PEOPLE

JUNE 2016

THE GLOBAL EFFORT TO STUDY ARTIFICIAL NEUTRINOS RESTARTS IN THE USA
Interview with Sergio Bertolucci, from 2008 to 2015 director of research at CERN, today INFN coordinator of DUNE (Deep Underground Neutrino Experiment)


Following the closure of the SLAC (Stanford Linear Accelerator) PEP-II and Chicago Fermilab (Fermi National Accelerator Laboratory) Tevatron accelerators - resulting in the confluence of many American physicists towards the LHC accelerator at CERN - the US has redefined its particle physics research strategy. The research programme, scheduled until 2024, is included in the P5 (Particle Physics Project Prioritization Panel) Report and envisages the assignment of high priority to neutrino physics and re-launch of the Fermilab in Chicago, home of the most intense neutrino beam in the world. With the Sanford Underground Research Facility, in South Dakota, Fermilab is one of the two infrastructures on which the LNBF (Long Baseline Neutrino Facility)/DUNE project is based and whose overall character is well represented by the number of countries, 27, involved in its design. The giant underground LNBF laboratory will be built to house DUNE, the world's largest experiment with international governance to study the properties of neutrinos. Presented for the first time in January 2014 to the Fermilab Committee by the then director of research at CERN, Sergio Bertolucci, LNBF/DUNE envisages laying the foundation stone by 2017 and the start of experimentation in 2024. In 2015 Italy, represented by INFN, through the Ministry of Education, Universities and Research, signed a technical cooperation agreement with the DOE for research at Fermilab. Bertolucci is currently coordinating the Italian physicists, belonging to INFN, engaged with DUNE in neutrino research.

 

What is the basis for this ambitious global neutrino programme?

The main point of contact between the American P5 Report and the global strategy for particle physics is the recognition that particle physics is currently the most globalised field of science in existence. ...

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NEWS

MAY 2016

SPACE

LISA PATHFINDER SHOWS THE WAY

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 ...

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RESEARCH

GRAVITATIONAL WAVES DETECTED FOR THE SECOND TIME

Observation of a second gravitational wave event was announced during a joint press conference by the scientists of the LIGO and VIRGO scientific collaborations, in which INFN is taking part. ...

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INTERNATIONAL COLLABORATION

FROM THE SOUTHERN NATIONAL LABORATORIES THE FIRST PLASMA FOR ESS

The first plasma in the proton source for the European Spallation Source (ESS), which is under construction in Lund, Sweden, has been produced. ...

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INFRASTRUCTURES

ITALY, WITH BOLOGNA, AWARDED THE HEADQUARTERS OF CTA

Bologna has been chosen as the headquarters of the Cherenkov Telescope Array Observatory (CTA Observatory), and Berlin as the headquarters of the Science Data Management Centre (SDMC) ...

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SPACE

FERMI WILL CONTINUE TO OBSERVE THE SKY UNTIL 2018

The Fermi gamma ray space observatory, in orbit since 2008 and built and led by a large international collaboration in which Italy is participating with the Italian Space Agency (ASI), ...

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INNOVATION

CERN-INFN AGREEMENT FOR A NETWORK OF BUSINESS INCUBATION CENTRES (BICs)

CERN and INFN have signed an agreement for the development of an Italian network of Business Incubation Centres (BIC), coordinated by INFN, which will have the objective of creating ...

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FOCUS ON


PAMELA: COSMIC RAYS OBSERVED FROM SPACE

15 June 2016 marked the tenth anniversary of the PAMELA (Payload for Antimatter Exploration and Light-nuclei Astrophysics) satellite detector, the space observatory for the study of cosmic rays, currently in orbit at 560 km above the Earth. Launched in 2006 with a Soyuz rocket from the Baikonur base in Kazakhstan, included on board the Russian satellite Resurs-DK1, for all this time PAMELA has been acquiring data and obtaining fundamental results. The result of an Italo-Russian collaboration also involving Germany and Sweden, the mission is led by INFN and supported by the Italian Space Agency (ASI). Certainly among the most significant and promising scientific contributions of the mission, the first measurement of high-energy positron and antiproton streams has over the years enabled a new field of investigation on dark matter to be opened. Great interest was aroused, in particular, by the excess of positrons detected by PAMELA and published in Nature in the first half of 2009. Various explanations have been advanced by theoretical physicists in the more than 1,400 articles subsequently published. Contributions from the annihilation of dark matter or from pulsars, or changes in the propagation models of cosmic rays in the Galaxy have been postulated. Noteworthy were also the results of the measurements performed on proton and helium nuclei streams, i.e. almost all cosmic radiation, up to one billion MeV and published in Science in 2011. PAMELA for the first time demonstrated that these particles have slightly different energy spectra between the two species and have a change of slope at high energies. This data has shed new light on the mechanisms of production, acceleration and propagation of cosmic rays in our Galaxy. Among the results that have aroused great interest, also outside the scientific community, is the unexpected discovery of an antiproton belt around the Earth. Finally, the latest experiment data, published in Physical Review Letters on 13 June last, demonstrate for the first time with extreme clarity the effects of solar activity and the magnetic polarity of the Sun on cosmic rays, also providing unique information on heliosphere mechanisms. ...

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INFORMATION


cover image:

Artistic view of cosmic rays entering the Earth's atmosphere.

 

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