Journal article
Dark matter constraints from a joint analysis of dwarf Spheroidal galaxy observations with VERITAS
Physical review. D, v 95(8)
05 Apr 2017
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 similar to 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 x 10(-23) cm(3) s(-1) at 1 TeV for the bottom quark (b (b) over bar) final state, 2.85 x 10(-24) cm(3) s(-1) at 1 TeV for the tau lepton (tau+tau(-)) final state and 1.32 x 10-25 cm(3) s(-1) at 1 TeV for the gauge boson (gamma gamma) final state.
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Details
- Title
- 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 - National University of Ireland, GalwayW. Cui - Tsinghua UniversityM. K. Daniel - Harvard UniversityQ. Feng - McGill UniversityJ. P. Finley - Purdue University West LafayetteH. Fleischhack - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyL. Fortson - University of MinnesotaA. Furniss - California State University, East BayA. Geringer-Sameth - Brown UniversityS. Griffin - McGill UniversityJ. Grube - Stevens Institute of TechnologyM. Huetten - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyN. Hakansson - University of PotsdamD. Hanna - McGill UniversityO. Hervet - Santa Cruz Institute for Particle PhysicsJ. Holder - University of DelawareG. Hughes - Harvard UniversityB. Hummensky - Harvard UniversityC. A. Johnson - Santa Cruz Institute for Particle PhysicsP. Kaaret - University of IowaP. Kar - University of UtahN. Kelley-Hoskins - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyM. Kertzman - DePauw UniversityD. Kieda - University of UtahS. Koushiappas - Brown UniversityM. Krause - DESY, Platanenallee 6, D-15738 Zeuthen, GermanyF. Krennrich - University of DelawareM. J. Lang - National University of Ireland, GalwayT. T. Y. Lin - McGill UniversityS. McArthur - Purdue University West LafayetteP. Moriarty - National University of Ireland, GalwayR. Mukherjee - Columbia UniversityD. 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 - Univ Coll Dublin, Sch Phys, Dublin 4, IrelandJ. 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, Platanenallee 6, D-15738 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, Platanenallee 6, D-15738 Zeuthen, GermanyS. Trepanier - McGill UniversityJ. V. Tucci - Purdue University West LafayetteJ. Tyler - McGill UniversityS. P. Wakely - University of ChicagoA. Weinstein - Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USAP. Wilcox - University of IowaD. A. Williams - Santa Cruz Institute for Particle PhysicsB. Zitzer - McGill Univ, Phys Dept, Montreal, PQ H3A 2T8, CanadaVERITAS Collaboration
- Publication Details
- Physical review. D, v 95(8)
- Publisher
- Amer Physical Soc
- Number of pages
- 14
- Grant note
- DE-AC02-05CH11231 / Office of Science of the U.S. Department of Energy; United States Department of Energy (DOE) U.S. Department of Energy Office of Science; United States Department of Energy (DOE) Smithsonian Institution U.S. National Science Foundation; National Science Foundation (NSF) Natural Sciences and Engineering Research Council of Canada (NSERC) in Canada; Natural Sciences and Engineering Research Council of Canada (NSERC) 1607491 / Direct For Mathematical & Physical Scien; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) DE-SC0010010 / Department of Energy; United States Department of Energy (DOE) 1407326 / Division Of Physics; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000406742300001
- Scopus ID
- 2-s2.0-85021677590
- Other Identifier
- 991019201429204721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics
- Physics, Particles & Fields