATSUDA, EK

MATSUI, T

MIURA, M

MIYAKE, K

MORI, S

NAGASHIMA, Y

NAKAGAWA, Y

NAKAMURA, T

NAKANO, I

ODAKA, S

OGAWA, K

OHAMA, T

OHSUGI, T

OHYAMA, H

OKAMOTO, A

ONO, A

OYAMA, T

SAKAMOTO, H

SAKUDA, M

机构：

[1] HIROSHIMA UNIV,DEPT PHYS,HIROSHIMA 724,JAPAN

[2] TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN

[3] UNIV TSUKUBA,INST APPL PHYS,TSUKUBA,IBARAKI 305,JAPAN

[4] TOKYO METROPOLITAN UNIV,DEPT PHYS,HACHIOJI 19203,JAPAN

[5] YASUDA WOMENS JR COLL,HIROSHIMA 73101,JAPAN

[6] WAKAYAMA MED COLL,WAKAYAMA 64963,JAPAN

[7] OSAKA UNIV,DEPT PHYS,TOYONAKA,OSAKA 560,JAPAN

[8] KYOTO UNIV,DEPT PHYS,KYOTO 606,JAPAN

[9] TOHOKU GAKUIN UNIV,DEPT APPL PHYS,TAGAJO 985,JAPAN

[10] KOBE UNIV,SCH APPL MED SCI,KOBE 65401,JAPAN

[11] UNIV HELSINKI,HIGH ENERGY PHYS RES INST,SF-00170 HELSINKI 17,FINLAND

[12] OKAYAMA UNIV,DEPT PHYS,OKAYAMA 700,JAPAN

[13] INT CHRISTIAN UNIV,DIV NAT SCI,MITAKA,TOKYO 181,JAPAN

[14] MIYAZAKI UNIV,FAC ENGN,MIYAZAKI 88901,JAPAN

[15] UNIV TSUKUBA,INST PHYS,TSUKUBA,IBARAKI 305,JAPAN

[16] KOBE UNIV,FAC CROSS CULTURAL STUDIES,KOBE 657,JAPAN

[17] IBARAKI COLL TECHNOL,KATSUTA 312,JAPAN

[18] KOGAKUIN UNIV,CTR INFORMAT SCI,TOKYO 16391,JAPAN

[19] TSUKUBA COLL TECHNOL,TSUKUBA 305,JAPAN

[20] NARUTO UNIV EDUC,NARUTO 772,JAPAN

[21] AUSTRIAN ACAD SCI,INST HIGH ENERGY PHYS,A-1050 VIENNA,AUSTRIA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.72.3313

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A search has been made for a light scalar top squark (t1), which has remained unexcluded by previous e+e- experiments up to the Z0 pole. By assuming the decay t1 --> c+Z1 (lightest neutralino), e+e-annihilation data at E(c.m.) = 58 GeV have been analyzed. The number of events comprising large-acoplanarity particle groups is consistent with that expected from known processes. We excluded t1 in the mass range 7.6-28.0 GeV/c2 and Z1 with a mass very close to the kinematical limit at the 95% C.L.

引用

页码：3313 / 3316

页数：4

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