TY - JOUR
T1 - Strong coupling, unification, and recent data
AU - Langacker, Paul
AU - Polonsky, Nir
PY - 1995
Y1 - 1995
N2 - The prediction of strong coupling assuming (supersymmetric) coupling constant unification is reexamined. We find, using the new electroweak data, s(MZ)0.1290.010. The implications of the large s value are discussed. The role played by the Z quark width is stressed. It is also emphasized that high-energy (but not low-energy) corrections could significantly diminish the prediction. However, unless higher-dimension operators are assumed to be suppressed, at present one cannot place strong constraints on the superheavy spectrum. Nonleading electroweak threshold corrections are also discussed.
AB - The prediction of strong coupling assuming (supersymmetric) coupling constant unification is reexamined. We find, using the new electroweak data, s(MZ)0.1290.010. The implications of the large s value are discussed. The role played by the Z quark width is stressed. It is also emphasized that high-energy (but not low-energy) corrections could significantly diminish the prediction. However, unless higher-dimension operators are assumed to be suppressed, at present one cannot place strong constraints on the superheavy spectrum. Nonleading electroweak threshold corrections are also discussed.
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U2 - 10.1103/PhysRevD.52.3081
DO - 10.1103/PhysRevD.52.3081
M3 - Article
AN - SCOPUS:33744686253
SN - 1550-7998
VL - 52
SP - 3081
EP - 3086
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
IS - 5
ER -