Observation Of A New Charged Charmoniumlike State In B-0 -> J/Psi K- Pi(+) Decays K Chilikin , D Liventsev , B R Ko , Z P Zhang , K Sumisawa , D Epifanov , V Chekelian , V Zhilich , S Uehara , K Hayasaka , S Al Said , P Lukin , T Uglov , E Won , Y Choi , T Mori , K K Joo , G Tatishvili , I Jaegle , H Park , O Grzymkowska , Tetsuya Sumiyoshi , S Okuno , M Ritter , G B Mohanty , K Cho , B G Cheon , Peixiang Wang , O Frost , B Golob , K Arinstein , A Ishikawa , J S Lange , A Bozek , J Libby , H J Hyun , Yoshiyuki Watanabe , Y J Kwon , J Fast , C P Shen , L Santelj , G Varner , P Vanhoefer , H Hayashii , S Uno , X H He , Y Sakai , J Haba , S Korpar , M Petric , S Ogawa , M Huschle , T Julius , T Aushev , A Rostomyan , G Bonvicini , R Mizuk , E Solovieva , L E Piilonen , D Y Kim , T K Pedlar , N K Nisar , P Krizan , O Schneider , M Bracko , H Farhat , Z Natkaniec , V Aulchenko , A Moll , K Kinoshita , M Z Wang , E Nedelkovska , I Adachi , T Aziz , O Seon , Yuanxun Li , J Yamaoka , M N Wagner , T A Shibata , K Dutta , Hidemi Miyata , M Staric , Y Unno , Y S Sohn , K M Williams , Sanmay Ganguly , R Chistov , T Ferber , U Tamponi , S Wehle , M Steder , R Gillard , S Eidelman , Chan Woo Park , S Yashchenko , V Zhulanov , R Mussa , R Ayad , M Nakao , C Schwanda , H Aihara , H J Kim , X L Wang , T Sanuki , A Vinokurova , Aizheng Chen , T Kawasaki , V Chobanova , T E Browder , K Tanida , N Gabyshev , W S Hou , A Drutskoy , P Krokovny , P Pakhlov , D M Asner , Jin Hong Kim , Yusuke Sato , D Cervenkov , F Simon , V Bansal , Yu Jin Kim , Y M Goh , V Shebalin , Y Teramoto , C H Wang , V Gaur , A Bondar , S K Choi , C Van Hulse , A Sibidanov , T Kuhr , K Miyabayashi , D Cinabro , Z Dolezal , R Itoh , J G Shiu , A Zupanc , F Thorne , Y Iwasaki , G Schnell , M Danilov , A Sokolov , K Trabelsi , Myung Joon Kim , E Ribezl , V Savinov , P Urquijo , A Kuzmin , Z Drasal , Y Liu , E Nakano , G Pakhlova , S Nishida , S Sandilya , B Shwartz , T Nanut , T Hara , A Garmash , A M Bakich , C Kiesling , L Li Gioi , M Uchida PHYSICAL REVIEW D（2014）
摘要
We present the results of an amplitude analysis of B-0 --> J/psi K- pi(+) decays. A new charged charmoniumlike state Z(c)(4200)(+) decaying to J/psi pi(+) is observed with a significance of 6.2 sigma. The mass and width of the Z(c)(4200)(+) are 4196(-29-13)(+31+17) MeV/c(2) and 370(-70-132)(+70+70) MeV, respectively; the preferred assignment of the quantum numbers is J(P) = 1(+). In addition, we find evidence for Z(c)(4430)(+) --> J/psi pi(+). The analysis is based on a 711 fb(-1) data sample collected by the Belle detector at the asymmetric-energy e(+)e(-) collider KEKB.
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