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14 papers · 1 filter
Observing Virtual LSPs at LEP II
Amitava Datta, Aseshkrishna Datta, Sreerup Raychaudhuri
In the minimal supersymmetric extension of the Standard Model (MSSM) with -parity conservation the possibility that the sneutrino and the second lightest neutralino decay domina…
Baryogenesis from a Lepton Asymmetric Universe
Marion Flanz, Emmanuel A. Paschos, Utpal Sarkar
We demonstrate that violation in the Majorana mass matrices of the heavy neutrinos can generate a asymmetric universe. The subsequent decay of the Majorana particles gene…
CP violation in the time evolution of the decay K0 -> Pi0 e+ e-
Gerhard O. Koehler, Emmanuel A. Paschos
We examine the possibility of extracting CP-violating terms in the decay K0 -> Pi0 e+ e- by studying the time evolution of a K0 beam. We focus on the interference region and search…
Integrable models of interacting quantum spins with competing interactions
Johannes Richter, Sven E. Krüger, Andreas Voigt +1
We present a class of exactly solvable quantum spin models which consist of two Heisenberg-subsystems coupled via a long-range Lieb-Mattis interaction. The total system is exactly…
What is the lightest excited state of the strongly selfcoupled Higgs field?
V. G. Kiselev, H. So
We argue for the existence of an upper bound on the Higgs mass at which the lowest excited state of the Higgs field ceases to be the conventional plane wave. An explicit cons…
One-loop corrections to the instanton transition in the two-dimensional Abelian Higgs model
J. Baacke, T. Daiber
We present an evaluation of the fluctuation determinant which appears as a prefactor in the instanton transition rate for the two-dimensional Abelian Higgs model. The corrections a…