Makale detayı · 2015
Search for Higgs Boson Pair Production in the math display=”inline” miγ/mi miγ/mi mib/mi mover accent=”true” mib/mi mo accent=”true” stretchy=”false”¯/mo /mover /math Final State Using math display=”inline” mip/mi mip/mi /math Collision Data at math display=”inline” mrow msqrt mrow mis/mi /mrow /msqrt mo=/mo mn8/mn mtext /mtext mtext /mtext miTeV/mi /mrow /math from the ATLAS Detector
- Yıl
- 2015
- ISSN
0031-9007- Tür
- article
Veri kaynağı ayrımı
- YÖKSİS YÖKSİS makale kaydı
- OpenAlex OpenAlex zenginleştirmesi (özet, atıf, konular)
Özet
İngilizce (OpenAlex)
Searches are performed for resonant and nonresonant Higgs boson pair production in the γγbb[over ¯] final state using 20 fb^{-1} of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the ATLAS detector at the CERN Large Hadron Collider. A 95% confidence level upper limit on the cross section times branching ratio of nonresonant production is set at 2.2 pb, while the expected limit is 1.0 pb. The difference derives from a modest excess of events, corresponding to 2.4 standard deviations from the background-only hypothesis. The limit observed in the search for a narrow X→hh resonance ranges between 0.7 and 3.5 pb as a function of the resonance mass.
Konular
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
Birincil konu Particle physics theoretical and experimental studies