Mr
CHANDAN MONDAL
(INDIAN INSTITUTE OF TECHNOLOGY KANPUR)
21/09/2015, 18:10
Poster Session
We present the nucleon electromagnetic form factors, using the light-front wave functions of a quark-diquark model for the nucleon predicted by the soft-wall model of AdS/QCD. The results are compared with the soft-wall AdS/QCD model. Then we show a comparitive study of the nucleon charge and anomalous magnetization densities in the transverse plane. Flavor decompositions of the form factors...
Dr
Elżbieta Dzimida-Chmielewska
(University of Bialystok)
21/09/2015, 18:10
Poster Session
The LC gauge condition A_0-A_3=0 is considered within the canonical quantization procedure with different temporal parameters: x^0, x^+ and x^-, respectively. Though this gauge condition is Lorentz noncovariant, the symmetry for the Lorentz boost along the x^3 axis remains unbroken. This longitudinal boost plays a crucial role for the modified quantization procedure at the hypersurface...
Jorge Sales
(Universidade Estadual de Santa Cruz, DCET-PPGMC)
21/09/2015, 18:10
Poster Session
The generalized elecrodynamics proposed by Podolsky is based on the Lagrangian density
\begin{equation*}
{\cal L}_{\text{o}}=-\frac{1}{4}F^{\mu \nu }F_{\mu \nu }+\frac{a^{2}}{2}\partial
_{\nu }F^{\mu \nu }\partial ^{\lambda }F_{\mu \lambda },
\end{equation*}%
in which $a$ is a constant with dimension of length. This Lagrangian density generates a linear field theory, with gauge symmetry...
Dr
Jan Żochowski
(University of Białystok)
21/09/2015, 18:10
Poster Session
A novel quantization procedure with the explicit Lorentz symmetry is applied for a fermion field in $D=3+1$ dimensions. The Wightman function for a free fermion field is evaluated in terms of the covariant singular function $\Delta_{+}(x)$. The singularities at the LF hypersurface $x^{+}=0$ appear whenever the "bad" component $\psi_{-}$ is considered. Accordingly the anti-commutator function...
Loredana Bellantuono
(BA)
21/09/2015, 18:10
The spectrum of the glueball with $J^{PC}=0^{--}$ is computed using different bottom-up holographic models of QCD. The results indicate a lowest-lying state lighter than in the determination by other methods, with mass $m \simeq 2.8$ GeV. The in-medium properties of this gluonium are investigated, and stability against thermal and density effects is compared to other hadronic systems....
Mrs
Clayton Santos Mello
(Instituto Tecnológico de Aeronáutica)
21/09/2015, 18:10
Poster Session
In this work, we study the pion valence wave function by starting with an analytic parametrisations of the vertex function and
running quark mass fitted to lattice-QCD results. We also investigate the pion electromagnetic structure of the pion, which is a
pseudoscalar meson composed of a quark-antiquark bound state, i.e., $|u \ \bar{d}>$ with total spin zero and negative parity.
Our...
Loredana Bellantuono
(BA)
21/09/2015, 18:10
Poster Session
Methods based on the gauge/gravity duality are useful tools for the study of strong interactions phenomenology. In particular, the holographic approach seems effective in describing relaxation processes of strongly coupled systems, taken initially out of equilibrium. I examine the case of a boost-invariant fluid, focusing on the production of a far-from-equilibrium configuration and on the...