Zobrazeno 1 - 10
of 22 750
pro vyhledávání: '"Yanagida A"'
Quantum evaporation of a black hole is conventionally studied semiclassically by assuming self-similarity of the black hole throughout the evaporation process. However, its validity was recently questioned, and the lifetime of a black hole is conject
Externí odkaz:
http://arxiv.org/abs/2409.06365
Autor:
Iwane, Takumi, Yanagida, Shintarou
We elucidate the comment in (Kapranov-Vasserot, Adv.\ Math., 2011, Remark 5.3.4) that the $1|1$-dimensional factorization structure of the formal superloop space of a smooth algebraic variety $X$ induces the $N_K=1$ SUSY vertex algebra structure of t
Externí odkaz:
http://arxiv.org/abs/2409.04220
The new gauge boson introduced in the minimal extension of the standard model (SM) by gauging the U(1)$_{\rm B-L}$ symmetry plays the role of dark matter when the U(1)$_{\rm B-L}$ gauge coupling is highly suppressed. This dark matter, named the F\'ee
Externí odkaz:
http://arxiv.org/abs/2408.12155
The strong charge-parity (CP) problem has been a long-standing problem in particle physics since 1976, illustrating the small CP-violation phase in quantum chromodynamics (QCD). The axion, based on the Peccei-Quinn mechanism, is the most popular solu
Externí odkaz:
http://arxiv.org/abs/2408.12146
Publikováno v:
Phys. Dark Univ. 46, 101659 (2024)
An ultralight gauge boson could address the missing cosmic dark matter, with its transverse modes contributing to a relevant component of the galactic halo today. We show that, in the presence of a coupling between the gauge boson and neutrinos, thes
Externí odkaz:
http://arxiv.org/abs/2407.18300
Autor:
Obara, Shuhei, Ueshima, Kota, Asaka, Takao, Hosaka, Yuji, Kan, Koichi, Nishimori, Nobuyuki, Aoki, Toshitaka, Asano, Hiroyuki, Haga, Koichi, Iba, Yuto, Ihara, Akira, Ito, Katsumasa, Iwashita, Taiki, Kadowaki, Masaya, Kanahama, Rento, Kobayashi, Hajime, Kobayashi, Hideki, Nishihara, Hideo, Nishikawa, Masaaki, Oikawa, Haruhiko, Saida, Ryota, Sakuraba, Keisuke, Sugimoto, Kento, Suzuki, Masahiro, Takahashi, Kouki, Takahashi, Shunya, Tanaka, Tatsuki, Tsuchiyama, Tsubasa, Yoshioka, Risa, Aoki, Tsuyoshi, Dewa, Hideki, Fujita, Takahiro, Kawase, Morihiro, Kiyomich, Akio, Hamano, Takashi, Masaki, Mitsuhiro, Masuda, Takemasa, Matsubara, Shinichi, Okada, Kensuke, Saji, Choji, Taniuchi, Tsutomu, Taniuchi, Yukiko, Ueda, Yosuke, Yamaguchi, Hiroshi, Yanagida, Kenichi, Fukami, Kenji, Hosoda, Naoyasu, Ishii, Miho, Itoga, Toshiro, Iwai, Eito, Magome, Tamotsu, Oishi, Masaya, Ohshima, Takashi, Kondo, Chikara, Sakurai, Tatsuyuki, Shoji, Masazumi, Sugimoto, Takashi, Takano, Shiro, Tamura, Kazuhiro, Watanabe, Takahiro, Tomai, Takato, Azumi, Noriyoshi, Inagaki, Takahiro, Maesaka, Hirokazu, Takahashi, Sunao, Tanaka, Takashi, Inoue, Shinobu, Kumazawa, Hirosuke, Moriya, Kazuki, Sakai, Kohei, Seno, Toshio, Sumitomo, Hiroshi, Takesako, Ryoichi, Tanaka, Shinichiro, Yamamoto, Ryo, Yokomachi, Kazutoshi, Yoshioka, Masamichi, Hara, Toru, Matsui, Sakuo, Hiraiwa, Toshihiko, Tanaka, Hitoshi, Ego, Hiroyasu
NanoTerasu, a new 3 GeV synchrotron light source in Japan, began user operation in April 2024. It provides high-brilliance soft to tender X-rays and covers a wide spectral range from ultraviolet to tender X-rays. Its compact storage ring with a circu
Externí odkaz:
http://arxiv.org/abs/2407.08925
The majoron is a well-motivated light (pseudo-Nambu-Goldstone) boson associated with the spontaneous breaking of a global lepton-number symmetry. In this {\it letter}, we relate the spontaneous breaking scale and its soft-breaking mass by requiring t
Externí odkaz:
http://arxiv.org/abs/2406.19083
The minimum seesaw model with two right-handed neutrinos is considered, where the lightest neutrino is naturally massless. Instead of adopting texture zeros in the lepton Yukawa matrices, which cause both theoretical and experimental troubles, here w
Externí odkaz:
http://arxiv.org/abs/2406.16352
The experimental verification of the Newton law of gravity at small scales has been a longstanding challenge. Recently, torsion balance experiments have successfully measured gravitational force at the millimeter scale. However, testing gravity force
Externí odkaz:
http://arxiv.org/abs/2405.16222
A new fifth force between particles carrying $B-L$ charges is well-motivated by the intriguing $U(1)_{B-L}$ extension of the standard model. The gauge boson mediator, F\'eeton, also serves as a dark matter candidate. In this letter, we propose a nove
Externí odkaz:
http://arxiv.org/abs/2402.14514