Weak Interactions of Leptons and Quarks

Abstract

A quantum structuredynamic model of quarks, leptons, weak vector bosons, and Higgs mesons AIP Conf.

Strangeness production in neutron stars

“…The reaction rates of the strangeness production reactions are calculated using standard weak interaction Lagrangian [23]. For the second and third case mentioned above, these rates are, R d→s = C ds p d p u1 p u2 p s dp d dp u1 dp u2 dp s δ(…”

Sharpening Low-Energy, Standard-Model Tests via Correlation Coefficients in NeutronβDecay

“…The induced tensor term is a "second class" current and thus is zero in the SM [2], save for isospin-violating effects engendered by the differing mass and charge of the u and d quarks. In tests of this sort, the CVC hypothesis is tested if SCC are assumed to be zero, or, alternatively, the non-existence of SCC is tested if the CVC hypothesis is assumed to be valid.Historically, the best constraints on the non-existence of SCC and CVC violation are realized in the mass 12 system [3,4]. The CVC hypothesis can be tested through the comparison of the spectral shape correction parameters a ∓ measured in 12 B → 12 C and 12 N → 12 C transitions with the strength of the electromagnetic M1 transition from the analog state of 12 C. This procedure yields a test of the CVC hypothesis at the 10% level [3][4][5].…”

“…Historically, the best constraints on the non-existence of SCC and CVC violation are realized in the mass 12 system [3,4]. The CVC hypothesis can be tested through the comparison of the spectral shape correction parameters a ∓ measured in 12 B → 12 C and 12 N → 12 C transitions with the strength of the electromagnetic M1 transition from the analog state of 12 C. This procedure yields a test of the CVC hypothesis at the 10% level [3][4][5].…”

“…The CVC hypothesis can be tested through the comparison of the spectral shape correction parameters a ∓ measured in 12 B → 12 C and 12 N → 12 C transitions with the strength of the electromagnetic M1 transition from the analog state of 12 C. This procedure yields a test of the CVC hypothesis at the 10% level [3][4][5]. In order to realize a SCC test, the decays of spin-aligned 12 B and 12 N nuclei are studied.…”

Measurement of the branching ratio of the decay Ξ0→Σ+μ−νBatley1, Kalmus2, Lazzeroni3 et al. 2013Physics Letters B5030View full textAdd to dashboardCite

“…A detailed description of the generator of the electron channel can be found in [7]. The generator for the muon channel was modified to include the contribution from pseudo-scalar currents [11], parameterized with the form factor g 3 which, under Partially Conserved Axial Current (PCAC) hypothesis, can be extracted at q = 0 from the GoldbergTreiman relation [12,13]:…”