Just after the big bang, the universe was filled with scorching quark-glucon plasma there existed elementary particles which cooled down to form stable configurations of neutrons and protons of matter.
Before cooling down these quarks and glucons collide to form 'X' particles randomly which was known for their mysterious structure and is short-lived. Understanding these particles could help in understanding the universe.
Physicists at MIT's Laboratory for Nuclear Science have found evidence of X particles in the quark-glucon plasma produced in the Large Hadron Collider(LHC) at CERN, the European Organization for Nuclear Research, based near Geneva, Switzerland.
This team used machine learning techniques to examine through more than 13 billion heavy-ion collisions which produced tens of thousands of charged particles. In this ultradense, high-energy particle soup known, the team founded 100X particles of a type known as 'X'(3872) named for the particle's estimated mass.
WHAT IS AN 'X' PARTICLE?
This mysterious particle was first discovered in 2003 by an experiment known as the Belle experiment which is a particle collider in Japan that smashes together high-energy electrons and positrons. According to Yen-Jie Lee "Theoretically speaking, there are so many quarks and glucons in the plasma that the production of X particles should be too difficult to search for them because there are so many particles produced in the quark soup".
According to the theory given by MIT neutrons and protons made from three tightly bound quarks are the basic building blocks of matter. Physicists recently saw signs of exotic "tetraquarks".
Tetraquarks are particles that are a rare combination of four quarks. Scientists suspected that X could either be a compact tetraquark or it can be an entirely new kind of molecule made from two loosely bound mesons- subatomic particles that are made from two quarks.
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