204 citations · 942 across the 17 of their papers we have counts for
19 papers
Spin polarization of an expanding and rotating system
Nora Weickgenannt, Jean-Paul Blaizot
We study the longitudinal spin polarization of a relativistic fluid of massive spin-1/2 particles undergoing a boost-invariant expansion in the longitudinal direction and rotating…
Spin kinetic theory with a nonlocal relaxation time approximation
Nora Weickgenannt, Jean-Paul Blaizot
We present a novel relaxation time approximation for kinetic theory with spin which takes into account the nonlocality of particle collisions. In particular, it models the property…
Phenomenology of isospin-symmetry breaking with vector mesons
Péter Kovács, György Wolf, Nora Weickgenannt +1
We study the effect of isospin-symmetry breaking in the framework of the extended Linear Sigma Model (eLSM) in vacuum. In this model, several particles mix with each other at tree…
Polarization dynamics from moment equations
Nora Weickgenannt, Jean-Paul Blaizot
We derive an expression for the local transverse polarization of a boost-invariant expanding system of massive particles, which involves a set of dynamical spin moments. Starting f…
Chiral hydrodynamics of expanding systems
Nora Weickgenannt, Jean-Paul Blaizot
We obtain equations of motion for the boost-invariant expansion of a system of chiral particles. Our analysis is based on the Boltzmann equation for left- and right-handed massless…
Linearly stable and causal relativistic first-order spin hydrodynamics
Nora Weickgenannt
We derive equations of motion for dissipative spin hydrodynamics from kinetic theory up to first order in a gradient expansion. Choosing a specific form of the matching conditions,…
Quantum kinetic theory with interactions for massive vector bosons
David Wagner, Nora Weickgenannt, Enrico Speranza
We present a derivation of quantum kinetic theory for massive spin-1 particles from the Wigner-function formalism up to first order in an -expansion, including a general int…
Lorentz-covariant nonlocal collision term for spin-1/2 particles
David Wagner, Nora Weickgenannt, Dirk H. Rischke
We revisit the derivation of the nonlocal collision term in the Boltzmann equation for spin-1/2 particles, using both the Wigner-function approach by de Groot, van Leeuwen, and van…
Relativistic dissipative spin hydrodynamics from kinetic theory with a nonlocal collision term
Nora Weickgenannt, David Wagner, Enrico Speranza +1
We derive relativistic dissipative spin hydrodynamics from kinetic theory featuring a nonlocal collision term using the method of moments. In this framework, the components of the…
Kinetic theory for massive spin-1 particles
David Wagner, Nora Weickgenannt, Enrico Speranza
We calculate the Wigner function for charged spin-1 particles in inhomogeneous classical electromagnetic fields, going to first order in a power series in . The Boltzmann eq…
Generating Tensor Polarization from Shear Stress
David Wagner, Nora Weickgenannt, Enrico Speranza
We derive an expression for the tensor polarization of a system of massive spin-1 particles in a hydrodynamic framework. Starting from quantum kinetic theory based on the Wigner-fu…
Pseudo-gauges and relativistic spin hydrodynamics for interacting Dirac and Proca fields
Nora Weickgenannt, David Wagner, Enrico Speranza
We present the explicit expressions of different pseudo-gauge transformations for Dirac and Proca fields considering a general interaction term. The particular case of the interact…
Relativistic second-order dissipative spin hydrodynamics from the method of moments
Nora Weickgenannt, David Wagner, Enrico Speranza +1
We derive relativistic second-order dissipative fluid-dynamical equations of motion for massive spin-1/2 particles from kinetic theory using the method of moments. Besides the usua…
From Kadanoff--Baym to Boltzmann equations for massive spin-1/2 fermions
Xin-Li Sheng, Nora Weickgenannt, Enrico Speranza +2
We derive Boltzmann equations for massive spin-1/2 fermions with local and nonlocal collision terms from the Kadanoff--Baym equation in the Schwinger--Keldysh formalism, properly a…
Derivation of the nonlocal collision term in the relativistic Boltzmann equation for massive spin-1/2 particles from quantum field theory
Nora Weickgenannt, Enrico Speranza, Xin-li Sheng +2
We derive the Boltzmann equation and the collision kernel for massive spin-1/2 particles, using the Wigner-function formalism and employing an expansion in powers of . The p…
Spin tensor and pseudo-gauges: from nuclear collisions to gravitational physics
Enrico Speranza, Nora Weickgenannt
The relativistic treatment of spin is a fundamental subject which has an old history. In various physical contexts it is necessary to separate the relativistic total angular moment…
Generating spin polarization from vorticity through nonlocal collisions
Nora Weickgenannt, Enrico Speranza, Xin-li Sheng +2
We derive the collision term in the Boltzmann equation using the equation of motion for the Wigner function of massive spin-1/2 particles. To next-to-lowest order in it con…
Wigner function and kinetic theory for massive spin-1/2 particles
Nora Weickgenannt, Xin-li Sheng, Enrico Speranza +2
We calculate the Wigner function for massive spin-1/2 particles in an inhomogeneous electromagnetic field to leading order in the Planck constant . Going beyond leading orde…
Kinetic theory for massive spin-1/2 particles from the Wigner-function formalism
Nora Weickgenannt, Xin-li Sheng, Enrico Speranza +2
We calculate the Wigner function for massive spin-1/2 particles in an inhomogeneous electromagnetic field to leading order in the Planck constant . Going beyond leading orde…