Increasing luminosity at the Large Hadron Collider (LHC) poses a challenge for primary vertex reconstruction in ATLAS. A rate of 70 or more inelastic proton-proton collisions per beam crossing was observed during the recently-completed Run 2 and even higher vertex density, or pile-up, is expected in Run 3. To meet this challenge, ATLAS has developed new tools: a Gaussian track density seed finder and an adaptive multi-vertex finder. The former constructs a simple but powerful analytic model of the track density along the beam axis to locate candidate vertices, and the latter applies a global approach to vertex finding and fitting, allowing vertices to compete for nearby tracks. This note documents the strategy, optimization and preliminary ...
This paper presents the method and performance of primary vertex reconstruction in proton–proton col...
his paper presents the method and performance of primary vertex reconstruction in proton\u2013proton...
The track and vertex reconstruction algorithms of the ATLAS Inner Detector have demonstrated excelle...
Increasing luminosity at the Large Hadron Collider (LHC) poses a challenge for primary vertex recons...
Increasing pileup multiplicity in ATLAS, reaching 70 inelastic proton-proton collisions per beam cro...
The increasing track multiplicity in ATLAS poses new challenges for primary vertex reconstruction so...
Efficient and precise reconstruction of the primary vertex in an LHC collision is essential in both ...
The reconstruction of vertices corresponding to proton--proton collisions in ATLAS is an essential e...
Efficient and precise reconstruction of the primary vertex in a LHC collision is essential for deter...
In preparation for LHC Run 3, ATLAS completed a major effort to improve the track reconstruction per...
The reconstruction of vertices corresponding to proton--proton collisions in ATLAS is an essential e...
This paper presents the method and performance of primary vertex reconstruction in proton–proton col...
This paper presents the method and performance of primary vertex reconstruction in proton-proton col...
Presented in this contribution are methods currently developed and used by the ATLAS collaboration t...
This paper presents the method and performance of primary vertex reconstruction in proton–proton col...
his paper presents the method and performance of primary vertex reconstruction in proton\u2013proton...
The track and vertex reconstruction algorithms of the ATLAS Inner Detector have demonstrated excelle...
Increasing luminosity at the Large Hadron Collider (LHC) poses a challenge for primary vertex recons...
Increasing pileup multiplicity in ATLAS, reaching 70 inelastic proton-proton collisions per beam cro...
The increasing track multiplicity in ATLAS poses new challenges for primary vertex reconstruction so...
Efficient and precise reconstruction of the primary vertex in an LHC collision is essential in both ...
The reconstruction of vertices corresponding to proton--proton collisions in ATLAS is an essential e...
Efficient and precise reconstruction of the primary vertex in a LHC collision is essential for deter...
In preparation for LHC Run 3, ATLAS completed a major effort to improve the track reconstruction per...
The reconstruction of vertices corresponding to proton--proton collisions in ATLAS is an essential e...
This paper presents the method and performance of primary vertex reconstruction in proton–proton col...
This paper presents the method and performance of primary vertex reconstruction in proton-proton col...
Presented in this contribution are methods currently developed and used by the ATLAS collaboration t...
This paper presents the method and performance of primary vertex reconstruction in proton–proton col...
his paper presents the method and performance of primary vertex reconstruction in proton\u2013proton...
The track and vertex reconstruction algorithms of the ATLAS Inner Detector have demonstrated excelle...