Zobrazeno 1 - 10
of 758
pro vyhledávání: '"SATO, Ryosuke"'
Long-range attractive interactions between dark matter particles can significantly enhance their annihilation, particularly at low velocities. This ``Sommerfeld enhancement'' is typically computed by evaluating the deformation of the two-particle wav
Externí odkaz:
http://arxiv.org/abs/2410.18168
The axion kinetic misalignment mechanism (KMM) opens the possibility of explaining dark matter for almost any axion mass and decay constant that are not accessible by the standard misalignment mechanism, in particular at low values of the axion decay
Externí odkaz:
http://arxiv.org/abs/2408.08355
Publikováno v:
JHEP 09 (2024) 064
A dark matter model based on QCD-like $SU(N_c)$ gauge theory with electroweakly interacting dark quarks is discussed. Assuming the dark quark mass $m$ is smaller than the dynamical scale $\Lambda_d \sim 4\pi f_d$, the main component of the dark matte
Externí odkaz:
http://arxiv.org/abs/2404.03963
We revisit the quantum de Finetti theorem. We state and prove a couple of variants thereof. In parallel, we introduce an operator version of the Martin boundary on quantum groups and prove generalizations of Biane's theoresm. Our proof of the de Fine
Externí odkaz:
http://arxiv.org/abs/2402.09713
Automated verification of functional correctness of imperative programs with references (a.k.a. pointers) is challenging because of reference aliasing. Ownership types have recently been applied to address this issue, but the existing approaches were
Externí odkaz:
http://arxiv.org/abs/2310.20430
Autor:
Sato, Ryosuke
It is known that determinantal point processes have an intimate relation to operator algebras. In the paper, we extend this relationship to encompass dynamical aspects. Especially, we delve into two types of determinantal point processes. One is rela
Externí odkaz:
http://arxiv.org/abs/2309.01117
We investigate cosmological phase transitions in various composite Higgs models consisting of four-dimensional asymptotically-free gauge field theories. Each model may lead to a confinement-deconfinement transition and a phase transition associated w
Externí odkaz:
http://arxiv.org/abs/2306.01305
Autor:
Hirai, Hiroshi, Sato, Ryosuke
In this study, we propose the polyhedral clinching auction for indivisible goods, which has so far been studied for divisible goods. As in the divisible setting by Goel et al. (2015), our mechanism enjoys incentive compatibility, individual rationali
Externí odkaz:
http://arxiv.org/abs/2303.00231
Autor:
Sato, Ryosuke
We address auctions in two-sided markets with budget constraints on buyers, a fundamental setting also crucial for applications such as display advertising. Our goal is to design efficient mechanisms that satisfy dominant strategy incentive compatibi
Externí odkaz:
http://arxiv.org/abs/2302.03458
We explore a model of dark matter (DM) that can explain the reported discrepancy in the muon anomalous magnetic moment and predict a large electric dipole moment (EDM) of the muon. The model contains a DM fermion and new scalars whose exclusive inter
Externí odkaz:
http://arxiv.org/abs/2212.02891