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Influence of globally spin-aligned vector mesons to the measurements of the chiral magnetic effect in heavy-ion collisions.
- Source :
-
EPJ Web of Conferences . 6/26/2024, Vol. 296, p1-4. 4p. - Publication Year :
- 2024
-
Abstract
- The chiral magnetic effect (CME) in high-energy heavy-ion collisions arises from the interplay between the chirality imbalance and the intense magnetic field and will cause a charge separation along the magnetic field direction. While the CME search is still ongoing in experiments, the non-CME contributions need to be excluded from the CME observables. In this work, we examine the influence of globally spin-aligned ρ mesons on the γ112 correlator, the RΨ2(ΔS) correlator, and the signed balance functions, via a toy model and a multiphase transport model (AMPT). We find that the CME observables are sensitive to the 00-component of the spin density matrix, ρ00: they receive positive (negative) contributions when ρ00 is larger (smaller) than 1/3. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HEAVY ion collisions
*CHIRALITY
*MAGNETIC fields
*CORRELATORS
*PARTICLE physics
Subjects
Details
- Language :
- English
- ISSN :
- 21016275
- Volume :
- 296
- Database :
- Academic Search Index
- Journal :
- EPJ Web of Conferences
- Publication Type :
- Conference
- Accession number :
- 178093735
- Full Text :
- https://doi.org/10.1051/epjconf/202429604002