Sterile neutrinos
Spinor-vector duality and sterile neutrinos in string derived models
... of sterile neutrinos [1]. Evidence for sterile neutrinos was reported by the LSND collaboration in 1993 ...While sterile neutrinos may be naturally accommodated in large volume ...
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Search for sterile neutrinos in MINOS and MINOS+ using a two detector fit
... which only two are independent. However, some exper- imental results are in tension with the three-flavor para- digm: anomalous appearance of ν ¯ e in short-baseline ν ¯ μ beams at LSND [11] and MiniBooNE [12]; depletion ...
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Short review on solar neutrinos experiments and search for sterile neutrinos with solar neutrino detectors
... solar neutrinos can be used to probe possible limitations of the Standard Solar Model, such as, in particular, the uncertainties in the metal content (metallicity problem), and the effect of rotation, mixing, or ...
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Sterile neutrinos: some or all of dark matter?
... Sterile neutrinos are chargeless spin- 1 2 fermions, just like the active neutri- ...that sterile neutrinos don’t couple to the W ± bosons, while the active neutrinos do: this is why ...
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Constraints on sterile neutrinos lifetime from primordial nucleosynthesis
... There exist successful approaches to automation of this task like Feyn- Calc (also including the generation of all possible reactions from the given Lagrangian), but they cover only the Standard Model by default and re- ...
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Totzauer, Maximilian (2017): Sterile neutrinos from Singlet Scalar Decays: a realistic non-thermal dark matter candidate. Dissertation, LMU München: Fakultät für Physik
... that sterile neutrinos would never attain equilibrium in the early universe and that only a freeze-in type mechanism could potentially pro- duce the observed relic dark matter abundance in the form of ...
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Search for light sterile neutrinos with the STEREO experiment
... of sterile neutrinos at the eV mass ...anti- neutrinos produced in the core of the reactor are detected in the segmented STEREO detector using the Inverse Beta Decay (IBD) ...
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Searches for sterile neutrinos at the DANSS experiment
... IBD rate coincides with the reactor power with about 2% accuracy during 16 months. The only exception is the one month period after the latest beginning of the campaign for which we do not have reliable data on the ...
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Search for light sterile neutrinos with the T2K far detector Super-Kamiokande at a baseline of 295 km
... The main ring accelerator in the Japan Proton Accelerator Research Complex (J-PARC) produces a 30 GeV proton beam with spills every 2.48 s that contain eight beam bunches which are 580 ns apart. The proton beam is ...
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Search for light sterile neutrinos with the T2K far detector Super Kamiokande at a baseline of 295 km
... The overall analysis method is similar to that used in the standard T2K three flavor analysis [47], including the incorporation of off-axis near detector data and treat- ment of systematic uncertainties. However, this ...
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A Search for Sterile Neutrinos at the NOνA Far Detector
... BUNPTQIFSJD TDBMFT JU JT TUJMM NVDI TNBMMFS UIBO UIF NBTT PG UIF ; 5IF ୮ୢSTU FWJEFODF GPS BO BEEJUJPOBM OFVUSJOP DBNF GSPN UIF -JRVJE 4DJOUJMMBUPS /FVUSJOP %FUFDUPS PS -4/% JO 1995 5IJT [r] ...
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Sterile neutrino dark matter
... the sterile neutrinos are embedded into a more fundamental theory of ...and sterile neutrino dispersion relations in the primordial plasma known as Mikheyev-Smirnov-Wolfenstein (MSW) effect, ...
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Planetary Heating by Neutrinos: Long Term Habitats for Aquatic Life if Dark Energy Decays Favourably
... more sterile neutrino species with a mass at the eV-scale ...eV-scale sterile neutrinos with only minor revisions ...active neutrinos would defy current cos- mological ...that sterile ...
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IceCube Sterile Neutrino Searches
... Abstract. Anomalies in short baseline experiments have been interpreted as evidence for additional neutrino mass states with large mass splittings from the known, active flavors. This explanation mandates a corresponding ...
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Study of oscillations with accelerator and reactor neutrinos
... of sterile neutrinos which could mix with active neutrinos and therefore could modify the 3 × 3 mixing ...active neutrinos: 1) a ¯ ν e excess in a ¯ ν µ beam observed by the LSND ...
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Experimental bounds on sterile neutrino mixing angles
... Figure 2: The lower bounds on the lifetime of sterile neutrinos, responsible for the mixings between active neutrinos of different flavours in the see-saw models (4). The bounds are based on the ...
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Viable production mechanism of keV sterile neutrino with large mixing angle
... massless sterile neutrino acquires a nonzero mass at some temperature corresponding to the phase transition in the hidden ...of sterile neutrinos is strongly ...
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The Sterile Neutrino: A short introduction
... (ii) Since the 4 × 4 matrix in eq. (14) is unitary, its 3 × 3 sub-block V, which is the PMNS matrix, must be non-unitary unless K and U non-diagonal sub-blocks are identically zero. In the latter case, the oscillation to ...
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The next challenge for neutrinos: the mass ordering
... the scenario. It is mandatory to explore new ways in statistical analysis, also motivated by the too simple methods applied so far, all based on the minimization of the χ 2 . The new method introduced in [22] is quite ...
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Multi-messenger aspects of cosmic neutrinos
... of neutrinos would be expected to correlate with the local population of UHE CRs which can be sampled by the observed UHE CR arrival direction: The Hubble horizon at about ...
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