MEASUREMENT OF THE B-S MESON LIFETIME

被引：0

作者：

ABE, F

ALBROW, MG

AMENDOLIA, SR

AMIDEI, D

ANTOS, J

ANWAYWIESE, C

APOLLINARI, G

ARETI, H

ATAC, M

AUCHINCLOSS, P

AZFAR, F

AZZI, P

BACCHETTA, N

BADGETT, W

BAILEY, MW

BAO, J

DEBARBARO, P

BARBAROGALTIERI, A

BARNES, VE

BARNETT, BA

BARTALINI, P

BAUER, G

BAUMANN, T

BEDESCHI, F

BEHRENDS, S

BELFORTE, S

BELLETTINI, G

BELLINGER, J

BENJAMIN, D

BENLLOCH, J

BENSINGER, J

BENTON, D

BERETVAS, A

BERGE, JP

BERTOLUCCI, S

BHATTI, A

BIERY, K

BINKLEY, M

BIRD, F

BISELLO, D

BLAIR, RE

BLOCKER, C

BODEK, A

BOKHARI, W

BOLOGNESI, V

BORTOLETTO, D

BOSWELL, C

BOULOS, T

BRANDENBURG, G

BROMBERG, C

机构：

[1] ARGONNE NATL LAB,ARGONNE,IL 60439

[2] UNIV BOLOGNA,IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY

[3] BRANDEIS UNIV,WALTHAM,MA 02254

[4] UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024

[5] UNIV CHICAGO,CHICAGO,IL 60637

[6] DUKE UNIV,DURHAM,NC 27708

[7] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

[8] IST NAZL FIS NUCL,NAZL FRASCATI LAB,I-00044 FRASCATI,ITALY

[9] HARVARD UNIV,CAMBRIDGE,MA 02138

[10] UNIV ILLINOIS,URBANA,IL 61801

[11] MCGILL UNIV,INST PARTICLE PHYS,MONTREAL,PQ H3A 2T8,CANADA

[12] UNIV TORONTO,TORONTO,ON M5S 1A7,CANADA

[13] JOHNS HOPKINS UNIV,BALTIMORE,MD 21218

[14] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[15] MIT,CAMBRIDGE,MA 02139

[16] UNIV MICHIGAN,ANN ARBOR,MI 48109

[17] MICHIGAN STATE UNIV,E LANSING,MI 48824

[18] UNIV NEW MEXICO,ALBUQUERQUE,NM 87131

[19] OSAKA CITY UNIV,OSAKA 588,JAPAN

[20] UNIV PADUA,IST NAZL FIS NUCL,I-35131 PADUA,ITALY

[21] UNIV PENN,PHILADELPHIA,PA 19104

[22] UNIV PITTSBURGH,PITTSBURGH,PA 15260

[23] UNIV PISA,IST NAZL FIS NUCL,I-56100 PISA,ITALY

[24] SCUOLA NORMALE SUPER PISA,I-56100 PISA,ITALY

[25] PURDUE UNIV,W LAFAYETTE,IN 47907

[26] UNIV ROCHESTER,ROCHESTER,NY 14627

[27] ROCKEFELLER UNIV,NEW YORK,NY 10021

[28] RUTGERS STATE UNIV,PISCATAWAY,NJ 08854

[29] ACAD SINICA,TAIPEI 11529,TAIWAN

[30] SUPERCONDUCTING SUPER COLLIDER LAB,DALLAS,TX 75237

[31] TEXAS A&M UNIV,COLLEGE STN,TX 77843

[32] TEXAS TECH UNIV,LUBBOCK,TX 79409

[33] UNIV TSUKUBA,TSUKUBA,IBARAKI 305,JAPAN

[34] TUFTS UNIV,MEDFORD,MA 02155

[35] UNIV WISCONSIN,MADISON,WI 53706

[36] YALE UNIV,NEW HAVEN,CT 06511

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.74.4988

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The lifetime of the Bs meson is measured using the semileptonic decay Bs→Ds-+νX. The data sample consists of 19.3 pb-1 of pp̄ collisions at s=1.8 TeV collected by the Collider Detector at Fermilab during 1992-1993. There are 76±8 +Ds- signal events where the Ds is identified via the decay Ds-→φπ-, φ→K+K-. Using these events, the Bs meson lifetime is determined to be τs=1.42-0.23+0.27(stat)±0.11(syst) ps. A measurement of the Bs lifetime in a low statistics sample of exclusive Bs→J/ψ φ decays is also presented in this paper. © 1995 The American Physical Society.

引用

页码：4988 / 4992

页数：5

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