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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 2155 - 304 (z = 0.116) are used to derive upper limits at the 95% C. L. on the strength of the ALP coupling to photons, g(gamma a) < 2.1 x 10(-11) GeV-1 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 couple to the electromagnetic field.
  • 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 2155 - 304 (z = 0.116) are used to derive upper limits at the 95% C. L. on the strength of the ALP coupling to photons, g(gamma a) < 2.1 x 10(-11) GeV-1 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 couple to the electromagnetic field. (en)
Title
  • Constraints on axionlike particles with HESS from the irregularity of the PKS 2155-304 energy spectrum
  • Constraints on axionlike particles with HESS from the irregularity of the PKS 2155-304 energy spectrum (en)
skos:prefLabel
  • Constraints on axionlike particles with HESS from the irregularity of the PKS 2155-304 energy spectrum
  • Constraints on axionlike particles with HESS from the irregularity of the PKS 2155-304 energy spectrum (en)
skos:notation
  • RIV/00216208:11320/13:10191509!RIV14-MSM-11320___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, Z(MSM0021620859)
http://linked.open...iv/cisloPeriodika
  • 10
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
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  • 66780
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  • RIV/00216208:11320/13:10191509
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • cluster; opacity; universe; sn 1987a; tev blazars; multiwavelength observations; gamma-ray flare; bl-lacertae objects; extragalactic background light; intergalactic magnetic-field (en)
http://linked.open.../riv/klicoveSlovo
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  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [A539577A7560]
http://linked.open...i/riv/nazevZdroje
  • Physical Review D - Particles, Fields, Gravitation and Cosmology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 88
http://linked.open...iv/tvurceVysledku
  • Abramowski, A.
  • Acero, F.
  • Aharonian, F.
  • Nedbal, Dalibor
  • Akhperjanian, A. G.
  • Rob, L.
  • Brun, F.
  • Boisson, C.
  • Anton, G.
  • Balenderan, S.
  • Balzer, A.
  • Barnacka, A.
  • Becherini, Y.
  • Bernloehr, K.
  • Birsin, E.
  • Biteau, J.
  • Bolmont, J.
  • Bordas, P.
  • Brucker, J.
  • Brun, P.
  • Bulik, T.
  • Carrigan, S.
  • Casanova, S.
  • Cerruti, M.
  • Chadwick, P. M.
  • Chaves, R. C. G.
  • Cheesebrough, A.
  • Anguener, E.
  • Benkhali, F. Ait
  • Bissaldi, E.
  • Chalme-Calvet, R.
  • Tjus, J. Becker
http://linked.open...ain/vavai/riv/wos
  • 000327214000001
http://linked.open...n/vavai/riv/zamer
issn
  • 1550-7998
number of pages
http://bibframe.org/vocab/doi
  • 10.1103/PhysRevD.88.102003
http://localhost/t...ganizacniJednotka
  • 11320
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