Makale detayı · 2018
title Search for pair production of vector-like quarks in the math altimg=”si1.gif” overflow=”scroll” mi mathvariant=”normal”b/mi mi mathvariant=”normal”W/mi mover accent=”true” mrow mi mathvariant=”normal”b/mi /mrow mo‾/mo /mover mi mathvariant=”normal”W/mi /math channel from proton–proton collisions at math altimg=”si100.gif” overflow=”scroll” msqrt mrow mis/mi /mrow /msqrt mo=/mo mn13/mn mspace width=”0.2em”/ mtextTeV/mtext /math/title
- Yıl
- 2018
- ISSN
0370-2693- Tür
- article
Veri kaynağı ayrımı
- YÖKSİS YÖKSİS makale kaydı
- OpenAlex OpenAlex zenginleştirmesi (özet, atıf, konular)
Özet
İngilizce (OpenAlex)
A search is presented for the production of vector-like quark pairs, T T ‾ or Y Y ‾ , with electric charge of 2/3 (T) or − 4 / 3 (Y), in proton–proton collisions at s = 13 TeV . The data were collected by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.8 fb − 1 . The T and Y quarks are assumed to decay exclusively to a W boson and a b quark. The search is based on events with a single isolated electron or muon, large missing transverse momentum, and at least four jets with large transverse momenta. In the search, a kinematic reconstruction of the final state observables is performed, which would permit a signal to be detected as a narrow mass peak (≈7% resolution). The observed number of events is consistent with the standard model prediction. Assuming strong pair production of the vector-like quarks and a 100% branching fraction to b W , a lower limit of 1295 GeV at 95% confidence level is set on the T and Y quark masses.
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