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## IV. GLASMA FLUX TUBE MODEL 

A glasma flux tube model (GFTM)[17] that had been developed considers that the wavefunctions of the incoming projectiles, form sheets of color glass condensates (CGC)[18] that at high energies collide, interact, and evolve into high intensity color elec- tric and magnetic fields. This collection of primor- dial fields is the Glasma[19, 20], and initially it is composed of only rapidity independent longitudinal color electric and magnetic fields. An essential fea- ture of the Glasma is that the fields are localized in the transverse space of the collision zone with a 

size of 1/ Q s . Q s is the saturation momentum of par- tons in the nuclear wavefunction. These longitudinal color electric and magnetic fields generate topologi- cal Chern-Simons charge[21] which becomes a source for particle production. 

The transverse space is filled with flux tubes of large longitudinal extent but small transverse size ∼ Q $_{−}$1 s . Particle production from a flux tube is a Poisson process, since the flux tube is a coherent state. As the partons emitted from these flux tubes locally equilibrate, transverse flow builds due to the radial flow of the blast wave[22]. The flux tubes that are near the surface of the fireball get the largest 

