Observation of τ Lepton Pair Production in Ultraperipheral Pb-Pb 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 | Physical Review Letters (Q1) | ||
| Dergi ISSN | 0031-9007 Dergi Bilgileri (2023) | ||
| Makale Dili | İngilizce | Basım Tarihi | 10-2023 |
| Cilt / Sayı / Sayfa | 131 / 15 / 1–18 | DOI | 10.1103/PhysRevLett.131.151803 |
| Makale Linki | http://www.scopus.com/inward/record.url?eid=2-s2.0-85175275979&partnerID=MN8TOARS | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| We present an observation of photon-photon production of τ lepton pairs in ultraperipheral lead-lead collisions. The measurement is based on a data sample with an integrated luminosity of 404 μb− 1 collected by the CMS experiment at a center-of-mass energy per nucleon pair of√ sNN= 5.02 TeV. The γγ→ τ+ τ− process is observed for τ+ τ− events with a muon and three charged hadrons in the final state. The measured fiducial cross section is σ (γγ→ τ+ τ−)= 4.8±0.6 (stat)±0.5 (syst) μb, where the second (third) term corresponds to the statistical (systematic) uncertainty in σ (γγ→ τ+ τ−) in agreement with leading-order QED predictions. Using σ (γγ→ τ+ τ−), we estimate a model-dependent value of the anomalous magnetic moment of the τ lepton of aτ= 0.001+ 0.055− 0.089. |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 39 |
| Scopus | 45 |
| Google Scholar | 102 |