Abstract
The process of collective de-excitation of atoms in a metastable level into emission mode of a single photon plus a neutrino pair, called radiative emission of neutrino pair (RENP), is sensitive to the absolute neutrino mass scale, to the neutrino mass hierarchy and to the nature (Dirac or Majorana) of massive neutrinos. We investigate how the indicated neutrino mass and mixing observables can be determined from the measurement of the corresponding continuous photon spectrum taking the example of a transition between specific levels of the Yb atom. The possibility of determining the nature of massive neutrinos and, if neutrinos are Majorana fermions, of obtaining information about the Majorana phases in the neutrino mixing matrix, is analyzed in the cases of normal hierarchical, inverted hierarchical and quasi-degenerate types of neutrino mass spectrum. We find, in particular, that the sensitivity to the nature of massive neutrinos depends critically on the atomic level energy difference relevant in the RENP.
| Original language | English |
|---|---|
| Pages (from-to) | 154-163 |
| Number of pages | 10 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 719 |
| Issue number | 1-3 |
| DOIs | |
| Publication status | Published - Feb 12 2013 |
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Keywords
- Leptonic CP violation
- Majorana neutrino
- Neutrino mass matrix
- Radiative neutrino pair emission
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Observables in neutrino mass spectroscopy using atoms. / Dinh, D. N.; Petcov, S. T.; Sasao, Noboru; Tanaka, M.; Yoshimura, Motohiko.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 719, No. 1-3, 12.02.2013, p. 154-163.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Observables in neutrino mass spectroscopy using atoms
AU - Dinh, D. N.
AU - Petcov, S. T.
AU - Sasao, Noboru
AU - Tanaka, M.
AU - Yoshimura, Motohiko
PY - 2013/2/12
Y1 - 2013/2/12
N2 - The process of collective de-excitation of atoms in a metastable level into emission mode of a single photon plus a neutrino pair, called radiative emission of neutrino pair (RENP), is sensitive to the absolute neutrino mass scale, to the neutrino mass hierarchy and to the nature (Dirac or Majorana) of massive neutrinos. We investigate how the indicated neutrino mass and mixing observables can be determined from the measurement of the corresponding continuous photon spectrum taking the example of a transition between specific levels of the Yb atom. The possibility of determining the nature of massive neutrinos and, if neutrinos are Majorana fermions, of obtaining information about the Majorana phases in the neutrino mixing matrix, is analyzed in the cases of normal hierarchical, inverted hierarchical and quasi-degenerate types of neutrino mass spectrum. We find, in particular, that the sensitivity to the nature of massive neutrinos depends critically on the atomic level energy difference relevant in the RENP.
AB - The process of collective de-excitation of atoms in a metastable level into emission mode of a single photon plus a neutrino pair, called radiative emission of neutrino pair (RENP), is sensitive to the absolute neutrino mass scale, to the neutrino mass hierarchy and to the nature (Dirac or Majorana) of massive neutrinos. We investigate how the indicated neutrino mass and mixing observables can be determined from the measurement of the corresponding continuous photon spectrum taking the example of a transition between specific levels of the Yb atom. The possibility of determining the nature of massive neutrinos and, if neutrinos are Majorana fermions, of obtaining information about the Majorana phases in the neutrino mixing matrix, is analyzed in the cases of normal hierarchical, inverted hierarchical and quasi-degenerate types of neutrino mass spectrum. We find, in particular, that the sensitivity to the nature of massive neutrinos depends critically on the atomic level energy difference relevant in the RENP.
KW - Leptonic CP violation
KW - Majorana neutrino
KW - Neutrino mass matrix
KW - Radiative neutrino pair emission
UR - http://www.scopus.com/inward/record.url?scp=84873161757&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873161757&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2013.01.015
DO - 10.1016/j.physletb.2013.01.015
M3 - Article
AN - SCOPUS:84873161757
VL - 719
SP - 154
EP - 163
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1-3
ER -