A measurement of the τ- → μ- (ν)over-barμντ branching ratio

被引：14

作者：

Abbiendi, G ^{[1
]}

Ainsley, C

Åkesson, PF

Alexander, G

Allison, J

Amaral, P

Anagnostou, G

Anderson, KJ

Arcelli, S

Asai, S

Axen, D

Azuelos, G

Bailey, I

Barberio, E

Barlow, RJ

Batley, RJ

Bechtle, P

Behnke, T

Bell, KW

Bell, PJ

Bella, G

Bellerive, A

Benelli, G

Bethke, S

Biebel, O

Bloodworth, IJ

Boeriu, O

Bock, P

Bonacorsi, D

Boutemeur, M

Braibant, S

Brigliadori, L

Brown, RM

Buesser, K

Burckhart, HJ

Campana, S

Carnegie, RK

Caron, B

Carter, AA

Carter, JR

Chang, CY

Charlton, DG

Csilling, A

Cuffiani, M

Dado, S

Dallison, S

De Roeck, A

De Wolf, EA

Desch, K

Dienes, B

机构：

[1] Univ Bologna, Dipartmento Fis, I-40126 Bologna, Italy

[2] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[3] Ist Nazl Fis Nucl, I-40126 Bologna, Italy

[4] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

[5] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

[6] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[7] Carleton Univ, Dept Phys, Ottawa Carleton Inst Phys, Ottawa, ON K1S 5B6, Canada

[8] CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland

[9] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[10] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[11] Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany

[12] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[13] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[14] Queen Mary Univ London, London E1 4NS, England

[15] Tech Hsch Aachen, Inst Phys 3, D-52056 Aachen, Germany

[16] UCL, London WC1E 6BT, England

[17] Univ Manchester, Schuster Lab, Dept Phys, Manchester M13 9PL, Lancs, England

[18] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[19] Univ Montreal, Phys Nucl Lab, Montreal, PQ H3C 3J7, Canada

[20] Univ Oregon, Dept Phys, Eugene, OR 97403 USA

[21] CLRC, Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[22] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

[23] Tel Aviv Univ, Dept Phys & Astron, IL-69978 Tel Aviv, Israel

[24] Univ Tokyo, Int Ctt Elementary Particle Phys, Tokyo 1130033, Japan

[25] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[26] Kobe Univ, Kobe, Hyogo 6578501, Japan

[27] Weizmann Inst Sci, Particle Phys Depet, IL-76100 Rehovot, Israel

[28] Univ Hamburg, DESY, Inst Expt Phys, D-22607 Hamburg, Germany

[29] Univ Victoria, Dept Phys, Victoria, BC V8W 3P6, Canada

[30] Univ British Columbia, Dept Phys, Vancouver, BC V6T 1Z1, Canada

[31] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

[32] Res Inst Particle & Nucl Phys, H-1525 Budapest, Hungary

[33] Inst Nucl Res, H-4001 Debrecen, Hungary

[34] Univ Munich, Sekt Phys, D-85748 Garching, Germany

[35] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[36] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[37] TRIUMF, Vancouver, BC V6T 2A3, Canada

[38] Inst Nucl Res, H-4001 Debrecen, Hungary

[39] Univ Debrecen, Dept Expt Phys, Debrecen, Hungary

[40] MPI Munchen, Munich, Germany

[41] Res Inst Particle & Nucl Phys, Budapest, Hungary

[42] CERN, Div EP, CH-1211 Geneva 23, Switzerland

[43] Stanislaw Staszic Univ Min & Met, PL-30059 Krakow, Poland

来源：

PHYSICS LETTERS B | 2003年 / 551卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(02)03020-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The tau(-) --> mu(-)(nu) over bar (mu)nu(tau) branching ratio has been measured using data collected from 1990 to 1995 by the OPAL detector at the LEP collider. The resulting value of B (tau(-) --> mu-(nu) over bar (mu)nu(tau))= 0. 1734 +/- 0.0009(stat) +/- 0.0006(syst) has been used in conjunction with other OPAL measurements to test lepton universality, yielding the coupling constant ratios g(mu)/g(e) = 1.0005 +/- 0.0044 and g(tau)/g(e) = 1.0031 +/- 0.0048, in good agreement with the Standard Model prediction of unity. A value for the Michel parameter eta = 0.004 +/- 0.037 has also been determined and used to find a limit for the mass of the charged Higgs boson, m(H)+/- > 1.28 tan beta, in the Minimal Supersymmetric Standard Model. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：35 / 48

页数：14

共 27 条

[1] A measurement of the τ-→e-(ν)over-bareντ branching ratio
Abbiendi, G
Ackerstaff, K
Alexander, G
Allison, J
Altekamp, N
Anderson, KJ
Anderson, S
Arcelli, S
Asai, S
Ashby, SF
Axen, D
Azuelos, G
Ball, AH
Barberio, E
Barlow, RJ
Bartoldus, R
Batley, JR
Baumann, S
Bechtluft, J
Behnke, T
Bell, KW
Bella, G
Bellerive, A
Bentvelsen, S
Bethke, S
Betts, S
Biebel, O
Biguzzi, A
Bird, SD
Blobel, V
Bloodworth, IJ
Bock, P
Böhme, J
Bonacorsi, D
Boutemeur, M
Braibant, S
Bright-Thomas, P
Brigliadori, L
Brown, RM
Burckhart, HJ
Capiluppi, P
Carnegie, RK
Carter, AA
Carter, JR
Chang, CY
Charlton, DG
Chrisman, D
Ciocca, C
Clarke, PEL
Clay, E
[J]. PHYSICS LETTERS B, 1999, 447 (1-2) : 134 - 146
[2] Measurement of the branching ratio for the process b→τ-(ν)over-barτX
Abbiendi, G
Ainsley, C
Åkesson, PF
Alexander, G
Allison, J
Anagnostou, G
Anderson, KJ
Arcelli, S
Asai, S
Axen, D
Azuelos, G
Bailey, I
Barberio, E
Barlow, RJ
Batley, RJ
Behnke, T
Bell, KW
Bell, PJ
Bella, G
Bellerive, A
Bethke, S
Biebel, O
Bloodworth, IJ
Boeriu, O
Bock, P
Böhme, J
Bonacorsi, D
Boutemeur, M
Braibant, S
Brigliadori, L
Brown, RM
Burckhart, HJ
Cammin, J
Carnegie, RK
Caron, B
Carter, AA
Carter, JR
Chang, CY
Charlton, DG
Clarke, PEL
Clay, E
Cohen, I
Couchman, J
Csilling, A
Cuffiani, M
Dado, S
Dallavalle, GM
Dallison, S
De Roeck, A
De Wolf, EA
[J]. PHYSICS LETTERS B, 2001, 520 (1-2) : 1 - 10
[3] Precise determination of the Z resonance parameters at LEP:: "Zedometry"
Abbiendi, G
Ainsley, C
Akesson, PF
Alexander, G
Allison, J
Anagnostou, G
Anderson, KJ
Arcelli, S
Asai, S
Ashby, SF
Axen, D
Azuelos, G
Bailey, I
Ball, AH
Barberio, E
Barlow, RJ
Behnke, T
Bell, KW
Bella, G
Bellerive, A
Benelli, G
Bentvelsen, S
Beeston, C
Bethke, S
Biebel, O
Bloodworth, IJ
Boeriu, O
Bock, P
Böhme, J
Bonacorsi, D
Boutemeur, M
Braibant, S
Bright-Thomas, P
Brigliadori, L
Brown, RM
Burckhart, HJ
Cammin, J
Capiluppi, P
Carnegie, RK
Caron, B
Carter, AA
Carter, JR
Chang, CY
Charlton, DG
Clarke, PEL
Clay, E
Cohen, I
Conboy, JE
Cooke, OC
Couchman, J
[J]. EUROPEAN PHYSICAL JOURNAL C, 2001, 19 (04): : 587 - 651
[4] Measurement of the one-prong hadronic tau branching ratios at LEP
Ackerstaff, K
Alexander, G
Allison, J
Altekamp, N
Anderson, KJ
Anderson, S
Arcelli, S
Asai, S
Ashby, SF
Axen, D
Azuelos, G
Ball, AH
Barberio, E
Barlow, RJ
Bartoldus, R
Batley, JR
Baumann, S
Bechtluft, J
Beeston, C
Behnke, T
Bell, AN
Bell, KW
Bella, G
Bentvelsen, S
Bethke, S
Betts, S
Biebel, O
Biguzzi, A
Bird, SD
Blobel, V
Bloodworth, IJ
Bloomer, JE
Bobinski, M
Bock, P
Bonacorsi, D
Boutemeur, M
Braibant, S
Brigliadori, L
Brown, RM
Burckhart, HJ
Burgard, C
Burgin, R
Capiluppi, P
Carnegie, RK
Carter, AA
Carter, JR
Chang, CY
Charlton, DG
Chrisman, D
Clarke, PEL
[J]. EUROPEAN PHYSICAL JOURNAL C, 1998, 4 (02): : 193 - 206
[5] Measurement of the Michel parameters in leptonic tau decays
Ackerstaff, K
Alexander, G
Allison, J
Altekamp, N
Anderson, KJ
Anderson, S
Arcelli, S
Asai, S
Ashby, SF
Axen, D
Azuelos, G
Ball, AH
Barberio, E
Barlow, RJ
Bartoldus, R
Batley, JR
Baumann, S
Bechtluft, J
Behnke, T
Bell, KW
Bella, G
Bentvelsen, S
Bethke, S
Betts, S
Biebel, O
Biguzzi, A
Bird, SD
Blobel, V
Bloodworth, IJ
Bobinski, M
Bock, P
Böhme, J
Boutemeur, M
Braibant, S
Bright-Thomas, P
Brown, RM
Burckhart, HJ
Burgard, C
Bürgin, R
Capiluppi, P
Carnegie, RK
Carter, AA
Carter, JR
Chang, CY
Charlton, DG
Chrisman, D
Ciocca, C
Clarke, PEL
Clay, E
Cohen, I
[J]. EUROPEAN PHYSICAL JOURNAL C, 1999, 8 (01): : 3 - 21
[6] MEASUREMENT OF THE TAU-TOPOLOGICAL BRANCHING RATIOS AT LEP
ACTON, PD
ALEXANDER, G
ALLISON, J
ALLPORT, PP
ANDERSON, KJ
ARCELLI, S
ASTBURY, A
AXEN, D
AZUELOS, G
BAHAN, GA
BAINES, JTM
BALL, AH
BANKS, J
BARKER, GJ
BARLOW, RJ
BARNETT, S
BATLEY, JR
BEAUDOIN, G
BECK, A
BECKER, J
BEHNKE, T
BELL, KW
BELLA, G
BERLICH, P
BETHKE, S
BIEBEL, O
BINDER, U
BLOODWORTH, IJ
BOCK, P
BODEN, B
BOSCH, HM
BOUGEROLLE, S
BREUKER, H
BROWN, RM
BRUN, R
BUIJS, A
BURCKHART, HJ
CAPILUPPI, P
CARNEGIE, RK
CARTER, AA
CARTER, JR
CHANG, CY
CHARLTON, DG
CLARKE, PEL
COHEN, I
COLLINS, WJ
CONBOY, JE
COOPER, M
COUCH, M
COUPLAND, M
[J]. PHYSICS LETTERS B, 1992, 288 (3-4) : 373 - 385
[7] AHMET K, 1991, NUCL INSTRUM METH A, V305, P275
[8] AKERS R, 1995, Z PHYS C PART FIELDS, V66, P543, DOI 10.1007/BF01579629
[9] MEASUREMENT OF THE Z0 LINE-SHAPE PARAMETERS AND THE ELECTROWEAK COUPLINGS OF CHARGED LEPTONS
ALEXANDER, G
[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1991, 52 (02): : 175 - 207
[10] Improved measurement of the lifetime of the tau lepton
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
Beeston, C
Behnke, T
Bell, AN
Bell, KW
Bella, G
Bentvelsen, S
Berlich, P
Bethke, S
Biebel, O
Blobel, V
Bloodworth, IJ
Bloomer, JE
Bock, P
Bosch, HM
Boutemeur, M
Bouwens, BT
Braibant, S
BrightThomas, P
Brown, RM
Burckhart, HJ
Burgard, C
Burgin, R
Capiluppi, P
Carnegie, RK
Carter, AA
Carter, JR
Chang, CY
Charlesworth, C
Charlton, DG
Chrisman, D
Chu, SL
Clarke, PEL
Cohen, I
[J]. PHYSICS LETTERS B, 1996, 374 (04) : 341 - 350

← 1 2 3 →