Measurement Of D-0-(D) Over Bar(0) Mixing And Search For Indirect Cp Violation Using D-0 -> K-S(0)Pi(+)Pi(-) Decays

Tai Peng,Takashi Iwashita,D Liventsev,B R Ko, Zhao Ping Zhang,D Epifanov, Y Yook,H Kichimi,V Chekelian,R Pestotnik,S Uehara, Asis Bala,K Hayasaka,P Lukin,T Uglov,V Vorobyev,Dipanwita Dutta,Younghwan Choi, C Z Yuan,R Seidl,S H Lee,W S Hou,I Jaegle,T Sumiyoshi,A Bobrov, G B Mohanty,K Cho,B G Cheon, P Wang,Zhan Qiang Liu,O Frost,B Golob,K Arinstein, T Iijima, A Ishikawa,A Bozek,J Libby,H J Hyun,T Saito, A Vinokurova,Yoshitaka Watanabe, J Fast, C P Shen,L Santelj, G Varner,P Vanhoefer,V Zhilich, H Hayashii, E Ribezl, J B Kim,X H He,Yoshihiro Sakai,J Haba,S Korpar, M Petric,S Ogawa,P Katrenko,T Julius,T Aushev, A Rostomyan,Yusuke Sato,G Bonvicini,R Mizuk,E Solovieva,L E Piilonen,D Y Kim,T K Pedlar,N K Nisar,J Klucar, P Krizan,O Schneider,M Ritter,H Farhat,Z Natkaniec,V Aulchenko,A Moll,Kyoichi Kinoshita,S Uno,E Nedelkovska,I Adachi,Yingjian Li, M E Sevior,V Bhardwaj,T A Shibata,V Gaur,O Nitoh, M Staric, Y Unno,Y S Sohn,K M Williams,Y Hoshi,Mitsuo Watanabe,D Cinabro, T Ferber, S Yashchenko,U Tamponi,H Sahoo,Y M Goh,M Nayak,G Tatishvili,M Z Wang,R Gillard, S Eidelman, P Kodys,A Abdesselam,V Zhulanov, R Mussa,R Ayad, M Nakao, C Schwanda, H Aihara, H J Kim,X L Wang,S Wehle,T Sanuki,C C Zhang,D Santel,H K Park,A Chen,Tomihisa Kawasaki,S Ganguly,V Chobanova,Y Ushiroda,J Dalseno,A Drutskoy,P Krokovny,A J Schwartz,P Pakhlov, D M Asner,M Shapkin,Chao Liu, D Cervenkov,F Simon,K Senyo,Y J Kim,D Semmler, Z Drasal, V Shebalin, M Rohrken,Y Teramoto,C H Wang,H Miyata,A Bondar,C Van Hulse,A Sibidanov,T Kuhr,K Miyabayashi,B Bhuyan,B Kronenbitter,Z Dolezal,R Itoh, S Stanic,J G Shiu, Y Iwasaki, G Schnell, M Danilov,A Sokolov,K Trabelsi, M J Kim,Hirokazu Kawai,J H Kang, V Savinov, P Urquijo, A Kuzmin,K E Varvell, A Zupanc, Erina Kato, Y Liu,R Kumar,T Kumita,S Nishida,S Sandilya,B Shwartz, Y Yamashita,Toshiro Hara, A Garmash,A M Bakich, M N Wagner,E Won,L Li Gioi,I S Cho,Y Usov,M Uchida

PHYSICAL REVIEW D（2014）

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摘要

We report a measurement of D-0-(D) over bar(0) mixing parameters and a search for indirect CP violation through a time-dependent amplitude analysis of D-0 -> K-S(0)pi(+)pi(-) decays. The results are based on 921 fb(-1) of data accumulated with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Assuming CP conservation, we measure the mixing parameters x = (0.56 +/- 0.19(-0.09-0.09)(+0.03+0.06))% and y = (0.30 +/- 0.15(-0.05-0.06)(+0.04+0.03))%, where the errors are statistical, experimental systematic, and systematic due to the amplitude model, respectively. With CP violation allowed, the parameters vertical bar q/p vertical bar = 0.90(-0.15-0.04-0.05)(+0.16+0.05+0.06) and arg(q/p) = (- 6 +/- 11 +/- 3(-4)(+3))degrees are found to be consistent with conservation of CP symmetry in mixing and in the interference between mixing and decay, respectively.

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cp violation

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