Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter

The ATLAS collaboration, Виктор Сергеевич Бобровников, Георгий Александрович Богданчиков, Алексей Рафаилович Бузыкаев, Алексей Георгиевич Харламов, Сергей Владимирович Пелеганчук

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

19 Цитирования (Scopus)

Аннотация

This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8fb-1 or 33.0fb-1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles.

Язык оригиналаанглийский
Номер статьи481
Число страниц31
ЖурналEuropean Physical Journal C
Том79
Номер выпуска6
DOI
СостояниеОпубликовано - 7 июн 2019

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