A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Global baryon number conservation encoded in net-proton fluctuations measured in Pb–Pb collisions at √sNN = 2.76 TeV (2020)

ALICE Collaboration. (2020). Global baryon number conservation encoded in net-proton fluctuations measured in Pb–Pb collisions at √sNN = 2.76 TeV. Physics Letters B, 807, Article 135564. https://doi.org/10.1016/j.physletb.2020.135564

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: ALICE Collaboration

Lehti tai sarja: Physics Letters B

ISSN: 0370-2693

eISSN: 1873-2445

Julkaisuvuosi: 2020

Volyymi: 807

Artikkelinumero: 135564

Kustantaja: Elsevier B.V.

Julkaisumaa: Alankomaat

Julkaisun kieli: englanti

DOI: https://doi.org/10.1016/j.physletb.2020.135564

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/71248

Rinnakkaistallenteen verkko-osoite (pre-print): https://arxiv.org/abs/1910.14396

Tiivistelmä

Experimental results are presented on event-by-event net-proton fluctuation measurements in Pb–Pb collisions at TeV, recorded by the ALICE detector at the CERN LHC. These measurements have as their ultimate goal an experimental test of Lattice QCD (LQCD) predictions on second and higher order cumulants of net-baryon distributions to search for critical behavior near the QCD phase boundary. Before confronting them with LQCD predictions, account has to be taken of correlations stemming from baryon number conservation as well as fluctuations of participating nucleons. Both effects influence the experimental measurements and are usually not considered in theoretical calculations. For the first time, it is shown that event-by-event baryon number conservation leads to subtle long-range correlations arising from very early interactions in the collisions.

Liittyvät organisaatiot

OKM-raportointi: Kyllä

Raportointivuosi: 2020

JUFO-taso: 2