Gravitational wave footprints from Higgs-portal scalegenesis with multiple dark chiral scalars

We discuss the gravitational wave(GW)spectra predicted from the electroweak scalegenesis of the Higgs portal type with a large number of dark chiral flavors,which many flavor QCD would underlie and give the dynamical explanation of the negative Higgs portal coupling required to trigger the electroweak symmetry breaking.We employ the linear-sigma model as the low-energy description of dark many flavor QCD and show that the model undergoes ultra-supercooling due to the produced strong first-order thermal phase transition along the(approximately realized)flat direction based on the Gildener-Weinberg mechanism.Passing through evaluation of the bubble nucleation/percolation,we address the reheating and relaxation processes,which are generically non-thermal and nonadiabatic.Parametrizing the reheating epoch in terms of the e-folding number,we propose proper formulae for the redshift effects on the GW frequencies and signal spectra.It then turns out that the ultra-supercooling predicted from the Higgs-portal scalegenesis generically yields none of GW signals with the frequencies as low as nano Hz,unless the released latent heat is transported into another sector other than reheating the universe.Instead,models of this class prefer to give the higher frequency signals and still keeps the future prospected detection sensitivity,like at LISA,BBO,and DECIGO,etc.We also find that with large flavors in the dark sector,the GW signals are made further smaller and the peak frequencies higher.Characteristic phenomenological consequences related to the multiple chiral scalars include the prediction of dark pions with the mass much less than TeV scale,which is also briefly addressed.

Unified interpretation of scalegenesis in conformally extended standard models:a dynamical origin of Higgs portal

We present a universal interpretation of a class of conformal extended standard models that include Higgs portal interactions as realized in low-energy effective theories.The scale generation mechanism in this class(scalegenesis)arises along the(nearly)conformal/flat direction for breaking scale symmetry,where the electroweak symmetry-breaking structure arises similarly as in the standard model.A dynamical origin for the Higgs portal coupling can provide the discriminator for the low-energy“universality class,”to be probed in forthcoming collider experiments.

Importance of an appropriate number of examined lymph nodes in patients with pancreatic cancer-the more the better?

Pancreatic cancer is a highly aggressive malignant cancer with a 5-year survival rate of approximately 10%.The outcome of patients diagnosed with resectable pancreatic cancer as per the National Comprehensive Cancer Network(NCCN)classification and those who underwent resection was not satisfactory.Similar to other abdominal malignant tumors,the stages of pancreatic cancer are defined by local extension,lymph node metastasis,and distant metastasis.The presence or absence of lymph node metastasis is diagnosed by pathological examination of the retrieved lymph,the quality of the diagnosis based on lymph node(N)staging depends on the surgical and pathological aspects(1).