Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Nagahiro Hideko"'
We perform a systematic analysis of the mass and strong decays of the $\Omega(2012)$ resonance in a coupled-channel approach of a bare three-quark state and a composite meson-baryon state. Besides the coupling of the bare state and $\Xi^* \bar K$ cha
Externí odkaz:
http://arxiv.org/abs/2212.02783
Autor:
Nishi, Takahiro, Itahashi, Kenta, Ahn, DeukSoon, Berg, Georg P. A., Dozono, Masanori, Etoh, Daijiro, Fujioka, Hiroyuki, Fukuda, Naoki, Fukunishi, Nobuhisa, Geissel, Hans, Haettner, Emma, Hashimoto, Tadashi, Hayano, Ryugo S., Hirenzaki, Satoru, Horii, Hiroshi, Ikeno, Natsumi, Inabe, Naoto, Iwasaki, Masahiko, Kameda, Daisuke, Kisamori, Keichi, Kiyokawa, Yu, Kubo, Toshiyuki, Kusaka, Kensuke, Matsushita, Masafumi, Michimasa, Shin'ichiro, Mishima, Go, Miya, Hiroyuki, Murai, Daichi, Nagahiro, Hideko, Niikura, Megumi, Nose-Togawa, Naoko, Ota, Shinsuke, Sakamoto, Naruhiko, Sekiguchi, Kimiko, Shiokawa, Yuta, Suzuki, Hiroshi, Suzuki, Ken, Takaki, Motonobu, Takeda, Hiroyuki, Tanaka, Yoshiki K., Uesaka, Tomohiro, Wada, Yasumori, Watanabe, Atomu, Watanabe, Yuni N., Weick, Helmut, Yamakami, Hiroki, Yanagisawa, Yoshiyuki, Yoshida, Koichi
Publikováno v:
Nature Physics 19, 788-793 (2023)
Modern theories of physics tell that the vacuum is not an empty space. Hidden in the vacuum is a structure of anti-quarks $\bar{q}$ and quarks $q$. The $\bar{q}$ and $q$ pair has the same quantum number as the vacuum and condensates in it since the s
Externí odkaz:
http://arxiv.org/abs/2204.05568
Autor:
Tanaka Yoshiki K., Ayyad Yassid, Benlliure Jose, Brinkmann Kai-Thomas, Friedrich Stefan, Fujioka Hiroyuki, Geissel Hans, Gellanki Jnaneswari, Guo Chenlei, Gutz Eric, Haettner Emma, Harakeh Muhsin N., Hayano Ryugo S., Higashi Yuko, Hirenzaki Satoru, Hornung Christine, Igarashi Yoichi, Ikeno Natsumi, Itahashi Kenta, Iwasaki Masahiko, Jido Daisuke, Kalantar-Nayestanaki Nasser, Kanungo Rituparna, Knoebel Ronja, Kurz Nikolaus, Metag Volker, Mukha Ivan, Nagae Tomofumi, Nagahiro Hideko, Nanova Mariana, Nishi Takahiro, Ong Hooi Jin, Pietri Stephane, Prochazka Andrej, Rappold Christophe, Reiter Moritz P., Rodríguez Sánchez Jose Luis, Scheidenberger Christoph, Simon Haik, Sitar Branislav, Strmen Peter, Sun Baohua, Suzuki Ken, Szarka Imrich, Takechi Maya, Tanihata Isao, Terashima Satoru, Watanabe Yuni N., Weick Helmut, Widmann Eberhard, Winfield John S., Xu Xiaodong, Yamakami Hiroki, Zhao Jianwei
Publikováno v:
EPJ Web of Conferences, Vol 130, p 02010 (2016)
We performed a missing-mass spectroscopy experiment of the 12C(p, d) reaction at 2.5 GeV proton energy in order to search for η′ mesic nuclei. An excitation-energy spectrum of 11C was obtained around the η′ production threshold. As no significa
Externí odkaz:
https://doaj.org/article/387a360ddd8a4ab393f0a1a5cf08871d
Autor:
Itahashi Kenta, Ahn DeukSoon, Berg Georg P.A., Dozono Masanori, Etoh Daijiro, Fujioka Hiroyuki, Fukuda Naoki, Fukunishi Nobuhisa, Geissel Hans, Haettner Emma, Hashimoto Tadashi, Hayano Ryugo S., Hirenzaki Satoru, Horii Hiroshi, Ikeno Natsumi, Inabe Naoto, Iwasaki Masahiko, Kameda Daisuke, Kawase Shouichiro, Kisamori Keiichi, Kiyokawa Yu, Kubo Toshiyuki, Kusaka Kensuke, Matsushita Masafumi, Michimasa Shin’ichiro, Mishima Go, Miya Hiroyuki, Murai Daichi, Nagahiro Hideko, Nishi Takahiro, Ota Shinsuke, Sakamoto Naruhiko, Sekiguchi Kimiko, Suzuki Hiroshi, Suzuki Ken, Takaki Motonobu, Takeda Hiroyuki, Tanaka Yoshiki K., Uesaka Tomohiro, Wada Yasumori, Watanabe Yuni N., Weick Helmut, Yamakami Hiroki, Yanagisawa Yoshiyuki, Yoshida Koichi
Publikováno v:
EPJ Web of Conferences, Vol 130, p 01017 (2016)
We conduct an experimental project to make spectroscopy of deeply bound pionic atoms systematically over wide range of nuclei. We aim at studying the strong interaction in the low energy region, which has close connection to spontaneous chiral symmet
Externí odkaz:
https://doaj.org/article/4eeaffe18e1940c88cfae610f74d463f
Autor:
Fujioka Hiroyuki, Brinkmann Kai-Thomas, Friedrich Stefan, Geissel Hans, Hayano Ryugo S., Hirenzaki Satoru, Itahashi Kenta, Itoh Satoshi, Jido Daisuke, Metag Volker, Nagahiro Hideko, Nanova Mariana, Nishi Takahiro, Okochi Kota, Outa Haruhiko, Suzuki Ken, Suzuki Takatoshi, Tanaka Yoshiki K., Watanabe Yuni N., Weick Helmut
Publikováno v:
EPJ Web of Conferences, Vol 66, p 09006 (2014)
In order to investigate a possible mass reduction of an η′ meson at finite density, a series of missing-mass spectroscopy experiments of η′-nucleus bound states with the 12C(p,d) reaction is planned at GSI and FAIR. A semi-exclusive measurement
Externí odkaz:
https://doaj.org/article/621a976229454c01b201d54e88bc1adf
Autor:
Tanaka Yoshiki K., Brinkmann Kai-Thomas, Friedrich Stefan, Fujioka Hiroyuki, Geissel Hans, Hayano Ryugo S., Hirenzaki Satoru, Itahashi Kenta, Itoh Satoshi, Jido Daisuke, Metag Volker, Nagahiro Hideko, Nanova Mariana, Nishi Takahiro, Okochi Kota, Outa Haruhiko, Suzuki Ken, Suzuki Takatoshi, Watanabe Yuni N., Weick Helmut
Publikováno v:
EPJ Web of Conferences, Vol 66, p 09019 (2014)
We plan a missing-mass spectroscopy experiment of η′ mesic nuclei with the 12C(p,d)η′⊗11C reaction to study in-medium properties of the η′ meson. In nuclear medium, due to restoration of chiral symmetry, the mass of the η′ meson may be
Externí odkaz:
https://doaj.org/article/2dc173d06ef444a6be8afccb2e8cc713
Publikováno v:
EPJ Web of Conferences, Vol 81, p 01026 (2014)
Meson properties are believed to have close connection to the fundamental theory, QCD, and have been studied for a long time both theoretically and experimentally. In this report, we study the recent activities in this field and consider the η(958)
Externí odkaz:
https://doaj.org/article/3279734bdd864baaa57d1432c652f7b6
Autor:
Tani, Akari, Ikeno, Natsumi, Jido, Daisuke, Nagahiro, Hideko, Fujioka, Hiroyuki, Itahashi, Kenta, Hirenzaki, Satoru
Publikováno v:
Prog. Theor. Exp. Phys. 2021, 033D02 (2021)
We study theoretically the structure of double pionic atoms, in which two negatively charged pions ($\pi^-$) are bound in the atomic orbits. The double pionic atom is considered to be an interesting system from the point of view of the multi bosonic
Externí odkaz:
http://arxiv.org/abs/2012.12236
Publikováno v:
EPJ Web of Conferences, Vol 37, p 02001 (2012)
In this report, we show the theoretical results of the formation spectra of the η′-nucleus systems in the (p, d) reactions based on the latest theoretical considerations of the η′ properties in nucleus. The results shown here are important to g
Externí odkaz:
https://doaj.org/article/4a213209524e43248d4a704486023d82
Autor:
Outa Haruhiko, Okochi Kota, Nishi Takahiro, Nanova Mariana, Nagahiro Hideko, Metag Volker, Jido Daisuke, Itoh Satoshi, Hirenzaki Satoru, Hayano Ryugo S., Geissel Hans, Itahashi Kenta, Fujioka Hiroyuki, Suzuki Ken, Suzuki Takatoshi, Tanaka Yoshiki K., Weick Helmut
Publikováno v:
EPJ Web of Conferences, Vol 37, p 02005 (2012)
The η′ meson mass may be reduced due to partial restoration of chiral symmetry. If this is the case, an η′-nucleus system may form a nuclear bound state.We plan to carry out a missing-mass spectroscopy experiment with the 12C(p,d) reaction at G
Externí odkaz:
https://doaj.org/article/62dcf8e182f04a0888c2aa12864cfb2e