ELFT HÍRADÓ

[Somogyi Gábor <somogyi.gabor AT wigner.hu>]

Wigner FK RMI Elméleti Osztály Szemináriuma
Tisztelettel meghívjuk


          Vahtang Gogohia
          (HUN-REN Wigner RCP)


"The gauge symmetry - unbroken and broken! - in the QCD ground state”


címmel tartandó szemináriumára.


Kivonat:



The main purpose of our talk to report on convincing progress in the 
investigation of the true dynamical and gauge structures of the QCD ground 
state (vacuum). For this, we use only the tensor algebra derivation rigorous 
rules in dealing with the corresponding skeleton loop Feynman integrals, 
contributing to the full gluon self-energy. Along with the gluon field 
configurations preserving the gauge symmetry of the QCD Lagrangian 
(conventional QCD), we have discovered such a gluon field configurations 
which breaks this symmetry. However, the PT renormalizability of the theory 
will not be affected. The solution with broken gauge symmetry dominates over 
the solution with unbroken one at large distances, while they coincide at 
short distances. Our findings also shed light on a mass squared dynamical 
generation in the true QCD vacuum as well as make it possible to exactly and 
uniquely determine the gauge-fixing function for the full gluon propagator 
with the correct PT limit.



Helye: Wigner FK RMI III. ép. Tanácsterem
Ideje: 2024 május 10. péntek d.u. 14 óra

Szívesen látunk minden érdeklődőt.


                     Somogyi Gábor