MAGNETIC MONOPOLE: FIRST RESULTS OF MOEDAL

Magnetic Monopole NMoEDAL (Monopole & Exotics Detector at the LHC), the experiment dedicated to magnetic monopole research at CERN, narrows the field of investigation and sets new limits on the mass of these hypothetical particles. The result was published in the first half of August in the Journal of High Energy Physics (JHEP). The discovery of magnetic monopoles would have a tremendous impact in particle physics, astrophysics and cosmology.
Hypothesized by physicist Paul Dirac in 1931, magnetic monopoles have still not been observed by any experiment. However, although it is common experience that from a cut magnet only two smaller magnets can be obtained, with a north pole and a south pole, theory suggests that magnetism may be a property of elementary particles. And at the current collision energies of the LHC, physicists could be in a position to observe them. The presence of monopoles would be revealed by their magnetic charge and by their enormous ionizing power. The study published is based on the analysis of the data acquired during the first run of the LHC, when part of the detection system, the trapping detector, was at the prototype stage. At the moment, the MoEDAL collaboration is actively engaged in analysing the data acquired from the detector in its final configuration.
 

the paper

https://arxiv.org/abs/1604.06645

pictures

https://cds.cern.ch/record/2157891

https://cds.cern.ch/record/2162912

Videos: 

https://cds.cern.ch/record/1360998

https://cds.cern.ch/record/2206363

 

website

http://moedal.web.cern.ch/

FAREWELL TO ROBERTO PETRONZIO

petronzio1Roberto Petronzio, an outstanding theoretical physicist, Professor at the Tor Vergata University in Rome and President of the Italian Institute for Nuclear Physics (INFN) from 2004 until 2011, has died.
As President of the INFN, Mr. Petronzio played a key role at a very delicate moment for the research agency. During a difficult period of reform, he succeeded in safeguarding our independence, autonomy and system of governance, characteristics which make the INFN unique in Italy and a centre of excellence that is recognised worldwide. Convinced of the need for a major international project to give new impetus to research in Italy and attract resources and talented young scientists from abroad, in recent years Mr. Petronzio was wholeheartedly committed to the SuperB project to build a new particle accelerator in the Italian region of Lazio. This project of great scientific importance was, however, unable to go ahead in Italy and is now being implemented in Japan using the original project design developed at the INFN's Frascati National aboratory. A physicist of international repute, Mr. Petronzio collaborated with CERN in Geneva, the Ecole Normale Supérieure in Paris, the Max Planck Institute in Munich and Boston University. His scientific activity mainly concerned the fundamental principles and development of perturbative quantum chromodynamics, constraints on the value of the Higg's mass, unified theories and physics signals beyond the Standard Model. He, along with Nicola Cabibbo, made a fundamental contribution to developing the INFN’s APE super-calculators project. He published more than 190 scientific works and has been cited over 11 thousand times.

 

 

 

 

LISA PATHFINDER SHOWS THE WAY

LISA Pathfinder in space 2016 contributonews version in english - In orbit since January 2016, 1.5 million kilometres from Earth in the direction of the Sun, the LISA Pathfinder mission in just a few
months has achieved its goal, demonstrating with an accuracy greater than expectations the technological feasibility of building a gravitational wave space observatory. The probe, built by ESA with the fundamental contribution of the Italian Space Agency (ASI), of INFN and of the University of Trento, was designed to test the technologies required for construction of the future eLISA observatory, a triangle of satellites connected by laser beams, 1 million km distant from each other and in orbit around the Sun, at 50 million km from Earth. The first two months of scientific activities of LISA Pathfinder show that the test masses on board the spacecraft, two 2 kg and 46 mm side gold-platinum cubes, are maintained in perfect free fall, undisturbed by other external forces, such as those due to solar wind or the Sun's radiation pressure. Substantially motionless with respect to each other, the two masses have a relative acceleration of less than ten millionths of a billionth (10-14) of the acceleration of gravity on Earth. The results were published in June in the journal Physical Review Letters.

http://home.infn.it/scambio/LISA/

http://home.infn.it/scambio/LISA/immagini/ 

EXTREME, PARTICLES ON DISPLAY

extreme inaugit is the first permanent exhibition, in Italy, dedicated to the physics of the infinitely small.
"Extreme, in search of particles"was inaugurated on 12thJuly at the Leonardo Da Vinci Museum of Science and Technology (MUST) of Milan, in the presence of Prime Minister Matteo Renzi and of the Minister of Education, University and Research, Stefania Giannini, of the Director of the MUST, Fiorenzo Galli, of the General Director of CERN, Fabiola Gianotti, and of the President of INFN, Fernando Ferroni. A project which was conceived and borne thanks to the collaboration between the three MUST, INFN and CERN institutions.
Extremeintroduces its visitors to a research area that can boast a long and prestigious tradition, and which in recent years has gained an ever increasing attention, thanks to important scientific achievements, such as the Nobel discovery of the Higgs boson.
Extreme reveals what happens inside the CERN and INFN laboratories. The exhibition space, that extends for a total of about 350 m2, composed by a main gallery, which fascinates for the exhibited large objects coming from the experiments, and by the side halls with insights on some of the base concepts of these studies. As a matter of fact, the exhibition path alternates objects of great historical and scientific value, with multimedia and interactive installations, and with textual and oral narration spoken also through the voices of the researches’ main players. The narration starts off from the concept of track, as an element that allows the recognition and reconstruction of an event that cannot be observed directly: a fundamental element in particle physics. The path continues with the instruments used by physicists to find tracks of particles, the detectors, and those used to produce them, the accelerators: an area of activity in which the LHC is the key player. Three different interactive installations introduce then the status quo of our current knowledge of particle physics, and some of the most interesting theoretical hypotheses awaiting an experimental verification, such as the existence of dark matter and extra-dimensions. An installation curated by the INFN is dedicated to the latter theme in particular: visitors can go for a virtual dip into other dimensions, which, according to physicists, could be surrounding the three-dimensional space we live in. The narration also puts a special focus on the places and the people in research - specialists like physicists, engineers and technicians - describing their daily life inside the labs, and eventually showing some examples of the most important ramifications of these researches in other areas. A visit to Extreme puts the visitor in a position of both awe and concreteness at the same time while approaching the world of research on the infinitely small and the achievements of those who work in the field.