CHARGED KAON PRODUCTION IN TAU-DECAYS AT LEP

被引：17

作者：

ABREU, P

ADAM, W

ADYE, T

AGASI, E

AJINENKO, I

ALEKSAN, R

ALEKSEEV, GD

ALLPORT, PP

ALMEHED, S

ALMEIDA, FML

ALVSVAAG, SJ

AMALDI, U

ANDREAZZA, A

ANTILOGUS, P

APEL, WD

APSIMON, RJ

ARNOUD, Y

ASMAN, B

AUGUSTIN, JE

AUGUSTINUS, A

BAILLON, P

BAMBADE, P

BARAO, F

BARATE, R

BARBIELLINI, G

BARDIN, DY

BARKER, GJ

BARONCELLI, A

BARRING, O

BARRIO, JA

BARTL, W

BATES, MJ

BATTAGLIA, M

BAUBILLER, M

BAUDOT, J

BECKS, KH

BEGALLI, M

BEILLIERE, P

BELTRAN, P

BENVENUTI, AC

BERGGREN, M

BERTRAND, D

BIANCHI, F

BIGI, M

BILENSKY, MS

BILLOIR, P

BJARNE, J

BLOCH, D

BLOCKI, J

BLYTH, S

机构：

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

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

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

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

[5] INFN,I-20133 MILAN,ITALY

[6] NIELS BOHR INST,DK-2100 COPENHAGEN 0,DENMARK

[7] CHARLES UNIV,NC MFF,CS-18000 PRAGUE 8,CZECH REPUBLIC

[8] NIKHEF H,1009 DB AMSTERDAM,NETHERLANDS

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

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

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

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

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

[14] INFN,I-35131 PADUA,ITALY

[15] PONTIFICIA UNIV CATOLICA,DEPT FIS,BR-22453 RIO JANEIRO,BRAZIL

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

[17] UNIV ROMA,DIPARTIMENTO FIS,I-00173 ROME,ITALY

[18] CENS,DSM,DAPNIA,F-91191 GIF SUR YVETTE,FRANCE

[19] IST REGINA ELENA,IST SUPER SANITA,I-00161 ROME,ITALY

[20] UNIV CANTABRIA,CSIC,CEAFM,E-39006 SANTANDER,SPAIN

[21] PROTVINO HIGH ENERGY PHYS INST,PROTVINO,RUSSIA

[22] UNIV LJUBLJANA,J STEFAN INST,61000 LJUBLJANA,SLOVENIA

[23] UNIV LJUBLJANA,DEPT PHYS,61000 LJUBLJANA,SLOVENIA

[24] UNIV STOCKHOLM,S-11385 STOCKHOLM,SWEDEN

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

[26] INFN,I-10125 TURIN,ITALY

[27] UNIV TRIESTE,DIPARTIMENTO FIS,I-34127 TRIESTE,ITALY

[28] INFN,I-34127 TRIESTE,ITALY

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

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

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

[32] UNIV VALENCIA,IFIC,CSIC,E-46100 BURJASSOT,SPAIN

[33] OSTERR AKAD WISSENSCH,INST HOCHENERGIEPHYS,A-1050 VIENNA,AUSTRIA

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

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

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

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

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

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

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

[41] ULB,IIHE,B-1050 BRUSSELS,BELGIUM

[42] UNIV ETAT MONS,FAC SCI,B-7000 MONS,BELGIUM

[43] UNIV ATHENS,PHYS LAB,GR-10680 ATHENS,GREECE

[44] UNIV BERGEN,DEPT PHYS,N-5007 BERGEN,NORWAY

[45] UNIV BOLOGNA,DIPARTIMENTO FIS,I-40126 BOLOGNA,ITALY

[46] INFN,I-40126 BOLOGNA,ITALY

[47] COLL FRANCE,PHYS CORPUSCULAIRE LAB,IN2P3,CNRS,F-75231 PARIS 05,FRANCE

[48] CERN,CH-1211 GENEVA 23,SWITZERLAND

[49] ULB,CNR,IN2P3,CNRS,F-67037 STRASBOURG,FRANCE

[50] NCSR,INST NUCL PHYS,GR-15310 ATHENS,GREECE

来源：

PHYSICS LETTERS B | 1994年 / 334卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)90711-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Kaon production in one prong tau decays has been studied using data collected with the DELPHI detector at the LEP collider. Charged kaons were identified over a large momentum range by the DELPHI barrel Ring Imaging Cherenkov detector. The following branching ratios have been determined: BR(tau --> Knu(T)) = (0.85 +/- 0.18) %, BR(tau --> Knu(tau) greater-than-or-equal-to 0 neutrals) = (1.54 +/- 0.24) %, BR(tau --> Knu(tau) greater-than-or-equal-to 1 neutrals) = (0.69 +/- 0.25) %. The result for the exclusive branching ratio is consistent with the Standard Model prediction based on tau - mu - e universality. In addition, tau decay into K*- was studied in the channel K*- --> K- pi0. The result BR(tau --> K*-nu(tau)) x BR(K*- --> K- pi0) = (0.57 +/- 0.23)% was obtained.

引用

页码：435 / 449

页数：15