Measurement of the D→K−π+ strong phase difference in ψ(3770)→D0D¯0

6533b7cefe1ef96bd1256f8f

RESEARCH PRODUCT

Measurement of the D→K−π+ strong phase difference in ψ(3770)→D0D¯0

M. Ablikim M.n. Achasov X.c. Ai O. Albayrak M. Albrecht D.j. Ambrose F.f. An Q. An J.z. Bai R. Baldini Ferroli Y. Ban D.w. Bennett J.v. Bennett M. Bertani J.m. Bian E. Boger O. Bondarenko I. Boyko S. Braun Roy A. Briere H. Cai X. Cai O. Cakir A. Calcaterra G.f. Cao S.a. Cetin J.f. Chang G. Chelkov G. Chen H.s. Chen J.c. Chen M.l. Chen S.j. Chen X. Chen X.r. Chen Y.b. Chen H.p. Cheng X.k. Chu Y.p. Chu D. Cronin-hennessy H.l. Dai J.p. Dai D. Dedovich Z.y. Deng A. Denig I. Denysenko M. Destefanis W.m. Ding Y. Ding C. Dong J. Dong L.y. Dong M.y. Dong S.x. Du J.z. Fan J. Fang S.s. Fang Y. Fang L. Fava C.q. Feng C.d. Fu O. Fuks Q. Gao Y. Gao C. Geng K. Goetzen W.x. Gong W. Gradl M. Greco M.h. Gu Y.t. Gu Y.h. Guan L.b. Guo T. Guo Y.p. Guo Z. Haddadi Y.l. Han F.a. Harris K.l. He M. He Z.y. He T. Held Y.k. Heng Z.l. Hou C. Hu H.m. Hu J.f. Hu T. Hu G.m. Huang G.s. Huang H.p. Huang J.s. Huang L. Huang X.t. Huang Y. Huang T. Hussain C.s. Ji Q. Ji Q.p. Ji X.b. Ji X.l. Ji L.l. Jiang L.w. Jiang X.s. Jiang J.b. Jiao Z. Jiao D.p. Jin S. Jin T. Johansson A. Julin N. Kalantar-nayestanaki X.l. Kang X.s. Kang M. Kavatsyuk B. Kloss B. Kopf M. Kornicer W. Kuehn A. Kupsc W. Lai J.s. Lange M. Lara P. Larin M. Leyhe C.h. Li Cheng Li Cui Li D. Li D.m. Li F. Li G. Li H.b. Li J.c. Li Jin Li K. Li K. Li Lei Li P.r. Li Q.j. Li T. Li W.d. Li W.g. Li X.l. Li X.n. Li X.q. Li Z.b. Li H. Liang Y.f. Liang Y.t. Liang D.x. Lin B.j. Liu C.l. Liu C.x. Liu F.h. Liu Fang Liu Feng Liu H.b. Liu H.h. Liu H.m. Liu J. Liu J.p. Liu K. Liu K.y. Liu P.l. Liu Q. Liu S.b. Liu X. Liu Y.b. Liu Z.a. Liu Zhiqiang Liu Zhiqing Liu H. Loehner X.c. Lou G.r. Lu H.j. Lu H.l. Lu J.g. Lu Y. Lu Y.p. Lu C.l. Luo M.x. Luo T. Luo X.l. Luo M. Lv X.r. Lyu F.c. Ma H.l. Ma Q.m. Ma S. Ma T. Ma X.y. Ma F.e. Maas M. Maggiora Q.a. Malik Y.j. Mao Z.p. Mao J.g. Messchendorp J. Min T.j. Min R.e. Mitchell X.h. Mo Y.j. Mo H. Moeini C. Morales Morales K. Moriya N.yu. Muchnoi H. Muramatsu Y. Nefedov F. Nerling I.b. Nikolaev Z. Ning S. Nisar X.y. Niu S.l. Olsen Q. Ouyang S. Pacetti M. Pelizaeus H.p. Peng K. Peters J.l. Ping R.g. Ping R. Poling M. Qi S. Qian C.f. Qiao L.q. Qin N. Qin X.s. Qin Y. Qin Z.h. Qin J.f. Qiu K.h. Rashid C.f. Redmer M. Ripka G. Rong X.d. Ruan A. Sarantsev K. Schoenning S. Schumann W. Shan M. Shao C.p. Shen X.y. Shen H.y. Sheng M.r. Shepherd W.m. Song X.y. Song S. Spataro B. Spruck G.x. Sun J.f. Sun S.s. Sun Y.j. Sun Y.z. Sun Z.j. Sun Z.t. Sun C.j. Tang X. Tang I. Tapan E.h. Thorndike M. Tiemens D. Toth M. Ullrich I. Uman G.s. Varner B. Wang D. Wang D.y. Wang K. Wang L.l. Wang L.s. Wang M. Wang P. Wang P.l. Wang Q.j. Wang S.g. Wang W. Wang X.f. Wang Y.d. Wang Y.f. Wang Y.q. Wang Z. Wang Z.g. Wang Z.h. Wang Z.y. Wang D.h. Wei J.b. Wei P. Weidenkaff S.p. Wen M. Werner U. Wiedner M. Wolke L.h. Wu N. Wu Z. Wu L.g. Xia Y. Xia D. Xiao Z.j. Xiao Y.g. Xie Q.l. Xiu G.f. Xu L. Xu Q.j. Xu Q.n. Xu X.p. Xu Z. Xue L. Yan W.b. Yan W.c. Yan Y.h. Yan H.x. Yang L. Yang Y. Yang Y.x. Yang H. Ye M. Ye M.h. Ye B.x. Yu C.x. Yu H.w. Yu J.s. Yu S.p. Yu C.z. Yuan W.l. Yuan Y. Yuan A. Yuncu A.a. Zafar A. Zallo S.l. Zang Y. Zeng B.x. Zhang B.y. Zhang C. Zhang C.b. Zhang C.c. Zhang D.h. Zhang H.h. Zhang H.y. Zhang J.j. Zhang J.q. Zhang J.w. Zhang J.y. Zhang J.z. Zhang S.h. Zhang X.j. Zhang X.y. Zhang Y. Zhang Y.h. Zhang Z.h. Zhang Z.p. Zhang Z.y. Zhang G. Zhao J.w. Zhao Lei Zhao Ling Zhao M.g. Zhao Q. Zhao Q.w. Zhao S.j. Zhao T.c. Zhao X.h. Zhao Y.b. Zhao Z.g. Zhao A. Zhemchugov B. Zheng J.p. Zheng Y.h. Zheng B. Zhong L. Zhou Li Zhou X. Zhou X.k. Zhou X.r. Zhou X.y. Zhou K. Zhu K.j. Zhu X.l. Zhu Y.c. Zhu Y.s. Zhu Z.a. Zhu J. Zhuang B.s. Zou J.h. Zou

subject

Phase difference Physics Nuclear and High Energy Physics media_common.quotation_subject Electron–positron annihilation Quantum mechanics Analytical chemistry Pi CP violation 7. Clean energy Asymmetry media_common

description

Abstract We study D 0 D ¯ 0 pairs produced in e + e − collisions at s = 3.773 GeV using a data sample of 2.92 fb−1 collected with the BESIII detector. We measured the asymmetry A K π CP of the branching fractions of D → K − π + in CP-odd and CP-even eigenstates to be ( 12.7 ± 1.3 ± 0.7 ) × 10 − 2 . A K π CP can be used to extract the strong phase difference δ K π between the doubly Cabibbo-suppressed process D ¯ 0 → K − π + and the Cabibbo-favored process D 0 → K − π + . Using world-average values of external parameters, we obtain cos δ K π = 1.02 ± 0.11 ± 0.06 ± 0.01 . Here, the first and second uncertainties are statistical and systematic, respectively, while the third uncertainty arises from the external parameters. This is the most precise measurement of δ K π to date.

year	journal	country	edition	language
2014-06-01	Physics Letters B

https://doi.org/10.1016/j.physletb.2014.05.071