A robust excess in the cosmic-ray antiproton spectrum: Implications for annihilating dark matter
Abstract
An excess of $~ 10–20 GeV$ cosmic-ray antiprotons has been identified in the spectrum reported by the AMS-02 Collaboration. The systematic uncertainties associated with this signal, however, have made it difficult to interpret these results. In this paper, we revisit the uncertainties associated with the time, charge and energy-dependent effects of solar modulation, the antiproton production cross section, and interstellar cosmic-ray propagation. After accounting for these uncertainties, we confirm the presence of a $4.7σ$ antiproton excess, consistent with that arising from a $$m_χ ≈ 64–88 GeV$$ dark matter particle annihilating to $$\bar{bb}$$ with a cross section of $$σv ≃ (0.8–5.2) × 10^{-26} m^3/s$$. If we allow for the stochastic acceleration of secondary antiprotons in supernova remnants, the data continue to favor a similar range of dark matter models $$(m_χ ≈ 46–94 GeV, σv ≈ (0.7–3.8) × 10^{-26} cm^3/s)$$ with a significance of $3.3σ$. The same range of dark matter models that are favored to explain the antiproton excess can also accommodate the excess of GeV-scale gamma rays observed from the Galactic center.
- Authors:
-
- Oakland Univ., Rochester, MI (United States)
- The Ohio State Univ., Columbus, OH (United States)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1529338
- Alternate Identifier(s):
- OSTI ID: 1523690
- Report Number(s):
- arXiv:1903.02549; FERMILAB-PUB-19-091-A
Journal ID: ISSN 2470-0010; PRVDAQ; 1723895
- Grant/Contract Number:
- AC02-07CH11359; FG02-13ER41958; SC0009924
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Volume: 99; Journal Issue: 10; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Cholis, Ilias, Linden, Tim, and Hooper, Dan. A robust excess in the cosmic-ray antiproton spectrum: Implications for annihilating dark matter. United States: N. p., 2019.
Web. doi:10.1103/PhysRevD.99.103026.
Cholis, Ilias, Linden, Tim, & Hooper, Dan. A robust excess in the cosmic-ray antiproton spectrum: Implications for annihilating dark matter. United States. doi:10.1103/PhysRevD.99.103026.
Cholis, Ilias, Linden, Tim, and Hooper, Dan. Fri .
"A robust excess in the cosmic-ray antiproton spectrum: Implications for annihilating dark matter". United States. doi:10.1103/PhysRevD.99.103026. https://www.osti.gov/servlets/purl/1529338.
@article{osti_1529338,
title = {A robust excess in the cosmic-ray antiproton spectrum: Implications for annihilating dark matter},
author = {Cholis, Ilias and Linden, Tim and Hooper, Dan},
abstractNote = {An excess of $~ 10–20 GeV$ cosmic-ray antiprotons has been identified in the spectrum reported by the AMS-02 Collaboration. The systematic uncertainties associated with this signal, however, have made it difficult to interpret these results. In this paper, we revisit the uncertainties associated with the time, charge and energy-dependent effects of solar modulation, the antiproton production cross section, and interstellar cosmic-ray propagation. After accounting for these uncertainties, we confirm the presence of a $4.7σ$ antiproton excess, consistent with that arising from a $m_χ ≈ 64–88 GeV$ dark matter particle annihilating to $\bar{bb}$ with a cross section of $σv ≃ (0.8–5.2) × 10^{-26} m^3/s$. If we allow for the stochastic acceleration of secondary antiprotons in supernova remnants, the data continue to favor a similar range of dark matter models $(m_χ ≈ 46–94 GeV, σv ≈ (0.7–3.8) × 10^{-26} cm^3/s)$ with a significance of $3.3σ$. The same range of dark matter models that are favored to explain the antiproton excess can also accommodate the excess of GeV-scale gamma rays observed from the Galactic center.},
doi = {10.1103/PhysRevD.99.103026},
journal = {Physical Review D},
number = 10,
volume = 99,
place = {United States},
year = {2019},
month = {5}
}
Web of Science
Works referenced in this record:
Experimental Study of Particle Production at Small Angles in Nucleon-Nucleon Collisions at 19 and 23 GeV/ c
journal, February 1965
- Dekkers, D.; Geibel, J. A.; Mermod, R.
- Physical Review, Vol. 137, Issue 4B
Inclusive Production of , , , in High-Energy Collisions
journal, November 1977
- Johnson, J. R.; Kammerud, R.; Ohsugi, T.
- Physical Review Letters, Vol. 39, Issue 19
The Structure of Cold Dark Matter Halos
journal, May 1996
- Navarro, Julio F.; Frenk, Carlos S.; White, Simon D. M.
- The Astrophysical Journal, Vol. 462
Updated cosmic-ray and radio constraints on light dark matter: Implications for the GeV gamma-ray excess at the Galactic Center
journal, December 2014
- Bringmann, Torsten; Vollmann, Martin; Weniger, Christoph
- Physical Review D, Vol. 90, Issue 12
WIMPs at the galactic center
journal, May 2015
- Agrawal, Prateek; Batell, Brian; Fox, Patrick J.
- Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 05
The role of antimatter searches in the hunt for supersymmetric dark matter
journal, July 2004
- Profumo, Stefano; Ullio, Piero
- Journal of Cosmology and Astroparticle Physics, Vol. 2004, Issue 07
Solar Modulation of Galactic Cosmic Rays
journal, November 1968
- Gleeson, L. J.; Axford, W. I.
- The Astrophysical Journal, Vol. 154
Testing Astrophysical Models for the PAMELA Positron Excess with Cosmic Ray Nuclei
journal, August 2009
- Mertsch, Philipp; Sarkar, Subir
- Physical Review Letters, Vol. 103, Issue 8
Antiproton constraints on the GeV gamma-ray excess: a comprehensive analysis
journal, December 2014
- Cirelli, Marco; Gaggero, Daniele; Giesen, Gaëlle
- Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 12
Precision Measurement of the Helium Flux in Primary Cosmic Rays of Rigidities 1.9 GV to 3 TV with the Alpha Magnetic Spectrometer on the International Space Station
journal, November 2015
- Aguilar, M.; Aisa, D.; Alpat, B.
- Physical Review Letters, Vol. 115, Issue 21
Probing dark matter annihilation in the Galaxy with antiprotons and gamma rays
journal, October 2017
- Cuoco, Alessandro; Heisig, Jan; Korsmeier, Michael
- Journal of Cosmology and Astroparticle Physics, Vol. 2017, Issue 10
Parametrization of the antiproton inclusive production cross section on nuclei
journal, November 2003
- Duperray, R. P.; Huang, C. -Y.; Protasov, K. V.
- Physical Review D, Vol. 68, Issue 9
Dark matter and pulsar model constraints from Galactic Center Fermi-LAT gamma-ray observations
journal, October 2013
- Gordon, Chris; Macías, Oscar
- Physical Review D, Vol. 88, Issue 8
Possible evidence for the stochastic acceleration of secondary antiprotons by supernova remnants
journal, June 2017
- Cholis, Ilias; Hooper, Dan; Linden, Tim
- Physical Review D, Vol. 95, Issue 12
Detection of a gamma-ray source in the Galactic Center consistent with extended emission from dark matter annihilation and concentrated astrophysical emission
journal, October 2012
- Abazajian, Kevork N.; Kaplinghat, Manoj
- Physical Review D, Vol. 86, Issue 8
A tale of tails: Dark matter interpretations of the Fermi GeV excess in light of background model systematics
journal, March 2015
- Calore, Francesca; Cholis, Ilias; McCabe, Christopher
- Physical Review D, Vol. 91, Issue 6
Dark matter annihilation in the Galactic Center as seen by the Fermi Gamma Ray Space Telescope
journal, March 2011
- Hooper, Dan; Goodenough, Lisa
- Physics Letters B, Vol. 697, Issue 5
Secondary Antiprotons and Propagation of Cosmic Rays in the Galaxy and Heliosphere
journal, January 2002
- Moskalenko, Igor V.; Strong, Andrew W.; Ormes, Jonathan F.
- The Astrophysical Journal, Vol. 565, Issue 1
Weak corrections are relevant for dark matter indirect detection
journal, March 2011
- Ciafaloni, Paolo; Comelli, Denis; Riotto, Antonio
- Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 03
A precision search for WIMPs with charged cosmic rays
journal, January 2018
- Reinert, Annika; Winkler, Martin Wolfgang
- Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 01
Charged particle production in proton-proton inclusive reactions at very high energies
journal, September 1974
- Capiluppi, P.; Giacomelli, G.; Rossi, A. M.
- Nuclear Physics B, Vol. 79, Issue 2
Can supersymmetry naturally explain the positron excess?
journal, May 2004
- Hooper, Dan; Taylor, James E.; Silk, Joseph
- Physical Review D, Vol. 69, Issue 10
SEARCHING FOR DARK MATTER ANNIHILATION IN RECENTLY DISCOVERED MILKY WAY SATELLITES WITH FERMI -LAT
journal, January 2017
- Albert, A.; Anderson, B.; Bechtol, K.
- The Astrophysical Journal, Vol. 834, Issue 2
PPPC 4 DM ID: a poor particle physicist cookbook for dark matter indirect detection
journal, March 2011
- Cirelli, Marco; Corcella, Gennaro; Hektor, Andi
- Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 03
Production and Acceleration of Antinuclei in Supernova Shockwaves
journal, August 2017
- Tomassetti, Nicola; Oliva, Alberto
- The Astrophysical Journal, Vol. 844, Issue 2
Propagation of Cosmic‐Ray Nucleons in the Galaxy
journal, December 1998
- Strong, Andrew W.; Moskalenko, Igor V.
- The Astrophysical Journal, Vol. 509, Issue 1
Hidden sector dark matter and the Galactic Center gamma-ray excess: a closer look
journal, November 2017
- Escudero, Miguel; Witte, Samuel J.; Hooper, Dan
- Journal of Cosmology and Astroparticle Physics, Vol. 2017, Issue 11
Parametrization of invariant cross section in collisions using a new scaling variable
journal, September 1982
- Tan, L. C.; Ng, L. K.
- Physical Review D, Vol. 26, Issue 5
Two-dimensional turbulence
journal, May 1980
- Kraichnan, R. H.; Montgomery, D.
- Reports on Progress in Physics, Vol. 43, Issue 5
New Calculation of Antiproton Production by Cosmic ray Protons and Nuclei
journal, April 2015
- Kachelriess, Michael; Moskalenko, Igor V.; Ostapchenko, Sergey S.
- The Astrophysical Journal, Vol. 803, Issue 2
HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes)
journal, January 2001
- Corcella, Gennaro; Knowles, Ian G.; Marchesini, Giuseppe
- Journal of High Energy Physics, Vol. 2001, Issue 01
Precise relic WIMP abundance and its impact on searches for dark matter annihilation
journal, July 2012
- Steigman, Gary; Dasgupta, Basudeb; Beacom, John F.
- Physical Review D, Vol. 86, Issue 2
A predictive analytic model for the solar modulation of cosmic rays
journal, February 2016
- Cholis, Ilias; Hooper, Dan; Linden, Tim
- Physical Review D, Vol. 93, Issue 4
Is the PAMELA anomaly caused by supernova explosions near the Earth?
journal, September 2009
- Fujita, Yutaka; Kohri, Kazunori; Yamazaki, Ryo
- Physical Review D, Vol. 80, Issue 6
Precision Measurement of the Boron to Carbon Flux Ratio in Cosmic Rays from 1.9 GV to 2.6 TV with the Alpha Magnetic Spectrometer on the International Space Station
journal, November 2016
- Aguilar, M.; Ali Cavasonza, L.; Ambrosi, G.
- Physical Review Letters, Vol. 117, Issue 23
Pinpointing cosmic ray propagation with the AMS-02 experiment
journal, June 2010
- Pato, Miguel; Hooper, Dan; Simet, Melanie
- Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 06
Can we explain AMS-02 antiproton and positron excesses simultaneously by nearby supernovae without pulsars or dark matter?
journal, February 2016
- Kohri, Kazunori; Ioka, Kunihito; Fujita, Yutaka
- Progress of Theoretical and Experimental Physics, Vol. 2016, Issue 2
The cosmic ray antiproton background for AMS-02
journal, September 2014
- Kappl, Rolf; Winkler, Martin Wolfgang
- Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 09
Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station
journal, April 2015
- Aguilar, M.; Aisa, D.; Alpat, B.
- Physical Review Letters, Vol. 114, Issue 17
A novel determination of the local dark matter density
journal, August 2010
- Catena, Riccardo; Ullio, Piero
- Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 08
Origin of the gamma rays from the Galactic Center
journal, December 2011
- Hooper, Dan; Linden, Tim
- Physical Review D, Vol. 84, Issue 12
FERMI -LAT OBSERVATIONS OF HIGH-ENERGY γ -RAY EMISSION TOWARD THE GALACTIC CENTER
journal, February 2016
- Ajello, M.; Albert, A.; Atwood, W. B.
- The Astrophysical Journal, Vol. 819, Issue 1
Cosmic Antiprotons as a Probe for Supersymmetric Dark Matter?
journal, November 1999
- Bergstrom, Lars; Edsjo, Joakim; Ullio, Piero
- The Astrophysical Journal, Vol. 526, Issue 1
Stochastic reacceleration of cosmic rays in the interstellar medium
journal, August 1994
- Seo, E. S.; Ptuskin, V. S.
- The Astrophysical Journal, Vol. 431
Origin of the Positron Excess in Cosmic Rays
journal, July 2009
- Blasi, Pasquale
- Physical Review Letters, Vol. 103, Issue 5
Inclusive production of protons, anti-protons and neutrons in p+p collisions at 158 GeV/c beam momentum
journal, November 2009
- Anticic, T.; Baatar, B.; Bartke, J.
- The European Physical Journal C, Vol. 65, Issue 1-2
A brief introduction to PYTHIA 8.1
journal, June 2008
- Sjöstrand, Torbjörn; Mrenna, Stephen; Skands, Peter
- Computer Physics Communications, Vol. 178, Issue 11
Production of deuterons, tritons, nuclei, and their antinuclei in collisions at , 2.76, and 7 TeV
journal, February 2018
- Acharya, S.; Adam, J.; Adamová, D.
- Physical Review C, Vol. 97, Issue 2
What does the PAMELA antiproton spectrum tell us about dark matter?
journal, March 2015
- Hooper, Dan; Linden, Tim; Mertsch, Philipp
- Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 03
Erratum: Detection of a gamma-ray source in the Galactic Center consistent with extended emission from dark matter annihilation and concentrated astrophysical emission [Phys. Rev. D 86 , 083511 (2012)]
journal, June 2013
- Abazajian, Kevork N.; Kaplinghat, Manoj
- Physical Review D, Vol. 87, Issue 12
A description of the Galactic Center excess in the Minimal Supersymmetric Standard Model
journal, August 2015
- Achterberg, Abraham; Amoroso, Simone; Caron, Sascha
- Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 08
The dark matter density at the Sun’s location
journal, November 2010
- Salucci, P.; Nesti, F.; Gentile, G.
- Astronomy & Astrophysics, Vol. 523
Galactic antiproton spectrum at high energies: Background expectation versus exotic contributions
journal, April 2007
- Bringmann, Torsten; Salati, Pierre
- Physical Review D, Vol. 75, Issue 8
Observation of the Identical Rigidity Dependence of He, C, and O Cosmic Rays at High Rigidities by the Alpha Magnetic Spectrometer on the International Space Station
journal, December 2017
- Aguilar, M.; Ali Cavasonza, L.; Alpat, B.
- Physical Review Letters, Vol. 119, Issue 25
Erratum: Dark matter and pulsar model constraints from Galactic Center Fermi-LAT gamma-ray observations [Phys. Rev. D 88, 083521 (2013)]
journal, February 2014
- Gordon, Chris; Macías, Oscar
- Physical Review D, Vol. 89, Issue 4
Novel Dark Matter Constraints from Antiprotons in Light of AMS-02
journal, May 2017
- Cuoco, Alessandro; Krämer, Michael; Korsmeier, Michael
- Physical Review Letters, Vol. 118, Issue 19
Constraints on Cosmic-Ray Propagation Models from a Global Bayesian Analysis
journal, February 2011
- Trotta, R.; Jóhannesson, G.; Moskalenko, I. V.
- The Astrophysical Journal, Vol. 729, Issue 2
Possible Dark Matter Annihilation Signal in the AMS-02 Antiproton Data
journal, May 2017
- Cui, Ming-Yang; Yuan, Qiang; Tsai, Yue-Lin Sming
- Physical Review Letters, Vol. 118, Issue 19
The characterization of the gamma-ray signal from the central Milky Way: A case for annihilating dark matter
journal, June 2016
- Daylan, Tansu; Finkbeiner, Douglas P.; Hooper, Dan
- Physics of the Dark Universe, Vol. 12
Cosmic ray acceleration in supernova remnants and the FERMI/PAMELA data
journal, December 2009
- Ahlers, Markus; Mertsch, Philipp; Sarkar, Subir
- Physical Review D, Vol. 80, Issue 12
Observation of New Properties of Secondary Cosmic Rays Lithium, Beryllium, and Boron by the Alpha Magnetic Spectrometer on the International Space Station
journal, January 2018
- Aguilar, M.; Ali Cavasonza, L.; Ambrosi, G.
- Physical Review Letters, Vol. 120, Issue 2
Production of hadrons at large transverse momentum in 200-, 300-, and 400-GeV and -nucleus collisions
journal, February 1979
- Antreasyan, D.; Cronin, J. W.; Frisch, H. J.
- Physical Review D, Vol. 19, Issue 3
Stochastic cosmic ray sources and the TeV break in the all-electron spectrum
journal, November 2018
- Mertsch, Philipp
- Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 11
Calculation of the equilibrium antiproton spectrum
journal, February 1983
- Tan, L. C.; Ng, L. K.
- Journal of Physics G: Nuclear Physics, Vol. 9, Issue 2
Features in the spectrum of cosmic-ray positrons from pulsars
journal, June 2018
- Cholis, Ilias; Karwal, Tanvi; Kamionkowski, Marc
- Physical Review D, Vol. 97, Issue 12
Studying the Milky Way pulsar population with cosmic-ray leptons
journal, September 2018
- Cholis, Ilias; Karwal, Tanvi; Kamionkowski, Marc
- Physical Review D, Vol. 98, Issue 6
Antiproton Flux, Antiproton-to-Proton Flux Ratio, and Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station
journal, August 2016
- Aguilar, M.; Ali Cavasonza, L.; Alpat, B.
- Physical Review Letters, Vol. 117, Issue 9
New evaluation of the antiproton production cross section for cosmic ray studies
journal, October 2014
- di Mauro, Mattia; Donato, Fiorenza; Goudelis, Andreas
- Physical Review D, Vol. 90, Issue 8
Comprehensive search for dark matter annihilation in dwarf galaxies
journal, April 2015
- Geringer-Sameth, Alex; Koushiappas, Savvas M.; Walker, Matthew G.
- Physical Review D, Vol. 91, Issue 8
Background model systematics for the Fermi GeV excess
journal, March 2015
- Calore, Francesca; Cholis, Ilias; Weniger, Christoph
- Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 03
Production of Mesons and Baryons at High Rapidity and High in Proton-Proton Collisions at
journal, June 2007
- Arsene, I.; Bearden, I. G.; Beavis, D.
- Physical Review Letters, Vol. 98, Issue 25
Inclusive production of low-momentum charged pions, kaons, and protons at x = 0 at the CERN intersecting storage rings
journal, December 1976
- Guettler, K.; Duff, B. G.; Prentice, M. N.
- Nuclear Physics B, Vol. 116, Issue 1
Constraining the origin of the rising cosmic ray positron fraction with the boron-to-carbon ratio
journal, February 2014
- Cholis, Ilias; Hooper, Dan
- Physical Review D, Vol. 89, Issue 4
Observation of New Properties of Secondary Cosmic Rays Lithium, Beryllium, and Boron by the Alpha Magnetic Spectrometer on the International Space Station
text, January 2018
- Aguilar Ulloa, Miguel Angel; Ali Cavasonza, Leila; Ambrosi, G.
- RWTH Aachen University
Observation of the Identical Rigidity Dependence of He, C, and O Cosmic Rays at High Rigidities by the Alpha Magnetic Spectrometer on the International Space Station
text, January 2017
- Aguilar, M.; Ali Cavasonza, Leila; Alpat, B.
- RWTH Aachen University
Works referencing / citing this record:
Remnants of Galactic Subhalos and Their Impact on Indirect Dark-Matter Searches
journal, June 2019
- Stref, Martin; Lacroix, Thomas; Lavalle, Julien
- Galaxies, Vol. 7, Issue 2
Investigating the dark matter signal in the cosmic ray antiproton flux with the machine learning method
journal, November 2019
- Lin, Su-Jie; Bi, Xiao-Jun; Yin, Peng-Fei
- Physical Review D, Vol. 100, Issue 10
Remnants of Galactic Subhalos and Their Impact on Indirect Dark-Matter Searches
journal, June 2019
- Stref, Martin; Lacroix, Thomas; Lavalle, Julien
- Galaxies, Vol. 7, Issue 2
Z ′ mediated WIMPs: dead, dying, or soon to be detected?
journal, November 2019
- Blanco, Carlos; Escudero, Miguel; Hooper, Dan
- Journal of Cosmology and Astroparticle Physics, Vol. 2019, Issue 11
Gamma-Ray Polarimetry: A New Window for the Nonthermal Universe
journal, September 2019
- Ilie, Cosmin
- Publications of the Astronomical Society of the Pacific, Vol. 131, Issue 1005
A novel scheme for Dark Matter Annihilation Feedback in cosmological simulations
journal, August 2019
- List, Florian; Iwanus, Nikolas; Elahi, Pascal J.
- Monthly Notices of the Royal Astronomical Society, Vol. 489, Issue 3
A black box for dark sector physics: predicting dark matter annihilation feedback with conditional GANs
journal, October 2019
- List, Florian; Bhat, Ishaan; Lewis, Geraint F.
- Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 3
Pseudo-Goldstone dark matter confronts cosmic ray and collider anomalies
journal, August 2019
- Cline, James M.; Toma, Takashi
- Physical Review D, Vol. 100, Issue 3
Return of the WIMP: Missing energy signals and the Galactic Center excess
journal, September 2019
- Carena, Marcela; Osborne, James; Shah, Nausheen R.
- Physical Review D, Vol. 100, Issue 5
Not as big as a barn: Upper bounds on dark matter-nucleus cross sections
journal, September 2019
- Digman, Matthew C.; Cappiello, Christopher V.; Beacom, John F.
- Physical Review D, Vol. 100, Issue 6
Annihilation signatures of hidden sector dark matter within early-forming microhalos
journal, November 2019
- Blanco, Carlos; Delos, M. Sten; Erickcek, Adrienne L.
- Physical Review D, Vol. 100, Issue 10
Heavy dark matter particle annihilation in dwarf spheroidal galaxies: Radio signals at the SKA telescope
journal, January 2020
- Kar, Arpan; Mitra, Sourav; Mukhopadhyaya, Biswarup
- Physical Review D, Vol. 101, Issue 2
A global view of the off-shell Higgs portal
journal, January 2020
- Ruhdorfer, Maximilian; Salvioni, Ennio; Weiler, Andreas
- SciPost Physics, Vol. 8, Issue 2
Fermi -LAT Observations of γ -Ray Emission toward the Outer Halo of M31
journal, July 2019
- Karwin, Christopher M.; Murgia, Simona; Campbell, Sheldon
- The Astrophysical Journal, Vol. 880, Issue 2