Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Enrico Speranza"'
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-18 (2020)
Abstract Rotating photon gas exhibits a chirality separation along the angular velocity which is manifested through a generation of helicity and zilch currents. In this paper we study this system using the corresponding Wigner function and construct
Externí odkaz:
https://doaj.org/article/13333011739448439a9c7cf215a19c77
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013187 (2023)
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-function formalism, we employ a modified method of moments which also ta
Externí odkaz:
https://doaj.org/article/b993f5dc966547f9b377567e8d63bfa9
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 9, Pp 1-13 (2019)
Abstract We calculate the contribution to the polarization of $$\Lambda $$ Λ hyperons in relativistic nuclear collisions at high energy from the decays of $$\Sigma ^{*}(1385)$$ Σ∗(1385) and $$\Sigma ^0$$ Σ0 , which are the predominant sources of
Externí odkaz:
https://doaj.org/article/4dddc855e9b94501a951bac7ef1bb04e
Publikováno v:
Physics Letters B, Vol 789, Iss , Pp 419-425 (2019)
It is shown that the description of a relativistic fluid at local thermodynamic equilibrium depends on the particular quantum stress-energy tensor operator chosen, e.g., the canonical or symmetrized Belinfante stress-energy tensor. We argue that the
Externí odkaz:
https://doaj.org/article/2d7f5e21d98a4a43ba5b380bc4718fe5
Publikováno v:
Physics Letters B, Vol 782, Iss , Pp 395-400 (2018)
The polarization of virtual photons produced in relativistic nucleus–nucleus collisions provides information on the conditions in the emitting medium. In a hydrodynamic framework, the resulting angular anisotropy of the dilepton final state depends
Externí odkaz:
https://doaj.org/article/d01487d8764c4cb58bd8cce2159b53fc
Publikováno v:
Physics Letters B, Vol 764, Iss C, Pp 282-288 (2017)
Hadronic polarization and the related anisotropy of the dilepton angular distribution are studied for the reaction πN→Ne+e−. We employ consistent effective interactions for baryon resonances up to spin-5/2, where non-physical degrees of freedom
Externí odkaz:
https://doaj.org/article/d11c723f57664d848cff66b91aaf55be
Publikováno v:
Physical Review
We prove that ideal chiral hydrodynamics, as derived from chiral kinetic theory, is acausal and its initial-value problem is ill-posed both in the linearized case around a local equilibrium solution and also in the full nonlinear regime. Therefore, s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7750fa3a56accdbdcde5b00ae415fedb
https://doi.org/10.1103/physrevd.107.054029
https://doi.org/10.1103/physrevd.107.054029
Publikováno v:
Physical Review D. 106
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 spin tensor are dynamical variables which obey relaxation-type equatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::380c18f63132fb957903189fe81fd08d
https://doi.org/10.1103/physrevd.106.l091901
https://doi.org/10.1103/physrevd.106.l091901
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 interaction of Dirac and Proca fields with a background electromagnetic field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edb761b4c6bbe3713adeea6fa3d6cd6c
http://arxiv.org/abs/2204.01797
http://arxiv.org/abs/2204.01797
Publikováno v:
Physical Review D. 104
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 $\ensuremath{\hbar}$. The phase space is enlarged to include a variable related to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f689e180039a3c424808d3923e6783f9
https://doi.org/10.1103/physrevd.104.016022
https://doi.org/10.1103/physrevd.104.016022