1,063 research outputs found
Can The Majorana neutrino CP-violating phases be restricted ?
We reanalyze the constraints in neutrino masses and MNS lepton mixing
parameters using the new data from the terrestrial (KamLAND) and astrophysical
(WMAP) observations together with the HEIDELBERG-MOSCOW double beta decay
experiment. It leads us to the almost degenerate or inverse hierarchy neutrino
mass scenario. We discuss the possibility of getting the bound for the Majorana
CP violating phase.Comment: 6 pages, 2 figure
Modeling the obesity epidemic: Social contagion and its implications for control
published_or_final_versio
The impact of model building on the transmission dynamics under vaccination: Observable (symptom-based) versus unobservable (contagiousness-dependent) approaches
published_or_final_versio
Bounds on effective Majorana neutrino masses at HERA
The lepton-number violating process e p \to nu_e l l' X mediated by Majorana
neutrinos is studied for the HERA collider for (l l') = (e tau), (mu tau), (mu
mu) and (tau tau). Only the muonic decay of the tau is considered. The direct
limit on the effective muon Majorana mass, is improved
significantly to 4.0 times 10^3 GeV and for the first time direct limits on the
analogous effective masses connected with the tau sector are given, namely 4.2
times 10^3 GeV for , 4.4 times 10^3 GeV for and 2.0
times 10^4 GeV for . We find that a more general analysis for an
upgraded HERA could improve this values by a factor of up to 40, yet still
being orders of magnitude worse than indirect limits.Comment: 9 pages, 4 figures, revised versio
Vaccination and clinical severity: Is the effectiveness of contact tracing and case isolation hampered by past vaccination?
published_or_final_versio
Constraints from Neutrinoless Double Beta Decay
We examine the constraints from the recent HEIDELBERG-MOSCOW double beta
decay experiment. It leads us to the almost degenerate or inverse hierarchy
neutrino mass scenario. In this scenario, we obtain possible upper bounds for
the Majorana CP violating phase in the lepton sector by incorporating the data
from the neutrino oscillation, the single beta decay experiments, and from the
astrophysical observation. We also predict the neutrino mass that may be
measurable in the future beta decay experiments.Comment: 10 pages, 3 figure
Contact behaviour of children and parental employment behaviour during school closures against the pandemic influenza A (H1N1-2009) in Japan
published_or_final_versio
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