Tau energy loss and ultrahigh energy skimming tau neutrinos
Journal Article
·
· Physical Review D
- National Inst. of Supercomputing and Networking (KISTI), Daejeon (Korea, Republic of); Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics; Arizona State University
- Univ. of Iowa, Iowa City, IA (United States). Dept. of Physics and Astronomy
- Univ. of Arizona, Tucson, AZ (United States). Dept. of Physics and Astronomy
For this paper, we consider propagation of high-energy earth-skimming taus produced in interactions of astrophysical tau neutrinos. For astrophysical tau neutrinos, we take generic power-law flux, E-2 and the cosmogenic flux initiated by the protons. We calculate tau energy loss in several approaches, such as dipole models and the phenomenological approach in which parametrization of the F2 is used. We evaluate the tau neutrino charged-current cross section using the same approaches for consistency. We find that uncertainty in the neutrino cross section and in the tau energy loss partially compensate giving very small theoretical uncertainty in the emerging tau flux for distances ranging from 2 to 100 km and for the energy range between 106 and 1011 GeV , focusing on energies above 108 GeV . When we consider uncertainties in the neutrino cross section, inelasticity in neutrino interactions and the tau energy loss, which are not correlated, i.e. they are not all calculated in the same approach, theoretical uncertainty ranges from about 30% and 60% at 108 GeV to about factors of 3.3 and 3.8 at 1011 GeV for the E-2 flux and the cosmogenic flux, respectively, for the distance of 10 km rock. The spread in predictions significantly increases for much larger distances, e.g., ~ 1,000 km . Most of the uncertainty comes from the treatment of photonuclear interactions of the tau in transit through large distances. We also consider Monte Carlo calculation of the tau propagation and we find that the result for the emerging tau flux is in agreement with the result obtained using analytic approach. Our results are relevant to several experiments that are looking for skimming astrophysical taus, such as the Pierre Auger Observatory, HAWC and Ashra. We evaluate the aperture for the Auger and discuss briefly application to the other two experiments.
- Research Organization:
- Univ. of Arizona, Tucson, AZ (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Grant/Contract Number:
- SC0009913; SC0010113
- OSTI ID:
- 1423946
- Alternate ID(s):
- OSTI ID: 1374214
- Journal Information:
- Physical Review D, Journal Name: Physical Review D Journal Issue: 4 Vol. 96; ISSN PRVDAQ; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cosmic tau neutrino detection via Cherenkov signals from air showers from Earth-emerging taus
|
journal | September 2019 |
Comprehensive approach to tau-lepton production by high-energy tau neutrinos propagating through the Earth
|
journal | January 2018 |
R -parity violating supersymmetric explanation of the anomalous events at ANITA
|
journal | February 2019 |
Similar Records
Charged current neutrino cross section and tau energy loss at ultrahigh energies
Ultrahigh energy tau neutrino flux regeneration while skimming the Earth
Tau neutrino astronomy in GeV energies
Journal Article
·
Mon Dec 31 23:00:00 EST 2007
· Physical Review. D, Particles Fields
·
OSTI ID:21035675
Ultrahigh energy tau neutrino flux regeneration while skimming the Earth
Journal Article
·
Mon Sep 15 00:00:00 EDT 2008
· Physical Review. D, Particles Fields
·
OSTI ID:21250796
Tau neutrino astronomy in GeV energies
Journal Article
·
Sun May 15 00:00:00 EDT 2005
· Physical Review. D, Particles Fields
·
OSTI ID:20709238