arXiv subjects

Harald Fritzsch

Publications and source records attributed to Harald Fritzsch.

80 records · Page 5Linked to original sources

arXiv1996

Nucleon Spin and the Mixing of Axial Vector Mesons

It is shown that the QCD anomaly may lead to an abnormal mixing behavior of the axial vector mesons similar to the pseudoscalar mesons. These mixing effects, involving a gluonic axial vector state, generate a non-vanishing strange quark component in the nucleon. They reduce the matrix element of the singlet axial vector in comparison to the value obtained in a naive quark model. The results are in agreement with the data obtained in the polarized lepton-nucleon scattering experiments.

hep-ph↗

arXiv1996

The Quark Mass Problem and CP-Violation

A simple breaking of the subnuclear democracy among the quarks leads to a mixing between the second and the third family, in agreement with observation. Introducing the mixing between the first and the second family, one finds an interesting pattern of maximal CP-violation as well as a complete determination of the elements of the CKM matrix and of the unitarity triangles.

hep-ph↗

arXiv1996

The Problem of Mass and Mass Generation

The mass problem in particle physics for other fields is discussed. While the problem of the nuclear masses has been resolved within the QCD framework, 3 parameters of the ``Standard Model'' are related to the fermion sector. The origin of the ferion masses remains unresolved. We discuss attempts to explain the observed hierarchical features of the mass spectrum by a symmetry. relating the mass eigenvalues to the flavor mixing angles.

hep-ph↗

arXiv1995

A Symmetry Pattern of Maximal CP-Violation and a Determination of the Unitarity Triangle

Within a specific texture of the quark mass matrix the notion of a maximal violation of the $CP$ symmetry can be defined. The experimental constraints from weak decays imply that in reality one is close to the case of maximal $CP$ violation, which vanishes as the mass of the $u$--quark approaches zero. The unitarity triangle of the Cabibbo--Kobayashi--Maskawa matrix elements is determined. It is related to the triangle relating the Cabibbo angle to the quark mass ratios in the complex plane. The angle $α$ describing the $CP$ violation in the decay $B_d \rightarrow π^+ π^-$ is close to 90$^{\circ }$.

hep-ph↗

arXiv1995

The Pattern of Quark Masses and Maximal CP-Violation

A simple breaking of the subnuclear democracy of the quarks leads to a mixing between the secons and the third family, in agreement with observation. Introducing the mixing between the first and the second family, one finds an interesting pattern of maximal CP-violation as well as complete determination of the elements of the CKM matrix and of the unitarity triangle.

hep-ph↗

arXiv1994

Lepton-Quark Masses and Democratic Symmetry

It is shown that the simplest breaking of the subnuclear democracy leads to a successful description of the mixing between the second and third family. In the lepton channel the nu_mu - nu_tau -oscillations are expected to be described by a mixing angle of 2.65 degrees which might be observed soon in neutrino experiments.

hep-ph↗

arXiv1994

The Breaking of Subnuclear Democracy as the Origin of Flavour Mixing

It is shown that the simplest breaking of the subnuclear democracy leads to a successful description of the mixing between the second and third family. In the lepton channel the $ν_{μ} - ν_{τ}$ oscillations are expected to be described by a mixing angle of $2.65^ {\circ }$ which might be observed soon in neutrino experiments.

hep-ph↗

arXiv1994

Flavour Mixing and Fermion Mass Generation as a Result of Symmetry Breaking

It is shown that a simple breaking of the subnuclear democracy leads to a successful description of the mixing between the second and third family. In the lepton channel the $ν_{μ} - ν_{τ}$ oscillations are expected to be described by a mixing angle of $2.65^ {\circ }$ which might be observed soon in neutrino experiments.

hep-ph↗