منابع مشابه
Detecting Double Beta Decays Using Nuclear Emulsions
Neutrino nature and absolute mass scale are major questions in particle physics which cannot be addressed by the present neutrino oscillation program. To answer these two questions, several neutrinoless double beta decay experiments are underway or planed for the near future. These experiments, mainly use bolometric techniques or gaseous counters coupled with scintillator detectors. The energy ...
متن کاملSpectroscopy of double-beta and inverse-beta decays from 100Mo for neutrinos.
Spectroscopic studies of two beta rays from 100Mo are shown to be of potential interest for investigating both the Majorana nu mass by neutrinoless double beta decay (0nubetabeta) and low energy solar nu's by inverse beta decay. With a multiton 100Mo detector, coincidence studies of correlated betabeta from 0nubetabeta, together with the large Q value ( Q(betabeta)), permit identification of th...
متن کاملNew class of Majoron-emitting double- beta decays.
Motivated by the excess events that have recently been found near the endpoints of the double beta decay spectra of several elements, we re-examine models in which double beta decay can proceed through the neutrinoless emission of massless Nambu-Goldstone bosons (majorons). Noting that models proposed to date for this process must fine-tune either a scalar mass or a VEV to be less than 10 keV, ...
متن کاملCompetition between standard and exotic double beta decays
We evaluate the contributions of higher order terms in weak Hamiltonian to the standard twoneutrino double beta decay. It is shown that only the first-forbidden unique transitions can alter the two-electron energy spectrum. Yet, their effect is too small to screen the detection of exotic neutrinoless double beta decays, which are candidates for testing the physics beyond the standard model. PAC...
متن کاملPhase-space analysis of double ionization.
We use the Wigner transformation to study the electronic center-of-mass motion in phase-space for double ionization in a strong laser field. The rescattering mechanism is clearly visible in the evolution of the fully correlated two-electron system. In a mean-field calculation, on the other hand, the signatures of rescattering are missing. Some properties of the Wigner function in two-particle s...
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ژورنال
عنوان ژورنال: Frontiers in Physics
سال: 2019
ISSN: 2296-424X
DOI: 10.3389/fphy.2019.00012