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Evidence for D-0-(D)over-bar(0) mixingopen access

Authors
Staric, M.Golob, B.Abe, K.Abe, K.Adachi, I.Aihara, H.Arinstein, K.Aushev, T.Aziz, T.Bahinipati, S.Bakich, A. M.Balagura, V.Barberio, E.Bay, A.Belous, K.Bitenc, U.Bizjak, I.Blyth, S.Bondar, A.Bozek, A.Bracko, M.Brodzicka, J.Browder, T. E.Chang, P.Chao, Y.Chen, A.Chen, K.-F.Chen, W. T.Cheon, Byung GuChistov, R.Cho, I.-S.Choi, S.-K.Choi, Y.Cole, S.Dalseno, J.Danilov, M.Dash, M.Dragic, J.Drutskoy, A.Eidelman, S.Epifanov, D.Fratina, S.Gabyshev, N.Garmash, A.Gorisek, A.Ha, H.Haba, J.Hara, T.Hastings, N. C.Hayasaka, K.Hayashii, H.Hazumi, M.Heffernan, D.Higuchi, T.Hokuue, T.Hoshi, Y.Hou, W.-S.Iijima, T.Ikado, K.Inami, K.Ishikawa, A.Ishino, H.Itoh, R.Iwasaki, M.Iwasaki, Y.Kaji, H.Kapusta, P.Katayama, N.Kawasaki, T.Kibayashi, A.Kichimi, H.Kim, S. K.Kim, Y. J.Kinoshita, K.Korpar, S.Krizan, P.Krokovny, P.Kumar, R.Kuo, C. C.Kuzmin, A.Kwon, Y.-J.Lange, J. S.Lee, M. J.Lee, S. E.Lesiak, T.Li, J.Limosani, A.Lin, S.-W.Liventsev, D.Mandl, F.Marlow, D.Matsumoto, T.Matyja, A.McOnie, S.Medvedeva, T.Mitaroff, W.Miyabayashi, K.Miyake, H.Miyata, H.Miyazaki, Y.Mizuk, R.Mohapatra, D.Nagasaka, Y.Nakamura, I.Nakano, E.Nakao, M.Nakazawa, H.Natkaniec, Z.Nishida, S.Nitoh, O.Noguchi, S.Nozaki, T.Ogawa, S.Okuno, S.Olsen, S. L.Onuki, Y.Ozaki, H.Pakhlov, P.Pakhlova, G.Palka, H.Pestotnik, R.Piilonen, L. E.Poluektov, A.Rozanska, M.Sahoo, H.Sakai, Y.Satoyama, N.Schneider, O.Mann, J. Schu R.Schwanda, C.Schwartz, A. J.Seidl, R.Senyo, K.Sevior, M. E.Shapkin, M.Shen, C. P.Shibuya, H.Shwartz, B.Sokolov, A.Somov, A.Stanic, S.Stoeck, H.Sumisawa, K.Sumiyoshi, T.Suzuki, S.Suzuki, S. Y.Tajima, O.Takasaki, F.Tamai, K.Tanaka, M.Taylor, G. N.Teramoto, Y.Tian, X. C.Tikhomirov, I.Trabelsi, K.Tsuboyama, T.Tsukamoto, T.Uehara, S.Ueno, K.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Usov, Y.Varner, G.Varvell, K. E.Vervink, K.Villa, S.Vinokurova, A.Wang, C. H.Wang, M.-Z.Watanabe, Y.Wicht, J.Won, E.Xie, Q. L.Yabsley, B. D.Yamaguchi, A.Yamamoto, H.Yamashita, Y.Yamauchi, M.Yuan, C. Z.Yuan, Y.Zhang, C. C.Zhang, L. M.Zhang, Z. P.Zhilich, V.Zupanc, A.
Issue Date
May-2007
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW LETTERS, v.98, no.21, pp.1 - 6
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW LETTERS
Volume
98
Number
21
Start Page
1
End Page
6
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/180193
DOI
10.1103/PhysRevLett.98.211803
ISSN
0031-9007
Abstract
We observe evidence for D-0-(D) over bar (0) mixing by measuring the difference in the apparent lifetime when a D-0 meson decays to the CP eigenstates K+K- and pi(+)pi(-) and when it decays to the final state K-pi(+). We find the relative difference of the lifetimes y(CP) to be [1.31 +/- 0.32(stat)+/- 0.25(syst)]%, 3.2 standard deviations from zero. We also search for a CP asymmetry between D-0 and (D) over bar (0) decays; no evidence for CP violation is found. These results are based on 540 fb(-1) of data recorded by the Belle detector at the KEKB e(+)e(-) collider.
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