Authors
Attila Abramowski, Fabio Acero, F Aharonian, Faical Ait Benkhali, AG Akhperjanian, E Angüner, Gisela Anton, Shangkari Balenderan, Agnès Balzer, Anna Barnacka, Yvonne Becherini, J Becker Tjus, K Bernlöhr, E Birsin, Elisabetta Bissaldi, Jonathan Biteau, Catherine Boisson, J Bolmont, Pol Bordas, J Brucker, Francois Brun, Pierre Brun, Tomasz Bulik, Svenja Carrigan, Sabrina Casanova, M Cerruti, Paula M Chadwick, R Chalme-Calvet, Ryan CG Chaves, A Cheesebrough, M Chrétien, Sergio Colafrancesco, Gabriele Cologna, Jan Conrad, C Couturier, M Dalton, MK Daniel, ID Davids, B Degrange, C Deil, P Dewilt, Hugh J Dickinson, A Djannati-Ataï, W Domainko, L O’C Drury, G Dubus, K Dutson, J Dyks, M Dyrda, T Edwards, Kathrin Egberts, P Eger, P Espigat, Christian Farnier, S Fegan, F Feinstein, MV Fernandes, D Fernandez, A Fiasson, G Fontaine, A Foerster, M Fuessling, M Gajdus, YA Gallant, T Garrigoux, H Gast, B Giebels, JF Glicenstein, D Goering, M-H Grondin, M Grudzińska, S Haeffner, JD Hague, J Hahn, J Harris, G Heinzelmann, G Henri, G Hermann, O Hervet, A Hillert, James Anthony Hinton, W Hofmann, P Hofverberg, Markus Holler, D Horns, A Jacholkowska, C Jahn, Marek Jamrozy, M Janiak, F Jankowsky, I Jung, MA Kastendieck, K Katarzyński, U Katz, S Kaufmann, B Khelifi, M Kieffer, S Klepser, D Klochkov, W Kluźniak, T Kneiske, D Kolitzus, Nu Komin, K Kosack, S Krakau, F Krayzel, PP Krueger, H Laffon, G Lamanna, J Lefaucheur, M Lemoine-Goumard, J-P Lenain, Dirk Lennarz, T Lohse, A Lopatin, C-C Lu, V Marandon, Alexandre Marcowith, Ramin Marx, G Maurin, N Maxted, M Mayer, TJL McComb, MC Medina, J Mehault, U Menzler, M Meyer, R Moderski, M Mohamed, Emmanuel Moulin, T Murach, CL Naumann, M De Naurois, D Nedbal, J Niemiec, SJ Nolan, L Oakes, S Ohm, Emma de Ona Wilhelmi, B Opitz, Michał Ostrowski, I Oya, M Panter, RD Parsons, M Paz Arribas, NW Pekeur, G Pelletier, J Perez, P-O Petrucci, B Peyaud
Publication date
2013/11/15
Journal
Physical Review D—Particles, Fields, Gravitation, and Cosmology
Volume
88
Issue
10
Pages
102003
Publisher
American Physical Society
Description
Axionlike particles (ALPs) are hypothetical light (sub-eV) bosons predicted in some extensions of the Standard Model of particle physics. In astrophysical environments comprising high-energy gamma rays and turbulent magnetic fields, the existence of ALPs can modify the energy spectrum of the gamma rays for a sufficiently large coupling between ALPs and photons. This modification would take the form of an irregular behavior of the energy spectrum in a limited energy range. Data from the H.E.S.S. observations of the distant BL Lac object PKS () are used to derive upper limits at the 95% C.L. on the strength of the ALP coupling to photons, for an ALP mass between 15 and 60 neV. The results depend on assumptions on the magnetic field around the source, which are chosen conservatively. The derived constraints apply to both light pseudoscalar and scalar bosons that …
Scholar articles
A Abramowski, F Acero, F Aharonian, F Ait Benkhali… - Physical Review D—Particles, Fields, Gravitation, and …, 2013