Makale detayı · 2017
Measurement of the mass difference between top quark and antiquark in pp collisions at \sqrt{s} = 8 TeV
- Yıl
- 2017
- ISSN
0370-2693- Tür
- article
Veri kaynağı ayrımı
- YÖKSİS YÖKSİS makale kaydı
- OpenAlex OpenAlex zenginleştirmesi (özet, atıf, konular)
Özet
İngilizce (OpenAlex)
The invariance of the standard model (SM) under the CPT transformation predicts equality of particle and antiparticle masses. This prediction is tested by measuring the mass difference between the top quark and antiquark ( Δ m t = m t − m t ‾ ) that are produced in pp collisions at a center-of-mass energy of 8 TeV, using events with a muon or an electron and at least four jets in the final state. The analysis is based on data corresponding to an integrated luminosity of 19.6 fb − 1 collected by the CMS experiment at the LHC, and yields a value of Δ m t = − 0.15 ± 0.19 (stat) ± 0.09 (syst) GeV , which is consistent with the SM expectation. This result is significantly more precise than previously reported measurements.
Konular
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
Birincil konu Particle physics theoretical and experimental studies