WebAs a point of reference, the minimum detection limit of the dark-adapted eye is approximately 40 times that (40 million photons/second). A properly designed fluorescence microscope typically yields 10e8 to 10e9 photons per second from the focal volume, or 100 to 1000 photons/pixel/second with the same 1-megapixel sensor.

1– THE MUON ANOMALOUS MAGNETIC MOMENT

WebWe 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 BB¯ events collected by the Belle detector at the KEKB e + e − energy-asymmetric collider at the ϒ(4S) resonance. [Figure not available: see fulltext.] Webexcess is absorption of hidden photon dark matter relics with mass around 2.8 keVand kinetic mixing of about 10−15, which can also explain cooling excesses in horizontal-branch (HB) stars. Such ... nestle technical and production

Projections for Dark Photon Searches at Mu3e - arxiv-vanity.com

WebDec 10, 2011 · The ratio of the probabilities of the two decays is proportional to the bottom quark mass, divided by the electron mass, squared (and then multiplied by 3, because of the properties of the strong nuclear force), giving 3 (m bottom / m electron) 2 = 200,000,000 or so That’s a big number! WebdarkE photoncos( ) c)+2E m = m2 e c 2 (10) Now, we can simplify this equation by adding m2 e c 2 to both sides, and grouping like terms. Doing so gives us: m2 darkc 2 2(m eE … WebThe branching ratio of the dark photon A into different final states of interest as a function of mass M A : A → e + e − (purple), µ + µ − (green), and hadronic final states (orange). Adapted... it\u0027s baby big mouth new huge 101