Measurement of the one-prong hadronic tau branching ratios at LEP

被引：21

作者：

Ackerstaff, K ^{[1
]}

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

机构：

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

[2] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy

[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] Cavendish Lab, Cambridge CB3 0HE, England

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

[8] Carleton Univ, Ctr Res Particle Phys, Ottawa, ON K1S 5B6, Canada

[9] CERN, European Org Particle Phys, CH-1211 Geneva 23, Switzerland

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

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

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

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

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

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

[16] TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[17] Univ London Univ Coll, London WC1E 6BT, England

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

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

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

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

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

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

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

[25] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo 113, Japan

[26] Univ Tokyo, Dept Phys, Tokyo 113, Japan

[27] Kobe Univ, Kobe, Hyogo 657, Japan

[28] Brunel Univ, Uxbridge UB8 3PH, Middx, England

[29] Weizmann Inst Sci, Particle Phys Dept, IL-76100 Rehovot, Israel

[30] Univ Hamburg, DESY, Inst Expt Phys 2, D-22607 Hamburg, Germany

[31] Univ Victoria, Dept Phys, Victoria, BC V6T 1Z1, Canada

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

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

[34] Duke Univ, Dept Phys, Durham, NC 27708 USA

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

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

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

来源：

EUROPEAN PHYSICAL JOURNAL C | 1998年 / 4卷 / 02期

关键词：

D O I：

10.1007/s100520050197

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The branching ratios of the tau(-) --> h(-) nu(tau), tau(-) --> h(-) pi(0)nu(tau) and tau(-) --> h(-) greater than or equal to 2 pi(0)nu(tau) decays have been measured using the 1991-1995 data recorded with the OPAL detector at LEP. These branching ratios are measured simultaneously using three selection criteria and are found to he BR(tau(-) --> h(-) nu(tau)) = (11.98 +/- 0.13 +/- 0.16) %, BR(tau(-) --> h(-)pi(0)nu(tau)) = (25.89 +/- 0.17 +/- 0.29)% BR(tau- --> h(-) greater than or equal to 2 pi(0)nu(tau)) = (9.91 +/- 0.31 +/- 0.27)% where the first error is statistical and the second is systematic.

引用

页码：193 / 206

页数：14

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