- Abstract:
-
The branching fractions for τ→eνντ, μνντ, and hντ are measured using data collected with the CLEO detector at the CESR e+e- collider: Be=0.1776±0.0006±0.0017, Bμ=0.1737±0.0008±0.0018, and Bh=0.1152±0.0005±0.0012, where the first error is statistical, the second systematic, and h refers to either a charged π or K. Also measured is the τ mass, mτ=(1778.2±1.4) MeV. Lepton universality is affirmed by the relative branching fractions (Bμ/Be=0.9777±0.0063±0.0087, Bh/Be=0.6484±0.0041±0.0060) and the...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1103/PhysRevD.55.2559
-
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- Journal:
- PHYSICAL REVIEW D
- Volume:
- 55
- Issue:
- 5
- Pages:
- 2559-2576
- Publication date:
- 1997-03-01
- DOI:
- EISSN:
-
1089-4918
- ISSN:
-
0556-2821
- URN:
-
uuid:c4490ba0-090c-423a-a83b-a004cc04efb3
- Source identifiers:
-
25916
- Local pid:
- pubs:25916
- Copyright date:
- 1997
Journal article
Experimental tests of lepton universality in tau decay
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