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The Galactic Center Region Gamma Ray Excess from A Supersymmetric Leptophilic Higgs Model
High Energy Physics - Phenomenology · Submitted 2 Feb 2011
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim This leads to an enhanced coupling of scalars to leptons and allows the model to naturally achieve the required phenomenology in order to explain the gamma ray excess.
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The abstract, sentence by sentence
In a recent paper by Hooper and Goodenough, data from the Fermi Gamma Ray Telescope was analyzed and an excess of gamma rays was claimed to be found in the emission spectrum from the Galactic Center Region. Hooper and Goodenough suggest that the claimed excess can be well explained by 7-10 GeV annihilating dark matter with a power law density profile if the dark matter annihilates predominantly to tau pairs. In this paper we present such a dark matter model by extending the MSSM to include four Higgs doublets and one scalar singlet. A Z2 symmetry is imposed that enforces a Yukawa structure so that the up quarks, down quarks, and leptons each receive mass from a distinct doublet. This leads to an enhanced coupling of scalars to leptons and allows the model to naturally achieve the required phenomenology in order to explain the gamma ray excess. Our model yields the correct dark matter thermal relic density and avoids collider bounds from measurements of the Z width as well as direct production at LEP.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | In a recent paper by Hooper and Goodenough, data from the Fermi Gamma Ray Telescope was analyzed and an excess of gamma rays was claimed to be found in the emission spectrum from the Galactic Center Region. | background 1.00 | 0.03 | 0.03 | asserted 0.83 |
| s1 | Hooper and Goodenough suggest that the claimed excess can be well explained by 7-10 GeV annihilating dark matter with a power law density profile if the dark matter annihilates predominantly to tau pairs. | background 0.98 | 0.04 | 0.11 | hedged possibility 0.98 |
| s2 | In this paper we present such a dark matter model by extending the MSSM to include four Higgs doublets and one scalar singlet. | contribution 0.78 | 0.88 | 0.10 | asserted 1.00 |
| s3 | A Z2 symmetry is imposed that enforces a Yukawa structure so that the up quarks, down quarks, and leptons each receive mass from a distinct doublet. | method 0.92 | 0.81 | 0.03 | asserted 1.00 |
| s4 | This leads to an enhanced coupling of scalars to leptons and allows the model to naturally achieve the required phenomenology in order to explain the gamma ray excess. | interpretation 0.55 | 0.64 | 0.46 | asserted 0.93 |
| s5 | Our model yields the correct dark matter thermal relic density and avoids collider bounds from measurements of the Z width as well as direct production at LEP. | result 0.99 | 0.90 | 0.30 | asserted 1.00 |
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The paper
Original abstract
In a recent paper by Hooper and Goodenough, data from the Fermi Gamma Ray Telescope was analyzed and an excess of gamma rays was claimed to be found in the emission spectrum from the Galactic Center Region. Hooper and Goodenough suggest that the claimed excess can be well explained by 7-10 GeV annihilating dark matter with a power law density profile if the dark matter annihilates predominantly to tau pairs. In this paper we present such a dark matter model by extending the MSSM to include four Higgs doublets and one scalar singlet. A Z2 symmetry is imposed that enforces a Yukawa structure so that the up quarks, down quarks, and leptons each receive mass from a distinct doublet. This leads to an enhanced coupling of scalars to leptons and allows the model to naturally achieve the required phenomenology in order to explain the gamma ray excess. Our model yields the correct dark matter thermal relic density and avoids collider bounds from measurements of the Z width as well as direct production at LEP.
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References
How the literature uses it
15 arXiv papers cite this in 18 sentences
Papers citing it · 8 sentences without a confident label
Cites it as background 10 papers
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There have been already a large number of attempts to explain the excess in a plethora of particle physics theories/models [ref] , including supersymmetric (SUSY) [ref] scenarios [ref] .
A description of the Galactic Center excess in the Minimal Supersymmetric Standard Model · Introduction · 0.95
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All of of these options present interesting model building challenges and several interesting attempts have been made [ref] , mostly for annihilation to $b$'s, $τ's$ and jets.
WIMPs at the Galactic Center · Introduction · 0.90
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As for the DM interpretation, there is by now an extensive array of DM scenarios that both can explain the observed emission by DM annihilation while simultaneously being compatible with other direct, indirect and collider constraints [ref] .
A Tale of Tails: Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics · Introduction · 0.90
What it cites · 18 sentences without a confident label
Builds on 1 paper
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In this paper we construct a dark matter model satisfying the above conditions by adding a singlet to the supersymmetric leptophilic Higgs model (SLHM) [ref] .
The Supersymmetric Leptophilic Higgs Model · Introduction · 0.96
Uses the method or tool of 2 papers
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To show this, we calculate the relic abundance which is given by [ref] Ω_χ_1 h^2 ≈2.82 ×10^8 Y_∞(m_χ_1/GeV), where Y_∞^-1 = 0.264 √(g_*)m_Pm_χ_1{a/x_f+3(b-14a)/x_f^2}.
Supersymmetric Dark Matter · Annihilation to Fermions · 0.90
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Given the partonic interaction between dark matter and quarks, we can follow Ref. [ref] to get the effective interaction with nucleons: [equation] where $f_p$ and $f_n$ are related to $α_q$ through the relation [ref] [equation] and $⟨n|m_qq̅q|n ⟩=m_nf_Tq^n$.
Dark Matter Detection in the Light of Recent Experimental Results · Direct Detection · 1.00
Uses data or values from 1 paper
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Numerically, the $f^(p,n)_Tq$ are given by [ref] f_Tu^p=0.020±0.004, f_Td^p=0.026±0.005, f_Ts^p = 0.118±0.062 f_Tu^n=0.014±0.0043, f_Td^n=0.036±0.008, f_Ts^n = 0.118±0.062 , while $f_Tg^(p,n)$ is defined by [equation] We can approximate $f_p ≈f_n$ since $f_Ts$ is larger than other $f_Tq$'s and $f_Tg$.
Re-Evaluation of the Elastic Scattering of Supersymmetric Dark Matter · Direct Detection · 0.99
Compares with 4 papers
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We are now ready to show that benchmark point A can explain signals reported by CoGeNT [ref] and DAMA [ref] .
Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector · Direct Detection · 0.80
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We are now ready to show that benchmark point A can explain signals reported by CoGeNT [ref] and DAMA [ref] .
First results from DAMA/LIBRA and the combined results with DAMA/NaI · Direct Detection · 0.80
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This cross section is two orders of magnitude lower than the present CDMS and XENON bound [ref] .
First Dark Matter Results from the XENON100 Experiment · Direct Detection · 0.94
Cites as background 5 papers
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Recently, Hooper and Goodenough examined the first two years of Fermi Gamma Ray Space Telescope (FGST) data from the inner $10^∘$ around the Galactic Center [ref] .
Dark Matter Annihilation in The Galactic Center As Seen by the Fermi Gamma Ray Space Telescope · Introduction · 0.81
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The astrophysical and particle physics implications of this finding are discussed in Refs. [ref] .
Leptophilic Dark Matter in Direct Detection Experiments and in the Sun · Introduction · 0.81
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The astrophysical and particle physics implications of this finding are discussed in Refs. [ref] .
Prospects For Identifying Dark Matter With CoGeNT · Introduction · 0.81
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