Zobrazeno 1 - 10
of 50 499
pro vyhledávání: '"Yoshimura M."'
Autor:
Bandyopadhyay, Abhisek, Lee, S., Adroja, D. T., Lees, M. R., Stenning, G. B. G., Aich, P., Tortora, Luca, Meneghini, C., Cibin, G., Berlie, Adam, Saha, R. A., Takegami, D., Melendez-Sans, A., Poelchen, G., Yoshimura, M., Tsuei, K. D., Hu, Z., Chan, Ting-Shan, Chattopadhyay, S., Thakur, G. S., Choi, Kwang-Yong
We present an experimental investigation of the magnetic ground state in Ba$_4$NbIr$_3$O$_{12}$, a fractional valent trimer iridate. X-ray absorption and photoemission spectroscopy show that the Ir valence lies between 3+ and 4+ while Nb is pentavale
Externí odkaz:
http://arxiv.org/abs/2406.17129
We confront measurable neutrino degrees of freedom $N_{\rm eff}$ and summed neutrino mass in the early universe to particle physics at the energy scale beyond the standard model (BSM), in particular including the issue of neutrino mass type distincti
Externí odkaz:
http://arxiv.org/abs/2405.17760
Autor:
Bandyopadhyay, Abhisek, Lee, S., Adroja, D. T., Stenning, G. B. G., Berlie, Adam, Lees, M. R., Saha, R. A., Takegami, D., Melendez-Sans, A., Poelchen, G., Yoshimura, M., Tsuei, K. D., Hu, Z., Kao, Cheng-Wei, Huang, Yu-Cheng, Chan, Ting-Shan, Cho, Kwang-Yong
Frustrated magnets offer a plethora of exotic magnetic ground states, including quantum spin liquids (QSLs), in which enhanced quantum fluctuations prevent a long-range magnetic ordering of the strongly correlated spins down to lowest temperature. He
Externí odkaz:
http://arxiv.org/abs/2403.06446
Autor:
Yoshimura, M.
Z-boson exchange interaction induces attractive force between left-handed neutrino and neutron. The Ginzburg-Landau mean field calculation and the Bogoliubov transformation suggest that this attractive force leads to neutrino-neutron pair condensate
Externí odkaz:
http://arxiv.org/abs/2209.02985
Autor:
Yoshimura, M.
It is known that the Schwinger mechanism of vector-like QED theory is afflicted by a logarithmic singularity under background electromagnetic field due to a hypothetical massless charged fermion. We extend singularity analysis to a more realistic cas
Externí odkaz:
http://arxiv.org/abs/2209.00166
Autor:
Yoshimura, M.
We propose a new mechanism of lepton (L) number asymmetry generation, hence offer an explanation of matter-antimatter imbalance when a significant amount of baryon number is later transformed from this L-number by known electroweak sphaleron mediated
Externí odkaz:
http://arxiv.org/abs/2205.04663
Autor:
Yoshimura, M.
Scalar-tensor theories of gravity that embrace conformal coupling to the scalar curvature are the focal point of cosmology on discussions of inflation and late-time accelerating universe. Although there exists a stringent nucleo-synthesis constraint
Externí odkaz:
http://arxiv.org/abs/2204.11384
Autor:
Yoshimura, M.
A special class of conformal gravity theories is proposed to solve the long standing problem of the fine-tuned cosmological constant. In the proposed model time evolution of the inflaton field leaves behind a nearly vanishing, but finite value of dar
Externí odkaz:
http://arxiv.org/abs/2204.10809
Autor:
Tago M, Hirata R, Katsuki NE, Nakatani E, Tokushima M, Nishi T, Shimada H, Yaita S, Saito C, Amari K, Kurogi K, Oda Y, Shikino K, Ono M, Yoshimura M, Yamashita S, Tokushima Y, Aihara H, Fujiwara M, Yamashita SI
Publikováno v:
Clinical Interventions in Aging, Vol Volume 19, Pp 175-188 (2024)
Masaki Tago,1 Risa Hirata,1 Naoko E Katsuki,1 Eiji Nakatani,2 Midori Tokushima,1 Tomoyo Nishi,1 Hitomi Shimada,3 Shizuka Yaita,1 Chihiro Saito,4 Kaori Amari,5 Kazuya Kurogi,6 Yoshimasa Oda,7 Kiyoshi Shikino,8,9 Maiko Ono,10 Mariko Yoshimura,11 Shun Y
Externí odkaz:
https://doaj.org/article/95851828ebde4c1292bd24d54edf8c26
Autor:
Yoshimura, M.
We present models that simultaneously predict presence of dark energy and cold dark matter along with slow-roll inflation. The dark energy density is found to be of order $({\rm a \;few \;meV})^4$, and the mass of dark matter constituent is $\approx
Externí odkaz:
http://arxiv.org/abs/2112.02835