Z-]B(B)OVER-BAR AND Z-]C(C)OVER-BAR AS TESTS OF THE STANDARD MODEL AND THE MASS OF THE HIGGS-BOSON

Authors
SAMUEL MA
Citation
Ma. Samuel, Z-]B(B)OVER-BAR AND Z-]C(C)OVER-BAR AS TESTS OF THE STANDARD MODEL AND THE MASS OF THE HIGGS-BOSON, Nuclear physics. B, 1997, pp. 184-187
Citations number
10
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. B → ACNP
ISSN journal
05503213
Year of publication
1997
Supplement
55A
Pages
184 - 187
Database
ISI
SICI code
0550-3213(1997):<184:ZAZATO>2.0.ZU;2-G
Abstract
We consider the decays Z --> b (b) over bar and Z - c (c) over bar as tests of the Standard Model (SM). We find that R-b = 0.2145 and R-c = 0.1719. Comparing with recent experimental measurements, we find that R-b(exp) is too high by only (1.4 sigma) and R-c(exp) is too low by on ly (0.1 sigma).