Review of the DLNP Seminar on February 5, 2020 by Oleg Smirnov “Neutrino Geophysics: Recent Data”

Neutrino geophysics is a new quickly developing field of science as a synergy of geology, geophysics and elementary particle physics. It studies the Earth’s interior by measuring geoneutrino fluxes at its surface. The Borexino collaboration has recently presented the final analysis of the obtained data after 12 years of the detector operation. The exposition was increased due both to additional data and to improvement of their selection criteria.

Review of the DLNP Seminar on January 28, 2020 by Osvaldo Civitarese (Department of Physics, University of La Plata, Argentina) "The ANDES Underground Laboratory Project"

This talk will be devoted to the presentation of the ANDES underground laboratory project, which is a component of the Agua Negra Tunnel road complex, a 14 Km long tunnel under the Andes high mountains connecting Argentina and Chile. We shall talk about the motivations, prospects and design of this facility, which will be the first of its type in the southern hemisphere.

Signals from Inside the Earth: Borexino Experiment Releases New Data on Geoneutrinos

Scientists involved in the Borexino collaboration have presented new results of the measurement of neutrinos originating from the interior of the Earth. The Borexino detector is located 1,400 metres below the Earth's surface in the Gran Sasso massif near Rome. The elusive "ghost particles" rarely interact with matter, making their detection extremely difficult. With this update, the researchers have now been able to access almost twice as many events as in the previous analysis of the data. The results provide an exclusive insight into processes and conditions in the Earth's interior that remain puzzling to this day.

Review of the DLNP Seminar on January 22, 2020 by Mark Shirchenko “Search for Sterile Neutrinos in Short-Baseline Experiments”

At the seminar, the status of the experiments on the search for sterile states of neutrinos was analysed for the range of mixing angles and mass parameters corresponding to oscillations within short distances (of about several metres to tens of metres). The predominant way of studying the processes of this kind are the experiments on nuclear experimental and power reactors.

Information Platform “Web Magazine and Club of JINR Employees” Was Officially Launched

At the end of the last year, on December 28, the public project “Web Magazine and Club of JINR Employees” was presented by its Head, an VBLHEP engineer Gleb Stiforov. The project, already nicknamed “MC2 Club”, is intended to accumulate on its web platform all the background and reference information, which could be helpful for JINR guests and staff members and which would make staying and living in Dubna convenient.

New Year Cake That NOvA baked!

Summing up the results of the passing year, the NOvA group at JINR presented its scientific achievements in a new way, with oscillation contours as cake decorations! On the cake icing you can see the results of the year 2019 of the oscillation data analysis obtained with neutrino and antineutrino beams in channels of electron neutrino appearance and muon neutrino disappearance.      

Cryostat for the Crystal Barrel Experiment on its Way to Bonn!

At the beginning of December 2019, the cryostat for obtaining ultra-low temperatures, developed and produced under the guidance of Yuri Andreyevich Usov in the DLNP Sector of Low Temperatures, was transported to the JINR customs warehouse. The cryostat is an important part of a new frozen polarized target for polarization experiments at the ELSA accelerator of the University of Bonn. This polarized target is being created in cooperation between DLNP and two universities (in Bonn and Mainz) for conducting double polarization experiments (beam + target). The studies are performed within the Crystal Barrel collaboration.

Celebrating the 70th Anniversary of the Operation Start of the Synchrocyclotron at JINR

Last Friday, the 70th anniversary of the launch of the JINR Synchrocyclotron was celebrated. At the festive lunch, heroic creators of the Synchrocyclotron, all veterans of the Laboratory of Nuclear Problems were honoured. The whole history of the oldest JINR laboratory, all achieved and world-recognized results of its scientific staff, considerable experience accumulated in the fields of nuclear physics, high-energy physics, condensed matter physics – all this is closely connected with the launch and long-term successful operation of the Synchrocyclotron in Dubna.

Review of the DLNP Seminar on December 24, 2019 by Jon Kostikovich Karapetyan, Director of the Nazarov Institute of Geophysics and Engineering Seismology of the National Academy of Sciences of the Republic of Armenia

“Studies of Geodynamics and Possibilities of Predicting Earthquakes in Armenia. Laser-Inclinometer Observations in Armenia Aimed at Investigating the Stress-Strain State of the Earth’s Crust”

Congratulations to Lyudmila Kolupayeva and Anton Dolzhikov, the winners of the JINR Prize Competition 2019 for Young Scientists and Specialists!

Lyudmila Kolupayeva Anton Dolzhikov

Review of the DLNP Seminar on December 17, 2019 by Igor Ivanov (IST, Lisbon) "Doing Spin Physics with Unpolarized Particles"

Spin physics is an intricate and fascinating chapter in HEP phenomenology. It seems inevitable that, in order to probe spin-parity properties of hadrons and their interactions, one needs either to collide polarized initial particles or to study non-trivial angular distributions in exclusive processes. I will argue that it is possible to probe spin- and parity-dependent observables in inclusive processes with unpolarized particles — provided, they are prepared in a "twisted" state, that is, a non-plane-wave state equipped with a non-zero orbital angular momentum with respect to its propagation direction.

Our Congratulations to Danila Kozhevnikov on the Successful Defense of the Candidate of Science Dissertation!

On December 6, 2019, the defense of the Candidate of Science dissertation in Physics and Mathematics by Danila Kozhevnikov “Development of the multi-energy X-ray tomography method using detectors based on microchips of the Medipix family”, specialty 01.04.01 – “Instruments and Methods of Experimental Physics”, took place at the session of the Dissertation Council D 003.016.03 of Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences (Novosibirsk). Our congratulations to Danila on the successful defense! Further scientific achievements and good luck!