The “New Worlds in Particle and Astroparticle Physics” workshop will be held in Lisbon (Pavilhão do Conhecimento) on the 20th and 21st December 2012. It inherits the spirit of a long series of “New Worlds in Astroparticle Physics” workshops held, from 1996 to 2009. The idea was “bringing together, in an informal atmosphere, experimentalists and theorists in the joint field of Particle Physics and Astrophysics”. Time has evolved and the Portuguese scientific community in these fields has grown in number and above all in competence and responsibility but, the scientific and political challenges in a time frame of 10 years are enormous.

The future, as always, has to be built! We consider thus that it is the moment to organize a new workshop, now including explicitly in the title “Particle Physics” and taking profit of the framework of the recent IDPASC network. Young senior scientists with a recognized scientific curriculum who want to contribute to the development and consolidation of these fields in Portugal are strongly encouraged to actively participate in the Workshop.