scholarly journals Neutrinoless double beta decay and the baryon asymmetry of the Universe

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
Frank F. Deppisch ◽  
Lukas Graf ◽  
Julia Harz ◽  
Wei-Chih Huang
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Baryon Asymmetry ◽  
Double Beta Decay ◽  
The Universe

scholarly journals Lepton number violation and the baryon asymmetry of the universe

2015 ◽  
Vol 30 (17) ◽  
pp. 1530045 ◽  
Author(s):  
Julia Harz ◽  
Wei-Chih Huang ◽  
Heinrich Päs
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Lepton Number ◽  
Baryon Asymmetry ◽  
Double Beta Decay ◽  
Lepton Number Violation ◽  
Low Energies ◽  
Tight Connection ◽  
The Universe ◽  
Lepton Number Violating

Neutrinoless double beta decay, lepton number violating collider processes and the Baryon Asymmetry of the Universe (BAU) are intimately related. In particular, lepton number violating processes at low energies in combination with sphaleron transitions will typically erase any preexisting BAU. In this contribution, we briefly review the tight connection between neutrinoless double beta decay, lepton number violating processes at the LHC and constraints from successful baryogenesis. We argue that far-reaching conclusions can be drawn unless the baryon asymmetry is stabilized via some newly introduced mechanism.

scholarly journals Texture One Zero Model Based on A4 Flavor Symmetry and its Implications to Neutrinoless Double Beta Decay

2021 ◽  
Vol 9 (1) ◽  
pp. 67-71
Author(s):  
Rishu Verma ◽  
Monal Kashav ◽  
Ankush B ◽  
Gazal Sharma ◽  
Surender Verma ◽  
...  
Keyword(s):  
Beta Decay ◽  
Particle Physics ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Missing Information ◽  
Inverted Hierarchy ◽  
Mass Model ◽  
Elementary Particle Physics ◽  
Model Based ◽  
The Universe

Neutrinos are perhaps the most elusive particles in our Universe. Neutrino physics could be counted as a benchmark for various new theories in elementary particle physics and also for the better understanding of the evolution of the Universe. To complete the neutrino picture, the missing information whether it is about their mass or their nature that the neutrinos are Majorana particles could be provided by the observation of a process called neutrinoless double beta (0νββ) decay. Neutrinoless double beta decay is a hypothesised nuclear process in which two neutrons simultaneously decay into protons with no neutrino emission. In this paper we proposed a neutrino mass model based on A4 symmetry group and studied its implications to 0νββ decay. We obtained a lower limit on |Mee| for inverted hierarchy and which can be probed in 0νββ experiments like SuperNEMO and KamLAND-Zen. 

scholarly journals Neutrino Mass from Cosmology

2012 ◽  
Vol 2012 ◽  
pp. 1-34 ◽  
Author(s):  
Julien Lesgourgues ◽  
Sergio Pastor
Keyword(s):  
Beta Decay ◽  
Large Scale ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Neutrino Masses ◽  
Microwave Background ◽  
Complementary Information ◽  
Cosmological Observations ◽  
Cosmological Data ◽  
The Universe

Neutrinos can play an important role in the evolution of the universe, modifying some of the cosmological observables. In this contribution we summarize the main aspects of cosmological relic neutrinos, and we describe how the precision of present cosmological data can be used to learn about neutrino properties, in particular their mass, providing complementary information to beta decay and neutrinoless double-beta decay experiments. We show how the analysis of current cosmological observations, such as the anisotropies of the cosmic microwave background or the distribution of large-scale structure, provides an upper bound on the sum of neutrino masses of order 1 eV or less, with very good perspectives from future cosmological measurements which are expected to be sensitive to neutrino masses well into the sub-eV range.

scholarly journals Hiding neutrinoless double beta decay in the minimal seesaw mechanism

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Takehiko Asaka ◽  
Hiroyuki Ishida ◽  
Kazuki Tanaka
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay ◽  
Seesaw Mechanism

scholarly journals Flavored neutrinoless double beta decay

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Lukas Graf ◽  
Sudip Jana ◽  
Manfred Lindner ◽  
Werner Rodejohann ◽  
Xun-Jie Xu
Keyword(s):  
Beta Decay ◽  
Neutrinoless Double Beta Decay ◽  
Double Beta Decay
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