Updated precision measurement of the average lifetime of B hadrons

被引：10

作者：

Abreu, P

Adam, W

Adye, T

Agasi, E

Ajinenko, I

Aleksan, R

Alekseev, GD

Alemany, R

Allport, PP

Almehed, S

Amaldi, U

Amato, S

Andreazza, A

Andrieux, ML

Antilogus, P

Apel, WD

Arnoud, Y

Asman, B

Augustin, JE

Augustinus, A

Baillon, P

Bambade, P

Barate, R

Barbi, M

Barbiellini, G

Bardin, DY

Baroncelli, A

Barring, O

Barrio, JA

Bartl, W

Bates, MJ

Battaglia, M

Baubillier, M

Baudot, J

Becks, KH

Begalli, M

Beilliere, P

Belokopytov, Y

Benvenuti, AC

Berggren, M

Bertrand, D

Bianchi, F

Bigi, M

Bilenky, MS

Billoir, P

Bloch, D

Blume, M

Blyth, S

Bolognese, T

Bonesini, M

机构：

[1] UNIV KARLSRUHE,INST EXPTL KERNPHYS,D-76128 KARLSRUHE,GERMANY

[2] INST NUCL PHYS,PL-30055 KRAKOW,POLAND

[3] STANISLAW STASZIC UNIV MIN & MET,PL-30055 KRAKOW,POLAND

[4] UNIV PARIS 11,ACCELERATEUR LINEAIRE LAB,IN2P3,CNRS,F-91405 ORSAY,FRANCE

[5] UNIV LANCASTER,SCH PHYS & MAT,LANCASTER LA1 4YB,ENGLAND

[6] UNIV LIVERPOOL,DEPT PHYS,LIVERPOOL L69 3BX,MERSEYSIDE,ENGLAND

[7] UNIV PARIS 06,LPNHE,CNRS,IN2P3,F-75252 PARIS 05,FRANCE

[8] UNIV PARIS 07,LPNHE,CNRS,IN2P3,F-75252 PARIS 05,FRANCE

[9] LUND UNIV,DEPT PHYS,S-22363 LUND,SWEDEN

[10] UNIV LYON 1,IPNL,IN2P3,CNRS,F-69622 VILLEURBANNE,FRANCE

[11] UNIV COMPLUTENSE,E-28040 MADRID,SPAIN

[12] UNIV MILAN,DIPARTIMENTO FIS,I-20133 MILAN,ITALY

[13] IST NAZL FIS NUCL,I-20133 MILAN,ITALY

[14] UNIV AIX MARSEILLE 2,CPP,IN2P3,CNRS,F-13288 MARSEILLE 09,FRANCE

[15] NIELS BOHR INST,DK-2100 COPENHAGEN O,DENMARK

[16] CHARLES UNIV,MFF,NUCL CTR,AREAL MFF,CR-18000 PRAGUE 8,CZECH REPUBLIC

[17] NIKHEF H,NL-1009 DB AMSTERDAM,NETHERLANDS

[18] NATL TECH UNIV ATHENS,DEPT PHYS,GR-15773 ATHENS,GREECE

[19] UNIV OSLO,DEPT PHYS,N-1000 OSLO 3,NORWAY

[20] UNIV OVIEDO,DPTO FIS,E-33006 OVIEDO,SPAIN

[21] UNIV OXFORD,DEPT PHYS,OXFORD OX1 3RH,ENGLAND

[22] UNIV PADUA,DIPARTIMENTO FIS,I-35131 PADUA,ITALY

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

[24] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

[25] UNIV ROMA TOR VERGATA,DIPARTIMENTO FIS,I-00173 ROME,ITALY

[26] IST NAZL FIS NUCL,I-00173 ROME,ITALY

[27] CTR ETUD SACLAY,DSM,DAPNIA,F-91191 GIF SUR YVETTE,FRANCE

[28] IST SUPER SANITA,IST NAZL FIS NUCL,I-00161 ROME,ITALY

[29] CSIC,INST FIS CANTABRIA,UC,E-39006 SANTANDER,SPAIN

[30] INST HIGH ENERGY PHYS,PROTVINO,RUSSIA

[31] UNIV LJUBLJANA,JOZEF STEFAN INST,SI-61000 LJUBLJANA,SLOVENIA

[32] UNIV LJUBLJANA,DEPT PHYS,SI-61000 LJUBLJANA,SLOVENIA

[33] UNIV STOCKHOLM,FYSIKUM,S-11385 STOCKHOLM,SWEDEN

[34] UNIV TURIN,DIPARTIMENTO FIS SPERIMENTALE,I-10125 TURIN,ITALY

[35] IST NAZL FIS NUCL,I-10125 TURIN,ITALY

[36] UNIV UDINE,IST FIS,I-33100 UDINE,ITALY

[37] UNIV FED RIO DE JANEIRO,BR-21945970 RIO JANEIRO,BRAZIL

[38] UNIV TRIESTE,DIPARTIMENTO FIS SPERIMENTALE,I-34127 TRIESTE,ITALY

[39] IST NAZL FIS NUCL,I-34127 TRIESTE,ITALY

[40] UNIV UPPSALA,DEPT RADIAT SCI,S-75121 UPPSALA,SWEDEN

[41] CSIC,IFIC,E-46100 BURJASSOT,VALENCIA,SPAIN

[42] UNIV VALENCIA,DFAMN,E-46100 BURJASSOT,VALENCIA,SPAIN

[43] AUSTRIAN ACAD SCI,INST HOCHENERGIEPHYS,A-1050 VIENNA,AUSTRIA

[44] INST NUCL STUDIES,PL-00681 WARSAW,POLAND

[45] UNIV WARSAW,PL-00681 WARSAW,POLAND

[46] UNIV GESAMTHSCH WUPPERTAL,FACHBEREICH PHYS,D-42097 WUPPERTAL 1,GERMANY

[47] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011

[48] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011

[49] UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 WILRIJK,BELGIUM

[50] FREE UNIV BRUSSELS,IIHE,B-1050 BRUSSELS,BELGIUM

来源：

PHYSICS LETTERS B | 1996年 / 377卷 / 1-3期

关键词：

D O I：

10.1016/0370-2693(96)00452-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The measurement of the average lifetime of B hadrons using inclusively reconstructed secondary vertices has been updated using both an improved processing of previous data and additional statistics from new data. This has reduced the statistical and systematic uncertainties and gives tau(B) = 1.582+/-0.011 (stat.)+/-0.027 (syst.) ps. Combining this result with the previous result based on charged particle impact parameter distributions yields tau(B) = 1.575+/-0.010 (stat.)+/-0.026 (syst.) ps.

引用

页码：195 / 204

页数：10

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