Observation of two charged bottomonium-like resonances

Ichiro Adachi,K. Adamczyk,Hiroaki Aihara,K. E. Arinstein,Y. Arita,David M. Asner,T. Aso,Vladimir M. Aulchenko,Tagir A Kh Aushev,T. Aziz,A. M. Bakich,Vladislav Balagura, Y. Ban,Elisabetta L. Barberio, A. Bay,I. V. Bedny,M. Belhorn,K. S. Belous,V. N. Bhardwaj,Bipul Bhuyan,M. Bischofberger,S. C. Blyth,Alex E. Bondar,Giovanni Bonvicini,Andrzej Bozek,Marko Bračko,Jolanta Brodzicka,O. Brovchenko,Thomas E. Browder,M. C. Chang,P. Chang,Yuan Chào,A. Chen,Kaifeng Chen,Pisin Chen,Byunggu Cheon,Ruslan N. Chistov,I. S. Cho,K. Cho,Kiseok Choi,S. K. Choi,Y. K. Choi,J. D. Crnkovic,J. P. Dalseno,Michael V. Danilov,Aron C. Das,Zdeněk Doležal,Zbyněk Drásal,Alexey G. Drutskoy,Y. T. Duh,W. Dungel,D. Dutta,Simon I. Eidelman,Denis A. Epifanov,Selda Esen,James E. Fast,Michael Feindt,M. Fujikawa,V. Gaur,N. I. Gabyshev,Alexei Yu Garmash,Y. M. Goh,Boštjan Golob,Matthias Große-Perdekamp,H. Guo,H. Ha,Junji Haba,Y. L. Han,K. Hara, T. Hara,Y. Hasegawa,K. Hayasaka,Hisaki Hayashii,Daniel M. Heffernan,T. Higuchi,C. T. Hoi,Y. Horii,Y. Hoshi,K. Hoshina,W. S. Hou,Y. B. Hsiung,C. L. Hsu,H. J. Hyun,Y. Igarashi,T. Iijima,Miki Imamura,K. Inami,Akimasa Ishikawa,R. Itoh,M. Iwabuchi,Masahiko Iwasaki, Y. Iwasaki,T. Iwashita,Syuuichi Iwata,Igal Jaeglé,Mark Jones,Neha J. Joshi,T. Danger Julius,Hidekazu Kakuno,Juhwan Kang,Piotr J. Kapusta,S. U. Kataoka,N. Katayama,Hideyuki Kawai,T. Kawasaki,Hiromichi Kichimi,C. Kiesling, H. J. Kim, H. O. Kim, J. B. Kim, Junghyun Kim,Kyutae Kim, M. J. Kim, S. H. Kim,S. K. Kim,T. Y. Kim,Youngjin Kim,K. Kinoshita,B. R. Ko,N. Kobayashi, S. Koblitz,Peter Kodyš,Y. Koga,Samo Korpar,Richard T. Kouzes,Michal Kreps,Peter Križan,Thomas Kuhr,Rajesh Kumar,Tetsuro Kumita,E. Kurihara,Y. Kuroki,A. S. Kuzmin,Peter Kvasnička,Y. J. Kwon,S. H. Kyeong,Jens Sören Lange,I. S. Lee,Moonjoo Lee,Sangeun Lee,Soohyung Lee,Martin Leitgab,Rupert Leitner,Jaeho Li,Yanxi Li,Jim F. Libby,C. L. Lim, A. Limosani,Chihui Liu,Yenwei Liu,Zhiqing Liu,D. Liventsev,Remi Louvot, Jimmy N. Macnaughton,Daniel R. Marlow,Adam Tomasz Matyja,S. McOnie,T. Medvedeva,Y. Mikami,M. Nayak,Kenkichi Miyabayashi,Y. Miyachi,H. Miyata,Yoshito Miyazaki,Roman V. Mizuk,Gagan B. Mohanty,Debabrata K. Mohapatra,Andreas Moll,Takeshi Mori,Th A. Müller,Norihito Muramatsu,Roberto Mussa,Tadashi Nagamine, Y. Nagasaka,Yu Nakahama,Ikuo Nakamura,E. Nakano,T. Nakano, M. Nakao, H. Nakayama,H. Nakazawa,Z. Natkaniec,E. Nedelkovska,Kazushi Neichi,S. Neubauer,C. Ng,Masayuki Niiyama,S. Nishida,K. Nishimura,Osamu Nitoh,S. Noguchi,T. Nozaki,A. Ogawa,S. Ogawa, T. Ohshima,S. Okuno,Stephen Lars Olsen, Y. Onuki,W. Ostrowicz,H. Ozaki,P. N. Pakhlov,Galina V. Pakhlova,Henryk Pałka,Chongwyun Park,H. K. Park,Kwangsun Park,L. S. Peak,Todd K. Pedlar,Tao Peng,Rok Pestotnik,Matthias G. Peters,M. Petrič,Leo E. Piilonen,Anton O. Poluektov,M. Prim,K. Prothmann,Burkard Reisert,Michael W. Ritter,Markus Röhrken,Jamal Rorie,Maria Róz̀anśka,S. Ryu,Himansu Sahoo,K. Sakai, Y. Sakai,D. Santel,Noboru Sasao,Olivier Schneider,Peter Schönmeier,Christoph Schwanda,A. J. Schwartz,Ralf Seidl,A. Sekiya, K. Senyo,O. Seon,Martin E. Sevior,L. Shang,M. M. Shapkin,V. E. Shebalin, C. P. Shen, T. A. Shibata,H. Shibuya,S. Shinomiya,J. G. Shiu,Boris A. Shwartz,Frank Simon,Jaivir B. Singh,Rahul K. Sinha,P. Smerkol, Y. S. Sohn,Anatoli A. Sokolov,Elena N. Solovieva,Samo Stanič,Marko Starič,J. Stypula,S. Sugihara,A. Sugiyama,Mizuki Sumihama, K. Sumisawa,T. Sumiyoshi,Keisuke Suzuki,Sh Suzuki,Sohyamagata Suzuki,H. Takeichi,Masashi Tanaka,S. Tanaka,Nanae Taniguchi,Gocha T. Tatishvili,Geoffrey N. Taylor,Y. Teramoto,I. N. Tikhomirov,Karim Trabelsi,Y. F. Tse,Toru Tsuboyama, Y. W. Tung,M. Uchida,T. Uchida,Y. Uchida,S. Uehara,Koji Ueno,T. Uglov,Matthias Ullrich, Y. Unno,S. Uno,Phillip Urquijo,Yutaka Ushiroda,Yu V. Usov,Sven E. Vahsen,P. Vanhoefer,Gary S. Varner,K. E. Varvell,Kim Vervink,Anna Vinokurova,Anselm Vossen,C. H. Wang,Jian Wang,M. Z. Wang, P. Wang,Xiaolong Wang,M. Watanabe, Y. Watanabe,R. Wedd,Marcel W. Werner,E. J. White,J. Wicht,Laurenz Widhalm,Jaroslaw Wiechczynski,Kerry M. Williams,E. Won,T. Y. Wu,B. D. Yabsley,Hitoshi Yamamoto,Jared Yamaoka, Y. Yamashita,M. Yamauchi,C. Z. Yuan,Y. Yusa, D. Zander,C. C. Zhang,L. M. Zhang,Ziping Zhang,L. Zhao,Victor N. Zhilich,P. Zhou,Vladimir V. Zhulanov,Tomi Živko, A. Zupanc,N. Zwahlen,O. Zyukova

Proceedings of the 9th International Conference on Flavor Physics and CP Violation, FPCP 2011（2011）

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摘要

We report the observation of two narrow structures at 10610 MeV/c 2 and 10650 MeV/c2 in the π ±γ(nS) (n = 1,2,3) and π±hb(mP) (m = 1,2) mass spectra that are produced in association with a single charged pion in γ(5S) decays. The measured masses and widths of the two structures averaged over the five final states are M1 = 10608.4 ± 2.0MeV/c2, γ1 = 15.6 ± 2.5 MeV and M 2 = 10653.2 ± 1.5 MeV/c2, γ2 = 14.4 ±3.2 MeV. Analysis favors quantum numbers of IG(J P)=1+(1+) for both states. The results are obtained with a 121.4 fb-1 data sample collected with the Belle detector near the γ(5S) resonance at the KEKB asymmetric-energy e+e- collider.

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