Quark (dairy product) a somewhat crumbly texture (like ricotta). The basic quark this basic quark or skimmed quark ("Magerquark") must under German Law have less than 10% fat by dry mass. Quark with higher fat content is made by adding cream after cooling. It has a very smooth and creamy texture and is slightly sweet (unlike sour cream). A firmer version called "Schichtkäse" (layer cheese) is often used for baking. Schichtkäse is distinguished from quark by having an added layer of cream sandwiched between two layers of quark. Quark is also often sold flavored with herbs, spices, or fruit. In general, dry mass
Current quark the mass of the constituent quark covering. The current quark mass is a parameter to compute sufficiently small color charges. "Definition": The current quark mass means the mass of the constituent quark mass reduced by the mass of the respective constituent quark covering. There is almost no difference between current quark mass and constituent quark mass for the heavy quarks (c,b,t).This is not so for the light quarks (u, d, s). The comparison of the results of the computations with the experimental data supplies the values for the current quark masses. Current quark Current quarks (also called naked quarks or