Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S.

A. Abramowski; F. Acero; F. Aharonian; A. G. Akhperjanian; G. Anton; A. Barnacka; U. Barres De Almeida; A. R. Bazer-Bachi; Y. Becherini; J. Becker; B. Behera; K. Bernlöhr; A. Bochow; C. Boisson; J. Bolmont; P. Bordas; V. Borrel; J. Brucker; F. Brun; P. Brun; T. Bulik; I. Büsching; S. Carrigan; S. Casanova; M. Cerruti; P. M. Chadwick; A. Charbonnier; R. C G Chaves; A. Cheesebrough; L. M. Chounet; A. C. Clapson; G. Coignet; J. Conrad; M. Dalton; M. K. Daniel; I. D. Davids; B. Degrange; C. Deil; H. J. Dickinson; A. Djannati-Ataï; W. Domainko; L. O. Drury; F. Dubois; G. Dubus; J. Dyks; M. Dyrda; K. Egberts; P. Eger; P. Espigat; L. Fallon; C. Farnier; S. Fegan; F. Feinstein; M. V. Fernandes; A. Fiasson; G. Fontaine; A. Förster; M. Füßling; Y. A. Gallant; H. Gast; L. Gérard; D. Gerbig; B. Giebels; J. F. Glicenstein; B. Glück; P. Goret; D. Göring; J. D. Hague; D. Hampf; M. Hauser; S. Heinz; G. Heinzelmann; G. Henri; G. Hermann; J. A. Hinton; A. Hoffmann; W. Hofmann; P. Hofverberg; D. Horns; A. Jacholkowska; O. C. De Jager; C. Jahn; M. Jamrozy; I. Jung; M. A. Kastendieck; K. Katarzyński; U. Katz; S. Kaufmann; D. Keogh; M. Kerschhaggl; D. Khangulyan; B. Khélifi; D. Klochkov; W. Klüniak; T. Kneiske; Nu Komin; K. Kosack; R. Kossakowski; H. Laffon; G. Lamanna; D. Lennarz; T. Lohse; A. Lopatin; C. C. Lu; V. Marandon; A. Marcowith; J. Masbou; D. Maurin; N. Maxted; T. J L McComb; M. C. Medina; J. Méhault; R. Moderski; E. Moulin; C. L. Naumann; M. Naumann-Godo; M. De Naurois; D. Nedbal; D. Nekrassov; N. Nguyen; B. Nicholas; J. Niemiec; S. J. Nolan; S. Ohm; J. F. Olive; E. De Oña Wilhelmi; B. Opitz; M. Ostrowski; M. Panter; M. Paz Arribas; G. Pedaletti; G. Pelletier; P. O. Petrucci; S. Pita; G. Pühlhofer; M. Punch; A. Quirrenbach; M. Raue; S. M. Rayner; A. Reimer; O. Reimer; M. Renaud; R. De Los Reyes; F. Rieger; J. Ripken; L. Rob; S. Rosier-Lees; G. Rowell; B. Rudak; C. B. Rulten; J. Ruppel; F. Ryde; V. Sahakian; A. Santangelo; R. Schlickeiser; F. M. Schöck; A. Schönwald; U. Schwanke; S. Schwarzburg; S. Schwemmer; A. Shalchi; M. Sikora; J. L. Skilton; H. Sol; G. Spengler; A. Stawarz; R. Steenkamp; C. Stegmann; F. Stinzing; I. Sushch; A. Szostek; J. P. Tavernet; R. Terrier; O. Tibolla; M. Tluczykont; K. Valerius; C. Van Eldik; G. Vasileiadis; C. Venter; J. P. Vialle; A. Viana; P. Vincent; M. Vivier; H. J. Völk; F. Volpe; S. Vorobiov; M. Vorster; S. J. Wagner; M. Ward; A. Wierzcholska; A. Zajczyk; A. A. Zdziarski; A. Zech; H. S. Zechlin

doi:10.1103/PhysRevLett.106.161301

Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S.

A. Abramowski, F. Acero, F. Aharonian, A. G. Akhperjanian, G. Anton, A. Barnacka, U. Barres De Almeida, A. R. Bazer-Bachi, Y. Becherini, J. Becker, B. Behera, K. Bernlöhr, A. Bochow, C. Boisson, J. Bolmont, P. Bordas, V. Borrel, J. Brucker, F. Brun, P. BrunT. Bulik, I. Büsching, S. Carrigan, S. Casanova, M. Cerruti, P. M. Chadwick, A. Charbonnier, R. C G Chaves, A. Cheesebrough, L. M. Chounet, A. C. Clapson, G. Coignet, J. Conrad, M. Dalton, M. K. Daniel, I. D. Davids, B. Degrange, C. Deil, H. J. Dickinson, A. Djannati-Ataï, W. Domainko, L. O. Drury, F. Dubois, G. Dubus, J. Dyks, M. Dyrda, K. Egberts, P. Eger, P. Espigat, L. Fallon, C. Farnier, S. Fegan, F. Feinstein, M. V. Fernandes, A. Fiasson, G. Fontaine, A. Förster, M. Füßling, Y. A. Gallant, H. Gast, L. Gérard, D. Gerbig, B. Giebels, J. F. Glicenstein, B. Glück, P. Goret, D. Göring, J. D. Hague, D. Hampf, M. Hauser, S. Heinz, G. Heinzelmann, G. Henri, G. Hermann, J. A. Hinton, A. Hoffmann, W. Hofmann, P. Hofverberg, D. Horns, A. Jacholkowska, O. C. De Jager, C. Jahn, M. Jamrozy, I. Jung, M. A. Kastendieck, K. Katarzyński, U. Katz, S. Kaufmann, D. Keogh, M. Kerschhaggl, D. Khangulyan, B. Khélifi, D. Klochkov, W. Klüniak, T. Kneiske, Nu Komin, K. Kosack, R. Kossakowski, H. Laffon, G. Lamanna, D. Lennarz, T. Lohse, A. Lopatin, C. C. Lu, V. Marandon, A. Marcowith, J. Masbou, D. Maurin, N. Maxted, T. J L McComb, M. C. Medina, J. Méhault, R. Moderski, E. Moulin, C. L. Naumann, M. Naumann-Godo, M. De Naurois, D. Nedbal, D. Nekrassov, N. Nguyen, B. Nicholas, J. Niemiec, S. J. Nolan, S. Ohm, J. F. Olive, E. De Oña Wilhelmi, B. Opitz, M. Ostrowski, M. Panter, M. Paz Arribas, G. Pedaletti, G. Pelletier, P. O. Petrucci, S. Pita, G. Pühlhofer, M. Punch, A. Quirrenbach, M. Raue, S. M. Rayner, A. Reimer, O. Reimer, M. Renaud, R. De Los Reyes, F. Rieger, J. Ripken, L. Rob, S. Rosier-Lees, G. Rowell, B. Rudak, C. B. Rulten, J. Ruppel, F. Ryde, V. Sahakian, A. Santangelo, R. Schlickeiser, F. M. Schöck, A. Schönwald, U. Schwanke, S. Schwarzburg, S. Schwemmer, A. Shalchi, M. Sikora, J. L. Skilton, H. Sol, G. Spengler, A. Stawarz, R. Steenkamp, C. Stegmann, F. Stinzing, I. Sushch, A. Szostek, J. P. Tavernet, R. Terrier, O. Tibolla, M. Tluczykont, K. Valerius, C. Van Eldik, G. Vasileiadis, C. Venter, J. P. Vialle, A. Viana, P. Vincent, M. Vivier, H. J. Völk, F. Volpe, S. Vorobiov, M. Vorster, S. J. Wagner, M. Ward, A. Wierzcholska, A. Zajczyk, A. A. Zdziarski, A. Zech, H. S. Zechlin

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

241 Scopus citations

Abstract

A search for a very-high-energy (VHE; 100GeV) γ-ray signal from self-annihilating particle dark matter (DM) is performed towards a region of projected distance r∼45-150pc from the Galactic center. The background-subtracted γ-ray spectrum measured with the High Energy Stereoscopic System (H.E.S.S.) γ-ray instrument in the energy range between 300-GeV and 30-TeV shows no hint of a residual γ-ray flux. Assuming conventional Navarro-Frenk-White and Einasto density profiles, limits are derived on the velocity-weighted annihilation cross section σv as a function of the DM particle mass. These are among the best reported so far for this energy range and in particular differ only little between the chosen density profile parametrizations. In particular, for the DM particle mass of ∼1TeV, values for σ above 3×10^-25cm3s^-1 are excluded for the Einasto density profile.

Original language	English (US)
Article number	161301
Journal	Physical review letters
Volume	106
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.106.161301
State	Published - Apr 18 2011

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Abramowski, A., Acero, F., Aharonian, F., Akhperjanian, A. G., Anton, G., Barnacka, A., Barres De Almeida, U., Bazer-Bachi, A. R., Becherini, Y., Becker, J., Behera, B., Bernlöhr, K., Bochow, A., Boisson, C., Bolmont, J., Bordas, P., Borrel, V., Brucker, J., Brun, F., ... Zechlin, H. S. (2011). Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S. Physical review letters, 106(16), Article 161301. https://doi.org/10.1103/PhysRevLett.106.161301

Abramowski, A, Acero, F, Aharonian, F, Akhperjanian, AG, Anton, G, Barnacka, A, Barres De Almeida, U, Bazer-Bachi, AR, Becherini, Y, Becker, J, Behera, B, Bernlöhr, K, Bochow, A, Boisson, C, Bolmont, J, Bordas, P, Borrel, V, Brucker, J, Brun, F, Brun, P, Bulik, T, Büsching, I, Carrigan, S, Casanova, S, Cerruti, M, Chadwick, PM, Charbonnier, A, Chaves, RCG, Cheesebrough, A, Chounet, LM, Clapson, AC, Coignet, G, Conrad, J, Dalton, M, Daniel, MK, Davids, ID, Degrange, B, Deil, C, Dickinson, HJ, Djannati-Ataï, A, Domainko, W, Drury, LO, Dubois, F, Dubus, G, Dyks, J, Dyrda, M, Egberts, K, Eger, P, Espigat, P, Fallon, L, Farnier, C, Fegan, S, Feinstein, F, Fernandes, MV, Fiasson, A, Fontaine, G, Förster, A, Füßling, M, Gallant, YA, Gast, H, Gérard, L, Gerbig, D, Giebels, B, Glicenstein, JF, Glück, B, Goret, P, Göring, D, Hague, JD, Hampf, D, Hauser, M, Heinz, S, Heinzelmann, G, Henri, G, Hermann, G, Hinton, JA, Hoffmann, A, Hofmann, W, Hofverberg, P, Horns, D, Jacholkowska, A, De Jager, OC, Jahn, C, Jamrozy, M, Jung, I, Kastendieck, MA, Katarzyński, K, Katz, U, Kaufmann, S, Keogh, D, Kerschhaggl, M, Khangulyan, D, Khélifi, B, Klochkov, D, Klüniak, W, Kneiske, T, Komin, N, Kosack, K, Kossakowski, R, Laffon, H, Lamanna, G, Lennarz, D, Lohse, T, Lopatin, A, Lu, CC, Marandon, V, Marcowith, A, Masbou, J, Maurin, D, Maxted, N, McComb, TJL, Medina, MC, Méhault, J, Moderski, R, Moulin, E, Naumann, CL, Naumann-Godo, M, De Naurois, M, Nedbal, D, Nekrassov, D, Nguyen, N, Nicholas, B, Niemiec, J, Nolan, SJ, Ohm, S, Olive, JF, De Oña Wilhelmi, E, Opitz, B, Ostrowski, M, Panter, M, Paz Arribas, M, Pedaletti, G, Pelletier, G, Petrucci, PO, Pita, S, Pühlhofer, G, Punch, M, Quirrenbach, A, Raue, M, Rayner, SM, Reimer, A, Reimer, O, Renaud, M, De Los Reyes, R, Rieger, F, Ripken, J, Rob, L, Rosier-Lees, S, Rowell, G, Rudak, B, Rulten, CB, Ruppel, J, Ryde, F, Sahakian, V, Santangelo, A, Schlickeiser, R, Schöck, FM, Schönwald, A, Schwanke, U, Schwarzburg, S, Schwemmer, S, Shalchi, A, Sikora, M, Skilton, JL, Sol, H, Spengler, G, Stawarz, A, Steenkamp, R, Stegmann, C, Stinzing, F, Sushch, I, Szostek, A, Tavernet, JP, Terrier, R, Tibolla, O, Tluczykont, M, Valerius, K, Van Eldik, C, Vasileiadis, G, Venter, C, Vialle, JP, Viana, A, Vincent, P, Vivier, M, Völk, HJ, Volpe, F, Vorobiov, S, Vorster, M, Wagner, SJ, Ward, M, Wierzcholska, A, Zajczyk, A, Zdziarski, AA, Zech, A & Zechlin, HS 2011, 'Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S.', Physical review letters, vol. 106, no. 16, 161301. https://doi.org/10.1103/PhysRevLett.106.161301

@article{30b5f4774c454fe5b81b7c62ffcaef07,

title = "Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S.",

abstract = "A search for a very-high-energy (VHE; 100GeV) γ-ray signal from self-annihilating particle dark matter (DM) is performed towards a region of projected distance r∼45-150pc from the Galactic center. The background-subtracted γ-ray spectrum measured with the High Energy Stereoscopic System (H.E.S.S.) γ-ray instrument in the energy range between 300-GeV and 30-TeV shows no hint of a residual γ-ray flux. Assuming conventional Navarro-Frenk-White and Einasto density profiles, limits are derived on the velocity-weighted annihilation cross section σv as a function of the DM particle mass. These are among the best reported so far for this energy range and in particular differ only little between the chosen density profile parametrizations. In particular, for the DM particle mass of ∼1TeV, values for σ above 3×10-25cm3s-1 are excluded for the Einasto density profile.",

author = "A. Abramowski and F. Acero and F. Aharonian and Akhperjanian, {A. G.} and G. Anton and A. Barnacka and {Barres De Almeida}, U. and Bazer-Bachi, {A. R.} and Y. Becherini and J. Becker and B. Behera and K. Bernl{\"o}hr and A. Bochow and C. Boisson and J. Bolmont and P. Bordas and V. Borrel and J. Brucker and F. Brun and P. Brun and T. Bulik and I. B{\"u}sching and S. Carrigan and S. Casanova and M. Cerruti and Chadwick, {P. M.} and A. Charbonnier and Chaves, {R. C G} and A. Cheesebrough and Chounet, {L. M.} and Clapson, {A. C.} and G. Coignet and J. Conrad and M. Dalton and Daniel, {M. K.} and Davids, {I. D.} and B. Degrange and C. Deil and Dickinson, {H. J.} and A. Djannati-Ata{\"i} and W. Domainko and Drury, {L. O.} and F. Dubois and G. Dubus and J. Dyks and M. Dyrda and K. Egberts and P. Eger and P. Espigat and L. Fallon and C. Farnier and S. Fegan and F. Feinstein and Fernandes, {M. V.} and A. Fiasson and G. Fontaine and A. F{\"o}rster and M. F{\"u}{\ss}ling and Gallant, {Y. A.} and H. Gast and L. G{\'e}rard and D. Gerbig and B. Giebels and Glicenstein, {J. F.} and B. Gl{\"u}ck and P. Goret and D. G{\"o}ring and Hague, {J. D.} and D. Hampf and M. Hauser and S. Heinz and G. Heinzelmann and G. Henri and G. Hermann and Hinton, {J. A.} and A. Hoffmann and W. Hofmann and P. Hofverberg and D. Horns and A. Jacholkowska and {De Jager}, {O. C.} and C. Jahn and M. Jamrozy and I. Jung and Kastendieck, {M. A.} and K. Katarzy{\'n}ski and U. Katz and S. Kaufmann and D. Keogh and M. Kerschhaggl and D. Khangulyan and B. Kh{\'e}lifi and D. Klochkov and W. Kl{\"u}niak and T. Kneiske and Nu Komin and K. Kosack and R. Kossakowski and H. Laffon and G. Lamanna and D. Lennarz and T. Lohse and A. Lopatin and Lu, {C. C.} and V. Marandon and A. Marcowith and J. Masbou and D. Maurin and N. Maxted and McComb, {T. J L} and Medina, {M. C.} and J. M{\'e}hault and R. Moderski and E. Moulin and Naumann, {C. L.} and M. Naumann-Godo and {De Naurois}, M. and D. Nedbal and D. Nekrassov and N. Nguyen and B. Nicholas and J. Niemiec and Nolan, {S. J.} and S. Ohm and Olive, {J. F.} and {De O{\~n}a Wilhelmi}, E. and B. Opitz and M. Ostrowski and M. Panter and {Paz Arribas}, M. and G. Pedaletti and G. Pelletier and Petrucci, {P. O.} and S. Pita and G. P{\"u}hlhofer and M. Punch and A. Quirrenbach and M. Raue and Rayner, {S. M.} and A. Reimer and O. Reimer and M. Renaud and {De Los Reyes}, R. and F. Rieger and J. Ripken and L. Rob and S. Rosier-Lees and G. Rowell and B. Rudak and Rulten, {C. B.} and J. Ruppel and F. Ryde and V. Sahakian and A. Santangelo and R. Schlickeiser and Sch{\"o}ck, {F. M.} and A. Sch{\"o}nwald and U. Schwanke and S. Schwarzburg and S. Schwemmer and A. Shalchi and M. Sikora and Skilton, {J. L.} and H. Sol and G. Spengler and A. Stawarz and R. Steenkamp and C. Stegmann and F. Stinzing and I. Sushch and A. Szostek and Tavernet, {J. P.} and R. Terrier and O. Tibolla and M. Tluczykont and K. Valerius and {Van Eldik}, C. and G. Vasileiadis and C. Venter and Vialle, {J. P.} and A. Viana and P. Vincent and M. Vivier and V{\"o}lk, {H. J.} and F. Volpe and S. Vorobiov and M. Vorster and Wagner, {S. J.} and M. Ward and A. Wierzcholska and A. Zajczyk and Zdziarski, {A. A.} and A. Zech and Zechlin, {H. S.}",

year = "2011",

month = apr,

day = "18",

doi = "10.1103/PhysRevLett.106.161301",

language = "English (US)",

volume = "106",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "16",

}

TY - JOUR

T1 - Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S.

AU - Abramowski, A.

AU - Acero, F.

AU - Aharonian, F.

AU - Akhperjanian, A. G.

AU - Anton, G.

AU - Barnacka, A.

AU - Barres De Almeida, U.

AU - Bazer-Bachi, A. R.

AU - Becherini, Y.

AU - Becker, J.

AU - Behera, B.

AU - Bernlöhr, K.

AU - Bochow, A.

AU - Boisson, C.

AU - Bolmont, J.

AU - Bordas, P.

AU - Borrel, V.

AU - Brucker, J.

AU - Brun, F.

AU - Brun, P.

AU - Bulik, T.

AU - Büsching, I.

AU - Carrigan, S.

AU - Casanova, S.

AU - Cerruti, M.

AU - Chadwick, P. M.

AU - Charbonnier, A.

AU - Chaves, R. C G

AU - Cheesebrough, A.

AU - Chounet, L. M.

AU - Clapson, A. C.

AU - Coignet, G.

AU - Conrad, J.

AU - Dalton, M.

AU - Daniel, M. K.

AU - Davids, I. D.

AU - Degrange, B.

AU - Deil, C.

AU - Dickinson, H. J.

AU - Djannati-Ataï, A.

AU - Domainko, W.

AU - Drury, L. O.

AU - Dubois, F.

AU - Dubus, G.

AU - Dyks, J.

AU - Dyrda, M.

AU - Egberts, K.

AU - Eger, P.

AU - Espigat, P.

AU - Fallon, L.

AU - Farnier, C.

AU - Fegan, S.

AU - Feinstein, F.

AU - Fernandes, M. V.

AU - Fiasson, A.

AU - Fontaine, G.

AU - Förster, A.

AU - Füßling, M.

AU - Gallant, Y. A.

AU - Gast, H.

AU - Gérard, L.

AU - Gerbig, D.

AU - Giebels, B.

AU - Glicenstein, J. F.

AU - Glück, B.

AU - Goret, P.

AU - Göring, D.

AU - Hague, J. D.

AU - Hampf, D.

AU - Hauser, M.

AU - Heinz, S.

AU - Heinzelmann, G.

AU - Henri, G.

AU - Hermann, G.

AU - Hinton, J. A.

AU - Hoffmann, A.

AU - Hofmann, W.

AU - Hofverberg, P.

AU - Horns, D.

AU - Jacholkowska, A.

AU - De Jager, O. C.

AU - Jahn, C.

AU - Jamrozy, M.

AU - Jung, I.

AU - Kastendieck, M. A.

AU - Katarzyński, K.

AU - Katz, U.

AU - Kaufmann, S.

AU - Keogh, D.

AU - Kerschhaggl, M.

AU - Khangulyan, D.

AU - Khélifi, B.

AU - Klochkov, D.

AU - Klüniak, W.

AU - Kneiske, T.

AU - Komin, Nu

AU - Kosack, K.

AU - Kossakowski, R.

AU - Laffon, H.

AU - Lamanna, G.

AU - Lennarz, D.

AU - Lohse, T.

AU - Lopatin, A.

AU - Lu, C. C.

AU - Marandon, V.

AU - Marcowith, A.

AU - Masbou, J.

AU - Maurin, D.

AU - Maxted, N.

AU - McComb, T. J L

AU - Medina, M. C.

AU - Méhault, J.

AU - Moderski, R.

AU - Moulin, E.

AU - Naumann, C. L.

AU - Naumann-Godo, M.

AU - De Naurois, M.

AU - Nedbal, D.

AU - Nekrassov, D.

AU - Nguyen, N.

AU - Nicholas, B.

AU - Niemiec, J.

AU - Nolan, S. J.

AU - Ohm, S.

AU - Olive, J. F.

AU - De Oña Wilhelmi, E.

AU - Opitz, B.

AU - Ostrowski, M.

AU - Panter, M.

AU - Paz Arribas, M.

AU - Pedaletti, G.

AU - Pelletier, G.

AU - Petrucci, P. O.

AU - Pita, S.

AU - Pühlhofer, G.

AU - Punch, M.

AU - Quirrenbach, A.

AU - Raue, M.

AU - Rayner, S. M.

AU - Reimer, A.

AU - Reimer, O.

AU - Renaud, M.

AU - De Los Reyes, R.

AU - Rieger, F.

AU - Ripken, J.

AU - Rob, L.

AU - Rosier-Lees, S.

AU - Rowell, G.

AU - Rudak, B.

AU - Rulten, C. B.

AU - Ruppel, J.

AU - Ryde, F.

AU - Sahakian, V.

AU - Santangelo, A.

AU - Schlickeiser, R.

AU - Schöck, F. M.

AU - Schönwald, A.

AU - Schwanke, U.

AU - Schwarzburg, S.

AU - Schwemmer, S.

AU - Shalchi, A.

AU - Sikora, M.

AU - Skilton, J. L.

AU - Sol, H.

AU - Spengler, G.

AU - Stawarz, A.

AU - Steenkamp, R.

AU - Stegmann, C.

AU - Stinzing, F.

AU - Sushch, I.

AU - Szostek, A.

AU - Tavernet, J. P.

AU - Terrier, R.

AU - Tibolla, O.

AU - Tluczykont, M.

AU - Valerius, K.

AU - Van Eldik, C.

AU - Vasileiadis, G.

AU - Venter, C.

AU - Vialle, J. P.

AU - Viana, A.

AU - Vincent, P.

AU - Vivier, M.

AU - Völk, H. J.

AU - Volpe, F.

AU - Vorobiov, S.

AU - Vorster, M.

AU - Wagner, S. J.

AU - Ward, M.

AU - Wierzcholska, A.

AU - Zajczyk, A.

AU - Zdziarski, A. A.

AU - Zech, A.

AU - Zechlin, H. S.

PY - 2011/4/18

Y1 - 2011/4/18

N2 - A search for a very-high-energy (VHE; 100GeV) γ-ray signal from self-annihilating particle dark matter (DM) is performed towards a region of projected distance r∼45-150pc from the Galactic center. The background-subtracted γ-ray spectrum measured with the High Energy Stereoscopic System (H.E.S.S.) γ-ray instrument in the energy range between 300-GeV and 30-TeV shows no hint of a residual γ-ray flux. Assuming conventional Navarro-Frenk-White and Einasto density profiles, limits are derived on the velocity-weighted annihilation cross section σv as a function of the DM particle mass. These are among the best reported so far for this energy range and in particular differ only little between the chosen density profile parametrizations. In particular, for the DM particle mass of ∼1TeV, values for σ above 3×10-25cm3s-1 are excluded for the Einasto density profile.

AB - A search for a very-high-energy (VHE; 100GeV) γ-ray signal from self-annihilating particle dark matter (DM) is performed towards a region of projected distance r∼45-150pc from the Galactic center. The background-subtracted γ-ray spectrum measured with the High Energy Stereoscopic System (H.E.S.S.) γ-ray instrument in the energy range between 300-GeV and 30-TeV shows no hint of a residual γ-ray flux. Assuming conventional Navarro-Frenk-White and Einasto density profiles, limits are derived on the velocity-weighted annihilation cross section σv as a function of the DM particle mass. These are among the best reported so far for this energy range and in particular differ only little between the chosen density profile parametrizations. In particular, for the DM particle mass of ∼1TeV, values for σ above 3×10-25cm3s-1 are excluded for the Einasto density profile.

UR - http://www.scopus.com/inward/record.url?scp=79960759935&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevLett.106.161301

DO - 10.1103/PhysRevLett.106.161301

M3 - Article

C2 - 21599352

AN - SCOPUS:79960759935

SN - 0031-9007

VL - 106

JO - Physical review letters

JF - Physical review letters

IS - 16

M1 - 161301

ER -

Search for a dark matter annihilation signal from the galactic center halo with H.E.S.S.

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