Evidence for the production of three massive vectorbosons in pppp collisions with the ATLAS detector

A search for the production of three massive vector bosons in proton--proton collisions is performed using data at s√=13TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015--2017, corresponding to an integrated luminosity of 79.8fb−1. Events with two same-sign leptons ℓ (electrons or muons) and at least two reconstructed jets are selected to search for WWW→ℓνℓνqq. Events with three leptons without any same-flavour opposite-sign lepton pairs are used to search for WWW→ℓνℓνℓν, while events with three leptons and at least one same-flavour opposite-sign lepton pair and one or more reconstructed jets are used to search for WWZ→ℓνqqℓℓ. Finally, events with four leptons are analysed to search for WWZ→ℓνℓνℓℓ and WZZ→qqℓℓℓℓ. Evidence for the joint production of three massive vector bosons is observed with a significance of 4.0 standard deviations, where the expectation is 3.1 standard deviations

Nitrogen deposition and temperature structure fungal communities associated with alpine moss-sedge heath in the UK

Funding Information: We are very grateful to Ruth Mitchell, Dave Riach, Julia Fisher and Hannah Urpeth for their help with fieldwork. Helaina Black is thanked for helpful discussion during the design of the project. Numerous conservation agency staff and landowners gave permission to carry out work on their land, without which this study would not have been possible. The study was financially supported by the Scottish Government Rural and Environment Science and Analytical Services Division (RESAS).Peer reviewe

Contained/Contenu

An exhibition of ceramic and glass works by 7 international artists, in the ceramic museum Musée Ariana in Geneva, curated by Ana Quintero Perez, of the museum, and Monique Deul independent curator and founder of Taste Contemporary in Geneva. Alison Britton contributed 5 ceramic works to the exhibition

Examining a potential brown treesnake transport pathway: shipments from Guam

Shipments of cargo and household goods have been identified as pathways for brown treesnake (Boiga irregularis) transport from Guam to other locations. We analyzed data regarding shipments of military household goods leaving Guam during 2006 to 2009 to identify the potential for human transport of brown treesnakes to the United States by determining when shipments most commonly occur and identifying primary receiving areas. We found that the number of shipments was highest during the months of May and June and that California receives more shipments (23% of total shipments) than any other location. Approximately 98% of shipments originated from the U.S. Navy and U.S. Air Force, with naval shipments increasing over time. Guam is currently undergoing a military buildup during which shipments are expected to increase, suggesting the need for increased vigilance and prioritization of inspection efforts

The Global Campaign to Eliminate Leprosy

While effective drug treatments have reduced the global disease burden, there remain important challenges to fighting and controlling the disease

Testbeam studies of pre-prototype silicon strip sensors for the LHCb UT upgrade project

The LHCb experiment is preparing for a major upgrade in 2018-2019. One of the key components in the upgrade is a new silicon tracker situated upstream of the analysis magnet of the experiment. The Upstream Tracker (UT) will consist of four planes of silicon strip detectors, with each plane covering an area of about 2 m$^2$. An important consideration of these detectors is their performance after they have been exposed to a large radiation dose. In this article we present test beam results of pre-prototype n-in-p and p-in-n sensors that have been irradiated with fluences up to $4.0\times10^{14}$ $n_{\rm eq}$ cm$^{-2}$.Comment: 25 pages, 20 figure

Legacy effects of nitrogen and phosphorus additions on vegetation and carbon stocks of upland heaths

Open Access via the Wiley Jisc Agreement. Funding Information Scottish Natural Heritage Royal Society of Edinburgh Fellowship Scottish Government Rural and Environment Science and Analytical Services Division (RESAS) N8 AgriFoodPeer reviewedPublisher PD

Ecological evolution in northern Iberia (SW Europe) during the Late Pleistocene through isotopic analysis on ungulate teeth.

During the Late Pleistocene, stadial and interstadial fluctuations affected vegetation, fauna, and human groups that were forced to cope with these pronounced climatic and environmental changes in time and space. These changes were especially abrupt during the Marine Isotopic Stage (MIS) 3. However, little is still known about the local and regional climatic conditions experienced by hominins in Europe. Here we reconstruct the climatic trends in northern Iberia considering the stable isotopic composition of ungulate skeletal tissues found in archaeological deposits dated between 80 to 15,000 cal BP. The carbon and oxygen isotopic composition preserved in the carbonate fraction of tooth enamel provides a reliable and high-resolution proxy of the food and water consumed by these animals, which is indirectly related to the local vegetation, environment, and climate, allowing us to estimate paleotemperatures and rainfall data. This study presents 44 bovine, equid, and cervid teeth from five archaeological sites in the Vasco-Cantabrian region (El Castillo, El Otero, Axlor, Labeko Koba, Aitzbitarte III) and one in the Mediterranean area (Canyars), where human evidence is attested from the Mousterian to the Magdalenian. The carbon isotope values reflect animals feeding on C3 plants with a mix-feeder diet mainly developed in open environments. However, carbon isotope value ranges point to differentiated ecological niches for equids and bovines, especially during the Aurignacian in the Vasco-Cantabrian region. Temperature estimations based on oxygen isotopic compositions and rainfall obtained from carbon isotopic compositions indicate colder and more arid conditions than nowadays from the Late Mousterian to the Aurignacian. The contemporary Mediterranean site shows slightly lower temperatures related to an arid period when animals mainly graze in open landscapes. In the Vasco-Cantabrian region, during the MIS2, the Gravettian data reflect a landscape opening, whereas the Magdalenian point to warmer conditions but still arid