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First Measurement of Antideuteron Number Fluctuations at Energies Available at the Large Hadron Collider
- 1.0577580 - ÚJF 2024 RIV US eng J - Journal Article
Acharya, S. - Adamová, Dagmar - Adler, A. - Aglieri Rinella, G. - Bielčík, J. - Bielčíková, Jana - Broz, M. - Contreras, J. G. - Filová, V. - Grecká, Ekaterina - Grund, D. - Herman, T. - Horák, D. - Isakov, Artem - Kotliarov, Artem - Krupová, D. M. - Křížek, Filip - Křížková Gajdošová, K. - Kushpil, Svetlana - Petráček, V. - Šafařík, K. - Torres, S. R. - Závada, Petr … Total 1032 authors
First Measurement of Antideuteron Number Fluctuations at Energies Available at the Large Hadron Collider.
Physical Review Letters. Roč. 131, č. 4 (2023), č. článku 041901. ISSN 0031-9007. E-ISSN 1079-7114
Research Infrastructure: CERN-CZ III - 90240
Institutional support: RVO:68378271 ; RVO:61389005
Keywords : ALICE collaboration * heavy ion experiments
OECD category: Nuclear physics; Particles and field physics (FZU-D)
Impact factor: 8.1, year: 2023 ; AIS: 3.013, rok: 2023
Method of publishing: Open access
Result website:
https://doi.org/10.1103/PhysRevLett.131.041901DOI: https://doi.org/10.1103/PhysRevLett.131.041901
The first measurement of event-by-event antideuteron number fluctuations in high energy heavy-ion collisions is presented. The measurements are carried out at midrapidity (1?1 < 0.8) as a function of collision centrality in Pb-Pb collisions atv (NN)-N-s= 5.02 TeV using the ALICE detector. A significant negative correlation between the produced antiprotons and antideuterons is observed in all collision centralities. The results are compared with a state-of-the-art coalescence calculation. While it describes the ratio of higher order cumulants of the antideuteron multiplicity distribution, it fails to describe quantitatively the magnitude of the correlation between antiproton and antideuteron production. On the other hand, thermal-statistical model calculations describe all the measured observables within uncertainties only for correlation volumes that are different with respect to those describing proton yields and a similar measurement of net-proton number fluctuations.
Permanent Link: https://hdl.handle.net/11104/0346699File Download Size Commentary Version Access 0577580.pdf 0 16.1 MB CC licence Publisher’s postprint open-access
Počet záznamů: 1