Dark photon mass gev
Web2 Direct detection of sub-GeV dark matter8 2.1 Scattering rate9 2.2 Interaction strength10 2.3 Kinematics11 2.4 Direct detection with bound systems13 3 Electron excitations15 3.1 Atomic systems17 3.2 Solid state systems20 4 Phonon excitations23 4.1 Introduction to phonons24 4.2 Dynamic structure factor28 4.3 Dark photon couplings31 References 34 WebMay 7, 2024 · Dark Photon and Muon g-2 Inspired Inelastic Dark Matter Models at the High-Energy Intensity Frontier Phys Rev Lett. 2024 May 7;126 (18):181801. doi: …
Dark photon mass gev
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WebTo broaden the exploration of this predicted dark matter particle, a second search was carried out considering some heavy Higgs bosons with masses ranging from 400 GeV to 3 TeV, produced either in gluon-gluon Fusion (ggF) or in Vector-Boson-Fusion (VBF) modes. WebNov 10, 2024 · In conclusion, we perform a search for a dark photon in the mass range between 1.5 and 3.4 GeV/c 2, where we do not observe a significant signal. We set …
Webfa ≈1018 GeV. Our intent is to simply identify a part of parameter space where this model is self-consistent and achieves our desired goal. A broader analysis may reveal ... abundance, giving the dark photon a plasma mass in the early Universe. This plasma mass suppresses the cosmo-logical tachyonic instability, preserving axion dark matter. ... WebApr 8, 2024 · In this study, we investigate axion-like particle (ALP), dark photon (DP), and chameleon dark energy (DE) models for a solution to the -boson mass excess. We find that the ALP and DP interpretations have been significantly narrowed down by global electroweak fits.
WebMar 1, 2024 · The measured relic abundance sets an upper limit on the spinless photon mass of 500 GeV, which decreases to almost 200 GeV if the Higgs boson is light. ... neutralino-like dark matter of a mass of about 130 GeV giving rise to a 130 GeV photon line; ii) an annihilation cross section of or larger than 10{sup −27} cm{sup 3} s{sup −1}; iii) ... WebJul 16, 2024 · For models of scalar and fermionic light thermal dark matter production via dark photon, we present the constrains on the dimensionless dark matter parameter as function of the DM mass at BESIII and future STCF, conventionally assuming the dark coupling constant and .
WebApr 20, 2024 · We present a search for the dark photon A′ in the B 0 → A′A′ decays, where A′ subsequently decays to e + e −, μ + μ −, and π + π −.The search is performed by analyzing 772 × 10 6 \( B\overline{B} \) events collected by the Belle detector at the KEKB e + e − energy-asymmetric collider at the ϒ(4S) resonance.No signal is found in the dark …
WebMay 5, 2015 · Abstract. A sample of 1.69 × 10 7 fully reconstructed π 0 → γe + e – decay candidates collected by the NA48/2 experiment at CERN in 2003–2004 is analyzed to search for the dark photon (A') production in the π0→γA' decay followed by the prompt A' → e + e – decay. No signal is observed, and an exclusion region in the plane of the dark … fresenius dialysis palm harborWebApr 1, 2024 · We derive a conservative lower-limit of the dark photon mass around 8.5 MeV from the current Planck data if the mixing between the dark photon and ordinary photon is larger than O (10 −9 ). We also find that the future CMB stage-IV experiments can probe up to 17 MeV dark photon. Download to read the full article text fresenius dialysis ottawa ilWebDark photon limits Data, plots and code for constraints on axions, axion-like particles, and dark photons ... Tests of coulomb law/photon mass. Atomic spectroscopy: limit, reference; AFM limit, reference; ... They also … fatal:null check starsector.log for more infoWebDec 1, 2024 · Dark Matter 27. Dark Matter RevisedAugust2024byL.Baudis(ZurichU.)andS.Profumo(UCSantaCruz). ... the existence of DM is inferred directly using tracers of mass enclosed within a certain radius such as stellar velocity dispersion, rotation curves in axisymmetric systems, the virial theorem, ... DM/1 … fatal not a valid object name headWebIn section III, we discuss the production and decays of dark photon at e + e − colliders. In section IV, a detailed collider simulation with dark photon mass ranging from 20 GeV to … fatal: not in a git directory git configWeb2 days ago · Center: Binned number of events in a Ge target with a kg-yr exposure, assuming a DM mass of GeV and a heavy mediator. ... Projected constraints on the dark matter interaction cross section in the dark photon mediator model from a few anisotropic crystal targets. Solid curves are the 95% C.L. constraints (3 events), and dashed curves … fresenius dialysis on hoover rdWebMay 31, 2024 · mA0.1 " A new force mediated by dark photons has been a subject of considerable interest in high energy physics. The existence of the dark photon [22-24], associated to a hidden gauge interaction, has been the subject of many investigations, both theoretical and experimental. fatalny romans filmweb