OBSERVATIONS OF MILKY WAY DWARF SPHEROIDAL GALAXIES WITH THE<i>FERMI</i>-LARGE AREA TELESCOPE DETECTOR AND CONSTRAINTS ON DARK MATTER MODELS

Abdo, A. A.; Ackermann, M.; Ajello, M.; Atwood, W. B.; Baldini, Luca; Ballet, J.; Barbiellini, G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, Pascal; Burnett, T. H.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Caraveo, P. A.; Casandjian, J. M.; Cecchi, C.; Chekhtman, A.; Cheung, C. C.; Chiang, J.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Conrad, J.; Angelis, A. De; Palma, F. de; Digel, S. W.; Silva, E. do Couto e; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Dumora, D.; Farnier, C.; Favuzzi, C.; Fegan, S. J.; Focke, W. B.; Fortin, P.; Frailis, M.; Fukazawa, Yasushi; Fusco, P.; Gargano, F.; Gehrels, N.; Germani, S.; Giebels, B.; Giglietto, N.; Giordano, F.; Glanzman, T.; Godfrey, G.; Grenier, I. A.; Grove, J. E.; Guillemot, L.; Guiriec, S.; Gustafsson, M.; Harding, A. K.; Hays, E.; Horan, D.; Hughes, R. E.; Jackson, M. S.; Jeltema, T.; Jóhannesson, G.; Johnson, A. S.; Johnson, R. P.; Johnson, W. N.; Kamae, T.; Katagiri, H.; Kataoka, J.; Kerr, M.; Knödlseder, J.; Kuss, M.; Landé, J.; Latronico, L.; Lemoine‐Goumard, M.; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Madejski, G. M.; Makeev, A.; Mazziotta, M. N.; McEnery, J. E.; Meurer, C.; Michelson, P. F.; Mitthumsiri, W.; Mizuno, T.; Моисеев, А. А.; Monte, C.; Monzani, M. E.; Moretti, E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Norris, J. P.; Nuss, E.; Ohsugi, T.; Omodei, N.; Orlando, E.; Ormes, J. F.; Paneque, D.; Panetta, J.; Parent, D.; Pelassa, V.; Pepé, M.; Pesce-Rollins, M.; Piron, F.; Porter, T. A.; Profumo, Stefano; Rainò, S.; Rando, R.; Razzano, M.; Reimer, A.; Reimer, O.; Reposeur, T.; Ritz, S.; Rodriguez, A. Y.; Roth, M.; Sadrozinski, H. F-W.; Sander, A.; Parkinson, P. M. Saz; Scargle, Jeffrey D.; Schalk, T.; Sellerholm, A.; Sgrò, C.; Siskind, E. J.; Smith, D. A.; Smith, P. D.; Spandre, G.; Spinelli, P.; Strickman, M. S.; Suson, D. J.; Takahashi, H.; Takahashi, Tadayuki; Tanaka, Takaaki; Thayer, J. B.; Thayer, J. G.; Thompson, D.J.; Tibaldo, L.; Torres, D. F.; Tramacere, A.; Uchiyama, Y.; Usher, T.; Vasileiou, V.; Vilchez, N.; Vitale, V.; Waite, A. P.; Wang, P.; Winer, B. L.; Wood, K. S.; Ylinen, T.; Ziegler, M.; Bullock, James S.; Kaplinghat, Manoj; Martinez, Gregory D.

doi:10.1088/0004-637x/712/1/147

Cited by 276 publications

(365 citation statements)

References 69 publications

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“…This may seem contrary to the common intuition (see e.g., [7,106]) that large rates into the τ + τ − final state are easier to detect in γ's because of the relatively stiff π 0 decay spectrum. In figure 23 we display the continuum γ flux spectra from the models in our set that annihilate into the τ + τ − final state > ∼ 99% of the time (red) and from those that annihilate into the final state bb > ∼ 99% of the time (blue).…”

Section: Jhep01(2011)064contrasting

confidence: 67%

“…The Fermi Gamma Ray Space Telescope (FERMI) reports [5] a slightly stiffer electron spectrum than expected, but with no dramatic features. These are countered by observations of the anti-proton fraction (ratio ofp to p) by PAMELA [6] and various gamma ray measurements by FERMI ( [7][8][9];preliminary results for a larger range of energies were presented in [10]) which reveal no unexpected characteristics.…”

Section: Introductionmentioning

confidence: 94%

“…7 In the case of CRE, however, energy losses play an important role in propagation and there is much greater uncertainty in relating locally measured fluxes to the properties of the sources. We vary the nature of the electron sources in a manner similar to that for the nucleon sources, scanning only the overall normalization and spectral index.…”

Section: Jhep01(2011)064mentioning

confidence: 99%

See 2 more Smart Citations

Cosmic ray anomalies from the MSSM?

Cotta

Conley

Gainer

et al. 2011

J. High Energ. Phys.

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Abstract:The recent positron excess in cosmic rays (CR) observed by the PAMELA satellite may be a signal for dark matter (DM) annihilation. When these measurements are combined with those from FERMI on the total (e + + e − ) flux and from PAMELA itself on thep/p ratio, these and other results are difficult to reconcile with traditional models of DM, including the conventional mSUGRA version of Supersymmetry even if boosts as large as 10 3−4 are allowed. In this paper, we combine the results of a previously obtained scan over a more general 19-parameter subspace of the MSSM with a corresponding scan over astrophysical parameters that describe the propagation of CR. We then ascertain whether or not a good fit to this CR data can be obtained with relatively small boost factors while simultaneously satisfying the additional constraints arising from gamma ray data. We find that a specific subclass of MSSM models where the LSP is mostly pure bino and annihilates almost exclusively into τ pairs comes very close to satisfying these requirements. The lightestτ in this set of models is found to be relatively close in mass to the LSP and is in some cases the nLSP. These models lead to a significant improvement in the overall fit to the data by an amount ∆χ 2 ∼ 1/dof in comparison to the best fit without Supersymmetry while employing boosts ∼ 100. The implications of these models for future experiments are discussed.

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Section: Jhep01(2011)064contrasting

confidence: 67%

Section: Introductionmentioning

confidence: 94%

Section: Jhep01(2011)064mentioning

confidence: 99%

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Cosmic ray anomalies from the MSSM?

Cotta

Conley

Gainer

et al. 2011

J. High Energ. Phys.

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“…Indeed, one have checked that the photons fluxes generated by the subsequent decays of the ZZ ′ final state (case B) or Z ′ Z ′ (the ZZ final state giving weak fluxes, reduced by a factor ≃ sin 2 θ W compared to Zγ) does not exceed the constraints obtained by FERMI collaboration [66,67].…”

Section: Jhep10(2012)123mentioning

confidence: 96%

“…One should also notice that several constraints from the continuum photons should be taken into account, especially the ones coming from the dwarf galaxies measured by FERMI telescope 6 [66,67]. Indeed, one have checked that the photons fluxes generated by the subsequent decays of the ZZ ′ final state (case B) or Z ′ Z ′ (the ZZ final state giving weak fluxes, reduced by a factor ≃ sin 2 θ W compared to Zγ) does not exceed the constraints obtained by FERMI collaboration [66,67].…”

Section: Jhep10(2012)123mentioning

confidence: 99%

Extra U(1) as natural source of a monochromatic gamma ray line

Dudas

Mambrini

Pokorski

et al. 2012

J. High Energ. Phys.

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Extensions of the Standard Model with an extra U ′ (1) abelian group generically generate terms coming from loops of heavy fermions, leading to three gauge boson couplings, in particular Z ′ Zγ. We show that WMAP data constrains the gauge coupling of the group g D to values comparable with the electro-weak ones, rather independently of the mass of Z ′ . Moreover, the model predicts a monochromatic γ-ray line which can fit a 130 GeV signal at the FERMI telescope for natural values of the Chern-Simons terms and a dark matter mass around 144.5 GeV.

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Searching Dark Matter: The Quest for the Missing Mass

Kluck

2015

Production Yield of Muon-Induced Neutrons in Lead

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OBSERVATIONS OF MILKY WAY DWARF SPHEROIDAL GALAXIES WITH THEFERMI-LARGE AREA TELESCOPE DETECTOR AND CONSTRAINTS ON DARK MATTER MODELS

Cited by 276 publications

References 69 publications

Cosmic ray anomalies from the MSSM?

Cosmic ray anomalies from the MSSM?

Extra U(1) as natural source of a monochromatic gamma ray line

Searching Dark Matter: The Quest for the Missing Mass

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