Speaker
Prof.
Andrew Koshelkin
(Moscow Institute for Physics and Engineering)
Description
In order to describe the dynamics of particle production and hadron spectrum in a flux tube, we start with an action integral in QCD4 in (3+1)dimensional space-time with a confining scalar transverse
interaction. Under the dominance of longitudinal motion of the
valence quark-antiquark pair, the four dimensional space-time
QCD4 can be compactified into QCD2 in (1+1) dimensional
space-time [1]. The obtained action integral is found to govern
massive fermion and gluon fields, with a relation between the
coupling constant g(2D) in QCD2 and g(4D) in QCD4. The contribution to the quark and gluon masses due to the flux tube are derived. The
coupling constants and the masses depend crucially on the
excitation of the partons in the transverse degrees of freedom.
The spectrum of transverse degrees of freedom in the flux tube are
studied in detail. On basis of the obtained quark eigenstates of a
tube, the gluon and fermion masses as well as 2D coupling
constants, g(2D), are calculated. The relation of the obtained
gluon mass to the spectrum of observable hadrons will be
considered.
References
[1] A. V. Koshelkin and C. Y. Wong, Phys. Rev.
v.D86, 125026 (2012).
Primary author
Prof.
Andrew Koshelkin
(Moscow Institute for Physics and Engineering)
Co-author
Prof.
Cheuk-Yin Wong
(Physics Division, Oak Ridge National Laboratory)
