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Stability and structure of oligomers of the Alzheimer peptide Abeta16-22: from the dimer to the 32-mer.
Several neurodegenerative diseases such as Alzheimer's, Parkinson's, and Huntington's diseases are associated with amyloid fibrils formed by different polypeptides. We probe the structure andExpand
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Quenched lattice calculation of semileptonic heavy-light meson form factors
We calculate, in the continuum limit of quenched lattice QCD, the matrix elements of the heavy-heavy vector current between heavy-light pseudoscalar meson states. We present the form factors forExpand
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Leading isospin breaking effects on the lattice
We present a method to evaluate on the lattice the leading isospin breaking effects due to both the small mass difference between the up and down quarks and the QED interaction. Our proposal isExpand
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Leading isospin-breaking corrections to pion, kaon and charmed-meson masses with Twisted-Mass fermions
We present a lattice computation of the isospin-breaking corrections to pseudoscalar meson masses using the gauge configurations produced by the European Twisted Mass collaboration with $N_f = 2 + 1Expand
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Stability of lattice QCD simulations and the thermodynamic limit
We study the spectral gap of the Wilson-Dirac operator in two-flavour lattice QCD as a function of the lattice spacing a, the space-time volume V and the current-quark mass m. It turns out that theExpand
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Flavor Physics in the Quark Sector
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor.In this time frame, measurements and the theoreticalExpand
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Isospin breaking effects due to the up-down mass difference in lattice QCD
A bstractWe present a new method to evaluate with high precision leading isospin breaking effects due to the small mass difference between the up and down quarks using lattice QCD. Our proposal isExpand
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QED corrections to hadronic processes in lattice QCD
In this paper, for the first time to our knowledge, a method is proposed to compute electromagnetic effects in hadronic processes, such as decays, using lattice simulations. The method can beExpand
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First Lattice Calculation of the QED Corrections to Leptonic Decay Rates.
The leading-order electromagnetic and strong isospin-breaking corrections to the ratio of K_{μ2} and π_{μ2} decay rates are evaluated for the first time on the lattice, following a method recentlyExpand
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Heavy-light decay constants in the continuum limit of lattice QCD
We compute the decay constants for the heavy–light pseudoscalar mesons in the quenched approximation and continuum limit of lattice QCD. Within the Schrödinger Functional framework, we make use ofExpand
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