Abstract
A search is performed for collimated muon pairs displaced from the primary vertex produced in the decay of long-lived neutral particles in proton–proton collisions at s=7 TeV centre-of-mass energy, with the ATLAS detector at the LHC. In a 1.9 fb−1event sample collected during 2011, the observed data are consistent with the Standard Model background expectations. Limits on the product of the production cross section and the branching ratio of a Higgs boson decaying to hidden-sector neutral long-lived particles are derived as a function of the particlesʼ mean lifetime.
| Original language | English |
|---|---|
| Pages (from-to) | 32-50 |
| Number of pages | 19 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 721 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - 10 Apr 2013 |
| Externally published | Yes |
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ATLAS Collaboration (2013). Search for displaced muonic lepton jets from light Higgs boson decay in proton–proton collisions at √s = 7 TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 721(1-3), 32-50. https://doi.org/10.1016/j.physletb.2013.02.058