We study the polarization of particles in relativistic heavy-ion collisions at very high energy along the beam direction within a relativistic hydrodynamic framework. We show that this component of the polarization decreases much slower with center-of-mass energy compared to the transverse component, even in the ideal longitudinal boost-invariant scenario with nonfluctuating initial state, and that it can be measured by taking advantage of its quadrupole structure in the transverse momentum plane. In the ideal longitudinal boost-invariant scenario, the polarization is proportional to the gradient of temperature at the hadronization and its measurement can provide important information about the cooling rate of the quark-gluon plasma around the critical temperature.

Collective Longitudinal Polarization in Relativistic Heavy-Ion Collisions at Very High Energy / Becattini, F.; Karpenko, I. u.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 120:(2018), pp. 0-0. [10.1103/PhysRevLett.120.012302]

Collective Longitudinal Polarization in Relativistic Heavy-Ion Collisions at Very High Energy

Becattini, F.
;
2018

Abstract

We study the polarization of particles in relativistic heavy-ion collisions at very high energy along the beam direction within a relativistic hydrodynamic framework. We show that this component of the polarization decreases much slower with center-of-mass energy compared to the transverse component, even in the ideal longitudinal boost-invariant scenario with nonfluctuating initial state, and that it can be measured by taking advantage of its quadrupole structure in the transverse momentum plane. In the ideal longitudinal boost-invariant scenario, the polarization is proportional to the gradient of temperature at the hadronization and its measurement can provide important information about the cooling rate of the quark-gluon plasma around the critical temperature.
120
0
0
Becattini, F.; Karpenko, I. u.
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.120.012302.pdf

Accesso chiuso

Tipologia: Pdf editoriale (Version of record)
Licenza: DRM non definito
Dimensione 325.57 kB
Formato Adobe PDF
325.57 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/1107795
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 104
  • ???jsp.display-item.citation.isi??? 100
social impact