Quark (dairy product) Quark (dairy product) Quark or quarg is a type of fresh dairy product made by warming soured milk until the desired amount of curdling is met, and then straining it. It can be classified as fresh acid-set cheese. Traditional quark can be made without rennet, but in modern dairies small quantities of rennet are typically added. It is soft, white and unaged, and usually has no salt added. It is traditional in the cuisines of German-speaking, Slavic and Scandinavian countries. Dictionaries sometimes translate it as curd cheese, cottage cheese, farmer cheese or junket. In Germany, quark and cottage cheese are
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