13,468 research outputs found
Analysis for time discrete approximations of blow-up solutions of semilinear parabolic equations
We prove a posteriori error estimates for time discrete approximations, for semilinear parabolic equations with solutions that might blow up in finite time. In particular we consider the backward Euler and the Crank–Nicolson methods. The main tools that are used in the analysis are the reconstruction technique and energy methods combined with appropriate fixed point arguments. The final estimates we derive are conditional and lead to error control near the blow up time
New Constraints on General Slepton Flavor Mixing
We explore the phenomenological implications on charged lepton flavor
violating (LFV) processes from slepton flavor mixing within the Minimal
Supersymmetric Standard Model. We work under the model-independent hypothesis
of general flavor mixing in the slepton sector, being parametrized by a
complete set of dimensionless delta^AB_ij (A,B = L,R; i,j = 1, 2, 3)
parameters. The present upper bounds on the most relevant LFV processes,
together with the requirement of compatibility in the choice of the MSSM
parameters with the recent LHC and (g-2) data, lead to updated constraints on
all slepton flavor mixing parameters. A comparative discussion of the most
effective LFV processes to constrain the various generation mixings is
included.Comment: 42 pages, 19 figures. Minor changes, version to appear in PR
Updated Constraints on General Squark Flavor Mixing
We explore the phenomenological implications on non-minimal flavor violating
(NMFV) processes from squark flavor mixing within the Minimal Supersymmetric
Standard Model. We work under the model-independent hypothesis of general
flavor mixing in the squark sector, being parametrized by a complete set of
dimensionless delta^AB_ij (A,B = L, R; i,j = u, c, t or d, s, b) parameters.
The present upper bounds on the most relevant NMFV processes, together with the
requirement of compatibility in the choice of the MSSM parameters with the
recent LHC and g-2 data, lead to updated constraints on all squark flavor
mixing parameters.Comment: 30 pages, 7 figures. arXiv admin note: text overlap with
arXiv:1304.2783, arXiv:1109.623
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