Constraints on the Initial State of Pb-Pb Collisions via Measurements of Z -Boson Yields and Azimuthal Anisotropy at sNN =5.02 TeV
Yazarlar (1)
Doç. Dr. Mustafa Numan BAKIRCI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SCOPUS dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physical Review Letters | ||
| Dergi ISSN | 0031-9007 Wos Dergi Scopus Dergi | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2021 |
| Cilt / Sayı / Sayfa | 127 / 10 / – | DOI | 10.1103/PhysRevLett.127.102002 |
| Makale Linki | http://link.aps.org/pdf/10.1103/PhysRevLett.127.102002 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| The CMS experiment at the LHC has measured the differential cross sections of bosons decaying to pairs of leptons, as functions of transverse momentum and rapidity, in lead-lead collisions at a nucleon-nucleon center-of-mass energy of . The measured boson elliptic azimuthal anisotropy coefficient is compatible with zero, showing that bosons do not experience significant final-state interactions in the medium produced in the collision. Yields of bosons are compared to Glauber model predictions and are found to deviate from these expectations in peripheral collisions, indicating the presence of initial collision geometry and centrality selection effects. The precision of the measurement allows, for the first time, for a data-driven determination of the nucleon-nucleon integrated luminosity as a function of lead-lead centrality, thereby eliminating the need for its estimation based on a Glauber model. |
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| Atıf Sayıları | |
| Scopus | 16 |
| Google Scholar | 62 |