18008331
Twisting toroidal magnetic fields and the seasonal oscillation of the solar neutrino flux
Abstract We show that if the twist of toroidal magnetic fields in the sun is sizeable, a seasonal oscillation of the solar neutrino flux occurs. Although the size of the twist is not known, the development of the twist is believed to be the origin of the cylic oscillations with polarity reversals of solar magnetic fields in every 11 years. We found that with some sizes of twists, both Cl and Kamiokande II data can be reproduced reasonably well. Especially, the fine up-down structure of the Cl data is interpreted as an effect of the twist.
125223052
Renormalization Group Approach to Summing QCD Corrections in Hadronic Decays of the Higgs Boson
117266984
Screening theorem for the Higgs decays into the gauge boson pairs
The radiative corrections to the decays of the neutral CP-even Higgs boson $H$ into a longitudinal gauge boson pair, {\it i.e.}, $H \rightarrow Z_LZ_L$ and $W^+_LW^-_L$ are analyzed in the two Higgs doublet model by making use of the equivalence theorem. The sensitivity of the decay rates to the masses of the heavier Higgs bosons, charged $G^{\pm}$ and CP-odd neutral $A$ bosons as well as CP-even neutral $h$ boson, is investigated. Though the width $\Gamma (H \rightarrow Z_LZ_L)$ is insensitive to the masses of heavier Higgs bosons, $\Gamma (H \rightarrow W^+_LW^-_L)$ is sensitive and the radiative corrections are minimized for $m_G = m_A$. These results are explained completely on the basis of a new screening theorem for the vertices, which is closely connected with the custodial $SU(2)_V$ symmetry.
14591597
New derivation of anomaly mediated gaugino mass in the higher derivative regularization method
The technique of higher derivative regularization is applied to the Super-Weyl-Kahler anomaly in supergravity coupled with chiral matters and gauge multiplet. Our method makes it possible to derive directly and diagrammatically the formulae for the gaugino mass (in the Abelian case). Our procedure is applied to derivation of not only the mass formulae known in the anomaly mediation scenario, but also additional terms that depend on the Kahler potential.
12473628
Renormalization Group Flow near the Superconformal Points in N=2 Supersymmetric Gauge Theories
The behavior of the beta-function of the low-energy effective coupling is determined near the superconformal points in moduli space for two cases, the N = 2 supersymmetric SU(2) QCD with several massive matter hypermultiplets and the SU(3) Yang-Mills theory. The renormalization group flow is unambiguously fixed by looking at limited types of deformation near the superconformal points. It is pointed out that the scaling dimension of the beta­ function is controlled by the scaling behavior of moduli parameters, and the relation between them is explicitly worked out. Our scaling dimensions for the beta-functions are consistent in part with the results obtained recently by Bilal and Ferrari using a different method for the SU(2) QCD.
2180416
Left–right asymmetric holographic RG flow with gravitational Chern–Simons term
Abstract We consider the holographic renormalization group (RG) flow in three-dimensional gravity with the gravitational Chern–Simons term coupled to some scalar fields. We apply the canonical approach to this higher derivative case and employ the Hamilton–Jacobi formalism to analyze the flow equations of two-dimensional field theory. Especially we obtain flow equations of Weyl and gravitational anomalies, and derive c -functions for left and right moving modes. Both of them are monotonically non-increasing along the flow, and the difference between them is determined by the coefficient of the gravitational Chern–Simons term. This is completely consistent with the Zamolodchikov's c -theorem for parity-violating two-dimensional quantum field theories.
118419145
Overview of Triple and Quartic Gauge Coupling Measurements at the LHC
Scrutiny of the structure of electroweak gauge boson self-interactions through triple and quartic gauge boson couplings (TGCs and QGCs) constitutes an important part of the physics program of the Large Hadron Collider (LHC). Triboson production and vector boson scattering (VBS) are directly sensitive to QGCs while vector boson fusion (VBF) offers a new window in the study of TGCs, which is complementary to conventional measurements using diboson production. In this contribution, an overview of recent TGC and QCG measurements using triboson production, VBS and VBF by the ATLAS and CMS experiments at the LHC is presented.