skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Gravi-Burst: Super-GZK Cosmic Rays from Localized Gravity

Abstract

The flux of cosmic rays beyond the GZK cutoff ({approx} 10{sup 20} eV) may be explained through their production by ultra high energy cosmic neutrinos, annihilating on the relic neutrino background, in the vicinity of our galaxy. This process is mediated through the production of a Z boson at resonance, and is generally known as the Z-Burst mechanism. We show that a similar mechanism can also contribute to the super-GZK spectrum at even higher, ultra-GZK energies, where the particles produced at resonance are the Kaluza-Klein gravitons of weak scale mass and coupling from the Randall-Sundrum (RS) hierarchy model of localized gravity model. We call this mechanism Gravi-Burst. We discuss the parameter space of relevance to Gravi-Bursts, and comment on the possibility of its contribution to the present and future super-GZK cosmic ray data and place bounds on the RS model parameters. Under certain assumptions about the energy spectrum of the primary neutrinos we find that cosmic ray data could be potentially as powerful as the LHC in probing the RS model.

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, Menlo Park, CA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
784723
Report Number(s):
SLAC-PUB-8636
TRN: US0108544
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 9 Oct 2000
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BOSONS; COSMIC NEUTRINOS; GRAVITONS; PARTICLE PRODUCTION; RESONANCE; COSMIC RAY DETECTION; COSMIC RAY FLUX

Citation Formats

Davoudiasl, Hooman. Gravi-Burst: Super-GZK Cosmic Rays from Localized Gravity. United States: N. p., 2000. Web. doi:10.2172/784723.
Davoudiasl, Hooman. Gravi-Burst: Super-GZK Cosmic Rays from Localized Gravity. United States. doi:10.2172/784723.
Davoudiasl, Hooman. Mon . "Gravi-Burst: Super-GZK Cosmic Rays from Localized Gravity". United States. doi:10.2172/784723. https://www.osti.gov/servlets/purl/784723.
@article{osti_784723,
title = {Gravi-Burst: Super-GZK Cosmic Rays from Localized Gravity},
author = {Davoudiasl, Hooman},
abstractNote = {The flux of cosmic rays beyond the GZK cutoff ({approx} 10{sup 20} eV) may be explained through their production by ultra high energy cosmic neutrinos, annihilating on the relic neutrino background, in the vicinity of our galaxy. This process is mediated through the production of a Z boson at resonance, and is generally known as the Z-Burst mechanism. We show that a similar mechanism can also contribute to the super-GZK spectrum at even higher, ultra-GZK energies, where the particles produced at resonance are the Kaluza-Klein gravitons of weak scale mass and coupling from the Randall-Sundrum (RS) hierarchy model of localized gravity model. We call this mechanism Gravi-Burst. We discuss the parameter space of relevance to Gravi-Bursts, and comment on the possibility of its contribution to the present and future super-GZK cosmic ray data and place bounds on the RS model parameters. Under certain assumptions about the energy spectrum of the primary neutrinos we find that cosmic ray data could be potentially as powerful as the LHC in probing the RS model.},
doi = {10.2172/784723},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Oct 09 00:00:00 EDT 2000},
month = {Mon Oct 09 00:00:00 EDT 2000}
}

Technical Report:

Save / Share: