System-size dependence of charged-particle suppression in ultrarelativistic nucleus-nucleus collisions
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physics Letters Section B Nuclear Elementary Particle and High Energy Physics (Q1)
Dergi ISSN 0370-2693 Dergi Bilgileri (2026)
Makale Dili Basım Tarihi 03-2026
Kabul Tarihi Yayınlanma Tarihi 01-09-2026
Cilt / Sayı / Sayfa 880 / 1 / 140679–0 DOI 10.1016/j.physletb.2026.140679
Makale Linki https://hal.science/hal-05534092/
UAK Araştırma Alanları
Nükleer Fizik
Özet
High-energy partons lose energy while propagating through the hot, strongly interacting medium produced in ultrarelativistic nucleus-nucleus collisions, leading to a suppression of particle production at high transverse momentum (). The dependence of this energy loss on the size of the colliding nuclear system has yet to be firmly established experimentally. This Letter presents a systematic study of charged-particle suppression across four different nucleus-nucleus collision systems using nuclear modification factors () measured by the CMS Collaboration at the CERN LHC. Previous CMS measurements of in oxygen-oxygen, xenon-xenon, and lead-lead collisions are recast with identical intervals and are complemented by the first measurement of the charged-particle in neon-neon collisions at = 5.36 TeV. The neon-neon data correspond to an integrated luminosity of 0.76 nb. The in all collision systems examined show similar qualitative trends, but have a magnitude which is ordered with the nucleon number A. The feature a downward slope at low , a local minimum at around 57 GeV, and an upward slope with increasing . The are also compared in terms of A, which is proportional to the nuclear radius. Models including only initial-state nuclear effects fail to reproduce the observed trends, whereas energy loss models reproduce the trends in the region 9.6 GeV.
Anahtar Kelimeler
CMS | Heavy ions | Jet quenching | Light ions | Quark-gluon plasma