Interactions.org Newsdigest 19 June 2013

-- First Known Four-Quark Particle Pops Up In Japanese Collider -- The International Linear Collider will be a Higgs factory -- 'Charged charmonium' confounds particle physicists -- The Large Hadron Collider shows its insides as upgrade work commences -- The Crazy New Subatomic Particle That May Rewrite the Rules of Matter -- Viewpoint: New Particle Hints at Four-Quark Matter -- Mysterious Subatomic Particle May Represent Exotic New Form of Matter -- Rethinking the universe: Groundbreaking theor...