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1.
The running coupling and the Kugo-Ojima parameter of unquenched lattice Landau gauge are simulated and compared with the continuum
theory. Although the running coupling measured by the ghost and gluon dressing function is infrared suppressed, the running
coupling has a maximum of α0 ∼ 2 − 2.5 at around q = 0.5 GeV irrespective of the fermion actions (Wilson fermions and Kogut-Susskind (KS) fermions). The Kugo-Ojima parameter
c which saturated to about 0.8 in quenched simulations becomes consistent with 1 in the MILC configurations produced with the
use of the Asqtad action, after averaging the dependence on polarization directions caused by the asymmetry of the lattice.
The presence of the correction factor 1 + c
1/q
2 in the running coupling depends on the lattice size and the sea quark mass. In the large lattice size and small sea quark
mass, c
1 is confirmed of the order of a few GeV. The MILC configuration of a = 0.09 fm suggests also the presence of dimension-4 condensates with a sign opposite to the dimension-2 condensates. The
gluon propagator, the ghost propagator, and the running coupling are compared with recent pQCD results including an anomalous
dimension of fields up to the four-loop level. 相似文献
2.
3.
S. Furui 《Zeitschrift fur Physik C Particles and Fields》1995,68(4):661-671
Experimental data of $\bar pp$ annihilation into 3π0 and π+π0π? are analyzed in the quark pair creation model (3 P 0 Model) with planar quark diagram topology. There are two form factors depending on whether 1) the two π′s contain a quark or an antiquark that originates from ap or a $\bar p$ respectively, or 2) one π contain a quark and an anti-quark both created from the vacuum. We call the amplitude of the first as a G-type and the latter as the an F-type. The intermediate states in G-type processes which contain correlations of the3 P 0 vertices in the initial state and those in the final state can be regarded as gluons of 0++ and a $\bar qq$ . The two π resonance like structure of 0++ (1520) observed in 3π0 and 2++ observed in π+π0π? can be interpreted as the interference of the G-type amplitudes with the F-type amplitudes. 相似文献
4.
Yoshimasa Hama Kazuya Hosono Yasuro Furui Kenichi Shinohara 《Journal of polymer science. Part A, Polymer chemistry》1971,9(5):1411-1419
ESR studies of ultraviolet-irradiated polyethylene (PE) were carried out. Irradiation effects different from those of high-energy radiation are observed. Ultraviolet radiation is absorbed selectively, and especially in carbonyl groups in PE produced by oxidation. Radicals produced were identified as \documentclass{article}\pagestyle{empty}\begin{document}$ \hbox{---} {\rm CH}_2 \hbox{---} {\dot {\rm C}} {\rm H} \hbox{---}{\rm CHO}$\end{document} and \documentclass{article}\pagestyle{empty}\begin{document}$ \hbox{---} {\rm CH}_2 \hbox{---} {\dot {\rm C}} {\rm H} \hbox{---}{\rm CH}_2 \hbox{---}$\end{document}. Some radicals giving a quintet signal stable at room temperature were also observed but remained unidentified. The radical \documentclass{article}\pagestyle{empty}\begin{document}$ \hbox{---} {\rm CH}_2 \hbox{---} {\dot {\rm C}} {\rm H} \hbox{---}{\rm CHO}$\end{document} undergoes a mutual conversion with the acyl radical: 相似文献
5.
Makoto Kiso Hideki Katagiri Hiroyasu Furui Akira Hasegawa 《Journal of carbohydrate chemistry》2013,32(5):627-644
Abstract Suitably protected 1-deoxynojirimycin (l, 5-dideoxy-l, 5-imino-D-glucitol; DNJ) and its 2-acetamido derivative, i.e., 2, 3, 6-tri-O-benzyl-.N-benzyloxycarbonyl-l, 5-dideoxy-1, 5-imino-D-glucitol (6) and 2-acetamido-3, 6-di-O-benzyl-N-benzyloxycarbonyl-1, 2, 5-trideoxy-l, 5-imino-D-glucitol (14) were each coupled with methyl 2, 3, 4, 6-tetra-O-acetyl-1-thio-β-D-galactopyranoside (15) in the presence of dimethyl(methylthio)-sulfonium triflate (DMTST) as a promoter, to give 16 and 18, which were converted to the novel disaccharides (20, 21) related to lactose and lactosamine. Coupling of 14with methyl 3, 4, 6-tri-O-acetyl-2-deoxy-2-phthalimido-l-thio-β-D-glucopyranoside (22) gave achitobiose analog (25). O-(β-D-Galactopyranosyl)-(l→3)-DNJ derivatives (38, 39) and O-(β-D-glucopyranosyl)-(l→3)-DNJ (45) were also synthesized. Conformational analysis of a variety of DNJ derivatives, based on the 1H NMR data, is also discussed. 相似文献
6.
7.
Sadataka Furui 《Few-Body Systems》2009,46(4):221-228
A new type of gauge fixing of the Coulomb gauge domain wall fermion system that reduces the fluctuation of the effective running
coupling and the effective mass of arbitrary momentum direction including the region outside the cylinder cut region is proposed
and tested in the 163 × 32 × 16 gauge configurations of RBC/UKQCD collaboration. The running coupling at the lowest momentum point does not show
infrared suppression and compatible with the experimental data extracted from the JLab collaboration. The source of the fluctuation
of the effective mass near momentum p = 0.6 GeV region is expected to be due to the domain wall fermion zero modes. 相似文献
8.
9.
Nakayama T Kurosawa Y Furui S Kerman K Kobayashi M Rao SR Yonezawa Y Nakano K Hino A Yamamura S Takamura Y Tamiya E 《Analytical and bioanalytical chemistry》2006,386(5):1327-1333
Polymerase chain reaction (PCR) is an essential part of research based on genomics or cell analysis. The development of a
microfluidic device that would be suitable for high-temperature-based reactions therefore becomes an important contribution
towards the integration of micro-total analysis systems (μTAS). However, problems associated with the generation of air bubbles
in the microchannels before the introduction of the assay liquid, which we call the “initial start-up” in this study, made
the flow irregular and unstable. In this report, we have tried to address these problems by adapting a novel liquid-flow method
for high-temperature-based reactions. A PDMS-based microfluidic device was fabricated by soft-lithography techniques and placed
on a cartridge heater. The generation of the air bubbles was prevented by introducing the fluorinated oil, an inert and highly
viscous liquid, as the cap just before the introduction of the sample solutions into the microchannels. The technique was
applied for continuous-flow PCR, which could perform PCR on-chip in a microfluidic system. For the evaluation of practical
accuracy, plasmid DNA that serves as a reference molecule for the quantification of genetically modified (GM) maize was used
as the template DNA for continuous-flow PCR. After PCR, the products were collected in a vial and analyzed by gel electrophoresis
to confirm the accuracy of the results. Additionally, quantitative continuous-flow PCR was performed using TaqMan technology
on our PCR device. A laser detection system was also used for the quantitative PCR method. We observed a linear relationship
between the threshold cycle (Ct) and the initial DNA concentration. These results showed that it would be possible to quantify
the initial copies of the template DNA on our microfluidic device. Accurate quantitative DNA analysis in microfluidic systems
is required for the integration of PCR with μTAS, thus we anticipate that our device would have promising potential for applications
in a wide range of research. 相似文献
10.
Sadataka Furui 《Few-Body Systems》2014,55(11):1083-1097
We apply the supersymmetric model of É. Cartan to the pseudoscalar meson decay into two photons, \({\pi_0\to\gamma\gamma}\) , \({\eta\to\gamma\gamma}\) and \({\eta'\to\gamma\gamma}\) . In the book of É. Cartan published in 1966, Dirac spinors t (A, B) and t (C, D) and vector fields E and E′ were introduced and five supersymmetric transformations G 23, G 12, G 13, G 123 and G 132 were considered. The Pauli spinor is treated as a quaternion and the Dirac spinor is treated as an octonion. In the pseudoscalar meson decay, when the two final vector fields belong to the same group (EE or E′E′), we call the diagram rescattering diagram. When they belong to different groups (EE′), the diagram is called twisted diagram. Assuming the triality selection rules of octonions, dark matter is interpreted as matter emitting photons in a different triality sector than that of electromagnetic probes in our world. 相似文献