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pro vyhledávání: '"Gautam, Radha Raman"'
Autor:
Kumar, Sanjeev, Gautam, Radha Raman
Publikováno v:
Nucl. Phys. B 1001 (2024) 116520
We investigate the properties of neutrino mass matrices that incorporate texture zeros and generalized CP symmetries associated with tribimaximal mixing. By combining these approaches, we derive predictive neutrino mass matrices and explore their imp
Externí odkaz:
http://arxiv.org/abs/2312.07150
Autor:
Gautam, Radha Raman, Kumar, Sanjeev
Publikováno v:
Phys. Lett. B 820 (2021) 136504
We present a new texture of neutrino mass matrix having three complex relations among its elements and study in detail the phenomenological implications. A characteristic feature of the resulting neutrino mass matrix is that the atmospheric neutrino
Externí odkaz:
http://arxiv.org/abs/2107.01526
We propose new mixing schemes for (3+1) neutrinos which describe mixing among active-active and active-sterile neutrinos. The mixing matrix in these mixing schemes can be factored into a zeroth order flavor symmetric part and another part representin
Externí odkaz:
http://arxiv.org/abs/1902.01742
Autor:
Gautam, Radha Raman
Publikováno v:
Phys. Rev. D 97, 055022 (2018)
We analyze neutrino mass matrices having one texture zero, assuming that the neutrino mixing matrix has either its first (TM$_1$) or second (TM$_2$) column identical to that of the tribimaximal mixing matrix. We found that all the six possible one te
Externí odkaz:
http://arxiv.org/abs/1802.00425
Neutrino mass matrices with three or four vanishing cofactors and non diagonal charged lepton sector
Publikováno v:
Phys. Rev. D 96, 095002 (2017)
We investigate the texture structures of lepton mass matrices with four (five) non-zero elements in the charged lepton mass matrix and three (four) vanishing cofactors in the neutrino mass matrix. Using weak basis transformations, all possible textur
Externí odkaz:
http://arxiv.org/abs/1709.09084
Autor:
Kumar, Sanjeev, Gautam, Radha Raman
Publikováno v:
Phys. Rev. D 96, 015020 (2017)
We study the phenomenological implications of the presence of two texture zeros in the neutrino mass matrix assuming that the neutrino mixing matrix has its first column identical to that of the tribimaximal mixing matrix. Only two patterns of this k
Externí odkaz:
http://arxiv.org/abs/1706.03258
Akademický článek
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Autor:
Gautam, Radha Raman, Kumar, Sanjeev
Publikováno v:
Phys. Rev. D 94, 036004 (2016)
We study the phenomenological implications of the presence of two zeros in a magic neutrino mass matrix. We find that only two such patterns of the neutrino mass matrix are experimentally acceptable. We express all the neutrino observables as functio
Externí odkaz:
http://arxiv.org/abs/1607.08328
Publikováno v:
Nucl.Phys.B 911 (2016) 744-753
We explore the possibility of generating a non-zero $U_{e3}$ element of the neutrino mixing matrix from tribimaximal neutrino mixing by adding a light sterile neutrino to the active neutrinos. Small active-sterile mixing can provide the necessary dev
Externí odkaz:
http://arxiv.org/abs/1607.08051
Assuming Majorana nature of neutrinos, we investigate the singular one texture zero neutrino mass matrices in the flavor basis. We find that for the normal mass ordering with $m_1=0$, all the six one texture zero classes are now ruled out at 3$\sigma
Externí odkaz:
http://arxiv.org/abs/1506.04868