The morphology of exciting dark matter and the galactic 511 keV signal - INSPIRE

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The morphology of exciting dark matter and the galactic 511 keV signal

Christopher V. Cappiello
(
- Queen's U., Kingston and
- Perimeter Inst. Theor. Phys.
)
,
Michael Jafs
(
- Queen's U., Kingston and
- McGill U.
)
,
Aaron C. Vincent
(
- Queen's U., Kingston and
- Perimeter Inst. Theor. Phys.
)

Jul 27, 2023

13 pages

Published in:

JCAP 11 (2023) 003

Published: Nov 6, 2023

e-Print:

2307.15114 [hep-ph]

DOI:

10.1088/1475-7516/2023/11/003

View in:

ADS Abstract Service

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Abstract: (IOP)

We study the morphology of the 511 keV signal that could be produced by exciting dark matter (XDM) in the Milky Way. In this model, collisions between dark matter particles excite the dark matter to a state that can then decay back to the ground state, releasing an electron-positron pair. These electrons and positrons would then annihilate, producing 511 keV photons that could explain the 511 keV signal seen by INTEGRAL at the Galactic Center. We compare the resulting flux with the most recent INTEGRAL data, performing the first full statistical analysis of the exciting dark matter model. We focus on exciting dark matter in the mass and cross section ranges 100 GeV ≲ mχ ≲ 3 TeV and 10

^{-19}

cm

^{3}

s

^{-1}

〈σv〉 10

^{-16}

cm

^{3}

s

^{-1}

. We show that exciting dark matter can provide a significantly better fit than the simpler case of annihilating dark matter, with Δχ

^{2}

> 16 for all but one of the density profiles we consider.

Note:

6 pages, 3 figures. Updated to fix typos and match the published version

dark matter theory
X-rays
dark matter: halo
galaxy
dark matter: density
positron
ground state
photon
flux
electron

References(63)

Figures(3)

DOI:
- 10.1086/180878

[2]

The 511 keV emission from positron annihilation in the Galaxy

et al.

- Rev.Mod.Phys. 83 (2011) 1001-1056
•
e-Print:
- 1009.4620
•
DOI:
- 10.1103/RevModPhys.83.1001

Snowmass2021 Cosmic Frontier White Paper: Puzzling Excesses in Dark Matter Searches and How to Resolve Them

Rebecca K. Leane
(
- SLAC and
- KIPAC, Menlo Park
)
,
Seodong Shin
(
- Jeonbuk Natl. U.
)
,
Liang Yang
(
- UC, San Diego
)
,
Govinda Adhikari
(
- UC, San Diego
)
,
Haider Alhazmi
(
- Jazan U.
)

et al.

e-Print:
- 2203.06859

[4]

The Positron Puzzle

Thomas Siegert

DOI:
- 10.1086/304994

[6]

On the morphology of the electron-positron annihilation emission as seen by SPI/INTEGRAL

- Astrophys.J. 720 (2010) 1772-1780
•
e-Print:
- 1007.4753
•
DOI:
- 10.1088/0004-637X/720/2/1772

DOI:
- 10.1016/j.newar.2008.06.019

[8]

Diffuse emission measurement with INTEGRAL/SPI as indirect probe of cosmic-ray electrons and positrons

et al.

- Astrophys.J. 739 (2011) 29
•
e-Print:
- 1107.0200
•
DOI:
- 10.1088/0004-637X/739/1/29

[9]

Constraints on positron annihilation kinematics in the inner Galaxy

et al.

- Astron.Astrophys. 627 (2019) A126
•
e-Print:
- 1906.00498
•
DOI:
- 10.1051/0004-6361/201833856

Diffuse Galactic antimatter from faint thermonuclear supernovae in old stellar populations

Roland M. Crocker
(
- Australian Natl. U., Canberra
)
,
Ashley J. Ruiter
(
- Australian Natl. U., Canberra and
- ARC, Canberra
)
,
Ivo R. Seitenzahl
(
- Australian Natl. U., Canberra and
- ARC, Canberra
)
,
Fiona H. Panther
(
- Australian Natl. U., Canberra and
- ARC, Canberra
)
,
Holger Baumgardt
(
- Queensland U.
)

et al.

- Nature Astronomy 1, Article number: 0135 (2017)
•
e-Print:
- 1607.03495
•
DOI:
- 10.1038/s41550-017-0135

[11]

The Galactic 511 keV Line and the Intergalactic Positron Density

Aaron C. Vincent
(
- Valencia U., IFIC
)
,
Antonio Vecchio
(
- Calabria U.
)
,
Jordi Miralda-Escudé
(
- ICREA, Barcelona and
- ICC, Barcelona U.
)
,
Carlos Peña Garay
(
- Valencia U., IFIC
)

- Phys.Procedia 61 (2015) 796-801
•
DOI:
- 10.1016/j.phpro.2014.12.102

[12]

MeV dark matter: Has it been detected?

Celine Boehm
(
- Oxford U.
)
,
Dan Hooper
(
- Oxford U.
)
,
Joseph Silk
(
- Oxford U. and
- Paris, Inst. Astrophys.
)
,
Michel Casse
(
- Paris, Inst. Astrophys. and
- Saclay
)
,
Jacques Paul
(
- Saclay and
- Paris U. VII, APC
)

- Phys.Rev.Lett. 92 (2004) 101301
•
e-Print:
- astro-ph/0309686
•
DOI:
- 10.1103/PhysRevLett.92.101301

[13]

Light and heavy dark matter particles

C. Boehm
(
- Oxford U.
)
,
Pierre Fayet
(
- Ecole Normale Superieure
)
,
J. Silk
(
- Oxford U.
)

- Phys.Rev.D 69 (2004) 101302
•
e-Print:
- hep-ph/0311143
•
DOI:
- 10.1103/PhysRevD.69.101302

[14]

Possible evidence for axino dark matter in the galactic bulge

Dan Hooper
(
- Oxford U.
)
,
Lian-Tao Wang
(
- Wisconsin U., Madison
)

- Phys.Rev.D 70 (2004) 063506
•
e-Print:
- hep-ph/0402220
•
DOI:
- 10.1103/PhysRevD.70.063506

[15]

Unstable relics as a source of galactic positrons

Charles Picciotto
(
- Victoria U.
)
,
Maxim Pospelov
(
- Victoria U. and
- Sussex U.
)

- Phys.Lett.B 605 (2005) 15-25
•
e-Print:
- hep-ph/0402178
•
DOI:
- 10.1016/j.physletb.2004.11.025

[16]

Light neutralino dark matter in the NMSSM

John F. Gunion
(
- UC, Davis
)
,
Dan Hooper
(
- Oxford U. and
- Fermilab
)
,
Bob McElrath
(
- UC, Davis
)

- Phys.Rev.D 73 (2006) 015011
•
e-Print:
- hep-ph/0509024
•
DOI:
- 10.1103/PhysRevD.73.015011

[17]

Axino Light Dark Matter and Neutrino Masses with R-parity Violation

- JHEP 10 (2006) 082
•
e-Print:
- hep-ph/0607076
•
DOI:
- 10.1088/1126-6708/2006/10/082

[18]

Exciting Dark Matter and the INTEGRAL/SPI 511 keV signal

- Phys.Rev.D 76 (2007) 083519
•
e-Print:
- astro-ph/0702587
•
DOI:
- 10.1103/PhysRevD.76.083519

[19]

Galactic 511 keV line from MeV milli-charged dark matter

- Phys.Rev.D 77 (2008) 123503
•
e-Print:
- 0711.3528
•
DOI:
- 10.1103/PhysRevD.77.123503

[20]

Secluded WIMP Dark Matter

Maxim Pospelov
(
- Victoria U. and
- Perimeter Inst. Theor. Phys.
)
,
Adam Ritz
(
- Victoria U.
)
,
Mikhail B. Voloshin
(
- Minnesota U., Theor. Phys. Inst. and
- Moscow, ITEP
)

- Phys.Lett.B 662 (2008) 53-61
•
e-Print:
- 0711.4866
•
DOI:
- 10.1016/j.physletb.2008.02.052

[21]

The galactic 511 keV line from electroweak scale WIMPs

Maxim Pospelov
(
- Perimeter Inst. Theor. Phys. and
- Victoria U.
)
,
Adam Ritz
(
- Victoria U.
)

- Phys.Lett.B 651 (2007) 208-215
•
e-Print:
- hep-ph/0703128
•
DOI:
- 10.1016/j.physletb.2007.06.027

[22]

A Theory of Dark Matter

- Phys.Rev.D 79 (2009) 015014
•
e-Print:
- 0810.0713
•
DOI:
- 10.1103/PhysRevD.79.015014

[23]

Exciting dark matter in the galactic center

- Phys.Rev.D 81 (2010) 043523
•
e-Print:
- 0911.2222
•
DOI:
- 10.1103/PhysRevD.81.043523

[24]

A New twist on excited dark matter: Implications for INTEGRAL, PAMELA/ATIC/PPB-BETS, DAMA

- Phys.Rev.D 79 (2009) 063530
•
e-Print:
- 0901.4327
•
DOI:
- 10.1103/PhysRevD.79.063530

[25]

PAMELA, DAMA, INTEGRAL and Signatures of Metastable Excited WIMPs

- JCAP 09 (2009) 037
•
e-Print:
- 0903.1037
•
DOI:
- 10.1088/1475-7516/2009/09/037

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