A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Probing the chiral magnetic wave with charge-dependent flow measurements in Pb-Pb collisions at the LHC (2023)

The ALICE collaboration. (2023). Probing the chiral magnetic wave with charge-dependent flow measurements in Pb-Pb collisions at the LHC. Journal of High Energy Physics, 2023, Article 67. https://doi.org/10.1007/JHEP12(2023)067

JYU-tekijät tai -toimittajat

Hassan, Hadi
Huhta, Laura
Kim, Dong
Molander, Andreas
Mordasini, Cindy
Rytkönen, Heidi
Räsänen, Sami
Saarimäki, Oskari
Trzaska, Wladyslaw
Virta, Maxim
Önnerstad, Anna

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: The ALICE collaboration

Lehti tai sarja: Journal of High Energy Physics

ISSN: 1126-6708

eISSN: 1029-8479

Julkaisuvuosi: 2023

Ilmestymispäivä: 12.12.2023

Volyymi: 2023

Artikkelinumero: 67

Kustantaja: Springer Nature

Julkaisumaa: Saksa

Julkaisun kieli: englanti

DOI: https://doi.org/10.1007/JHEP12(2023)067

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/98382

Rinnakkaistallenteen verkko-osoite (pre-print):  https://doi.org/10.48550/arXiv.2308.16123

Tiivistelmä

The Chiral Magnetic Wave (CMW) phenomenon is essential to provide insights into the strong interaction in QCD, the properties of the quark-gluon plasma, and the topological characteristics of the early universe, offering a deeper understanding of fundamental physics in high-energy collisions. Measurements of the charge-dependent anisotropic flow coefficients are studied in Pb-Pb collisions at center-of-mass energy per nucleon-nucleon collision √sNN= 5.02 TeV to probe the CMW. In particular, the slope of the normalized difference in elliptic (v2) and triangular (v3) flow coefficients of positively and negatively charged particles as a function of their event-wise normalized number difference, is reported for inclusive and identified particles. The slope rNorm3 is found to be larger than zero and to have a magnitude similar to rNorm2, thus pointing to a large background contribution for these measurements. Furthermore, rNorm2 can be described by a blast wave model calculation that incorporates local charge conservation. In addition, using the event shape engineering technique yields a fraction of CMW (fCMW) contribution to this measurement which is compatible with zero. This measurement provides the very first upper limit for fCMW, and in the 10-60% centrality interval it is found to be 26% (38%) at 95% (99.7%) confidence level.

YSO-asiasanat: hiukkasfysiikka; ydinfysiikka

Liittyvät organisaatiot

Hankkeet, joissa julkaisu on tehty

OKM-raportointi: Kyllä

VIRTA-lähetysvuosi: 2024

Alustava JUFO-taso: 3