Paving the Way for Driverless Cars: A Policy Roadmap

Driverless cars present an unprecedented opportunity to transform the way we transport goods and people through cities and across countries, posing benefits to our collective safety, environment and economy. They also pose new risks; as cars become more connected, they become more vulnerable to malicious attacks by thieves and terrorists. This essay argues that the government should take active steps to position the UK at the forefront of autonomous vehicle technology, establishing itself as a world-leader in this rapidly approaching disruptive innovation

Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton-proton collisions at the LHC

This paper presents the method and performance of primary vertex reconstruction in proton-proton collision data recorded by the ATLAS experiment during Run 1 of the LHC. The studies presented focus on data taken during 2012 at a centre-of-mass energy of [Formula: see text] TeV. The performance has been measured as a function of the number of interactions per bunch crossing over a wide range, from one to seventy. The measurement of the position and size of the luminous region and its use as a constraint to improve the primary vertex resolution are discussed. A longitudinal vertex position resolution of about [Formula: see text] is achieved for events with high multiplicity of reconstructed tracks. The transverse position resolution is better than [Formula: see text] and is dominated by the precision on the size of the luminous region. An analytical model is proposed to describe the primary vertex reconstruction efficiency as a function of the number of interactions per bunch crossing and of the longitudinal size of the luminous region. Agreement between the data and the predictions of this model is better than 3% up to seventy interactions per bunch crossing