Search for Higgs boson decays to beyond-the-Standard-Model light bosons in four-lepton events with the ATLAS detector at √s=13 TeV

The ATLAS collaboration

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

ملخص

A search is conducted for a beyond-the-Standard-Model boson using events where a Higgs boson with mass 125 GeV decays to four leptons (ℓ = e or μ). This decay is presumed to occur via an intermediate state which contains one or two on-shell, promptly decaying bosons: H → ZX/XX → 4ℓ, where X is a new vector boson Zd or pseudoscalar a with mass between 1 and 60 GeV. The search uses pp collision data collected with the ATLAS detector at the LHC with an integrated luminosity of 36.1 fb−1 at a centre-of-mass energy s=13 TeV. No significant excess of events above Standard Model background predictions is observed; therefore, upper limits at 95% confidence level are set on modelindependent fiducial cross-sections, and on the Higgs boson decay branching ratios to vector and pseudoscalar bosons in two benchmark models.[Figure not available: see fulltext.].

اللغة الأصليةالإنجليزيّة
رقم المقال166
دوريةJournal of High Energy Physics
مستوى الصوت2018
رقم الإصدار6
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 1 يونيو 2018

All Science Journal Classification (ASJC) codes

  • !!Nuclear and High Energy Physics

بصمة

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