WHAT DO WE MEAN BY DETECTING EARTH-SKIMMING NEUTRINOS?

In this talk, we elaborate the strategy for detecting the Earth-skimming tau neutrinos. We first show that there are non-negligible astrophysical tau neutrino fluxes due to neutrino flavor oscillations. We then illustrate the idea of detecting Earth-skimming tau neutrinos. In particular, we point out that the tau-lepton flux resulting from neutrino-nucleon scatterings inside the earth is controlled by the tau-lepton range. We demonstrate this observation by showing the tau-lepton flux induced by the GZK tau-neutrino flux. The question on the energy resolutions of tau neutrinos in this detection strategy is briefly discussed.

Download Full-text

ULTRAHIGH ENERGY TAU NEUTRINOS

International Journal of Modern Physics A ◽

10.1142/s0217751x0502834x ◽

2005 ◽

Vol 20 (19) ◽

pp. 4656-4663 ◽

Cited By ~ 1

Author(s):

J. JONES ◽

I. MOCIOIU ◽

I. SARCEVIC ◽

M. H. RENO

Keyword(s):

Energy Loss ◽

Active Galactic Nuclei ◽

Galactic Nuclei ◽

The Other ◽

Ultrahigh Energy ◽

Tau Neutrino ◽

Tau Neutrinos ◽

The Earth ◽

Astrophysical Neutrinos ◽

Neutrino Fluxes

We study ultrahigh energy astrophysical neutrinos and the contribution of tau neutrinos from neutrino oscillations, relative to the contribution of the other flavors. We show the effect of tau neutrino regeneration and tau energy loss as they propagate through the Earth. We consider a variety of neutrino fluxes, such as cosmogenic neutrinos and neutrinos that originate in Active Galactic Nuclei. We discuss signals of tau neutrinos in detectors such as IceCube, RICE and ANITA.

Download Full-text

ATMOSPHERIC AND GALACTIC TAU NEUTRINOS

Modern Physics Letters A ◽

10.1142/s0217732304014525 ◽

2004 ◽

Vol 19 (13n16) ◽

pp. 1171-1178 ◽

Cited By ~ 2

Author(s):

H. ATHAR

Keyword(s):

Lower Energy ◽

Neutrino Oscillations ◽

Galactic Plane ◽

Neutrino Flux ◽

Earth Atmosphere ◽

Future Prospects ◽

Energy Value ◽

Tau Neutrino ◽

Tau Neutrinos ◽

The Earth

Neutrinos with energy greater than GeV are copiously produced in the p(A,p) interactions occurring in the earth atmosphere and in our galactic plane. A comparison of the tau and mu neutrino flux in the presence of neutrino oscillations from these two astrophysical sites is presented. It is pointed out that the galactic plane tau neutrino flux dominates over the downward going atmospheric tau neutrino flux at much lower energy value than that for the dominance of the mu neutrino flux from these two sites. Future prospects for possible observations of galactic tau neutrino flux are also briefly mentioned.

Download Full-text

TRACING VERY HIGH ENERGY TAU NEUTRINOS FROM COSMOLOGICAL SOURCES IN ICE

International Journal of Modern Physics A ◽

10.1142/s0217751x05024092 ◽

2005 ◽

Vol 20 (06) ◽

pp. 1204-1211 ◽

Cited By ~ 3

Author(s):

J. JONES ◽

I. MOCIOIU ◽

I. SARCEVIC ◽

M. H. RENO

Keyword(s):

High Energy ◽

Ultrahigh Energy ◽

Tau Neutrino ◽

Tau Neutrinos ◽

The Earth ◽

Very High Energy ◽

Charged Leptons ◽

Neutrino Fluxes ◽

In Transit ◽

Very High

Astrophysical sources of ultrahigh energy neutrinos yield tau neutrino fluxes due to neutrino oscillations. We study in detail the contribution of tau neutrinos with energies above 106 GeV relative to the contribution of the other flavors. We consider several different initial neutrino fluxes and include tau neutrino regeneration in transit through the Earth and energy loss of charged leptons. We discuss signals of tau neutrinos in detectors such as IceCube, RICE and ANITA.

Download Full-text

HENRI EFFECT: REGISTRATION PARAMETERS

Metaphysics ◽

10.22363/2224-7580-2020-4-67-71 ◽

2020 ◽

pp. 67-71

Author(s):

O. B Khavroshkin ◽

V. V Tsyplakov

Keyword(s):

Heat Flow ◽

Neutrino Flux ◽

Solar Neutrinos ◽

Mechanical Effect ◽

Solar Flux ◽

The Earth ◽

Neutrino Fluxes

The detected anomalous neutrino radioisotope (ANRI) absorption or effect allows one to study the variety of interactions of neutrino fluxes with radioactive matter and its consequences. Thus, results were obtained on solar neutrinos v , seismicity and heat flow of the Earth. The study of the features of the mechanical manifestation of the neutrino flux as a mechanical effect of the solar flux v in space on the Pioneer-type spacecraft is promising for many reasons.

Download Full-text

Comprehensive approach to tau-lepton production by high-energy tau neutrinos propagating through the Earth

Physical Review D ◽

10.1103/physrevd.97.023021 ◽

2018 ◽

Vol 97 (2) ◽

Cited By ~ 29

Author(s):

Jaime Alvarez-Muñiz ◽

Washington R. Carvalho ◽

Kévin Payet ◽

Andrés Romero-Wolf ◽

Harm Schoorlemmer ◽

...

Keyword(s):

High Energy ◽

Tau Lepton ◽

Comprehensive Approach ◽

Lepton Production ◽

Tau Neutrinos ◽

The Earth

Download Full-text

The DsTau Experiment: A Study for Tau-Neutrino Production

Particles ◽

10.3390/particles3010013 ◽

2020 ◽

Vol 3 (1) ◽

pp. 164-168

Author(s):

Mădălina Mihaela Miloi ◽

Keyword(s):

Cross Section ◽

Present Report ◽

Neutrino Flux ◽

Interaction Cross Section ◽

Muon Neutrinos ◽

Tau Neutrino ◽

Neutrino Sector ◽

Neutrino Production ◽

Lepton Universality ◽

Tau Neutrinos

For clarifying the validity of the Lepton Universality hypothesis, one of the fundamental statements of the Standard Model, the interaction cross section for all three flavors of leptons have to be known with high precision. In neutrino sector, for electron and muon neutrinos, the interaction cross section is known fairly well, but for tau neutrino only poor estimations exist. In particular, the most direct measurement by the DONuT experiment was performed with rather poor accuracy due to low statistics and an uncertainty of the tau neutrino flux. The DsTau experiment proposes to study tau-neutrino production process and thus to improve significantly the accuracy of calculations of tau neutrino flux for neutrino accelerator experiments. To study reactions providing most of tau neutrinos, the experiment uses a setup based on high resolution nuclear emulsions, capable to register short lived particle decays created in proton-nucleus interactions. The present report is an overview of the DsTau experiment together with some of the preliminary results from the pilot run.

Download Full-text

Search for tau neutrinos with the MAGIC telescopes: improving selection criteria*

EPJ Web of Conferences ◽

10.1051/epjconf/201920901005 ◽

2019 ◽

Vol 209 ◽

pp. 01005

Author(s):

Marina Manganaro ◽

Leonora Kardum ◽

Elisa Bernardini ◽

Michele Doro ◽

Dariusz Gora ◽

...

Keyword(s):

Point Source ◽

Effective Area ◽

Air Showers ◽

Telescope Array ◽

Cherenkov Telescopes ◽

Tau Neutrino ◽

La Palma ◽

Tau Neutrinos ◽

Neutrino Fluxes ◽

Event Rates

MAGIC, a system of two Cherenkov telescopes located at the Roque de los Muchachos Observatory (2200 a.s.l.) in the Canary Island of La Palma, has lately been engaged in an unconventional task: the search for a signature of particle showers induced by earth-skimming cosmic tau neutrinos arising from the ocean, in the PeV to EeV energy range. When pointing at the sea, the MAGIC telescopes can collect data in a range of about 5 deg in zenith and 80 deg in azimuth: the analysis of the shower images from ~30 hours of data, together with the simulations of upward-going tau neutrino showers, shows that the air showers induced by tau neutrinos can be discriminated from the hadronic background coming from a similar direction. We have calculated the point source acceptance and the expected event rates, assuming an incoming v flux consistent with IceCube measurements, and for a sample of generic neutrino fluxes from photohadronic interactions in AGNs and GRBs. A 90% C.L. upper limit on the tau-neutrino point source flux of 2.0 × 10–4 GeV cm–2 s–1 has been obtained. The presented results can also be important for future Cherenkov experiments such as the Cherenkov Telescope Array. This next generation ground-based observatory can have a much better possibility to detect v, given its larger FOV and much larger effective area.

Download Full-text

A New Concept for High-Elevation Radio Detection of Tau Neutrinos

EPJ Web of Conferences ◽

10.1051/epjconf/201921604007 ◽

2019 ◽

Vol 216 ◽

pp. 04007 ◽

Cited By ~ 1

Author(s):

Stephanie Wissel ◽

Jaime Alvarez-Muñiz ◽

Washington R. Carvalho ◽

Andrés Romero-Wolf ◽

Harm Schoorlemmer ◽

...

Keyword(s):

Antenna Arrays ◽

High Elevation ◽

Tau Lepton ◽

Tau Neutrino ◽

Phased Antenna Arrays ◽

Tau Neutrinos ◽

Astrophysical Neutrinos ◽

Flavor Mixing ◽

Lepton Decay ◽

Significant Flux

Cosmic neutrinos are expected to include a significant flux of tau neutrinos due to flavor mixing over astronomical length scales. However, the tau-neutrino content of astrophysical neutrinos is poorly constrained and a significant flux of cosmogenic tau neutrinos awaits discovery. Earth-skimming tau neutrinos undergo charged-current interactions that result in a tau lepton exiting the Earth. The tau lepton decay generates anextensive air shower and geomagnetic radio emission. To target the tau neutrinos, we present a new tau neutrino detector concept that uses phased antenna arrays placed on high elevation mountains. Simulation studies indicate that a modest array size and small number of stations can achieve competitive sensitivity, provided the receivers are at highs enough elevation.

Download Full-text