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7 papers · 1 filter
Combinatorial study on the group of parity alternating permutations
Shinji Tanimoto
The combinatorial theory for the set of parity alternating permutations is expounded. In view of the numbers of ascents and inversions, several enumerative aspects of the set are i…
Variational Approach to the Chiral Phase Transition in the Linear Sigma Model
Y. Tsue, K. Matsuda
The chiral phase transition at finite temperature is investigated in the linear sigma model, which is regarded as a low energy effective theory of QCD with three momentum cutoff, i…
Many-Quark Model with su(4) Algebraic Structure
Y. Tsue, C. Providencia, J. da Providencia +1
With the use of a certain type of the Schwinger boson representation of the su(4) algebra, the Bonn model for many-quark systems and an extension of the model, in which the energie…
Bragg-like curve for dark matter searches; binary gases
Akira Hitachi
The directional detection of low-energy recoil ions can provide strong possibility for observation of dark matter in the Galaxy. Quenching factors for 5-200 keV recoil ions in N2,…
On the image of code polynomials under theta map
Manabu Oura, Riccardo Salvati Manni
The theta map sends code polynomials into the ring of Siegel modular forms of even weights. Explicit description of the image is known for and the surjectivity of the the…
Difference between interaction cross sections and reaction cross sections
Akihisa Kohama, Kei Iida, Kazuhiro Oyamatsu
We revisit the commonly accepted notion that the difference between interaction and reaction cross sections is negligible at relativistic energies, and show that, especially in sma…