Measurement of the Lambda(b)(0) lifetime using Lambda(b)(0)->Lambda(c)(+)l(-)(nu)over-bar

被引：32

作者：

Abe, F

Akimoto, H

Akopian, A

Albrow, MG

Amendolia, SR

Amidei, D

Antos, J

AnwayWiese, C

Aota, S

Apollinari, G

Asakawa, T

Ashmanskas, W

Atac, M

Azfar, F

AzziBacchetta, P

Bacchetta, N

Badgett, W

Bagdasarov, S

Bailey, MW

Bao, J

deBarbaro, P

BarbaroGaltieri, A

Barnes, VE

Barnett, BA

Barzi, E

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

Berryhill, J

Bertolucci, S

Bhatti, A

Biery, K

Binkley, M

Bisello, D

Blair, RE

Blocker, C

Bodek, A

Bokhari, W

Bolognesi, V

Bortoletto, D

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,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY

[9] HARVARD UNIV,CAMBRIDGE,MA 02138

[10] HIROSHIMA UNIV,HIGASHIHIROSHIMA 724,JAPAN

[11] UNIV ILLINOIS,URBANA,IL 61801

[12] MCGILL UNIV,INST PARTICLE PHYS,MONTREAL,PQ,CANADA

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

[14] JOHNS HOPKINS UNIV,BALTIMORE,MD 21218

[15] LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[16] MIT,CAMBRIDGE,MA 02139

[17] UNIV MICHIGAN,ANN ARBOR,MI 48109

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

[19] UNIV NEW MEXICO,ALBUQUERQUE,NM 87131

[20] OSAKA CITY UNIV,OSAKA 588,JAPAN

[21] UNIV PADUA,IST NAZL FIS NUCL,SEZ PADOVA,I-35131 PADUA,ITALY

[22] UNIV PENN,PHILADELPHIA,PA 19104

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

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

[25] UNIV PITTSBURGH,PITTSBURGH,PA 15260

[26] PURDUE UNIV,W LAFAYETTE,IN 47907

[27] UNIV ROCHESTER,ROCHESTER,NY 14627

[28] ROCKEFELLER UNIV,NEW YORK,NY 10021

[29] RUTGERS STATE UNIV,PISCATAWAY,NJ 08854

[30] ACAD SINICA,TAIPEI 11529,TAIWAN

[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 | 1996年 / 77卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.77.1439

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The lifetime of Lambda(b)(0) is measured using the semileptonic decay Lambda(b)(0)-->Lambda(c)(+)l(-)nu(-), where the Lambda(c)(+) is reconstructed through its decay Lambda(c)(+) --> pK(-)pi(+). The data were collected by the CDF detector at the Tevatron Collider during 1992-1995 and correspond to an integrated luminosity of 110 pb(-1) of <p(p)over bar> collisions at root s=1.8 TeV. From a fit to the decay length distribution of the Lambda(c)-lepton system from 197+/-25 signal events, the lifetime of Lambda(b)(0) is measured to be 1.32+/-0.15+/- 0.07 ps.

引用

页码：1439 / 1443

页数：5

共 20 条

[1] MEASUREMENT OF THE BOTTOM-QUARK PRODUCTION CROSS-SECTION USING SEMILEPTONIC DECAY ELECTRONS IN P(P)OVER-BAR COLLISIONS AT ROOT-S = 1.8 TEV
ABE, F
ALBROW, M
AMIDEI, D
ANWAYWIESE, C
APOLLINARI, G
ATAC, M
AUCHINCLOSS, P
AUSTERN, M
AZZI, P
BADEN, AR
BACCHETTA, N
BADGETT, W
BAILEY, MW
BAMBERGER, A
DEBARBARO, P
BARBAROGALTIERI, A
BARNES, VE
BARNETT, BA
BAUER, G
BAUMANN, T
BEDESCHI, F
BEHRENDS, S
BELFORTE, S
BELLETTINI, G
BELLINGER, J
BENJAMIN, D
BENLLOCH, J
BENSINGER, J
BERETVAS, A
BERGE, JP
BERTOLUCCI, S
BIERY, K
BHADRA, S
BINKLEY, M
BISELLO, D
BLAIR, R
BLOCKER, C
BODEK, A
BOLOGNESI, V
BOOTH, AW
BOSWELL, C
BRANDENBURG, G
BROWN, D
BUCKLEYGEER, E
BUDD, HS
BUSETTO, G
BYONWAGNER, A
BYRUM, KL
CAMPAGNARI, C
CAMPBELL, M
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (04) : 500 - 504
[2] EVIDENCE FOR TOP-QUARK PRODUCTION IN (P)OVER-BAR-P COLLISIONS AT ROOT-S=1.8 TEV
ABE, F
ALBROW, MG
AMENDOLIA, SR
AMIDEI, D
ANTOS, J
ANWAYWIESE, C
APOLLINARI, G
ARETI, H
AUCHINCLOSS, P
AUSTERN, M
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
BOLOGNESI, V
BORTOLETTO, D
BOSWELL, C
BOULOS, T
BRANDENBURG, G
BUCKLEYGEER, E
BUDD, HS
[J]. PHYSICAL REVIEW D, 1994, 50 (05): : 2966 - 3026
[3] THE CDF DETECTOR - AN OVERVIEW
ABE, F
AMIDEI, D
APOLLINARI, G
ASCOLI, G
ATAC, M
AUCHINCLOSS, P
BADEN, AR
BARBAROGALTIERI, A
BARNES, VE
BARSOTTI, E
BEDESCHI, F
BELFORTE, S
BELLETTINI, G
BELLINGER, J
BENSINGER, J
BERETVAS, A
BERGE, P
BERTOLUCCI, S
BHADRA, S
BINKLEY, M
BLAIR, R
BLOCKER, C
BOFILL, J
BOOTH, AW
BRANDENBURG, G
BRENNER, A
BROWN, D
BYON, A
BYRUM, KL
CAMPBELL, M
CAREY, R
CARITHERS, W
CARLSMITH, D
CARROLL, JT
CASHMORE, R
CERVELLI, F
CHADWICK, K
CHAPIN, T
CHIARELLI, G
CHINOWSKY, W
CIHANGIR, S
CLINE, D
CONNOR, D
CONTRERAS, M
COOPER, J
CORDELLI, M
CURATOLO, M
DAY, C
DELFABBRO, R
DELLORSO, M
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1988, 271 (03) : 387 - 403
[4] MEASUREMENT OF THE AVERAGE LIFETIME OF B-HADRONS PRODUCED IN P(P)OVER-BAR COLLISIONS AT ROOT-S = 1.8 TEV
ABE, F
ALBROW, M
AMIDEI, D
ANWAYWIESE, C
APOLLINARI, G
ARETI, H
AUCHINCLOSS, P
AZFAR, F
AZZI, P
BACCHETTA, N
BADGETT, W
BAILEY, MW
BAO, J
DEBARBARO, P
BARBAROGALTIERI, A
BARNES, VE
BARNETT, BA
BAUER, G
BAUMANN, T
BEDESCHI, F
BEHRENDS, S
BELFORTE, S
BELLETTINI, G
BELLINGER, J
BENJAMIN, D
BENLLOCH, J
BERETVAS, A
BERGE, JP
BHATTI, A
BIERY, K
BINKLEY, M
BIRD, F
BISELLO, D
BLAIR, RE
BLOCKER, C
BODEK, A
BOLOGNESI, V
BOSWELL, C
BOULOS, T
BRANDENBURG, G
BUCKLEYGEER, E
BUDD, HS
BURKETT, K
BUSETTO, G
BYONWAGNER, A
BYRUM, KL
CAMPAGNARI, C
CAMPBELL, M
CANER, A
CARITHERS, W
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (21) : 3421 - 3426
[5] INVESTIGATIONS INTO THE ORIGIN OF THE SPURIOUS 17 KEV NEUTRINO SIGNAL OBSERVED IN S-35 BETA-DECAY
BOWLER, MG
JELLEY, NA
[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 68 (03): : 391 - 413
[6] Measurement of the average b-baryon lifetime and the product branching ratio f(b->Lambda(b))center dot BR(Lambda(b)->Lambda l(-)nu)over-bar-X)
Akers, R
Alexander, G
Allison, J
Altekamp, N
Ametewee, K
Anderson, KJ
Anderson, S
Arcelli, S
Asai, S
Axen, D
Azuelos, G
Ball, AH
Barberio, E
Barlow, RJ
Bartoldus, R
Batley, JR
Beaudoin, G
Bechtluft, J
Beck, A
Beck, GA
Beeston, C
Behnke, T
Bell, KW
Bella, G
Bentvelsen, S
Berlich, P
Bethke, S
Biebel, O
Bloodworth, IJ
Bock, P
Bosch, HM
Boutemeur, M
Braibant, S
BrightThomas, P
Brown, RM
Buijs, A
Burckhart, HJ
Burgard, C
Bürgin, R
Capiluppi, P
Carnegie, RK
Carter, AA
Carter, JR
Chang, CY
Charlesworth, C
Charlton, DG
Chu, SL
Clarke, PEL
Clayton, JC
Clowes, SG
[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 69 (02): : 195 - 214
[7] A 2 LEVEL FASTBUS BASED TRIGGER SYSTEM FOR CDF
AMIDEI, D
CAMPBELL, M
FRISCH, H
GROSSOPILCHER, C
HAUSER, J
LISS, T
REDLINGER, G
ROODMAN, A
SANDERS, H
SHOCHET, M
TING, J
TSAI, YD
DELLORSO, M
GIANNETTI, P
RISTORI, L
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1988, 269 (01) : 51 - 62
[8] THE SILICON VERTEX DETECTOR OF THE COLLIDER DETECTOR AT FERMILAB
AMIDEI, D
AZZI, P
BACCHETTA, N
BAILEY, MW
BARNETT, B
BEDESCHI, F
BISELLO, D
BOLOGNESI, V
BOSWELL, C
BUSETTO, G
CARITHERS, WC
CARTER, H
CASTRO, A
DELLAGNELLO, S
DERWENT, PF
DUCAR, R
DUNN, A
ELY, R
FLAUGHER, B
GALEOTTI, S
BARBAROGALTIERI, A
GARFINKEL, AF
HABER, C
HOLLAND, S
HRYCYK, M
HERRUP, D
HUGHES, R
KLEINFELDER, S
LORETI, M
MARIOTTI, M
MATTHEWS, J
MENZIONE, A
MERRICK, T
NELSON, C
PESCARA, L
PRODUIT, N
PUNZI, G
RAFFAELLI, F
RISTORI, L
SCHNEIDER, O
SEGLER, S
SHAPIRO, MD
SHAW, NM
SHAW, T
SKARHA, J
SNIDER, FD
SONG, TY
SPIES, A
TIPTON, P
TKACZYK, S
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 350 (1-2) : 73 - 130
[9] [Anonymous], B DECAYS
[10] EXCLUSIVE NONLEPTONIC DECAYS OF D-MESONS, DS-MESONS AND B-MESONS
BAUER, M
STECH, B
WIRBEL, M
[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (01): : 103 - 115

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