Gamma-ray performance study of the HERD payload

Fariña, Luis; Jouvin, L.; Rico, J.; Mori, N.; Gargano, F.; Formato, V.; Palma, F. de; Pizzolotto, C.; Casaus, J.; Mazziota, Mario Nicola; Wu, X.; Bordas, P.; Gascón, D.; Simons, Daniel J.; Tykhonov, A.; Altomare, Corrado; Silveri, Leandro; Gasparrini, D.

doi:10.22323/1.395.0651

Cited by 7 publications

(6 citation statements)

References 2 publications

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“…Thanks to its unprecedented acceptance, HERD will achieve fundamental and frontier objectives in dark matter search, cosmic ray physics and gamma-ray astronomy. To improve the detector design, several simulation works and tests both in laboratory and with particle beams are ongoing [13][14][15][16][17].…”

Section: Discussionmentioning

confidence: 99%

Cosmic rays and gamma rays with DAMPE and HERD

Perrina¹

2023

Proceedings of Neutrino Oscillation Workshop — PoS(NOW2022)

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Cosmic photons and neutrinos, charged cosmic rays and gravitational waves are all messengers carrying complementary information about properties and processes of the universe. In this contribution I present the cosmic ray and gamma ray measurements performed with the satelliteborne DAMPE (DArk Matter Particle Explorer) detector which is smoothly taking data since December 2015. I also introduce design and prospects of the High Energy cosmic-Radiation Detection facility (HERD) which will be the future calorimeter experiment on board the Chinese Space Station (CSS).

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Section: Discussionmentioning

confidence: 99%

Cosmic rays and gamma rays with DAMPE and HERD

Perrina¹

2023

Proceedings of Neutrino Oscillation Workshop — PoS(NOW2022)

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“…[12] observations of the inner Galactic halo severely excluded the thermal WIMP annihilating directly to photons up to m x ∼ 10 TeV! And the next-generation gamma-ray telescopes -HERD [13], GAMMA-400 [14], CTA [15] -are expected to constrain the diphoton annihilation cross section further.…”

Section: Constraints For All Annihilation Channelsmentioning

confidence: 99%

Updated constraints on WIMP dark matter annihilation by radio observations of M31

Egorov

2022

Phys. Rev. D

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This brief paper generalizes dark matter (DM) constraints recently derived in [A.E.Egorov, Phys. Rev. D 106, 023023 (2022)] by radio observations of M31 to all possible annihilation channels (except the cases of neutrinos and photons as primary annihilation products). All the methodology here exactly repeats that in the mentioned paper, where only two representative and popular annihilation channels -χχ → bb and χχ → τ + τ − -were considered. It is confirmed here, that in the case of light primary annihilation products χχ → τ + τ − , µ + µ − , gg, cc, uu, dd, ss, e + e − , bb (and an arbitrary combination of them) the fiducial (averaged over uncertainties) lower mass limit for the thermal weakly interacting massive particle (WIMP) is confined in the range ≈(40-70) GeV, which is bounded by χχ → bb, τ + τ − cases. Heavier WIMP, which can annihilate to W + W − , Z 0 Z 0 , tt, hh; can not be probed at the level of thermal cross section, unless one assumes the optimistic cases of DM density and magnetic field distributions in M31. In conclusion, mx 40 GeV represents the fiducial channel-independent mass limit for the thermal WIMP with the full uncertainty range estimated to be ≈(20-90) GeV.

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“…HERD will be providing insight on various topics associated to gamma-ray astrophysics [33], probing galactic and extra-galactic origins of diffuse gamma-ray emission while determining the nature of unidentified sources (owing to its wide FOV). Determining possible aspects of the γ-ray diffusion emission, can lead to enhanced understanding of CR intensities by tracing particle interactions of protons and electrons in the ISM.…”

Section: Prospects On Gamma-ray Astrophysicsmentioning

confidence: 99%

Overview of the HERD space mission

Kyratzis¹

2022

Phys. Scr.

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The High Energy cosmic Radiation Detector (HERD) is a prominent space-borne instrument to be installed on-board the Chinese Space Station (CSS) around 2027, resulting from a collaboration among Chinese and European institutions. Primary scientific goals of HERD include: precise measurements of the cosmic ray (CR) energy spectra and mass composition at energies up to few PeV, electron/positron spectra up to tens of TeV, CR anisotropy, gamma ray astronomy and transient studies, along with indirect searches for Dark Matter candidates. The detector is configured to accept incident particles from both its top and four lateral sides. Owing to its pioneering design, more than one order of magnitude increase in geometric acceptance is foreseen, with respect to previous and ongoing experiments. HERD is conceived around a deep (∼ 55 X 0, 3 λI ) 3D cubic calorimeter (CALO), forming an octagonal prism. Fiber Trackers (FiTs) are instrumented on all active sides, with a Plastic Scintillator Detector (PSD) covering the calorimeter and tracker. Ultimately, a Silicon Charge Detector (SCD) envelops the above-stated sub-detectors, while a Transition Radiation Detector (TRD) is instrumented on one of its lateral faces, for energy calibration in the TeV scale. This work illustrates HERD’s latest advancements and scientific objectives along with an overview of upcoming activities.

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Gamma-ray performance study of the HERD payload

Cited by 7 publications

References 2 publications

Cosmic rays and gamma rays with DAMPE and HERD

Cosmic rays and gamma rays with DAMPE and HERD

Updated constraints on WIMP dark matter annihilation by radio observations of M31

Overview of the HERD space mission

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