Measurement of the wrong-sign decays D0→K+π-π0 and D0→K+π-π+π-, and search for CP violation

X. C. Tian, Y. Ban, K. Abe, K. Abe, H. Aihara, K. Arinstein, Y. Asano, V. Aulchenko, T. Aushev, A. M. Bakich, S. Banerjee, E. Barberio, M. Barbero, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. BozekM. Bračko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, J. Dalseno, M. Danilov, M. Dash, L. Y. Dong, A. Drutskoy, S. Eidelman, Y. Enari, F. Fang, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, A. Goriek, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, T. Iijima, K. Ikado, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, Y. Iwasaki, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, S. K. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Krian, P. Krokovny, R. Kulasiri, C. C. Kuo, A. Kuzmin, Y. J. Kwon, G. Leder, S. E. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori

Research output: Contribution to journal › Article

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Abstract

Using 281fb-1 of data from the Belle experiment recorded at or near the Υ(4S) resonance, we have measured the rates of the "wrong-sign" decays D0→K+π-π0 and D0→K+π-π+π- relative to those of the Cabibbo-favored decays D0→K-π+π0 and D0→K-π+π+π-. These wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via D0-D̄0 mixing; the latter has not yet been observed. We obtain RWS(Kππ0)=[0.229±0.015(stat)-0.009+0.013(syst)]% and RWS(K3π)=[0.320±0.018(stat)-0.013+0.018(syst)]%. The CP asymmetries are measured to be -0.006±0.053 and -0.018±0.044 for the K+π-π0 and K+π-π+π- final states, respectively.

Original languageEnglish
Article number231801
JournalPhysical Review Letters
Volume95
Issue number23
DOIs
Publication statusPublished - 2005 Dec 2

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CP violation
decay
asymmetry

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Tian, X. C., Ban, Y., Abe, K., Abe, K., Aihara, H., Arinstein, K., ... Mori, T. (2005). Measurement of the wrong-sign decays D0→K+π-π0 and D0→K+π-π+π-, and search for CP violation. Physical Review Letters, 95(23), [231801]. https://doi.org/10.1103/PhysRevLett.95.231801
Tian, X. C. ; Ban, Y. ; Abe, K. ; Abe, K. ; Aihara, H. ; Arinstein, K. ; Asano, Y. ; Aulchenko, V. ; Aushev, T. ; Bakich, A. M. ; Banerjee, S. ; Barberio, E. ; Barbero, M. ; Bay, A. ; Bedny, I. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T. E. ; Chang, P. ; Chao, Y. ; Chen, A. ; Chen, K. F. ; Chen, W. T. ; Cheon, B. G. ; Chistov, R. ; Choi, S. K. ; Choi, Y. ; Choi, Y. K. ; Chuvikov, A. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Dong, L. Y. ; Drutskoy, A. ; Eidelman, S. ; Enari, Y. ; Fang, F. ; Fratina, S. ; Gabyshev, N. ; Gershon, T. ; Gokhroo, G. ; Golob, B. ; Goriek, A. ; Haba, J. ; Hara, T. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W. S. ; Iijima, T. ; Ikado, K. ; Imoto, A. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, Y. ; Kang, J. H. ; Kang, J. S. ; Kapusta, P. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Khan, H. R. ; Kichimi, H. ; Kim, S. K. ; Kim, S. M. ; Kinoshita, K. ; Korpar, S. ; Krian, P. ; Krokovny, P. ; Kulasiri, R. ; Kuo, C. C. ; Kuzmin, A. ; Kwon, Y. J. ; Leder, G. ; Lee, S. E. ; Lesiak, T. ; Li, J. ; Lin, S. W. ; Liventsev, D. ; Mandl, F. ; Matsumoto, T. ; Matyja, A. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Moloney, G. R. ; Mori, T. / Measurement of the wrong-sign decays D0→K+π-π0 and D0→K+π-π+π-, and search for CP violation. In: Physical Review Letters. 2005 ; Vol. 95, No. 23.
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title = "Measurement of the wrong-sign decays D0→K+π-π0 and D0→K+π-π+π-, and search for CP violation",
abstract = "Using 281fb-1 of data from the Belle experiment recorded at or near the Υ(4S) resonance, we have measured the rates of the {"}wrong-sign{"} decays D0→K+π-π0 and D0→K+π-π+π- relative to those of the Cabibbo-favored decays D0→K-π+π0 and D0→K-π+π+π-. These wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via D0-D̄0 mixing; the latter has not yet been observed. We obtain RWS(Kππ0)=[0.229±0.015(stat)-0.009+0.013(syst)]{\%} and RWS(K3π)=[0.320±0.018(stat)-0.013+0.018(syst)]{\%}. The CP asymmetries are measured to be -0.006±0.053 and -0.018±0.044 for the K+π-π0 and K+π-π+π- final states, respectively.",
author = "Tian, {X. C.} and Y. Ban and K. Abe and K. Abe and H. Aihara and K. Arinstein and Y. Asano and V. Aulchenko and T. Aushev and Bakich, {A. M.} and S. Banerjee and E. Barberio and M. Barbero and A. Bay and I. Bedny and U. Bitenc and I. Bizjak and S. Blyth and A. Bondar and A. Bozek and M. Bračko and J. Brodzicka and Browder, {T. E.} and P. Chang and Y. Chao and A. Chen and Chen, {K. F.} and Chen, {W. T.} and Cheon, {B. G.} and R. Chistov and Choi, {S. K.} and Y. Choi and Choi, {Y. K.} and A. Chuvikov and J. Dalseno and M. Danilov and M. Dash and Dong, {L. Y.} and A. Drutskoy and S. Eidelman and Y. Enari and F. Fang and S. Fratina and N. Gabyshev and T. Gershon and G. Gokhroo and B. Golob and A. Goriek and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and M. Hazumi and T. Hokuue and Y. Hoshi and S. Hou and Hou, {W. S.} and T. Iijima and K. Ikado and A. Imoto and K. Inami and A. Ishikawa and R. Itoh and Y. Iwasaki and Kang, {J. H.} and Kang, {J. S.} and P. Kapusta and N. Katayama and H. Kawai and T. Kawasaki and Khan, {H. R.} and H. Kichimi and Kim, {S. K.} and Kim, {S. M.} and K. Kinoshita and S. Korpar and P. Krian and P. Krokovny and R. Kulasiri and Kuo, {C. C.} and A. Kuzmin and Kwon, {Y. J.} and G. Leder and Lee, {S. E.} and T. Lesiak and J. Li and Lin, {S. W.} and D. Liventsev and F. Mandl and T. Matsumoto and A. Matyja and W. Mitaroff and K. Miyabayashi and H. Miyake and H. Miyata and Y. Miyazaki and R. Mizuk and Moloney, {G. R.} and T. Mori",
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language = "English",
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Tian, XC, Ban, Y, Abe, K, Abe, K, Aihara, H, Arinstein, K, Asano, Y, Aulchenko, V, Aushev, T, Bakich, AM, Banerjee, S, Barberio, E, Barbero, M, Bay, A, Bedny, I, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chang, P, Chao, Y, Chen, A, Chen, KF, Chen, WT, Cheon, BG, Chistov, R, Choi, SK, Choi, Y, Choi, YK, Chuvikov, A, Dalseno, J, Danilov, M, Dash, M, Dong, LY, Drutskoy, A, Eidelman, S, Enari, Y, Fang, F, Fratina, S, Gabyshev, N, Gershon, T, Gokhroo, G, Golob, B, Goriek, A, Haba, J, Hara, T, Hayasaka, K, Hayashii, H, Hazumi, M, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Iijima, T, Ikado, K, Imoto, A, Inami, K, Ishikawa, A, Itoh, R, Iwasaki, Y, Kang, JH, Kang, JS, Kapusta, P, Katayama, N, Kawai, H, Kawasaki, T, Khan, HR, Kichimi, H, Kim, SK, Kim, SM, Kinoshita, K, Korpar, S, Krian, P, Krokovny, P, Kulasiri, R, Kuo, CC, Kuzmin, A, Kwon, YJ, Leder, G, Lee, SE, Lesiak, T, Li, J, Lin, SW, Liventsev, D, Mandl, F, Matsumoto, T, Matyja, A, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Moloney, GR & Mori, T 2005, 'Measurement of the wrong-sign decays D0→K+π-π0 and D0→K+π-π+π-, and search for CP violation', Physical Review Letters, vol. 95, no. 23, 231801. https://doi.org/10.1103/PhysRevLett.95.231801

Measurement of the wrong-sign decays D0→K+π-π0 and D0→K+π-π+π-, and search for CP violation. / Tian, X. C.; Ban, Y.; Abe, K.; Abe, K.; Aihara, H.; Arinstein, K.; Asano, Y.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Banerjee, S.; Barberio, E.; Barbero, M.; Bay, A.; Bedny, I.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, A.; Chen, K. F.; Chen, W. T.; Cheon, B. G.; Chistov, R.; Choi, S. K.; Choi, Y.; Choi, Y. K.; Chuvikov, A.; Dalseno, J.; Danilov, M.; Dash, M.; Dong, L. Y.; Drutskoy, A.; Eidelman, S.; Enari, Y.; Fang, F.; Fratina, S.; Gabyshev, N.; Gershon, T.; Gokhroo, G.; Golob, B.; Goriek, A.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W. S.; Iijima, T.; Ikado, K.; Imoto, A.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Kang, J. H.; Kang, J. S.; Kapusta, P.; Katayama, N.; Kawai, H.; Kawasaki, T.; Khan, H. R.; Kichimi, H.; Kim, S. K.; Kim, S. M.; Kinoshita, K.; Korpar, S.; Krian, P.; Krokovny, P.; Kulasiri, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y. J.; Leder, G.; Lee, S. E.; Lesiak, T.; Li, J.; Lin, S. W.; Liventsev, D.; Mandl, F.; Matsumoto, T.; Matyja, A.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Mori, T.

In: Physical Review Letters, Vol. 95, No. 23, 231801, 02.12.2005.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Measurement of the wrong-sign decays D0→K+π-π0 and D0→K+π-π+π-, and search for CP violation

AU - Tian, X. C.

AU - Ban, Y.

AU - Abe, K.

AU - Abe, K.

AU - Aihara, H.

AU - Arinstein, K.

AU - Asano, Y.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Banerjee, S.

AU - Barberio, E.

AU - Barbero, M.

AU - Bay, A.

AU - Bedny, I.

AU - Bitenc, U.

AU - Bizjak, I.

AU - Blyth, S.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chang, P.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, K. F.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choi, Y. K.

AU - Chuvikov, A.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, M.

AU - Dong, L. Y.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Enari, Y.

AU - Fang, F.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Golob, B.

AU - Goriek, A.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, S.

AU - Hou, W. S.

AU - Iijima, T.

AU - Ikado, K.

AU - Imoto, A.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kapusta, P.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kim, S. K.

AU - Kim, S. M.

AU - Kinoshita, K.

AU - Korpar, S.

AU - Krian, P.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kuo, C. C.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Leder, G.

AU - Lee, S. E.

AU - Lesiak, T.

AU - Li, J.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Matyja, A.

AU - Mitaroff, W.

AU - Miyabayashi, K.

AU - Miyake, H.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Moloney, G. R.

AU - Mori, T.

PY - 2005/12/2

Y1 - 2005/12/2

N2 - Using 281fb-1 of data from the Belle experiment recorded at or near the Υ(4S) resonance, we have measured the rates of the "wrong-sign" decays D0→K+π-π0 and D0→K+π-π+π- relative to those of the Cabibbo-favored decays D0→K-π+π0 and D0→K-π+π+π-. These wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via D0-D̄0 mixing; the latter has not yet been observed. We obtain RWS(Kππ0)=[0.229±0.015(stat)-0.009+0.013(syst)]% and RWS(K3π)=[0.320±0.018(stat)-0.013+0.018(syst)]%. The CP asymmetries are measured to be -0.006±0.053 and -0.018±0.044 for the K+π-π0 and K+π-π+π- final states, respectively.

AB - Using 281fb-1 of data from the Belle experiment recorded at or near the Υ(4S) resonance, we have measured the rates of the "wrong-sign" decays D0→K+π-π0 and D0→K+π-π+π- relative to those of the Cabibbo-favored decays D0→K-π+π0 and D0→K-π+π+π-. These wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via D0-D̄0 mixing; the latter has not yet been observed. We obtain RWS(Kππ0)=[0.229±0.015(stat)-0.009+0.013(syst)]% and RWS(K3π)=[0.320±0.018(stat)-0.013+0.018(syst)]%. The CP asymmetries are measured to be -0.006±0.053 and -0.018±0.044 for the K+π-π0 and K+π-π+π- final states, respectively.

UR - http://www.scopus.com/inward/record.url?scp=28844482830&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=28844482830&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.95.231801

DO - 10.1103/PhysRevLett.95.231801

M3 - Article

AN - SCOPUS:28844482830

VL - 95

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 23

M1 - 231801

ER -

Tian XC, Ban Y, Abe K, Abe K, Aihara H, Arinstein K et al. Measurement of the wrong-sign decays D0→K+π-π0 and D0→K+π-π+π-, and search for CP violation. Physical Review Letters. 2005 Dec 2;95(23). 231801. https://doi.org/10.1103/PhysRevLett.95.231801

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