Quark-flavored scalar dark matter - INSPIRE

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Quark-flavored scalar dark matter

Bhubanjyoti Bhattacharya
(
- Montreal U.
)
,
David London
(
- Montreal U.
)
,
James M. Cline
(
- McGill U. and
- Bohr Inst.
)
,
Alakabha Datta
(
- Mississippi U.
)
,
Grace Dupuis
(
- McGill U.
)

Sep 14, 2015

16 pages

Published in:

Phys.Rev.D 92 (2015) 11, 115012

Published: Dec 15, 2015

e-Print:

1509.04271 [hep-ph]

DOI:

10.1103/PhysRevD.92.115012

Report number:

UDEM-GPP-TH-15-244,
UMISS-HEP-2015-03

View in:

ADS Abstract Service

reference search27 citations

Citations per year

Abstract: (APS)

It is an intriguing possibility that dark matter (DM) could have flavor quantum numbers like the quarks. We propose and investigate a class of UV-complete models of this kind, in which the dark matter is in a scalar triplet of an SU(3) flavor symmetry, and interacts with quarks via a colored flavor-singlet fermionic mediator. Such mediators could be discovered at the LHC if their masses are ∼1 TeV. We constrain the DM-mediator couplings using relic abundance, direct detection, and flavor-changing neutral-current considerations. We find that, for reasonable values of its couplings, scalar flavored DM can contribute significantly to the real and imaginary parts of the Bs-B¯s mixing amplitude. We further assess the potential for such models to explain the Galactic center GeV gamma-ray excess.

Note:

16 pages, 14 figures; added section on benchmark models and typographical errors corrected

95.35.+d
dark matter: scalar
triplet: scalar
neutral current: flavor changing
symmetry: flavor
flavor: SU(3)
mediation
quark
dark matter: direct detection
dark matter: annihilation

References(53)

Figures(18)

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(
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