511 keV γ-ray emission from the galactic bulge by MeV millicharged dark matter

被引：0

作者：

Huh, Ji-Haeng ^{[1
]}

Kim, Jihn E. ^{[1
]}

Park, . Tong-Chul ^{[1
]}

Park, Seong Chan ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea

来源：

SUPERSYMMETRY AND THE UNIFICATION OF FUNDAMENTAL INTERACTIONS | 2008年 / 1078卷

关键词：

Millicharged particles; 511 keV line; Dark matter; Galactic bulge;

D O I：

暂无

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose a possible explanation for the recently observed anomalous 511 keV tine with a new "millicharged" fermion. The new fermion is light [O(MeV)]. Nevertheless, it has never been observed by any collider experiments by virtue of its tiny electromagnetic charge se. In particular, we constrain parameters of thus millicharged particle if the 511 keV cosmic gamma-ray emission from the galactic bulge is due to positron production from thus new particle.

引用

页码：554 / 556

页数：3

共 50 条

[31] Exciting dark matter and the INTEGRAL/SPI 511 keV signal
Finkbeiner, Douglas P.
Weiner, Neal
PHYSICAL REVIEW D, 2007, 76 (08)
[32] Sterile neutrino dark matter in B-L extension of the standard model and galactic 511 keV line
Khalil, Shaaban
Seto, Osamu
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2008, (10):
[33] A dark matter solution for the XENON1T electron excess and the galactic center 511 keV line
Farzan, Yasaman
SIXTEENTH MARCEL GROSSMANN MEETING, 2023, : 2174 - 2188
[34] ON THE ORIGIN OF VARIABLE 511 KEV LINE EMISSION FROM THE GALACTIC-CENTER REGION
RAMATY, R
LEVENTHAL, M
CHAN, KW
LINGENFELTER, RE
ASTROPHYSICAL JOURNAL, 1992, 392 (02): : L63 - L66
[35] Galactic binaries can explain the Fermi Galactic centre excess and 511 keV emission
Bartels, R.
Calore, F.
Storm, E.
Weniger, C.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2018, 480 (03) : 3826 - 3841
[36] Gamma-ray constraint on galactic positron production by MeV dark matter
Beacom, JF
Bell, NF
Bertone, G
PHYSICAL REVIEW LETTERS, 2005, 94 (17)
[37] OSSE mapping of galactic 511 keV positron annihilation line emission
Purcell, WR
Cheng, LX
Dixon, DD
Kinzer, RL
Kurfess, JD
Leventhal, M
Saunders, MA
Skibo, JG
Smith, DM
Tueller, J
ASTROPHYSICAL JOURNAL, 1997, 491 (02): : 725 - 748
[38] Constraints on dark matter and the shape of the Milky Way dark halo from the 511-keV line
Ascasibar, Y.
Jean, P.
Boehm, C.
Knodlseder, J.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 368 (04) : 1695 - 1705
[39] Osse Mapping of Galactic 511 keV Positron Annihilation Line Emission
Astrophysical Journal, 491 (01):
[40] Enhanced monochromatic photon emission from millicharged co-interacting dark matter
Du, Mingxuan
Liu, Jia
Wang, Xiao-Ping
Wu, Tianhao
JOURNAL OF HIGH ENERGY PHYSICS, 2024, (10):

← 1 2 3 4 5 →