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7 papers · 1 filter
The Two Loop Long Range Effect on the Proton Decay Effective Lagrangian
Takeshi Nihei, Jiro Arafune
We calculate the two loop long range effect on the proton decay effective Lagrangian. Numerical calculation for suppression factor gives 2-loop for the value of t…
Induced Violation of Weak Equivalence Principle in the Brans-Dicke Theory
Yasunori Fujii
A quantum correction to the Brans-Dicke theory due to interactions among matter fields is calculated, resulting in violation of WEP, hence giving a constraint on the parameter …
Gravitino Decay into a Neutrino and a Sneutrino in the Inflationary Universe
M. Kawasaki, T. Moroi
Gravitino produced in the inflationary universe are studied. When the gravitino decays into a neutrino and a sneutrino, the emitted high energy neutrinos scatter off the background…
Gravity in --Dimensional Quantum Gravity
Jun Nishimura, Shinya Tamura, Asato Tsuchiya
We study gravity in --dimensional quantum gravity. Taking care of the oversubtraction problem in the conformal mode dynamics, we perform a full order calculation of st…
Flavor mixing in the gluino coupling and the nucleon decay
Toru Goto, Takeshi Nihei, Jiro Arafune
Flavor mixing in the quark-squark-gluino coupling is studied for the minimal SU(5) SUGRA-GUT model and applied to evaluation of the nucleon lifetime. All off-diagonal (generation m…
Gravitino Production in the Inflationary Universe and the Effects on Big-Bang Nucleosynthesis
M. Kawasaki, T. Moroi
Gravitino production and decay in the inflationary universe are reexamined. Assuming that the gravitino mainly decays into a photon and a photino, we calculate the upperbound on th…