HEPD Seminars (Tuesdays) and Joint HEPD-THD Seminars (Thursdays)
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Next seminar:
Topic: " Quantum Models of Electron with Zero Self-energy. "
Speaker: V.P. Neznamov (VNIIEF, Sarov)
Place: PNPI, Building 7, small conference hall ).
Time: January 21 of 2025 year, Seminar: 10:30.
Contact persons:
Dr. Sergey I. Manaenkov (Phone: +7 (813 71) 46196 or
e-mail )
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PNPI seminars:
Topic: Ultra-high energy neutrinos are proposed to be studied at Lake Vostok in Antarctica -
Speech at the institute-wide seminar".
Speaker: А.A.Zakharov (PNPI NRC KI-OPR, Gatchina).
Place: PNPI, Building 7, Main Conference Hall .
Time: September 26, 2023.
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Topic: Studies of exotic nuclei at the ACCULINNA-2 facility. Prospects for low-energy nuclear physics in the Russian Federation -
Grigorenko-Gatchina-2022.pdf".
Speaker: Academician of the RAS L.V.Grigorenko (JINR, Dubna).
Place: PNPI, Building 7, Main Conference Hall .
Time: September 22, 2022, at 11:00.
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Topic: "Laser ion source: history, status, prospects." (
Speech at a meeting of the Academic Council - Barzakh_RILIS-2020.pdf).
Speaker: A.E.Barzakh (PNPI NRC KI, Gatchina).
Place: PNPI, Building 7, Main Conference Hall .
Time: October 22, 2020, at 15:00.
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Topic: "Periodic Table after 150 years: superheavy elements."
(Abstract in the format pdf=180 kb,
More about the seminar)
Speaker: Academician of the RAS Y.TS. Oganesyan (Laboratory of Nuclear Reactions to them. G.N. Flerov Joint Institute for Nuclear Research (JINR)).
Place: PNPI, Building 7, Main Conference Hall .
Time: June 5, 2019, at 15:00.
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Topic: "Study on muon channel of Swiss meson facility. Muon catalysis of nuclear dd and dt fusion. Muon capture by light hydrogen nuclei."
(Report in the format pdf=12 Mb)
Speaker: A.A.Vorobyov (PNPI NRC KI, Gatchina).
Place: PNPI, Building 7. Main Conference Hall
Time: February 21, 2013, at 11:00
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Joint seminar H E P D - T H D :
Topic: " Relic Majorana Fermions as Possible Candidates for Dark Matter Particles. "
Speaker: V.I. Sbitnev (NRC KI - PNPI)
Place: PNPI, Building 7. small conference hall
Time: January 23, 2025, Seminar: 14:30
Contact persons:
Prof. M.G. Ryskin (Phone: +7 (813 71) 46096 or
e-mail )
Prof. V.T. Kim (Phone: +7 (813 71) 46722 or
e-mail )
Dr. M.B. Zhalov (Phone: +7 (813 71) 46131 or
e-mail )
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HEPD Seminars in 2025 :
January 23, 2025 year, 14:30
Joint Seminar HEPD - TPD |
V.I. Sbitnev
(NRC KI - PNPI) |
Relic Majorana Fermions as Possible Candidates for Dark Matter Particles.
Abstract:
Among possible candidates for the role of dark matter particles, ranging from WIMPs
(weakly interacting massive particles) to ultralight axions, Majorana fermions occupy an intermediate position in this line
of candidates in terms of masses comparable to neutrino masses. The main paradigm underlying the derivation of the Majorana fermion
is Lambda + Cold Dark Matter - LambdaCDM (Cold Dark Matter). The resulting formula for the mass of the Majorana fermion contains three
key parameters - Planck's constant, the critical density distribution of dark matter, and the temperature of the relict
cosmic radiation (T = 2.725 K). The calculated mass of the fermion (~0.04 eV) gives good agreement with the experimentally measured
neutrino masses. This gives grounds to assert that Majorana fermions represent neutrinos. It follows from the formula that there may
be three generations of fermions, each of which shows differences in mass.
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| January 21 of 2025 year, 10:30 |
V.P. Neznamov
(VNIIEF, Sarov) |
Quantum Models of Electron with Zero Self-energy.
Video
Abstract:
Two models of the electron with zero self-energy are proposed
on the basis of the modernized regular charged Reissner-Nordtstr$\"{o}$m
and Kerr-Newman metrics with quantum cores.
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January 16, 2025 year, 14:30
Joint Seminar HEPD - TPD |
A.N. Semenova
(NRC KI - PNPI) |
Teleparallel Theory of Gravity by Hayashi-Shirafuji.
Abstract:
The generally accepted theory of gravity is Einstein's General Theory of Relativity (GTR),
where gravity is a consequence of the curvature of space-time due to the presence of matter.
Despite the great success of this approach, there are certain difficulties with quantizing GTR
and with describing Dark Matter within its framework. There is an idea to modify the theory of gravity in such a way
that the effects of Dark Matter can be described as purely gravitational.
One of the variants of such a modification is the teleparallel theory by Hayashi-Shirafuji,
where the main geometric characteristic is torsion, and the dynamic variable is a tetrad.
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