At the seminar, consideration was given to advantages and drawbacks of methods for measuring coordinates of the laser beam center and determining the range and amount of laser beam displacements using the quadrant photoreceiver, CCD matrix, and dividing plates.
The results of the double beta decay investigations were reported. The investigations are carried out with the TGV-2 andObelix low-background HPGe spectrometers at the Modane underground laboratory (France) at a depth of 4800 m water equivalent. The main goal of the measurements with the 32-detector spectrometer TGV-2 is direct detection of the two-neutrino double electron capture in the 106Cd decay.
Today, on 20 June 2018, a scientific seminar was held at the JINR Scientists’ Club to celebrate the 90th birthday of Prof. S.M. Bilenky. The seminar was organized by the Dzhelepov Laboratory of Nuclear Problems and the Bogolyubov Laboratory of Theoretical Physics.
See more photos here.
An important result of the hadron programme at COSY (Jülich, Germany) is the isoscalar resonance with the mass of 2380 MeV and width of about 70 MeV observed by the WASA collaboration in the reactionpn→dπ0π0.
Ludmila Kolupaeva is one of the finalists of the poster session at the international conference Neutrino2018
Ludmila Kolupaeva became one of the finalists of the poster session at the international conference Neutrino2018 in Heidelberg. We hearlity congratulate Lyudmila and wish her further victories!
The TAIGA Collaboration Workshop takes place at DLNP on 5–8June2018. Representatives from Russian and German research centers participate in the workshop, discussing physical results obtained at the facility in 2015–2018, its current development status, and the nearest future prospects.An emphasis is placed on completing the fabrication of the second IACT-2gamma telescope at JINR, which is scheduled to be sent to Tunka this July.
The ATLAS collaboration published the results of searching for the associative production of a Higgs boson and a top–antitop quark pair
The ATLAS collaboration published the results of searching for the associative production of a Higgs boson and a top–antitop quark pair. Investigations were performed using the data collected in the channels of the Higgs boson decay into \(b\bar b\), WW∗, τ+τ−, γγ and ZZ∗over the entire LHC operation period. The production was observed with the statistical significance of 6.3 standard deviations at the expectation of 5.1 within the Standard Model. It is a pleasure to point out that DLNP scientists take an active part in this analysis, dealing with the channel of the Higgs boson decay into τ+τ−.
Direct interaction of the Higgs boson with the top quark is measured for the first time during a rare subatomic process
Yesterday, on 04 June 2018, two experiments, ATLAS and CMS, at the LHC, CERN, reported a discovery that relates two particles: the Higgs boson and the top quark.The scientists measured for the first time direct interaction of the Higgs boson with the top quark during a rare subatomic process.
The Higgs boson was predicted in the 1960s and observed in the CMS and ATLAS experiments in 2012 in collisions of LHC-generated protons by detecting particles into which is decays.The Higgs mechanism, which involves the Higgs boson, gives masses to elementary particles while leaving the photon massless.The Standard Model would be incomplete without the Higgs mechanism at LHC energies.Therefore, the t quark, most massive of quarks, must have the strongest relation to the Higgs boson.Production of a Higgs boson with a top–antitop quark pair (tt̄H) is a rare process, but it allows one to observe how these particles are related to each other.The top quark was observed in the CDF and DZero experiments at Fermilab’s Tevatron in 1995. Despite predictions of scientists about interaction of the top quark with the Higgs boson, all indications were, until now, below the threshold that allowed claiming a discovery. Now everything is quite different after the publications in Physical Review Letters and arXiv.org.