Observation of Λ Hyperon Local Polarization in p-Pb Collisions at sqrt[s_{NN}]=8.16 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physical Review Letters (Q1) | ||
| Dergi ISSN | 0031-9007 Dergi Bilgileri (2025) | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2025 |
| Cilt / Sayı / Sayfa | 135 / 13 / 132301–0 | DOI | 10.1103/6ywq-gm61 |
| Makale Linki | https://link.aps.org/doi/10.1103/6ywq-gm61 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| The polarization of the and hyperons along the beam direction has been measured in proton-lead () collisions at a center-of-mass energy per nucleon pair of 8.16 TeV. The data were obtained with the CMS detector at the LHC and correspond to an integrated luminosity of . A significant azimuthal dependence of the hyperon polarization, characterized by the second-order Fourier sine coefficient , is observed. The values decrease as a function of charged particle multiplicity, but increase with transverse momentum. A hydrodynamic model that describes the observed values in nucleus-nucleus collisions by introducing vorticity effects does not reproduce either the sign or the magnitude of the results. These observations pose a challenge to the current theoretical implementation of spin polarization in heavy ion collisions and offer new insights into the origin of spin polarization … |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 5 |
| Scopus | 1 |
| Google Scholar | 18 |