Observation of D+→K+η(′ and search for CP violation in D+→π+η(′) decays

E. Won; B. R. Ko; I. Adachi; H. Aihara; K. Arinstein; D. M. Asner; T. Aushev; A. M. Bakich; E. Barberio; A. Bay; V. Bhardwaj; B. Bhuyan; M. Bischofberger; A. Bondar; A. Bozek; M. Bračko; J. Brodzicka; T. E. Browder; P. Chang; A. Chen; P. Chen; B. G. Cheon; K. Chilikin; I. S. Cho; K. Cho; S. K. Choi; Y. Choi; J. Dalseno; M. Danilov; Z. Doležal; Z. Drásal; A. Drutskoy; S. Eidelman; J. E. Fast; V. Gaur; N. Gabyshev; A. Garmash; Y. M. Goh; B. Golob; J. Haba; T. Hara; K. Hayasaka; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; Y. B. Hsiung; H. J. Hyun; T. Iijima; K. Inami; A. Ishikawa; R. Itoh; M. Iwabuchi; Y. Iwasaki; T. Iwashita; N. J. Joshi; T. Julius; J. H. Kang; N. Katayama; T. Kawasaki; H. Kichimi; H. J. Kim; H. O. Kim; J. B. Kim; J. H. Kim; K. T. Kim; M. J. Kim; S. K. Kim; Y. J. Kim; K. Kinoshita; N. Kobayashi; S. Koblitz; P. Kodyš; S. Korpar; P. Križan; T. Kumita; A. Kuzmin; Y. J. Kwon; J. S. Lange; M. J. Lee; S. H. Lee; J. Li; Y. Li; J. Libby; C. L. Lim; C. Liu; Y. Liu; D. Liventsev; R. Louvot; S. McOnie; K. Miyabayashi; H. Miyata; Y. Miyazaki; R. Mizuk; G. B. Mohanty; Y. Nagasaka; E. Nakano; M. Nakao; H. Nakazawa; Z. Natkaniec; S. Neubauer; S. Nishida; K. Nishimura; O. Nitoh; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; Y. Onuki; P. Pakhlov; G. Pakhlova; H. Park; H. K. Park; K. S. Park; R. Pestotnik; M. Petrič; L. E. Piilonen; M. Röhrken; S. Ryu; H. Sahoo; K. Sakai; Y. Sakai; T. Sanuki; O. Schneider; C. Schwanda; A. J. Schwartz; K. Senyo; O. Seon; M. E. Sevior; C. P. Shen; T. A. Shibata; J. G. Shiu; F. Simon; J. B. Singh; P. Smerkol; Y. S. Sohn; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; M. Sumihama; T. Sumiyoshi; S. Suzuki; G. Tatishvili; Y. Teramoto; K. Trabelsi; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; Y. Usov; S. E. Vahsen; G. Varner; A. Vinokurova; C. H. Wang; M. Z. Wang; P. Wang; M. Watanabe; Y. Watanabe; K. M. Williams; B. D. Yabsley; Y. Yamashita; M. Yamauchi; Z. P. Zhang; V. Zhilich; V. Zhulanov; A. Zupanc; O. Zyukova

doi:10.1103/PhysRevLett.107.221801

Observation of D⁺→K⁺η(′ and search for CP violation in D⁺→π⁺η(′) decays

E. Won, B. R. Ko, I. Adachi, H. Aihara, K. Arinstein, D. M. Asner, T. Aushev, A. M. Bakich, E. Barberio, A. Bay, V. Bhardwaj, B. Bhuyan, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, P. Chang, A. ChenP. Chen, B. G. Cheon, K. Chilikin, I. S. Cho, K. Cho, S. K. Choi, Y. Choi, J. Dalseno, M. Danilov, Z. Doležal, Z. Drásal, A. Drutskoy, S. Eidelman, J. E. Fast, V. Gaur, N. Gabyshev, A. Garmash, Y. M. Goh, B. Golob, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Iwashita, N. J. Joshi, T. Julius, J. H. Kang, N. Katayama, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, N. Kobayashi, S. Koblitz, P. Kodyš, S. Korpar, P. Križan, T. Kumita, A. Kuzmin, Y. J. Kwon, J. S. Lange, M. J. Lee, S. H. Lee, J. Li, Y. Li, J. Libby, C. L. Lim, C. Liu, Y. Liu, D. Liventsev, R. Louvot, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, R. Mizuk, G. B. Mohanty, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Neubauer, S. Nishida, K. Nishimura, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, P. Pakhlov, G. Pakhlova, H. Park, H. K. Park, K. S. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Röhrken, S. Ryu, H. Sahoo, K. Sakai, Y. Sakai, T. Sanuki, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, O. Seon, M. E. Sevior, C. P. Shen, T. A. Shibata, J. G. Shiu, F. Simon, J. B. Singh, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, M. Sumihama, T. Sumiyoshi, S. Suzuki, G. Tatishvili, Y. Teramoto, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, S. E. Vahsen, G. Varner, A. Vinokurova, C. H. Wang, M. Z. Wang, P. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, B. D. Yabsley, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova

Department of Physics

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25 Citations (Scopus)

Abstract

We report the first observation of the doubly Cabibbo-suppressed decays D⁺→K⁺η(′) using a 791fb^-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e ⁺e^- collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed D ⁺→π⁺η(′) decays are B(D ⁺→K⁺η)/B(D⁺→π⁺η )=(3.06±0.43±0.14)% and B(D⁺→K⁺η ^′)/B(D⁺→π⁺η ^′)=(3.77±0.39±0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in D⁺ decays, δ_TA, is (72±9)°or (288±9)°. We also report the most precise measurements of CP asymmetries to date: ACPD⁺→π ⁺η=(+1.74±1.13±0.19)% and ACPD⁺→ π⁺η^′=(-0.12±1.12±0.17)%.

Original language	English
Article number	221801
Journal	Physical review letters
Volume	107
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.107.221801
Publication status	Published - 2011 Nov 21

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.107.221801

Cite this

Won, E., Ko, B. R., Adachi, I., Aihara, H., Arinstein, K., Asner, D. M., Aushev, T., Bakich, A. M., Barberio, E., Bay, A., Bhardwaj, V., Bhuyan, B., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, P., ... Zyukova, O. (2011). Observation of D⁺→K⁺η(′ and search for CP violation in D⁺→π⁺η(′) decays. Physical review letters, 107(22), Article 221801. https://doi.org/10.1103/PhysRevLett.107.221801

@article{d57b584ae4ac493b99bed47b913801d7,

title = "Observation of D+→K+η(′ and search for CP violation in D+→π+η(′) decays",

abstract = "We report the first observation of the doubly Cabibbo-suppressed decays D+→K+η(′) using a 791fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e +e- collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed D +→π+η(′) decays are B(D +→K+η)/B(D+→π+η )=(3.06±0.43±0.14)% and B(D+→K+η ′)/B(D+→π+η ′)=(3.77±0.39±0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in D+ decays, δTA, is (72±9)°or (288±9)°. We also report the most precise measurements of CP asymmetries to date: ACPD+→π +η=(+1.74±1.13±0.19)% and ACPD+→ π+η′=(-0.12±1.12±0.17)%.",

author = "E. Won and Ko, {B. R.} and I. Adachi and H. Aihara and K. Arinstein and Asner, {D. M.} and T. Aushev and Bakich, {A. M.} and E. Barberio and A. Bay and V. Bhardwaj and B. Bhuyan and M. Bischofberger and A. Bondar and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and Browder, {T. E.} and P. Chang and A. Chen and P. Chen and Cheon, {B. G.} and K. Chilikin and Cho, {I. S.} and K. Cho and Choi, {S. K.} and Y. Choi and J. Dalseno and M. Danilov and Z. Dole{\v z}al and Z. Dr{\'a}sal and A. Drutskoy and S. Eidelman and Fast, {J. E.} and V. Gaur and N. Gabyshev and A. Garmash and Goh, {Y. M.} and B. Golob and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and Y. Horii and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and Hyun, {H. J.} and T. Iijima and K. Inami and A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Iwashita and Joshi, {N. J.} and T. Julius and Kang, {J. H.} and N. Katayama and T. Kawasaki and H. Kichimi and Kim, {H. J.} and Kim, {H. O.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {K. T.} and Kim, {M. J.} and Kim, {S. K.} and Kim, {Y. J.} and K. Kinoshita and N. Kobayashi and S. Koblitz and P. Kody{\v s} and S. Korpar and P. Kri{\v z}an and T. Kumita and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and Lee, {M. J.} and Lee, {S. H.} and J. Li and Y. Li and J. Libby and Lim, {C. L.} and C. Liu and Y. Liu and D. Liventsev and R. Louvot and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and R. Mizuk and Mohanty, {G. B.} and Y. Nagasaka and E. Nakano and M. Nakao and H. Nakazawa and Z. Natkaniec and S. Neubauer and S. Nishida and K. Nishimura and O. Nitoh and S. Ogawa and T. Ohshima and S. Okuno and Olsen, {S. L.} and Y. Onuki and P. Pakhlov and G. Pakhlova and H. Park and Park, {H. K.} and Park, {K. S.} and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and M. R{\"o}hrken and S. Ryu and H. Sahoo and K. Sakai and Y. Sakai and T. Sanuki and O. Schneider and C. Schwanda and Schwartz, {A. J.} and K. Senyo and O. Seon and Sevior, {M. E.} and Shen, {C. P.} and Shibata, {T. A.} and Shiu, {J. G.} and F. Simon and Singh, {J. B.} and P. Smerkol and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and M. Sumihama and T. Sumiyoshi and S. Suzuki 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 Y. Usov and Vahsen, {S. E.} and G. Varner and A. Vinokurova and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and M. Watanabe and Y. Watanabe and Williams, {K. M.} and Yabsley, {B. D.} and Y. Yamashita and M. Yamauchi and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov and A. Zupanc and O. Zyukova",

year = "2011",

month = nov,

day = "21",

doi = "10.1103/PhysRevLett.107.221801",

language = "English",

volume = "107",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "22",

}

Won, E, Ko, BR, Adachi, I, Aihara, H, Arinstein, K, Asner, DM, Aushev, T, Bakich, AM, Barberio, E, Bay, A, Bhardwaj, V, Bhuyan, B, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chang, P, Chen, A, Chen, P, Cheon, BG, Chilikin, K, Cho, IS, Cho, K, Choi, SK, Choi, Y, Dalseno, J, Danilov, M, Doležal, Z, Drásal, Z, Drutskoy, A, Eidelman, S, Fast, JE, Gaur, V, Gabyshev, N, Garmash, A, Goh, YM, Golob, B, Haba, J, Hara, T, Hayasaka, K, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Iijima, T, Inami, K, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Iwashita, T, Joshi, NJ, Julius, T, Kang, JH, Katayama, N, Kawasaki, T, Kichimi, H, Kim, HJ, Kim, HO, Kim, JB, Kim, JH, Kim, KT, Kim, MJ, Kim, SK, Kim, YJ, Kinoshita, K, Kobayashi, N, Koblitz, S, Kodyš, P, Korpar, S, Križan, P, Kumita, T, Kuzmin, A, Kwon, YJ, Lange, JS, Lee, MJ, Lee, SH, Li, J, Li, Y, Libby, J, Lim, CL, Liu, C, Liu, Y, Liventsev, D, Louvot, R, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mizuk, R, Mohanty, GB, Nagasaka, Y, Nakano, E, Nakao, M, Nakazawa, H, Natkaniec, Z, Neubauer, S, Nishida, S, Nishimura, K, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Onuki, Y, Pakhlov, P, Pakhlova, G, Park, H, Park, HK, Park, KS, Pestotnik, R, Petrič, M, Piilonen, LE, Röhrken, M, Ryu, S, Sahoo, H, Sakai, K, Sakai, Y, Sanuki, T, Schneider, O, Schwanda, C, Schwartz, AJ, Senyo, K, Seon, O, Sevior, ME, Shen, CP, Shibata, TA, Shiu, JG, Simon, F, Singh, JB, Smerkol, P, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumihama, M, Sumiyoshi, T, Suzuki, S, Tatishvili, G, Teramoto, Y, Trabelsi, K, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Usov, Y, Vahsen, SE, Varner, G, Vinokurova, A, Wang, CH, Wang, MZ, Wang, P, Watanabe, M, Watanabe, Y, Williams, KM, Yabsley, BD, Yamashita, Y, Yamauchi, M, Zhang, ZP, Zhilich, V, Zhulanov, V, Zupanc, A & Zyukova, O 2011, 'Observation of D⁺→K⁺η(′ and search for CP violation in D⁺→π⁺η(′) decays', Physical review letters, vol. 107, no. 22, 221801. https://doi.org/10.1103/PhysRevLett.107.221801

TY - JOUR

T1 - Observation of D+→K+η(′ and search for CP violation in D+→π+η(′) decays

AU - Won, E.

AU - Ko, B. R.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Bay, A.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Brodzicka, J.

AU - Browder, T. E.

AU - Chang, P.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, I. S.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doležal, Z.

AU - Drásal, Z.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Fast, J. E.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Iwashita, T.

AU - Joshi, N. J.

AU - Julius, T.

AU - Kang, J. H.

AU - Katayama, N.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, K. T.

AU - Kim, M. J.

AU - Kim, S. K.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Kobayashi, N.

AU - Koblitz, S.

AU - Kodyš, P.

AU - Korpar, S.

AU - Križan, P.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Lee, M. J.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Libby, J.

AU - Lim, C. L.

AU - Liu, C.

AU - Liu, Y.

AU - Liventsev, D.

AU - Louvot, R.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mizuk, R.

AU - Mohanty, G. B.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Neubauer, S.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Park, H.

AU - Park, H. K.

AU - Park, K. S.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Röhrken, M.

AU - Ryu, S.

AU - Sahoo, H.

AU - Sakai, K.

AU - Sakai, Y.

AU - Sanuki, T.

AU - Schneider, O.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shen, C. P.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Simon, F.

AU - Singh, J. B.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumihama, M.

AU - Sumiyoshi, T.

AU - Suzuki, S.

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 - Usov, Y.

AU - Vahsen, S. E.

AU - Varner, G.

AU - Vinokurova, A.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Yabsley, B. D.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

AU - Zupanc, A.

AU - Zyukova, O.

PY - 2011/11/21

Y1 - 2011/11/21

N2 - We report the first observation of the doubly Cabibbo-suppressed decays D+→K+η(′) using a 791fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e +e- collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed D +→π+η(′) decays are B(D +→K+η)/B(D+→π+η )=(3.06±0.43±0.14)% and B(D+→K+η ′)/B(D+→π+η ′)=(3.77±0.39±0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in D+ decays, δTA, is (72±9)°or (288±9)°. We also report the most precise measurements of CP asymmetries to date: ACPD+→π +η=(+1.74±1.13±0.19)% and ACPD+→ π+η′=(-0.12±1.12±0.17)%.

AB - We report the first observation of the doubly Cabibbo-suppressed decays D+→K+η(′) using a 791fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e +e- collider. The ratio of the branching fractions of doubly Cabibbo-suppressed relative to singly Cabibbo-suppressed D +→π+η(′) decays are B(D +→K+η)/B(D+→π+η )=(3.06±0.43±0.14)% and B(D+→K+η ′)/B(D+→π+η ′)=(3.77±0.39±0.10)%. From these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in D+ decays, δTA, is (72±9)°or (288±9)°. We also report the most precise measurements of CP asymmetries to date: ACPD+→π +η=(+1.74±1.13±0.19)% and ACPD+→ π+η′=(-0.12±1.12±0.17)%.

UR - http://www.scopus.com/inward/record.url?scp=81855226202&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=81855226202&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.107.221801

DO - 10.1103/PhysRevLett.107.221801

M3 - Article

AN - SCOPUS:81855226202

SN - 0031-9007

VL - 107

JO - Physical review letters

JF - Physical review letters

IS - 22

M1 - 221801

ER -

Observation of D⁺→K⁺η(′ and search for CP violation in D⁺→π⁺η(′) decays

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