119122771
Quark/lepton mass and mixing in $S_3$ invariant model and CP-violation of neutrino
Weak bases of flavors (u, c), (d,s), (e, \mu), (\nu_e,\nu_\mu) are assumed as the S_3 doublet and t, b, \tau, {\nu_\tau} are the S_3 singlet and further there are assumed S_3 doublet Higgs (H_1, H_2) and S_3 singlet Higgs H_S. We suggest an S_3 invariant model in which the Yukawa interactions constructed from these S_3 doublets and singlets are S_3 invariant. In this model, we can explain the quark sector mass hierarchy, quark mixing V_{CKM} and measure of CP violation naturally. In the leptonic sector, neutrino masses are assumed to be constructed through the see-saw mechanism from the Majorana mass. The tri-bimaximal-like character of neutrino mixing V_{MNS} can be explained dynamically without any other symmetry restrictions. It is predicted that a quasi-degenerate mass spectroscopy of neutrino is favorable, and values of |V_{MNS}|_{13}, CP violation invariant measure J and the effective Majorana mass | | in neutrino-less double beta decay are not so tiny.
122011758
Note on Two-Higgs-Doublets Model in Non-Commutative Differential Geometry
It is shown that the non-commutative differential geometry fails to reproduce the most general Higgs potential of two-Higgs-doublets model. To recover physically sensible potential additional terms are needed. A general formula for inner products of basis two-forms in the non-commutative differential calculus is proposed by requiring that the inner products be expressed in terms of those of one-form basis. It leads to the absence of flavor changing neutral current in the tree level and of spontaneous jdP provided they are not induced by additional terms.
119911003
Scaling Violation and Deep Inelastic Contribution to p-n Mass Difference
123019191
Unified Treatment of Gauge and Higgs Fields in Non-Commutative Differential Geometry
120193721
Spontaneous chiral symmetry breaking in particle physics
Abstract The effective potential for q q condensation is examined also taking account of contributions from the non-perturbative region. An electronic computer is used to solve the nonlinear differential equation. We reach the conclusions that contributions from the non-perturbative region play an important role in explaining spontaneous chiral symmetry breaking quantitatively, and that effective coupling should be strong to some extent in the non-perturbative region.
122636061
Connes' Gauge Theory and Weinberg-Salam Model of Leptons on Noncommutative Space-Time
Connes’ gauge theory is defined on noncommutative space-time. It is applied to formulate a noncommutative Weinberg-Salam (WS)model in the leptonic sector with νR. It is shown that the model has two Higgs doublets and a gauge boson sector after the Higgs mechanism contains the massive charged gauge fields, two massless and two massive neutral gauge fields. It is also shown that, at the tree level, the neutrino couples to one of two ‘photons’, the electron interacts with both ‘photons’, and there exists a nontrivial νR-interaction on noncommutative space-time. To investigate the commutative limit of the model at the Lagrangian level, we generalize the charge conjugation transformation in QED to that in noncommutative QED. We show that there are two different generalizations, the C and � � � � � � .
27648576
A data formatter for the ATLAS Fast Tracker
The Fast TracKer (FTK) is an upgrade to the ATLAS level-2 trigger. The FTK system will reconstruct tracks using data from the inner Pixel and SCT silicon detector modules at trigger rates up to 100 kHz. We present an overview of the Data Formatter system, which is designed to remap, share and reformat the Pixel and SCT module data to match the geometry of the FTK trigger towers.