Journal article icon

Journal article

Experimental tests of lepton universality in tau decay

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

Actions


Access Document


Publisher copy:
10.1103/PhysRevD.55.2559

Authors


Expand authors...
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

Terms of use


Metrics


Views and Downloads






If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP