Zobrazeno 1 - 10
of 2 184
pro vyhledávání: '"TORRIERI, A."'
We estimate both the polarization of spin $1/2$ baryons and the spin density matrix coefficients of spin $1$ mesons using a thermal model that incorporates vorticity and polarization to describe quarks, along with a coalescence formalism where spin a
Externí odkaz:
http://arxiv.org/abs/2410.16448
Autor:
Taghinavaz, Farid, Torrieri, Giorgio
We argue that an ensemble of backgrounds best understands hydrodynamic dispersion relations in a medium with few degrees of freedom and is therefore subject to strong thermal fluctuations. In the linearized regime, dispersion relations become describ
Externí odkaz:
http://arxiv.org/abs/2408.01742
Autor:
Chinellato, David Dobrigkeit, Lisa, Michael Annan, Serenone, Willian Matioli, Shen, Chun, Takahashi, Jun, Torrieri, Giorgio
We present event-by-event simulations for central asymmetric light+heavy and Au+Au collisions to investigate the formation and evolution of vortex-ring structures in the longitudinal flow velocity profile. The production-plane polarization of $\Lambd
Externí odkaz:
http://arxiv.org/abs/2407.02212
Autor:
Muncinelli, Cicero D., Gardim, Fernando G., Chinellato, David D., Denicol, Gabriel S., Giannini, Andre V., Luzum, Matthew, Noronha, Jorge, da Silva, Tiago Nunes, Takahashi, Jun, Torrieri, Giorgio
We propose a new observable derived from a centrality-dependent scaling of transverse particle spectra. By removing the global scales of total particle number and mean transverse momentum, we isolate the shape of the spectrum. In hydrodynamic simulat
Externí odkaz:
http://arxiv.org/abs/2406.15208
The simplest model of inflation is based around an inflaton field that starts in a coherent false vacuum state with a positive cosmological constant, rolls slowly to the true vacuum and relaxes to it via reheating. We examine whether the scale of the
Externí odkaz:
http://arxiv.org/abs/2406.13082
This paper reviews the similarities in the behavior of unstable particles and oscillating neutrinos using perturbation theory within the interaction picture of quantum field theory. We begin by examining how decaying systems are studied in the intera
Externí odkaz:
http://arxiv.org/abs/2406.05158
Autor:
Torrieri, Giorgio
Assuming the validity of the equivalence principle in the quantum regime, we argue that one of the assumptions of the usual definition of quantum mechanics, namely separation between the ``classical'' detector and the ``quantum'' system, must be rela
Externí odkaz:
http://arxiv.org/abs/2405.08192
Autor:
Torrieri, Giorgio
Publikováno v:
SciPost Phys. 16, 070 (2024)
We argue that one can model deviations from the ensemble average in non-equilibrium statistical mechanics by promoting the Boltzmann equation to an equation in terms of {\em functionals} , representing possible candidates for phase space distribution
Externí odkaz:
http://arxiv.org/abs/2309.05154
Autor:
Torrieri, Giorgio
We show that volume-preserving diffomorphisms and the chemical shift symmetry defining relativistic lagrangian ideal fluid dynamics can be derived as an emerging symmetry when ergodicity is assumed to apply locally in a way that is invariant under sm
Externí odkaz:
http://arxiv.org/abs/2307.07021
We study the mixing of different kind of fields (scalar in 0+1D, scalar in 3+1D, fermion in 3+1D) treating the mixing term as an interaction. To this aim, we employ the usual perturbative series in the interaction picture. We find that expression for
Externí odkaz:
http://arxiv.org/abs/2305.07107