Dark photon mass gev
WebJan 1, 2016 · the Dark Photon below 1 GeV in the ... No signal is observed, and an exclusion region in the plane of the dark photon mass mA' and mixing parameter ε2 is established. The obtained upper limits on ... WebNov 10, 2014 · A dark photon could be one of these emerging survivors, and it might identify itself through subsequent decay into standard model particles such as an electron and a positron (A ′ → e + e-). Even if the dark photon decay products are other dark sector particles, these could emerge from the dumps and have observable interactions in …
Dark photon mass gev
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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: … WebDark Photon is justified in the simple Higgs structure “SM Higgs doublet + Higgs singlet” (Higgs singlet to break U(1)’ and give a mass to Z’) Z-Z’ kinetic mixing part is cancelled by Z-Z’ mass mixing (which is “induced by kinetic mixing”) at …
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.
WebJul 22, 2024 · One hypothesis is that dark matter consists of particles that interact with each other and with visible matter through a new force carried by a particle called the dark … 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) ...
WebDark 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 …
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. flyright productions seattleWebfa ≈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. ... flyrightstudiosWebNov 29, 2024 · Dark photons have been well motivated as strong candidates for dark force carriers and light dark matter in the sub-GeV mass range. Compared with collider experiments, fixed-target … greenpeace controversyWebDark photon search in the mass range between 1.5 and 3.4 GeV/c Haddadi, Z.; Kalantar-Nayestanaki, N.; Kavatsyuk, M.; Löhner, H.; Messchendorp, J. G.; Tiemens, M.; BESIII … fly right simulator trainingThe experiment has excluded dark photon candidates with mass centered around 24.86 μeV and by using a superconducting qubit to repeatedly measure the same photon. This has enabled a search speed up of over 1,000 as compared to the conventional linear amplification technique. See more The dark photon (also hidden, heavy, para-, or secluded photon) is a hypothetical hidden sector particle, proposed as a force carrier similar to the photon of electromagnetism but potentially connected to See more Adding a sector containing dark photons to the Lagrangian of the Standard Model can be done in a straightforward and minimal way by introducing a new U(1) gauge field. The specifics of the interaction between this new field, potential new particle content (e.g., a See more • Dark radiation – Postulated type of radiation that mediates interactions of dark matter • Fifth force – Speculative fifth fundamental force See more Observations of gravitational effects that cannot be explained by visible matter alone imply the existence of matter which does not or does only very weakly couple to the known forces of … See more Direct conversion A massive dark photon candidate with kinetic mixing strength $${\displaystyle \epsilon }$$ could spontaneously convert to a Standard Model See more fly right overWebMay 27, 2015 · The dark photon candidate mass distribution has been scaled by 1 / 3. (d) Normalized residuals between the signal candidate distribution and the predicted … fly right prison ministryWebEqually interesting parameter space, dark photons are a valid DM candidate! (Recall very light DM need to be produced non-thermally) I Possibilities for generating correct relic … greenpeace cornish boulders