Observation of D0 - D̄ 0 Mixing in e+ e- collisions

B. R. Ko; E. Won; I. Adachi; H. Aihara; K. Arinstein; D. M. Asner; V. Aulchenko; T. Aushev; A. Bala; V. Bhardwaj; B. Bhuyan; A. Bobrov; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; D. Červenkov; A. Chen; B. G. Cheon; K. Chilikin; R. Chistov; I. S. Cho; K. Cho; V. Chobanova; S. K. Choi; Y. Choi; D. Cinabro; J. Dalseno; M. Danilov; Z. Doležal; Z. Drásal; D. Dutta; K. Dutta; S. Eidelman; D. Epifanov; H. Farhat; J. E. Fast; T. Ferber; V. Gaur; S. Ganguly; A. Garmash; R. Gillard; R. Glattauer; Y. M. Goh; B. Golob; J. Haba; T. Hara; H. Hayashii; X. H. He; T. Higuchi; Y. Hoshi; W. S. Hou; H. J. Hyun; T. Iijima; A. Ishikawa; R. Itoh; Y. Iwasaki; T. Iwashita; I. Jaegle; T. Julius; T. Kawasaki; C. Kiesling; D. Y. Kim; J. B. Kim; J. H. Kim; M. J. Kim; Y. J. Kim; J. Klucar; P. Kodyš; S. Korpar; P. Križan; P. Krokovny; T. Kuhr; T. Kumita; A. Kuzmin; Y. J. Kwon; J. S. Lange; S. H. Lee; J. Li; Y. Li; J. Libby; C. Liu; Z. Q. Liu; P. Lukin; D. Matvienko; K. Miyabayashi; H. Miyata; G. B. Mohanty; A. Moll; R. Mussa; Y. Nagasaka; E. Nakano; M. Nakao; Z. Natkaniec; M. Nayak; E. Nedelkovska; N. K. Nisar; O. Nitoh; S. Ogawa; S. Okuno; G. Pakhlova; C. W. Park; H. K. Park; T. K. Pedlar; T. Peng; M. Petrič; L. E. Piilonen; M. Ritter; M. Röhrken; A. Rostomyan; S. Ryu; H. Sahoo; Y. Sakai; L. Santelj; T. Sanuki; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; A. J. Schwartz; R. Seidl; O. Seon; M. E. Sevior; M. Shapkin; C. P. Shen; T. A. Shibata; J. G. Shiu; B. Shwartz; A. Sibidanov; F. Simon; J. B. Singh; Y. S. Sohn; A. Sokolov; S. Stanič; M. Starič; M. Steder; T. Sumiyoshi; U. Tamponi; G. Tatishvili; Y. Teramoto; K. Trabelsi; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; P. Urquijo; Y. Usov; S. E. Vahsen; C. Van Hulse; P. Vanhoefer; G. Varner; A. Vinokurova; V. Vorobyev; M. N. Wagner; C. H. Wang; M. Z. Wang; P. Wang; Y. Watanabe; H. Yamamoto; Y. Yamashita; S. Yashchenko; Y. Yook; C. C. Zhang; Z. P. Zhang; V. Zhilich; A. Zupanc

doi:10.1103/PhysRevLett.112.111801

Observation of D⁰ - D̄ ⁰ Mixing in e⁺ e^- collisions

B. R. Ko, E. Won, I. Adachi, H. Aihara, K. Arinstein, D. M. Asner, V. Aulchenko, T. Aushev, A. Bala, V. Bhardwaj, B. Bhuyan, A. Bobrov, A. Bondar, A. Bozek, M. Bračko, T. E. Browder, D. Červenkov, A. Chen, B. G. Cheon, K. ChilikinR. Chistov, I. S. Cho, K. Cho, V. Chobanova, S. K. Choi, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. Doležal, Z. Drásal, D. Dutta, K. Dutta, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, V. Gaur, S. Ganguly, A. Garmash, R. Gillard, R. Glattauer, Y. M. Goh, B. Golob, J. Haba, T. Hara, H. Hayashii, X. H. He, T. Higuchi, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, Y. Iwasaki, T. Iwashita, I. Jaegle, T. Julius, T. Kawasaki, C. Kiesling, D. Y. Kim, J. B. Kim, J. H. Kim, M. J. Kim, Y. J. Kim, J. Klucar, P. Kodyš, S. Korpar, P. Križan, P. Krokovny, T. Kuhr, T. Kumita, A. Kuzmin, Y. J. Kwon, J. S. Lange, S. H. Lee, J. Li, Y. Li, J. Libby, C. Liu, Z. Q. Liu, P. Lukin, D. Matvienko, K. Miyabayashi, H. Miyata, G. B. Mohanty, A. Moll, R. Mussa, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, M. Nayak, E. Nedelkovska, N. K. Nisar, O. Nitoh, S. Ogawa, S. Okuno, G. Pakhlova, C. W. Park, H. K. Park, T. K. Pedlar, T. Peng, M. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, A. Rostomyan, S. Ryu, H. Sahoo, Y. Sakai, L. Santelj, T. Sanuki, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, A. J. Schwartz, R. Seidl, O. Seon, M. E. Sevior, M. Shapkin, C. P. Shen, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, J. B. Singh, Y. S. Sohn, A. Sokolov, S. Stanič, M. Starič, M. Steder, T. Sumiyoshi, U. Tamponi, G. Tatishvili, Y. Teramoto, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, S. E. Vahsen, C. Van Hulse, P. Vanhoefer, G. Varner, A. Vinokurova, V. Vorobyev, M. N. Wagner, C. H. Wang, M. Z. Wang, P. Wang, Y. Watanabe, H. Yamamoto, Y. Yamashita, S. Yashchenko, Y. Yook, C. C. Zhang, Z. P. Zhang, V. Zhilich, A. Zupanc

School of Earth System Sciences

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

We observe D⁰-D̄ ⁰ mixing in the decay D0→K⁺π ^- using a data sample of integrated luminosity 976 fb-1 collected with the Belle detector at the KEKB e ⁺e^- asymmetric-energy collider. We measure the mixing parameters x′ ²=(0.09±0.22)×10^-3 and y′=(4.6±3.4)×10-3 and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates RD=(3.53±0.13)×10^-3, where the uncertainties are statistical and systematic combined. Our measurement excludes the no-mixing hypothesis at the 5.1 standard deviation level.

Original language	English
Article number	111801
Journal	Physical Review Letters
Volume	112
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.112.111801
State	Published - 17 Mar 2014

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10.1103/PhysRevLett.112.111801

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Ko, B. R., Won, E., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Bala, A., Bhardwaj, V., Bhuyan, B., Bobrov, A., Bondar, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chen, A., Cheon, B. G., ... Zupanc, A. (2014). Observation of D⁰ - D̄ ⁰ Mixing in e⁺ e^- collisions. Physical Review Letters, 112(11), Article 111801. https://doi.org/10.1103/PhysRevLett.112.111801

@article{0bf5238935ec4bebb05611a6904101ef,

title = "Observation of D0 - {\=D} 0 Mixing in e+ e- collisions",

abstract = "We observe D0-{\=D} 0 mixing in the decay D0→K+π - using a data sample of integrated luminosity 976 fb-1 collected with the Belle detector at the KEKB e +e- asymmetric-energy collider. We measure the mixing parameters x′ 2=(0.09±0.22)×10-3 and y′=(4.6±3.4)×10-3 and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates RD=(3.53±0.13)×10-3, where the uncertainties are statistical and systematic combined. Our measurement excludes the no-mixing hypothesis at the 5.1 standard deviation level.",

author = "Ko, {B. R.} and E. Won and I. Adachi and H. Aihara and K. Arinstein and Asner, {D. M.} and V. Aulchenko and T. Aushev and A. Bala and V. Bhardwaj and B. Bhuyan and A. Bobrov and A. Bondar and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and Cho, {I. S.} and K. Cho and V. Chobanova and Choi, {S. K.} and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and Z. Dole{\v z}al and Z. Dr{\'a}sal and D. Dutta and K. Dutta and S. Eidelman and D. Epifanov and H. Farhat and Fast, {J. E.} and T. Ferber and V. Gaur and S. Ganguly and A. Garmash and R. Gillard and R. Glattauer and Goh, {Y. M.} and B. Golob and J. Haba and T. Hara and H. Hayashii and He, {X. H.} and T. Higuchi and Y. Hoshi and Hou, {W. S.} and Hyun, {H. J.} and T. Iijima and A. Ishikawa and R. Itoh and Y. Iwasaki and T. Iwashita and I. Jaegle and T. Julius and T. Kawasaki and C. Kiesling and Kim, {D. Y.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {M. J.} and Kim, {Y. J.} and J. Klucar and P. Kody{\v s} and S. Korpar and P. Kri{\v z}an and P. Krokovny and T. Kuhr and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and Lee, {S. H.} and J. Li and Y. Li and J. Libby and C. Liu and Liu, {Z. Q.} and P. Lukin and D. Matvienko and K. Miyabayashi and H. Miyata and Mohanty, {G. B.} and A. Moll and R. Mussa and Y. Nagasaka and E. Nakano and M. Nakao and Z. Natkaniec and M. Nayak and E. Nedelkovska and Nisar, {N. K.} and O. Nitoh and S. Ogawa and S. Okuno and G. Pakhlova and Park, {C. W.} and Park, {H. K.} and Pedlar, {T. K.} and T. Peng and M. Petri{\v c} and Piilonen, {L. E.} and M. Ritter and M. R{\"o}hrken and A. Rostomyan and S. Ryu and H. Sahoo and Y. Sakai and L. Santelj and T. Sanuki and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and Schwartz, {A. J.} and R. Seidl and O. Seon and Sevior, {M. E.} and M. Shapkin and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and A. Sibidanov and F. Simon and Singh, {J. B.} and Sohn, {Y. S.} and A. Sokolov and S. Stani{\v c} and M. Stari{\v c} and M. Steder and T. Sumiyoshi and U. Tamponi and G. Tatishvili and Y. Teramoto and K. Trabelsi and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Usov and Vahsen, {S. E.} and {Van Hulse}, C. and P. Vanhoefer and G. Varner and A. Vinokurova and V. Vorobyev and Wagner, {M. N.} and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Y. Watanabe and H. Yamamoto and Y. Yamashita and S. Yashchenko and Y. Yook and Zhang, {C. C.} and Zhang, {Z. P.} and V. Zhilich and A. Zupanc",

year = "2014",

month = mar,

day = "17",

doi = "10.1103/PhysRevLett.112.111801",

language = "English",

volume = "112",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

}

Ko, BR, Won, E, Adachi, I, Aihara, H, Arinstein, K, Asner, DM, Aulchenko, V, Aushev, T, Bala, A, Bhardwaj, V, Bhuyan, B, Bobrov, A, Bondar, A, Bozek, A, Bračko, M, Browder, TE, Červenkov, D, Chen, A, Cheon, BG, Chilikin, K, Chistov, R, Cho, IS, Cho, K, Chobanova, V, Choi, SK, Choi, Y, Cinabro, D, Dalseno, J, Danilov, M, Doležal, Z, Drásal, Z, Dutta, D, Dutta, K, Eidelman, S, Epifanov, D, Farhat, H, Fast, JE, Ferber, T, Gaur, V, Ganguly, S, Garmash, A, Gillard, R, Glattauer, R, Goh, YM, Golob, B, Haba, J, Hara, T, Hayashii, H, He, XH, Higuchi, T, Hoshi, Y, Hou, WS, Hyun, HJ, Iijima, T, Ishikawa, A, Itoh, R, Iwasaki, Y, Iwashita, T, Jaegle, I, Julius, T, Kawasaki, T, Kiesling, C, Kim, DY, Kim, JB, Kim, JH, Kim, MJ, Kim, YJ, Klucar, J, Kodyš, P, Korpar, S, Križan, P, Krokovny, P, Kuhr, T, Kumita, T, Kuzmin, A, Kwon, YJ, Lange, JS, Lee, SH, Li, J, Li, Y, Libby, J, Liu, C, Liu, ZQ, Lukin, P, Matvienko, D, Miyabayashi, K, Miyata, H, Mohanty, GB, Moll, A, Mussa, R, Nagasaka, Y, Nakano, E, Nakao, M, Natkaniec, Z, Nayak, M, Nedelkovska, E, Nisar, NK, Nitoh, O, Ogawa, S, Okuno, S, Pakhlova, G, Park, CW, Park, HK, Pedlar, TK, Peng, T, Petrič, M, Piilonen, LE, Ritter, M, Röhrken, M, Rostomyan, A, Ryu, S, Sahoo, H, Sakai, Y, Santelj, L, Sanuki, T, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Schwartz, AJ, Seidl, R, Seon, O, Sevior, ME, Shapkin, M, Shen, CP, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Singh, JB, Sohn, YS, Sokolov, A, Stanič, S, Starič, M, Steder, M, Sumiyoshi, T, Tamponi, U, Tatishvili, G, Teramoto, Y, Trabelsi, K, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Urquijo, P, Usov, Y, Vahsen, SE, Van Hulse, C, Vanhoefer, P, Varner, G, Vinokurova, A, Vorobyev, V, Wagner, MN, Wang, CH, Wang, MZ, Wang, P, Watanabe, Y, Yamamoto, H, Yamashita, Y, Yashchenko, S, Yook, Y, Zhang, CC, Zhang, ZP, Zhilich, V & Zupanc, A 2014, 'Observation of D⁰ - D̄ ⁰ Mixing in e⁺ e^- collisions', Physical Review Letters, vol. 112, no. 11, 111801. https://doi.org/10.1103/PhysRevLett.112.111801

TY - JOUR

T1 - Observation of D0 - D̄ 0 Mixing in e+ e- collisions

AU - Ko, B. R.

AU - Won, E.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bala, A.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, I. S.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doležal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Dutta, K.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Gaur, V.

AU - Ganguly, S.

AU - Garmash, A.

AU - Gillard, R.

AU - Glattauer, R.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hara, T.

AU - Hayashii, H.

AU - He, X. H.

AU - Higuchi, T.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, Y.

AU - Iwashita, T.

AU - Jaegle, I.

AU - Julius, T.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, D. Y.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Klucar, J.

AU - Kodyš, P.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Libby, J.

AU - Liu, C.

AU - Liu, Z. Q.

AU - Lukin, P.

AU - Matvienko, D.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Mohanty, G. B.

AU - Moll, A.

AU - Mussa, R.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Natkaniec, Z.

AU - Nayak, M.

AU - Nedelkovska, E.

AU - Nisar, N. K.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Okuno, S.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H. K.

AU - Pedlar, T. K.

AU - Peng, T.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Ritter, M.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, Y.

AU - Santelj, L.

AU - Sanuki, T.

AU - Savinov, V.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Seidl, R.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Singh, J. B.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Stanič, S.

AU - Starič, M.

AU - Steder, M.

AU - Sumiyoshi, T.

AU - Tamponi, U.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Vahsen, S. E.

AU - Van Hulse, C.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Wagner, M. N.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, Y.

AU - Yamamoto, H.

AU - Yamashita, Y.

AU - Yashchenko, S.

AU - Yook, Y.

AU - Zhang, C. C.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zupanc, A.

PY - 2014/3/17

Y1 - 2014/3/17

N2 - We observe D0-D̄ 0 mixing in the decay D0→K+π - using a data sample of integrated luminosity 976 fb-1 collected with the Belle detector at the KEKB e +e- asymmetric-energy collider. We measure the mixing parameters x′ 2=(0.09±0.22)×10-3 and y′=(4.6±3.4)×10-3 and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates RD=(3.53±0.13)×10-3, where the uncertainties are statistical and systematic combined. Our measurement excludes the no-mixing hypothesis at the 5.1 standard deviation level.

AB - We observe D0-D̄ 0 mixing in the decay D0→K+π - using a data sample of integrated luminosity 976 fb-1 collected with the Belle detector at the KEKB e +e- asymmetric-energy collider. We measure the mixing parameters x′ 2=(0.09±0.22)×10-3 and y′=(4.6±3.4)×10-3 and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates RD=(3.53±0.13)×10-3, where the uncertainties are statistical and systematic combined. Our measurement excludes the no-mixing hypothesis at the 5.1 standard deviation level.

UR - http://www.scopus.com/inward/record.url?scp=84897854427&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.112.111801

DO - 10.1103/PhysRevLett.112.111801

M3 - Article

AN - SCOPUS:84897854427

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 111801

ER -

Observation of D0 - D̄ 0 Mixing in e+ e- collisions

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Observation of D⁰ - D̄ ⁰ Mixing in e⁺ e^- collisions