May 21, 2024 · Nonetheless, matter-antimatter asymmetry is a major motivation for physicists to look for new physics beyond the Standard Model that violate baryon number and lepton number in a CP …

Feb 28, 2019 · Ideally the peaks should be symmetric so my question is what is the main origin of asymmetry in the peaks? My best guess is it is some small misalignment which means one side of …

Aug 26, 2025 · By asserting that it was acceptable to ignore these correlations in the population at times after the initial time, Boltzmann had introduced an element of time asymmetry through the formalism …

Some weeks ago, there was lots of talk about this CDF paper: Evidence for a Mass Dependent Forward-Backward Asymmetry in Top Quark Pair Production where they measured a much higher asymmetry …

Baryon asymmetry refers to the observation that apparently there is matter in the Universe but not much antimatter. We don't see galaxies made of antimatter or observe gamma rays that would be prod...

Jul 24, 2022 · I believe there is nothing to understand at a deeper level. The asymmetry is just an artifact of the algebra (or notation used). Notice that nowadays the "i" is seldom used. It became obsolete. …

Jun 3, 2022 · Because our universe has a CP-violating matter-antimatter asymmetry, we predict that none of the Standard Model fields are exact CP eigenstates. How much of this mixing leaks into the …

Jun 2, 2020 · 14 We all know that the asymmetry between matter and antimatter is a big puzzle in physics. But I don't know why one expects matter-antimatter symmetry in the first place? As in, is …

Jan 30, 2023 · From the figure you can see the two peaks have different heights, which is caused by the particle-hole asymmetry. Is there anybody can explain to me what is the reason for this?

Sep 3, 2021 · Define the baryon asymmetry, which sometimes is called the baryon density, as the baryons to photons ratio $\eta = n_b/n_\gamma$. I found in Ref. 1, published in 2018, that the value …