NUCLEAR DOUBLE BETA DECAY, FUNDAMENTAL PARTICLE PHYSICS, HOT DARK MATTER, AND DARK ENERGY

被引:0
|
作者
Klapdor-Kleingrothaus, Hans V. [1 ,2 ]
Krivosheina, Irina V. [3 ]
机构
[1] Stahlbergwey 12, D-74931 Lobbach, Germany
[2] Heidelberg Univ, D-6900 Heidelberg, Germany
[3] Radiophys Res Inst NIRFI, Nishnij Novgorod, Russia
关键词
Heidelberg-Moscow Experiment; lepton number violation; Majorana neutrino; double beta decay; neutrino mass; R-parity violating SUSY; sneutrino mass; superheavy neutrinos; composite neutrinos; right-handed W boson mass; hot dark matter; dark energy; GAMOW-TELLER STRENGTH; NEUTRINO MASS; MATRIX-ELEMENTS; STANDARD MODEL; GENIUS-TEST; SUPERSYMMETRY; GE-76; RATES; DETECTORS; VIOLATION;
D O I
10.1142/9789814293792_0011
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Nuclear double beta decay, an extremely rare radioactive decay process, is - in one of its variants - one of the most exciting means of research into particle physics beyond the standard model. The large progress in sensitivity of experiments searching for neutrinoless double beta decay in the last two decades based largely on the use of large amounts of enriched source material in "active source experiments" - has lead to the observation of the occurrence of this process in nature (on a 6.4 sigma level), with the largest half-life ever observed for a nuclear decay process (2.2 x 10(25) y). This has fundamental consequences for particle physics - violation of lepton number, Majorana nature of the neutrino. These results are independent of any information on nuclear matrix elements (NME) *. It further leads to sharp restrictions for SUSY theories, sneutrino mass, right-handed W-boson mass, superheavy neutrino masses, compositeness, leptoquarks, violation of Lorentz invariance and equivalence principle in the neutrino sector. The masses of light-neutrinos are found to be degenerate, and to be at least 0.22 +/- 0.02 eV. This fixes the contribution of neutrinos as hot dark matter to >= 4.7% of the total observed dark matter. The neutrino mass determined might solve also the dark energy puzzle.
引用
收藏
页码:137 / +
页数:8
相关论文
共 50 条
  • [1] DARK MATTER, DARK ENERGY AND THE FUTURE OF PARTICLE PHYSICS
    Chevalier, L.
    Spiro, M.
    [J]. ACTA PHYSICA POLONICA B, 2015, 46 (03): : 729 - 735
  • [2] Searches on double beta decay and dark matter
    Fiorini, E
    [J]. NUCLEAR PHYSICS A, 2003, 721 : 171C - 181C
  • [3] Dark energy and fundamental physics
    Binetruy, Pierre
    [J]. DISCRETE 08: SYMPOSIUM ON PROSPECTS IN THE PHYSICS OF DISCRETE SYMMETRIES, 2009, 171
  • [4] Dark energy and fundamental physics
    Binetruy, P.
    [J]. ASTRONOMY AND ASTROPHYSICS REVIEW, 2013, 21
  • [5] Dark matter and particle physics
    Peskin, Michael E.
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2007, 76 (11)
  • [6] Dark energy and fundamental physics
    P. Binétruy
    [J]. The Astronomy and Astrophysics Review, 2013, 21
  • [7] Dark matter and particle physics
    Masiero, A
    Pascoli, S
    [J]. SUMMER SCHOOL ON ASTROPARTICLE PHYSICS AND COSMOLOGY, 2001, 4 : 79 - +
  • [8] Dark matter, dark energy and fundamental acceleration
    Edmonds, Douglas
    Minic, Djordje
    Takeuchi, Tatsu
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2020, 29 (14):
  • [9] Gaia, Fundamental Physics, and Dark Matter
    Perryman, Michael
    Zioutas, Konstantin
    [J]. SYMMETRY-BASEL, 2022, 14 (04):
  • [10] Can dark matter decay in dark energy?
    Pereira, S. H.
    Jesus, J. F.
    [J]. PHYSICAL REVIEW D, 2009, 79 (04):