Probing dark matter models with neutrinos from the Galactic center

Arif Emre Erkoca, Mary Hall Reno, Ina Sarcevic

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We calculate the contained and upward muon and shower fluxes due to neutrinos produced via dark matter annihilation or decay in the Galactic center. We consider dark matter models in which the dark matter particle is a gravitino, a Kaluza-Klein particle and a particle in leptophilic models. The Navarro-Frenk-White profile for the dark matter density distribution in the Galaxy is used. We incorporate neutrino oscillations by assuming maximal mixing and parametrize our results for muon and shower distributions. The muon and shower event rates and the minimum observation times in order to reach 2σ detection significance are evaluated. We illustrate how observation times vary with the cone half angle chosen about the Galactic center, with the result that the optimum angles are about 10° and 50° for the muon events and shower events, respectively. We find that for the annihilating dark matter models such as the leptophilic and Kaluza-Klein models, upward and contained muon as well as showers are promising signals for dark matter detection in just a few years of observation, whereas for decaying dark matter models, the same observation times can only be reached with showers. We also illustrate for each model the parameter space probed with the 2σ signal detection in five years. We discuss how the shape of the parameter space probed change with significance and the observation time.

Original languageEnglish (US)
Article number113006
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume82
Issue number11
DOIs
StatePublished - Dec 6 2010

Fingerprint

showers
dark matter
neutrinos
muons
half cones
gravitinos
signal detection
density distribution
galaxies
oscillations
decay
profiles

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Probing dark matter models with neutrinos from the Galactic center. / Erkoca, Arif Emre; Reno, Mary Hall; Sarcevic, Ina.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 82, No. 11, 113006, 06.12.2010.

Research output: Contribution to journalArticle

@article{4b255ea3d7b1463ca1dcf7e06fc7bbb9,
title = "Probing dark matter models with neutrinos from the Galactic center",
abstract = "We calculate the contained and upward muon and shower fluxes due to neutrinos produced via dark matter annihilation or decay in the Galactic center. We consider dark matter models in which the dark matter particle is a gravitino, a Kaluza-Klein particle and a particle in leptophilic models. The Navarro-Frenk-White profile for the dark matter density distribution in the Galaxy is used. We incorporate neutrino oscillations by assuming maximal mixing and parametrize our results for muon and shower distributions. The muon and shower event rates and the minimum observation times in order to reach 2σ detection significance are evaluated. We illustrate how observation times vary with the cone half angle chosen about the Galactic center, with the result that the optimum angles are about 10° and 50° for the muon events and shower events, respectively. We find that for the annihilating dark matter models such as the leptophilic and Kaluza-Klein models, upward and contained muon as well as showers are promising signals for dark matter detection in just a few years of observation, whereas for decaying dark matter models, the same observation times can only be reached with showers. We also illustrate for each model the parameter space probed with the 2σ signal detection in five years. We discuss how the shape of the parameter space probed change with significance and the observation time.",
author = "Erkoca, {Arif Emre} and Reno, {Mary Hall} and Ina Sarcevic",
year = "2010",
month = "12",
day = "6",
doi = "10.1103/PhysRevD.82.113006",
language = "English (US)",
volume = "82",
journal = "Physical review D: Particles and fields",
issn = "0556-2821",
publisher = "American Institute of Physics",
number = "11",

}

TY - JOUR

T1 - Probing dark matter models with neutrinos from the Galactic center

AU - Erkoca, Arif Emre

AU - Reno, Mary Hall

AU - Sarcevic, Ina

PY - 2010/12/6

Y1 - 2010/12/6

N2 - We calculate the contained and upward muon and shower fluxes due to neutrinos produced via dark matter annihilation or decay in the Galactic center. We consider dark matter models in which the dark matter particle is a gravitino, a Kaluza-Klein particle and a particle in leptophilic models. The Navarro-Frenk-White profile for the dark matter density distribution in the Galaxy is used. We incorporate neutrino oscillations by assuming maximal mixing and parametrize our results for muon and shower distributions. The muon and shower event rates and the minimum observation times in order to reach 2σ detection significance are evaluated. We illustrate how observation times vary with the cone half angle chosen about the Galactic center, with the result that the optimum angles are about 10° and 50° for the muon events and shower events, respectively. We find that for the annihilating dark matter models such as the leptophilic and Kaluza-Klein models, upward and contained muon as well as showers are promising signals for dark matter detection in just a few years of observation, whereas for decaying dark matter models, the same observation times can only be reached with showers. We also illustrate for each model the parameter space probed with the 2σ signal detection in five years. We discuss how the shape of the parameter space probed change with significance and the observation time.

AB - We calculate the contained and upward muon and shower fluxes due to neutrinos produced via dark matter annihilation or decay in the Galactic center. We consider dark matter models in which the dark matter particle is a gravitino, a Kaluza-Klein particle and a particle in leptophilic models. The Navarro-Frenk-White profile for the dark matter density distribution in the Galaxy is used. We incorporate neutrino oscillations by assuming maximal mixing and parametrize our results for muon and shower distributions. The muon and shower event rates and the minimum observation times in order to reach 2σ detection significance are evaluated. We illustrate how observation times vary with the cone half angle chosen about the Galactic center, with the result that the optimum angles are about 10° and 50° for the muon events and shower events, respectively. We find that for the annihilating dark matter models such as the leptophilic and Kaluza-Klein models, upward and contained muon as well as showers are promising signals for dark matter detection in just a few years of observation, whereas for decaying dark matter models, the same observation times can only be reached with showers. We also illustrate for each model the parameter space probed with the 2σ signal detection in five years. We discuss how the shape of the parameter space probed change with significance and the observation time.

UR - http://www.scopus.com/inward/record.url?scp=78651314097&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78651314097&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.82.113006

DO - 10.1103/PhysRevD.82.113006

M3 - Article

AN - SCOPUS:78651314097

VL - 82

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 11

M1 - 113006

ER -