Experimental constraints on the spin and parity of the $Z$(4430)$^+$

K Chilikin,D Liventsev,B R Ko,S Vahsen,D Epifanov, Y Yook,H Kichimi,V Chekelian,R Pestotnik,S Uehara,A Bala,K Hayasaka,P Lukin,V Vorobyev,D Dutta,Y Choi, T Mori,Seung Hyun Lee,W S Hou,P Kodys,Tetsuya Sumiyoshi,S Okuno,E Solovieva,M Ritter,G B Mohanty,K Cho,B G Cheon,P Wang,B Golob,D H Kah, T Iijima,A Ishikawa,J S Lange, A Bozek,J Libby,H J Hyun,Toshiyuki Saito, A Vinokurova,Yoshitaka Watanabe,Y J Kwon,M Sumihama,J Fast,Jie Li,L Santelj, G Varner,P Vanhoefer,V Zhilich, H Hayashii,Yoshiharu Sakai,J Haba, Y Yamashita,S Korpar, M Petric,Satoshi Ogawa,T Julius,S L Olsen,T Aushev,A Rostomyan,G Bonvicini,E Won,R Mizuk,K Sakai,J Brodzicka,L E Piilonen,D Y Kim,T K Pedlar,N K Nisar,J Klucar,P Krizan,O Schneider,M Bracko,H Farhat,Z Natkaniec,V Aulchenko,A Moll,K Kinoshita,M Z Wang,E Nedelkovska,Polin Chen,D Matvienko,I Adachi,T Aziz,O Seon, Ying Li,M E Sevior,V Bhardwaj,T A Shibata,V K Gaur,O Nitoh, M Staric, Y Unno,Y S Sohn,K M Williams,Y Hoshi,R Chistov,M Watanabe,C Oswald,D Cinabro,T Ferber,U Tamponi,H Sahoo,M Nayak,G Tatishvili, M Steder,R Gillard, S Eidelman,Chang Won Park, S Yashchenko,V Zhulanov,R Mussa,S Uno,M Nakao, C Schwanda,H Aihara,H J Kim,X L Wang,Hidetaka Yamamoto,T Sanuki,D Santel,Y Horii,H K Park,A Chen,Tadashi Kawasaki,S Ganguly,V Chobanova,T E Browder,K Tanida,N Gabyshev,J Dalseno,P Krokovny, C P Shen,P Pakhlov,D M Asner,Jin Hee Kim, M Shapkin, Charlie Liu,F Simon,K Senyo,Y J Kim,D Semmler,Y M Goh, M Rohrken,Y Teramoto,C H Wang,H Miyata,M N Wagner,A Bondar,S K Choi,K T Kim,C Van Hulse,A Sibidanov,K Miyabayashi,B Bhuyan,N Muramatsu,Y Yusa,Z Dolezal,R Itoh,J G Shiu, Y Iwasaki, G Schnell,M Danilov,A V Sokolov,K Trabelsi,J H Kang, V Savinov,P Urquijo,A Kuzmin,K E Varvell, A Zupanc,E Kato,Y Liu,T Kumita,B D Yabsley,E Nakano,G Pakhlova,S Nishida,S Sandilya,I S Cho,T Hara,K Arinstein, Z P Zhang,A M Bakich,C Ng, J Macnaughton,C Kiesling, A Frey,Y Usov,M Uchida

PHYSICAL REVIEW D（2013）

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摘要

We perform a full amplitude analysis of B-0 -> psi'K+ pi(-) decays, with psi' -> mu + mu- or e+e -, to constrain the spin and parity of the Z(4430)-. The JP = 1(+) hypothesis is favored over the 0(-), 1(-), 2(-) and 2(+) hypotheses at the levels of 3: 4 sigma, 3: 7 sigma, 4: 7 sigma and 5.1 sigma , respectively. The analysis is based on a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance by the Belle detector at the asymmetric-energy e(+)e(-) collider KEKB.

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spin,parity

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