Journal article
Dark Matter Constraints from a Joint Analysis of Dwarf Spheroidal Galaxy Observations with VERITAS
Physical review. D, Vol.95(8), 082001
03/15/2017
DOI: 10.1103/PhysRevD.95.082001
Abstract
We present constraints on the annihilation cross section of weakly interacting massive particles dark matter based on the joint statistical analysis of four dwarf galaxies with VERITAS. These results are derived from an optimized photon weighting statistical technique that improves on standard imaging atmospheric Cherenkov telescope (IACT) analyses by utilizing the spectral and spatial properties of individual photon events. We report on the results of ∼230 hours of observations of five dwarf galaxies and the joint statistical analysis of four of the dwarf galaxies. We find no evidence of gamma-ray emission from any individual dwarf nor in the joint analysis. The derived upper limit on the dark matter annihilation cross section from the joint analysis is 1.35 × 10−23 cm3 s−1 at 1 TeV for the bottom quark (bb¯) final state, 2.85 × 10−24 cm3 s−1 at 1 TeV for the tau lepton (τþτ−) final state and 1.32 × 10−25 cm3 s−1 at 1 TeV for the gauge boson (γγ) final state
Details
- Title: Subtitle
- Dark Matter Constraints from a Joint Analysis of Dwarf Spheroidal Galaxy Observations with VERITAS
- Creators
- S Archambault - McGill UniversityA Archer - Washington University in St. LouisW Benbow - Harvard UniversityR Bird - University of California, Los AngelesE Bourbeau - McGill UniversityT Brantseg - Iowa State UniversityM Buchovecky - University of California, Los AngelesJ. H Buckley - Washington University in St. LouisV Bugaev - Washington University in St. LouisK Byrum - Argonne National LaboratoryM Cerruti - Harvard UniversityJ. L Christiansen - California Polytechnic State UniversityM. P Connolly - Ollscoil na Gaillimhe – University of GalwayW Cui - Purdue University West LafayetteM. K Daniel - Harvard UniversityQ Feng - McGill UniversityJ. P Finley - Purdue University West LafayetteH Fleischhack - DESY, Zeuthen, GermanyL Fortson - University of MinnesotaA Furniss - California State University, East BayA Geringer-Sameth - Brown UniversityS Griffin - McGill UniversityJ Grube - Stevens Institute of TechnologyM Hütten - DESY, Zeuthen, GermanyN Håkansson - University of PotsdamD Hanna - McGill UniversityO Hervet - University of California, Santa CruzJ Holder - University of DelawareG Hughes - Harvard UniversityC. A Johnson - University of California, Santa CruzP Kaaret - University of IowaP Kar - University of UtahN Kelley-Hoskins - DESY, Zeuthen, GermanyM Kertzman - DePauw UniversityD Kieda - University of UtahS Koushiappas - Brown UniversityM Krause - DESY, Zeuthen, GermanyS Kumar - University of DelawareM. J Lang - Ollscoil na Gaillimhe – University of GalwayT. T. Y Lin - McGill UniversityS McArthur - Purdue University West LafayetteP Moriarty - Ollscoil na Gaillimhe – University of GalwayD Nieto - Columbia UniversityS O'Brien - University College DublinR. A Ong - University of California, Los AngelesA. N Otte - Georgia Institute of TechnologyN Park - University of ChicagoM Pohl - University of PotsdamA Popkow - University of California, Los AngelesE Pueschel - DESY, Zeuthen, GermanyJ Quinn - University College DublinK Ragan - McGill UniversityP. T Reynolds - Cork Institute of TechnologyG. T Richards - Georgia Institute of TechnologyE Roache - Harvard UniversityC Rulten - University of MinnesotaI Sadeh - DESY, Zeuthen, GermanyM Santander - Columbia UniversityG. H Sembroski - Purdue University West LafayetteK Shahinyan - University of MinnesotaA. W Smith - University of Maryland, College ParkD Staszak - University of ChicagoI Telezhinsky - DESY, Zeuthen, GermanyS Trépanier - McGill UniversityJ. V Tucci - Purdue University West LafayetteJ Tyler - McGill UniversityS. P Wakely - University of ChicagoA Weinstein - Iowa State UniversityP Wilcox - University of IowaD. A Williams - University of California, Santa CruzB Zitzer - McGill UniversityVERITAS Collaboration
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Vol.95(8), 082001
- DOI
- 10.1103/PhysRevD.95.082001
- ISSN
- 2470-0010
- eISSN
- 2470-0029
- Grant note
- DOI: 10.13039/100000001, name: National Science Foundation; DOI: 10.13039/100000014, name: Smithsonian Institution; DOI: 10.13039/501100000038, name: Natural Sciences and Engineering Research Council of Canada; DOI: 10.13039/100000015, name: U.S. Department of Energy, award: DE-SC0010010, DE-AC02-05CH11231; DOI: 10.13039/100007739, name: Aspen Center for Physics
- Language
- English
- Date published
- 03/15/2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199820702771
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