1 This means that gluons for some reason produce jets that are more spread out than the ones that originate from quarks.

2 Instead, one has to have a collection of gluons whose colors add up to white.

3 A quark - gluon plasma ( QGP ) is expected to appear in laboratories only through high energy heavy - ion collisions.

4 This liquid behavior of the quark- gluon medium must mean that these particles interact with one another rather strongly during their heady moments of liberation right after formation.

5 In the thermal medium, the stimulated thermal gluon emission reduces while absorption increases the parton's energy. The net contribution result in a reduction of the parton energy loss.

6 The kinetic equations of quark gluon plasma ( QGP ) are non Abelian and non linear.

7 The new results confirm that quark gluon plasma acts almost like a fluid, with minimal viscosity.

8 It turns out that one type of gluon chain behaves in the four-dimensional spacetime as the graviton, the fundamental quantum particle of gravity.

9 Theorists carried out the calculations for the routes which involve emitting one or two gluons in the early 1980s.

10 In the thesis, I introduce a new method to calculate the amplitude for gluon radiation on the base of helicity amplitude approximation (HAA).

11 Using this new method, one can easily calculate the amplitude for gluon radiation of multiple scattering, which gives a road to resum all higher twist contributions.

12 Charm quarks have another characteristic useful for probing the quark- gluon medium.

13 It predicted the existence of the W and Z bosons, the gluon and two of the heavier quarks (the charm and the top quark).

14 Nonperturbative vacuum average value of two point function of two gluon with translational invariance is evaluated.

15 Then, in 1999, the US Brookhaven National Laboratory's Relativistic Heavy-Ion Collider established that a quark gluon plasma could be created on a miniscule scale.

16 Using the heavy quark antiquark potential which emerges from an effective dilaton gluon coupling inspired by the superstring theory, we study the energy levels of heavy quark antiquark systems.