Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at √sNN=5.02 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 | Journal of High Energy Physics (Q1) | ||
| Dergi ISSN | 1029-8479 Dergi Bilgileri (2025) | ||
| Makale Dili | İngilizce | Basım Tarihi | 08-2025 |
| Cilt / Sayı / Sayfa | 2025 / 8 / 1–56 | DOI | 10.1007/JHEP08(2025)006 |
| Makale Linki | https://doi.org/10.1007/jhep08(2025)006 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| Measurements of light-by-light scattering (LbL, γγ→ γγ) and the Breit-Wheeler process (BW, γγ→ e+ e−) are reported in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV. The data sample, corresponding to an integrated luminosity of 1.7 nb− 1, was collected by the CMS experiment at the CERN LHC in 2018. Events with an exclusively produced γγ or e+ e− pair with invariant masses m γγ, ee> 5 GeV, along with other fiducial criteria, are selected. The measured BW fiducial production cross section, σ fid (γγ→ e+ e−)= 263. 5±1. 8 (stat)±17. 8 (syst) μb, as well as the differential distributions for various kinematic observables, are in agreement with leading-order quantum electrodynamics predictions complemented with final-state photon radiation. The measured differential BW cross sections allow discrimination between different theoretical descriptions of the photon flux of the lead … |
| Anahtar Kelimeler |
| Hadron-Hadron Scattering | Photon Production | Relativistic Heavy Ion Physics |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 1 |
| Scopus | 8 |
| Google Scholar | 38 |