No. The "nuclear field" is just a term for the composite field resulting from the constituent particles of the nucleus (the quarks and gluons) and their interac

No. The "nuclear field" is just a term for the composite field resulting from the constituent particles of the nucleus (the quarks and gluons) and their interaction. For there to be no "nuclear field" there would have to be no nucleus. Well, that's not entirely correct, because particle fields permeate all of space. To grossly simplify, there's something happening in those fields in a nucleus. The various particle fields are vibrating and interacting. "Nuclear field" is just shorthand for this interaction that is the result of the presence of the particles of the nucleus. The result described in this article just rules out the nuclear field as being responsible for the EMC effect.