The Role and Detectability of the Charm Contribution to Ultra High Energy Neutrino Fluxes

Abstract

It is widely believed that charm meson production and decay may play an important role in high energy astrophysical sources of neutrinos, especially those that are baryon-rich, providing an environment conducive to pp interactions. Using slow-jet supernovae (SJS) as an example of such a source, we study the detectability of high-energy neutrinos, paying particular attention to those produced from charmed-mesons. We highlight important distinguishing features in the ultra-high energy neutrino flux which would act as markers for the role of charm in the source. In particular, charm leads to significant event rates at higher energies, after the conventional (pi, K) neutrino fluxes fall off. We calculate event rates both for a nearby single source and for diffuse SJS fluxes for an IceCube-like detector. By comparing muon event rates for the conventional and prompt fluxes in different energy bins, we demonstrate the striking energy dependence in the rates induced by the presence of charm. We also show that it leads to an energy dependant flux ratio of shower to muon events, providing an additional important diagnostic tool for the presence of prompt neutrinos. Motivated by the infusion of high energy anti-electron neutrinos into the flux by charm decay, we also study the detectability of the Glashow resonance due to these sources.

arXiv comment13 pages, 5 figures; (ver. 2) accepted in JCAP

References in corpus (29)

• A very energetic supernova associated with the gamma-ray burst of 29 March 2003
• Spectroscopic Discovery of the Supernova 2003dh Associated with GRB 030329
• High Energy Neutrinos from Astrophysical Sources: An Upper Bound
• Status of global fits to neutrino oscillations
• Ultrahigh-Energy Neutrino Interactions
• Neutrino Interactions at Ultrahigh Energies
• Sensitivity of the IceCube Detector to Astrophysical Sources of High Energy Muon Neutrinos
• Prompt neutrino fluxes from atmospheric charm
• Measuring Flavor Ratios of High-Energy Astrophysical Neutrinos
• Decay of High-Energy Astrophysical Neutrinos
• Flavor Composition and Energy Spectrum of Astrophysical Neutrinos
• Effects of neutrino mixing on high-energy cosmic neutrino flux
• Charm Production and High Energy Atmospheric Muon and Neutrino Fluxes
• Revealing the Supernova--Gamma-Ray Burst Connection with TeV Neutrinos
• Pseudo-Dirac Neutrinos, a Challenge for Neutrino Telescopes
• KM3NeT: Towards a km3 Mediterranean Neutrino Telescope
• TeV neutrinos from core collapse supernovae and hypernovae
• Neutrino Observatories Can Characterize Cosmic Sources and Neutrino Properties
• Flavor Ratios of Astrophysical Neutrinos: Implications for Precision Measurements
• Observation of High Energy Atmospheric Neutrinos with the Antarctic Muon and Neutrino Detector Array
• Effects of sterile neutrinos on the ultrahigh-energy cosmic neutrino flux
• High energy neutrino yields from astrophysical sources I: Weakly magnetized sources
• High energy neutrino yields from astrophysical sources II: Magnetized sources
• High energy neutrinos from a slow jet model of core collapse supernovae
• High energy neutrinos from charm in astrophysical sources
• The Highest Energy Neutrinos
• Enhanced high-energy neutrino emission from choked gamma-ray bursts due to meson and muon acceleration
• Probing New Physics with Astrophysical Neutrinos
• Neutrino properties from high energy astrophysical neutrinos

Cited by in corpus (3)

• Flavor Composition of UHE Neutrinos at Source and at Neutrino Telescopes
• Charm decay in slow-jet supernovae as the origin of the IceCube ultra-high energy neutrino events
• Effects of Annihilation with Low-Energy Neutrinos on High-Energy Neutrinos from Binary Neutron Star Mergers and Rare Core-Collapse Supernovae