Mediterranean cuisine to Catalonia and Murcia along Spain's Mediterranean coast. It comes in many versions, and may contain a mixture of chicken, pork, rabbit, or shellfish, sautéed in olive oil in a large shallow pan, with vegetables, and typically round-grain rice (often of the local "albufera", "arròs bomba", "sénia" varieties or similar) cooked to absorb the water and coloured with saffron. The dish may be varied with artichoke hearts, peas, sweet peppers, lima beans, string beans, or sausages. Anise is used around the Mediterranean to flavour spirits including French "pastis" and "absinthe"; Greek "ouzo"; Bulgarian "mastika"; Italian "sambuca"; Spanish "anísado"; Turkish "rakı";
Flavour (particle physics) QCD). This gives rise to an effective mass for the quarks, often identified with the valence quark mass in QCD. Analysis of experiments indicate that the current quark masses of the lighter flavours of quarks are much smaller than the QCD scale, Λ, hence chiral flavour symmetry is a good approximation to QCD for the up, down and strange quarks. The success of chiral perturbation theory and the even more naive chiral models spring from this fact. The valence quark masses extracted from the quark model are much larger than the current quark mass. This indicates that QCD has spontaneous