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Электронный каталог: Goswami, S. - Neutrino Mass Variables in Three Active and Two Sterile Neutrino Scenario
Goswami, S. - Neutrino Mass Variables in Three Active and Two Sterile Neutrino Scenario
Статья
Автор: Goswami, S.
Physical Review D: Neutrino Mass Variables in Three Active and Two Sterile Neutrino Scenario
б.г.
ISBN отсутствует
Автор: Goswami, S.
Physical Review D: Neutrino Mass Variables in Three Active and Two Sterile Neutrino Scenario
б.г.
ISBN отсутствует
На полку
Статья
Goswami, S.
Neutrino Mass Variables in Three Active and Two Sterile Neutrino Scenario / S.Goswami, N.Rajeev, [a.o.]. – Text : electronic // Physical Review D. – 2026. – Vol. 113, No. 11. – P. 115050. – URL: https://doi.org/10.1103/3lb9-29zh. – Bibliogr.: 83.
The three-flavor framework of neutrino oscillations successfully explains most experimental results, but persistent anomalies at short- and long-baseline experiments hint at the existence of additional light sterile states. In particular, eV-scale sterile neutrinos are motivated by LSND and MiniBooNE results, while sub-eV sterile states with mass-squared differences at the 10*−*2 and 10*−*5 eV*2 scales have been proposed to address the T2K–NOνA tension and the absence of the expected upturn in the solar neutrino energy spectrum, respectively. Such sterile states are singlets under the Standard Model gauge group and mix only through their admixture with active neutrinos. In this work, we investigate the phenomenology of the 3+ 2 scenario, incorporating one eV-scale sterile neutrino together with a sub-eV state, and analyze their impact on absolutemass related observables; the sum of neutrino masses Σ constrained by cosmology, the effective electron neutrino mass m&sub(β) from β decay, and the effective Majorana mass m&sub(ββ) probed in neutrinoless double β decay. We demonstrate that the presence of two sterile states can significantly modify the allowed parameter space compared to the three-flavor and 3 þ 1 frameworks, with some mass-ordering schemes already disfavored by current cosmological and laboratory limits. Finally, we assess the implications of upcoming sensitivities from KATRIN, Project 8, and LEGEND-1000, highlighting the complementary role of sub-eV sterile neutrinos in probing physics beyond the minimal three-flavor paradigm
ОИЯИ = ОИЯИ (JINR)2026
Goswami, S.
Neutrino Mass Variables in Three Active and Two Sterile Neutrino Scenario / S.Goswami, N.Rajeev, [a.o.]. – Text : electronic // Physical Review D. – 2026. – Vol. 113, No. 11. – P. 115050. – URL: https://doi.org/10.1103/3lb9-29zh. – Bibliogr.: 83.
The three-flavor framework of neutrino oscillations successfully explains most experimental results, but persistent anomalies at short- and long-baseline experiments hint at the existence of additional light sterile states. In particular, eV-scale sterile neutrinos are motivated by LSND and MiniBooNE results, while sub-eV sterile states with mass-squared differences at the 10*−*2 and 10*−*5 eV*2 scales have been proposed to address the T2K–NOνA tension and the absence of the expected upturn in the solar neutrino energy spectrum, respectively. Such sterile states are singlets under the Standard Model gauge group and mix only through their admixture with active neutrinos. In this work, we investigate the phenomenology of the 3+ 2 scenario, incorporating one eV-scale sterile neutrino together with a sub-eV state, and analyze their impact on absolutemass related observables; the sum of neutrino masses Σ constrained by cosmology, the effective electron neutrino mass m&sub(β) from β decay, and the effective Majorana mass m&sub(ββ) probed in neutrinoless double β decay. We demonstrate that the presence of two sterile states can significantly modify the allowed parameter space compared to the three-flavor and 3 þ 1 frameworks, with some mass-ordering schemes already disfavored by current cosmological and laboratory limits. Finally, we assess the implications of upcoming sensitivities from KATRIN, Project 8, and LEGEND-1000, highlighting the complementary role of sub-eV sterile neutrinos in probing physics beyond the minimal three-flavor paradigm
ОИЯИ = ОИЯИ (JINR)2026
