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133 papers · 1 filter
An isotopic effect in phi photoproduction at a few GeV
A. I. Titov, T. -S. H. Lee, H. Toki
A distinct isotopic effect in phi photoproduction at 2-5 GeV region is identified by examining the production amplitudes due to Pomeron-exchange and meson-exchange mechanisms. This…
Spin observables in the reaction
H. Nabetani, T. Ogaito, T. Sato +1
The T matrix of the LambdaN-> NN reaction, which is a strangeness changing weak process, is derived. The explicit formulas of the spin observables are given for s-wave p-Lambda fin…
Thermalization of Poincaré Vacuum State and Fermion Emission from AdS_3 Black Holes in Bulk-Boundary Correspondence
Nobuyoshi Ohta, Jian-Ge Zhou
The greybody factors for spin 1/2 particles in the BTZ black holes are discussed from 2D CFT in bulk-boundary correspondence. It is found that the initial state of spin 1/2 particl…
Generic and Cogeneric Monomial Ideals
Ezra Miller, Bernd Sturmfels, Kohji Yanagawa
Monomial ideals which are generic with respect to either their generators or irreducible components have minimal free resolutions derived from simplicial complexes. For a generic m…
USp(2k) Matrix Model: Schwinger-Dyson Equations and Closed-Open String Interactions
H. Itoyama, A. Tsuchiya
We derive the Schwinger-Dyson/loop equations for the USp(2k) matrix model which close among the closed and open Wilson loop variables. These loop equations exhibit a complete set o…
Effects of Ram-Pressure from Intracluster Medium on the Star Formation Rate of Disk Galaxies in Clusters of Galaxies
Yutaka Fujita, Masahiro Nagashima
Using a simple model of molecular cloud evolution, we have quantitatively estimated the change of star formation rate (SFR) of a disk galaxy falling radially into the potential wel…