Study of the Global Temperature Fluctuations in pp collisions at LHC energies

Under the extreme conditions of ultrarelativistic pp collisions, free gluons and quarks can form a state of matter called the Quark-Gluon-Plasma. String Percolation Theory can describe quantitatively the phase transition that forms the collectivity. Within the model strings are representations of the interactions between quarks and they form clusters that reach a critical density that suggests the formation of QGP. In this work we study the Global Temperatures assigned to pp collisions at center-of-mass energies $\sqrt{s}$ = 0.9, 2.76, 7 and 13 TeV for several multiplicity classes. We found the universal behavior of Global Temperatures as the multiplicity increases, regardless of the center-of-mass energy of the collision.