TY - JOUR
T1 - A phenomenological comparison of conventional and supersymmetric guts
AU - Ellis, John
AU - Nanopoulos, D. V.
AU - Rudaz, Serge
PY - 1982/7/12
Y1 - 1982/7/12
N2 - We compare the phenomenological predictions of grand unified theories (GUTs) and supersymmetric (susy) GUTs for nucleon decays, sin2θW and mb/mτ. Conventional GUTs are consistent with experiment for all three of these observables. In contrast with previous analyses, we find that susy GUTs have problems with sin2θW, but not with mb/mτ or the experimental lower limit on the nucleon lifetime. Susy GUTs may cause nucleon decays with an observable lifetime: in the simplest SU(5) susy GUT we find Γ(N→ντK) ≫ Γ(N→νμK) ≫ Γ(N→νπ, μ+K) ≫ Γ(N→μ+π) ≫ Γ(N→e+K) ≫ Γ(N→e+π).
AB - We compare the phenomenological predictions of grand unified theories (GUTs) and supersymmetric (susy) GUTs for nucleon decays, sin2θW and mb/mτ. Conventional GUTs are consistent with experiment for all three of these observables. In contrast with previous analyses, we find that susy GUTs have problems with sin2θW, but not with mb/mτ or the experimental lower limit on the nucleon lifetime. Susy GUTs may cause nucleon decays with an observable lifetime: in the simplest SU(5) susy GUT we find Γ(N→ντK) ≫ Γ(N→νμK) ≫ Γ(N→νπ, μ+K) ≫ Γ(N→μ+π) ≫ Γ(N→e+K) ≫ Γ(N→e+π).
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U2 - 10.1016/0550-3213(82)90220-6
DO - 10.1016/0550-3213(82)90220-6
M3 - Article
AN - SCOPUS:49049129999
SN - 0550-3213
VL - 202
SP - 43
EP - 62
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 1
ER -