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47 papers · 2 filters
New Aspects of B -> pi pi, pi K and their Implications for Rare Decays
Andrzej J. Buras, Robert Fleischer, Stefan Recksiegel +1
We analyse the B -> pi pi, pi K modes in the light of the most recent B-factory data, and obtain the following new results: (i) the B0 -> pi+ pi-, pi- K+ modes prefer gamma=(74+-6)…
Supersymmetry Parameter Analysis: SPA Convention and Project
J. A. Aguilar-Saavedra, A. Ali, B. C. Allanach +122
High-precision analyses of supersymmetry parameters aim at reconstructing the fundamental supersymmetric theory and its breaking mechanism. A well defined theoretical framework is…
Status of the Cabibbo Angle
E. Blucher, E. De Lucia, G. Isidori +14
We review the recent experimental and theoretical progress in the determination of |V_{ud}| and |V_{us}|, and the status of the most stringent test of CKM unitarity. Future prospec…
Supersymmetry Simulations with Off-Shell Effects for LHC and ILC
K. Hagiwara, W. Kilian, F. Krauss +5
At the LHC and at an ILC, serious studies of new physics benefit from a proper simulation of signals and backgrounds. Using supersymmetric sbottom pair production as an example, we…
Comparison of Boltzmann Equations with Quantum Dynamics for Scalar Fields
Manfred Lindner, Markus Michael Muller
Boltzmann equations are often used to study the thermal evolution of particle reaction networks. Prominent examples are the computation of the baryon asymmetry of the universe and…
The CP-asymmetry in resonant leptogenesis
A. Anisimov, A. Broncano, M. Plumacher
We study the resonantly enhanced CP-asymmetry in the decays of nearly mass-degenerate heavy right-handed Majorana neutrinos for which different formulae have been presented in the…