Masashi Hazumi
KEK
761 Papers
8.2K Citations
Masashi Hazumi is an academic researcher from KEK. The author has contributed to research in topics: Cosmic microwave background & KEKB. The author has an hindex of 87, co-authored 708 publications. Previous affiliations of Masashi Hazumi include Japan Aerospace Exploration Agency & University of Sydney.
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Papers
Thermal analysis of a prototype cryogenic polarization modulator for use in a space-borne CMB polarization experiment
Toshiaki Iida,Yuki Sakurai,Tomotake Matsumura,Hajime Sugai,H. Imada,Hirokazu Kataza,Hiroyuki Ohsaki,Masashi Hazumi,Masashi Hazumi,Nobuhiko Katayama,Ryo Yamamoto,Shin Utsunomiya,Yasunori Terao +12 more
- 01 Dec 2017
TL;DR: In this paper, the authors report a thermal analysis of a polarization modulator unit (PMU) for use in a space-borne cosmic microwave background (CMB) project, which is the best method to test the cosmic inflation experimentally.
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Search for B+→J/ψη′K+ and B0→J/ψη′KS0 decays
Q. L. Xie,Kazuo Abe,I. Adachi,Hiroaki Aihara,D. Anipko,K. Arinstein,V. M. Aulchenko,T. Aushev,Tariq Aziz,S. Bahinipati,A. M. Bakich,Vladislav Balagura,E. L. Barberio,Marco Barbero,A. Bay,I. Bedny,K. Belous,U. Bitenc,I. Bizjak,S. Blyth,A. Bozek,M. Bračko,T. E. Browder,M. C. Chang,Y. Chao,A. Chen,K. F. Chen,W. T. Chen,Byung Gu Cheon,R. Chistov,Y. Choi,Young-Il Choi,S. Cole,J. Dalseno,M. Dash,A. Drutskoy,S. Eidelman,D. Epifanov,N. Gabyshev,T. J. Gershon,A. Go,G. Gokhroo,H. Ha,J. Haba,K. Hayasaka,H. Hayashii,Masashi Hazumi,D. Heffernan,T. Hokuue,Y. Hoshi,S. R. Hou,W. S. Hou,T. Iijima,K. Ikado,A. Imoto,K. Inami,A. Ishikawa,Hirokazu Ishino,R. Itoh,M. Iwasaki,Y. Iwasaki,J. H. Kang,P. Kapusta,N. Katayama,H. Kawai,T. Kawasaki,H. Kichimi,H. J. Kim,Y. J. Kim,S. Korpar,P. Križan,P. Krokovny,R. Kulasiri,Rakesh Kumar,C. C. Kuo,A.S. Kuzmin,Y. J. Kwon,S. E. Lee,T. Lesiak,S. W. Lin,Yu-xi Liu,Gobinda Majumder,F. Mandl,T. Matsumoto,S. McOnie,W. A. Mitaroff,K. Miyabayashi,H. Miyake,H. Miyata,Y. Miyazaki,R. Mizuk,G. R. Moloney,James Mueller,Yasushi Nagasaka,E. Nakano,M. Nakao,Z. Natkaniec,S. Nishida,O. Nitoh,T. Ohshima,S. Okuno,S. L. Olsen,Y. Onuki,H. Ozaki,P. Pakhlov,G. Pakhlova,H. Park,L. S. Peak,R. Pestotnik,L. E. Piilonen,Anton Poluektov,H. Sahoo,Y. Sakai,N. Satoyama,T. Schietinger,O. Schneider,J. Schümann,K. Senyo,M. Shapkin,H. Shibuya,B. Shwartz,V.A. Sidorov,Andrey Sokolov,A. Somov,Samo Stanič,M. Starič,H. Stoeck,K. Sumisawa,T. Sumiyoshi,S. Y. Suzuki,F. Takasaki,K. Tamai,M. H. Tanaka,G. N. Taylor,Y. Teramoto,X. C. Tian,K. Trabelsi,T. Tsuboyama,T. Tsukamoto,S. Uehara,T. Uglov,Y. Unno,S. Uno,Phillip Urquijo,Yu. V. Usov,G. S. Varner,C. H. Wang,M. Z. Wang,Y. Watanabe,Robin Wedd,E. Won,A. Yamaguchi,Y. Yamashita,M. Yamauchi,C. C. Zhang,Long Zhang,Zhenyu Zhang,V.N. Zhilich,A. Zupanc +158 more
TL;DR: In this paper, the authors reported the results of searches for B+→J/ψη′K+ and B0→J/(ψ η′KS0) decays, using a sample of 388×106 BB pairs collected with the Belle detector at the Υ(4S) resonance.
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Evaluation of silicon micro strip detectors with large read-out pitch
K. Senyo,Masashi Hazumi,T. Kawasaki,Y. Nagashima,K. Yamamoto,Kazuhisa Yamamura,T. Tsuboyama,J. Haba,Hayato Ikeda,Hiroyuki Iwasaki,Tomohiro Matsuda,H. Ozaki,M. H. Tanaka,Yoshikazu Yamada,S. Okuno,S. Avrillon,Y. Asano,Shigeki Mori,Chikara Fukunaga,Tachishige Hirose,H. Miyata,Kazumasa Miyano,E. Banas,A. Bozek,Z. Natkaniec,H. Palka,M. Rozanska,K. Rybicki +27 more
TL;DR: In this paper, the authors developed a silicon micro strip detector with the pitch of the readout strips as large as 250 μm on the ohmic side, and made samples with different structures to optimize the width of implant strips, aluminum read-out strips, and/or the read out scheme among strips.
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Light Dark Matter Search with Nitrogen-Vacancy Centers in Diamonds
So Chigusa,Masashi Hazumi,E. Herbschleb,Norikazu Mizuochi,Kazunori Nakayama +4 more
- 24 Feb 2023
TL;DR: In this paper , the authors proposed new ideas to directly search for light dark matter, such as the axion or the dark photon, by using magnetometry with nitrogen-vacancy centers in diamonds.
Search for tau --> mu gamma decay at Belle
Kazuo Abe,Y. Chao,S. Kobayashi,S. Yanaka,K. Misono,D. Liventsev,R. Kulasiri,S. E. Vahsen,Kei Suzuki,S.N. Tovey,Y. Asano,H. Kichimi,G. R. Moloney,V.N. Zhilich,H. Nakazawa,H. Shibuya,M. Akatsu,E.J. Prebys,J. Tanaka,S. L. Olsen,Takashi Nakamura,D. W. Kim,S. Kumar,A. Sidorov,H. Kakuno,K. Ikeda,M. Tanaka,Y. Choi,T. Mori,S. H. Lee,N. Katayama,K. Hoshina,H. Park,T. Sumiyoshi,S. Okuno,Tsukasa Aso,J. W. Nam,F. Takasaki,B. G. Cheon,Hirokazu Miyake,Kyo Yoshida,Hirokazu Ishino,T. Tsuboyama,Y. Yamashita,B. Shwartz,T. Iijima,A. Ishikawa,J. S. Lange,P. K. Behera,A. Bozek,M. Rozanska,E. M. Heenan,Matthew Jones,S. Y. Suzuki,D. Zontar,Y. Watanabe,K. Inami,H. Hirano,T. Hirai,S. R. Hou,K. Hara,K. Ueno,H. Hayashii,A. Satpathy,S. Uno,Y. Sakai,J. Haba,T. Takahashi,Y. J. Kwon,S. Uehara,S. Ogawa,Hyun Woo Kim,Yoshihiko Nagashima,Ascelin Gordon,Daniel Robert Marlow,T. Aushev,Naritoshi Kawamura,S. K. Swain,Kevin Varvell,M. Satapathy,Byoung Sup Ahn,K. Sumisawa,T. Higuchi,L. E. Piilonen,F. Handa,Yasuhiko Yamada,Hiroyuki Sagawa,E. Kurihara,E. Won,Masashi Yokoyama,T. Tsukamoto,N. C. Hastings,Z. Natkaniec,V. M. Aulchenko,H. Fujii,J. Kaneko,N. Morgan,Y. Mikami,H. C. Huang,K. Kinoshita,N.I. Root,M. Z. Wang,Makoto Tomoto,Heejong Kim,H. Yamamoto,I. Adachi,G. N. Taylor,M. Takita,Koya Abe,V. Eiges,K. Senyo,K. Neichi,Masaki Fukushima,O. Nitoh,R. Kagan,S. Schrenk,Kazunori Hanagaki,K. Korotushenko,J. G. Wang,P. Chang,Y. Hoshi,R. Chistov,P. Pakhlov,T. Okabe,R. Guo,Y. Tanaka,Hirokazu Ikeda,Bruce Yabsley,J. S. Kang,T. Kuniya,D. Beiline,S. Eidelman,Y. Igarashi,C. W. Park,H. Yuta,M. Yamaga,S. Behari,Rong-Shyang Lu,Yuji Enari,M. Nakao,T. Nozaki,I. Higuchi,Hiroaki Aihara,H. Tajima,Hyunyong Kim,David A. Jackson,Go Iwai,Yasushi Nagasaka,A. Sugi,Shih-Chieh Hsu,S. Koishi,H. Palka,Y. Teramoto,Hiroshi Sakamoto,T. Kawasaki,A. Sugiyama,Y. Higasino,K. Gotow,T. Matsubara,T. E. Browder,M. Asai,Y. Ushiroda,W. S. Hou,P. Krokovny,Shigeki Mori,J.I. Suzuki,C.W. Everton,J. Ryuko,T. Yamanaka,L. S. Peak,S. Noguchi,M. E. Sevior,S. Tokuda,C. Fukunaga,S. Matsui,H. Guler,T. Nagamine,Yasuhiro Ohshima,T. Matsumoto,C. C. Zhang,S. K. Kim,Hiroyuki Iwasaki,C. H. Wang,H. Miyata,J. Dragic,A.E. Bondar,S. K. Choi,J. L. Rodriguez,T. Okazaki,K. Trabelsi,P. Kapusta,K. Miyabayashi,K. Tamai,Y. Yusa,Y. Unno,R. Itoh,Samo Stanič,H. K. Jang,F. Fang,Y. Iwasaki,T.H. Kim,S. Y. Suzuki,Jia-ju Zhang,C. C. Wang,H. W. Zhao,Hikaru Kawai,Elzbieta Banas,J. H. Kang,Alexei Kuzmin,S. Matsumoto,Christos Leonidopoulos,N. Tamura,T. Hojo,Kanae Asai,Krzysztof A. Rybicki,Y. Zheng,Changwon Park,Masashi Hazumi,Hideyuki Konishi,E. Nakano,Y. Settai,S. Nishida,T. Nakadaira,A. Yamaguchi,M. D. Peters,T. Hara,A. Garmash,B. C. K. Casey,A. M. Bakich,M. Yamauchi,T. Ohshima,L.C. Moffitt,G.F. Moorhead,H. Hamasaki,T. Tomura,H. Ozaki,A. Murakami,S. Semenov,A. Droutskoi,Pawel Jalocha +239 more
- 01 Jan 2001
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