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24 papers · 1 filter
On the phase of quark determinant in lattice QCD with finite chemical potential
Shinji Takeda, Yoshinobu Kuramashi, Akira Ukawa
We investigate the phase of the quark determinant with finite chemical potential in lattice QCD using both analytic and numerical methods. Applying the winding number expansion and…
Detection of Gamma-Ray Polarization in Prompt Emission of GRB 100826A
Daisuke Yonetoku, Toshio Murakami, Shuichi Gunji +10
We report the polarization measurement in prompt -ray emission of GRB 100826A with the Gamma-Ray Burst Polarimeter (GAP) aboard the small solar power sail demonstrator IKAROS. W…
Experimental observation of the bifurcation dynamics of an intrinsic localized mode in a driven 1-D nonlinear lattice
M. Sato, S. Imai, N. Fujita +6
Linear response spectra of a driven intrinsic localized mode in a micromechanical array are measured as it approaches two fundamentally different kinds of bifurcation points. A lin…
Impact of Inert Higgsino Dark Matter
Mayumi Aoki, Jisuke Kubo, Taishi Okawa +1
We consider a recently proposed supersymmetric radiative seesaw model which is coupled with the minimal supergravity. The conventional R parity and invariance are imposed, wh…
Testing the Higgs triplet model with the mass difference at the LHC
Mayumi Aoki, Shinya Kanemura, Kei Yagyu
In general, there can be mass differences among scalar bosons of the Higgs triplet field with the hypercharge of Y=1. In the Higgs triplet model, when the vacuum expectation value…
Properties and applications of Fisher distribution on the rotation group
Tomonari Sei, Hiroki Shibata, Akimichi Takemura +2
We study properties of Fisher distribution (von Mises-Fisher distribution, matrix Langevin distribution) on the rotation group SO(3). In particular we apply the holonomic gradient…