structure functions A1460G Neutrinos A1460 LeptonsThe concept of Majorana and Dirac massive neutrinos is discussed for the case in which there are several types, or flavors, of leptons. Different varieties of Dirac neutrinos are possible, distinguised by their magnetic moments and anomalous ...
Table 1. Higgs coupling to up-type quarks, down-type quarks and leptons in different types. The superscript i is a generation index. Empty CelluRidRiℓRi Type I Φ2 Φ2 Φ2 Type II Φ2 Φ1 Φ1 Type X Φ2 Φ2 Φ1 Type Y Φ2 Φ1 Φ2 Table 2. ξYX factors corresponding to ...
Mixing in the lepton sector of the SM means that a charged W-boson interacts with mass states of charged leptons e, μ, τ and with neutrino states ν1, ν2, ν3. The boson W+ decays into a lepton α and neutrino i pair with the amplitude Uαi . Equation (1) is evidence that ...
Describe how the concepts of leadership and management differ from each other. If electrons are leptons, and leptons, along with quarks, are fermions, then how are electrons made of quarks? What is the difference between 1n and 2n? Explain the differe...
This paper looks for final states with two lepto√ns of different flavour in proton– proton ( pp) collisions at s = 13 TeV. The invariant mass of the two leptons (m ) is used as the search variable. e-mail: atlas.publications@cern.ch A common extension of the SM is the addition ...
Subsequently, the Universe was reheated to a point where elementary particles (quarks, leptons, and so on) before a gradual decrease in temperature (and density) led to theformation of the first protons and neutrons. A few minutes into the expansion, protons and neutrons combine to form primor...
LeptonsParton modelPsi resonancesHadron-hadron interactionsPair productionParticle productionQuark modelIt is shown how the relative production rates of dileptons and psi's for different beam particles reflect the simple quark structure of the projectile and the target. The importance is emphasized of ...
Each generation includes two quarks and two leptons (charged and neutral), which interact with each other via gauge bosons. In this scheme of the quark-lepton structure of matter, phenomena such as the existence of neutrino masses and their oscillations, and the nature of dark matter and dark...