Now showing items 1-4 of 4
Study of heavy-flavor quarks produced in association with top-quark pairs at √s =7 TeV using the ATLAS detector
(American Physical Society, 2014-04-21)
Using a sample of dilepton top-quark pair (tt¯) candidate events, a study is performed of the production of top-quark pairs together with heavy-flavor (HF) quarks, the sum of tt¯+b+X and tt¯+c+X, collectively referred to ...
Search for the lepton flavor violating decay Z →eμ in pp collisions at √s=8TeV with the ATLAS detector
(American Physical Society, 2014-10-23)
The ATLAS detector at the Large Hadron Collider is used to search for the lepton flavor violating process Z→eμ in pp collisions using 20.3 fb⎻¹ of data collected at √s=8 TeV. An enhancement in the eμ invariant mass ...
Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at √s = 8TeV with the ATLAS detector
(American Physical Society, 2014-07-10)
A search is presented for production of dark-matter particles recoiling against a leptonically decaying Z boson in 20.3 fb⎻¹ of pp collisions at s√=8 TeV with the ATLAS detector at the Large Hadron Collider. Events with ...
Measurement of the parity-violating asymmetry parameter αb and the helicity amplitudes for the decay Λb0 →J /ψ Λ0 with the ATLAS detector
(American Physical Society, 2014-05-27)
A measurement of the parity-violating decay asymmetry parameter, αb, and the helicity amplitudes for the decay Λ0b→J/ψ(μ+μ−)Λ0(pπ−) is reported. The analysis is based on 1400 Λ0b and Λ¯0b baryons selected in 4.6 fb−1 of ...