Coordinatore | EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH
Organization address
address: ROUTE DE MEYRIN CERN contact info |
Nazionalità Coordinatore | Switzerland [CH] |
Totale costo | 0 € |
EC contributo | 137˙449 € |
Programma | FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) |
Code Call | FP7-PEOPLE-IEF-2008 |
Funding Scheme | MC-IEF |
Anno di inizio | 2009 |
Periodo (anno-mese-giorno) | 2009-03-01 - 2010-08-31 |
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1 |
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH
Organization address
address: ROUTE DE MEYRIN CERN contact info |
CH (GENEVA 23) | coordinator | 137˙449.77 |
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'Research objectives and content: we propose to apply recently developed non-perturbative techniques for the simulation of two-flavour QCD with sea quark masses at physical values in order to investigate the convergence properties of Chiral Perturbation Theory (ChiPT) in pi-pi scattering and other light-quark physics quantities. Our approach is based on the Wilson formulation of the fermionic QCD action and an original modification of the Domain Decomposition Hybrid Monte Carlo (DD-HMC) algorithm. Target observables are: pi-pi scattering lenghts, pion mass, pion decay constant, other channels of the light-hadron spectrum. As a result, we expect to find conclusive quantitative information concerning the convergence radius of the chiral expansion and to consequently improve the understanding of the sponaneous breaking of chiral symmetry. Methodology: the main obstacle to simulate light-quarks at physical masses is represented by instability and non-ergodicity phenomena in the HMC, related to the structure of the low-end of the Wilson-Dirac spectrum. We propose to adopt a modification of the algorithm where the low-modes are separated from the bulk of the modes and included in a reweighting factor. Training: the candidate would like to acquire and deepen technical skills and knowledge in the areas of : a) Chiral Perturbation Theory; b) phenomenology of the light hadron interactions; c) Monte Carlo simulations of lattice QCD; d) Parallel computing.'
The management control of innovation: the role of management control technologies in the offshoring of R&D processes
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