Open heavy flavour and quarkonium production as a function of the multiplicity in pp and p-Pb collisions with ALICE at the LHC

Due to the large masses of beauty and charm quarks, their production cross sections can be computed in the framework of perturbative Quantum Chromodynamics. The correlation of quarkonium and open heavy-flavour hadron yields with charged particles produced in proton-proton (pp) and proton-lead (p-Pb) collisions can shed light on the interplay between hard and soft mechanisms in particle production. In this proceeding the results from D-meson and J/$\psi$ yields as a function of the charged-particle multiplicity in pp and p-Pb collisions are presented. Comparisons to theoretical models are also discussed.Comment: 7 pages, 3 figures, Proceedings of the 8th International Workshop on Multiple Partonic Interactions at the LHC, Chiapas, Mexic

WhatsApping terror: how media applied instant messaging to cover Barcelona terrorist attack

Audiences love live communication (Deuze, 2011), the possibility of reaching news in real time. Previous research focus on the reporting of natural disasters or emergency news like terrorist attacks show that the concept “news now” (Sheller, 2014) is an audience imperative in those contexts. Bauman’s (2000) liquid society is the objective public of this kind of content, characterized by mobility and the individualization of media consumption. Our paper analyzes how media adapted their publishing strategies to reach this public through mobile instant messaging during Barcelona terrorist attack coverage in August 2017. This type of social news and information flow is characterized by unpredictability, classlessness, and a lack of hierarchy (Rampazzo & Peret, 2017). In order to reach this main goal we applied mixed methods, based on quantitative and qualitative techniques. Firstly, we designed a directory of Spanish media applying Whatsapp and Telegram to connect with audiences. Then we analyzed the content distributed by all national, regional and local media through these platforms from 17th to 21th August 2017. The first informative alert appeared 25 minutes after the van was driven into pedestrians in Las Ramblas. According to our results, 214 headlines in WhatsApp and Telegram were directly connected with the terrorist attack, but not all of them offered the appropriate tone and/or respectful emoticons. Most of the media made a great effort increasing the regularity of their messages during those days, but only the national media focused their MIM (Mobile Instant Messaging) strategy on the attack. Finally we classified the reaction into three types of content: last minute alerts, contextualizing news and solidarity content.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Stamping single wall nanotubes for circuit quantum electrodynamics

We report on a dry transfer technique for single wall carbon nanotube devices which allows to embed them in high finesse microwave cavity. We demonstrate the ground state charge readout and a quality factor of about 3000 down to the single photon regime. This technique allows to make devices such as double quantum dots which could be instrumental for achieving the strong spin photon coupling. It can easily be extended to generic carbon nanotube based microwave devices.Comment: Version similar to the one accepte