Precise measurement of the branching fractions for Bs0→Ds(*) +Ds(*)-and first measurement of the Ds*+Ds*-polarization using e+e- collisions

S. Esen; A. J. Schwartz; H. Aihara; D. M. Asner; T. Aushev; A. M. Bakich; K. Belous; B. Bhuyan; A. Bozek; M. Bračko; T. E. Browder; V. Chekelian; A. Chen; P. Chen; B. G. Cheon; K. Chilikin; R. Chistov; I. S. Cho; K. Cho; Y. Choi; J. Dalseno; M. Danilov; Z. Doležal; A. Drutskoy; S. Eidelman; M. Feindt; V. Gaur; J. Haba; T. Hara; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; Y. B. Hsiung; H. J. Hyun; T. Iijima; A. Ishikawa; R. Itoh; M. Iwabuchi; Y. Iwasaki; T. Iwashita; T. Julius; J. H. Kang; T. Kawasaki; C. Kiesling; H. O. Kim; K. T. Kim; M. J. Kim; Y. J. Kim; K. Kinoshita; B. R. Ko; S. Koblitz; P. Kodyš; S. Korpar; R. T. Kouzes; P. Križan; P. Krokovny; T. Kuhr; T. Kumita; Y. J. Kwon; S. H. Lee; J. Li; Y. Li; J. Libby; C. Liu; Y. Liu; D. Liventsev; R. Louvot; S. McOnie; H. Miyata; R. Mizuk; D. Mohapatra; A. Moll; N. Muramatsu; M. Nakao; H. Nakazawa; Z. Natkaniec; C. Ng; S. Nishida; K. Nishimura; O. Nitoh; T. Ohshima; S. Okuno; S. L. Olsen; Y. Onuki; G. Pakhlova; C. W. Park; H. Park; H. K. Park; T. K. Pedlar; R. Pestotnik; M. Petrič; L. E. Piilonen; M. Röhrken; S. Ryu; Y. Sakai; D. Santel; L. Santelj; T. Sanuki; Y. Sato; O. Schneider; C. Schwanda; K. Senyo; M. E. Sevior; M. Shapkin; T. A. Shibata; J. G. Shiu; B. Shwartz; A. Sibidanov; F. Simon; P. Smerkol; Y. S. Sohn; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; T. Sumiyoshi; G. Tatishvili; Y. Teramoto; K. Trabelsi; T. Tsuboyama; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; S. E. Vahsen; P. Vanhoefer; G. Varner; C. H. Wang; M. Z. Wang; P. Wang; Y. Watanabe; K. M. Williams; E. Won; J. Yamaoka; Y. Yamashita; Z. P. Zhang; V. Zhilich; V. Zhulanov

doi:10.1103/PhysRevD.87.031101

Precise measurement of the branching fractions for Bs0→Ds() +Ds()-and first measurement of the Ds+Ds-polarization using e+^e- collisions

S. Esen, A. J. Schwartz, H. Aihara, D. M. Asner, T. Aushev, A. M. Bakich, K. Belous, B. Bhuyan, A. Bozek, M. Bračko, T. E. Browder, V. Chekelian, A. Chen, P. Chen, B. G. Cheon, K. Chilikin, R. Chistov, I. S. Cho, K. Cho, Y. ChoiJ. Dalseno, M. Danilov, Z. Doležal, A. Drutskoy, S. Eidelman, M. Feindt, V. Gaur, J. Haba, T. Hara, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Iwashita, T. Julius, J. H. Kang, T. Kawasaki, C. Kiesling, H. O. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Koblitz, P. Kodyš, S. Korpar, R. T. Kouzes, P. Križan, P. Krokovny, T. Kuhr, T. Kumita, Y. J. Kwon, S. H. Lee, J. Li, Y. Li, J. Libby, C. Liu, Y. Liu, D. Liventsev, R. Louvot, S. McOnie, H. Miyata, R. Mizuk, D. Mohapatra, A. Moll, N. Muramatsu, M. Nakao, H. Nakazawa, Z. Natkaniec, C. Ng, S. Nishida, K. Nishimura, O. Nitoh, T. Ohshima, S. Okuno, S. L. Olsen, Y. Onuki, G. Pakhlova, C. W. Park, H. Park, H. K. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Röhrken, S. Ryu, Y. Sakai, D. Santel, L. Santelj, T. Sanuki, Y. Sato, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, M. Shapkin, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, T. Sumiyoshi, G. Tatishvili, Y. Teramoto, K. Trabelsi, T. Tsuboyama, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, S. E. Vahsen, P. Vanhoefer, G. Varner, C. H. Wang, M. Z. Wang, P. Wang, Y. Watanabe, K. M. Williams, E. Won, J. Yamaoka, Y. Yamashita, Z. P. Zhang, V. Zhilich, V. Zhulanov

Department of Physics

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39 Citations (Scopus)

Abstract

We have made a precise measurement of the absolute branching fractions of Bs0→Ds(*)+Ds(*)- decays using 121.4 fb^-1 of data recorded by the Belle experiment running at the Υ(5S) resonance. The results are B(Bs0→Ds+Ds-)=(0.58-0.09+0.11±0.13)%, B(Bs0→Ds*±Dsâ̂)=(1.76-0.22+0.23±0.40)%, and B(Bs0→Ds*+Ds*-)=(1.98-0.31-0.50+0.33+0.52)%; the sum is B(Bs0→Ds(*)+Ds(*)-)=(4.32-0.39-1.03+0.42+1.04)%. Assuming Bs0→Ds(*)+Ds(*)- saturates decays to CP-even final states, the branching fraction constrains the ratio ΔΓ_s/ cosâ¡₁₂, where ΔΓ_s is the difference in widths between the two B_s-B_̄s mass eigenstates, and ₁₂ is the CP-violating phase in B_s-B _̄s mixing. We also measure for the first time the longitudinal polarization fraction of Bs0→Ds*+Ds*-; the result is 0.06-0.17+0.18±0.03.

Original language	English
Article number	031101
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	87
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.87.031101
Publication status	Published - 2013 Feb 12

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.87.031101

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Esen, S., Schwartz, A. J., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Belous, K., Bhuyan, B., Bozek, A., Bračko, M., Browder, T. E., Chekelian, V., Chen, A., Chen, P., Cheon, B. G., Chilikin, K., Chistov, R., Cho, I. S., Cho, K., ... Zhulanov, V. (2013). Precise measurement of the branching fractions for Bs0→Ds(*) +Ds(*)-and first measurement of the Ds*+Ds*-polarization using e+^e- collisions. Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(3), Article 031101. https://doi.org/10.1103/PhysRevD.87.031101

Esen, S, Schwartz, AJ, Aihara, H, Asner, DM, Aushev, T, Bakich, AM, Belous, K, Bhuyan, B, Bozek, A, Bračko, M, Browder, TE, Chekelian, V, Chen, A, Chen, P, Cheon, BG, Chilikin, K, Chistov, R, Cho, IS, Cho, K, Choi, Y, Dalseno, J, Danilov, M, Doležal, Z, Drutskoy, A, Eidelman, S, Feindt, M, Gaur, V, Haba, J, Hara, T, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Iijima, T, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Iwashita, T, Julius, T, Kang, JH, Kawasaki, T, Kiesling, C, Kim, HO, Kim, KT, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Koblitz, S, Kodyš, P, Korpar, S, Kouzes, RT, Križan, P, Krokovny, P, Kuhr, T, Kumita, T, Kwon, YJ, Lee, SH, Li, J, Li, Y, Libby, J, Liu, C, Liu, Y, Liventsev, D, Louvot, R, McOnie, S, Miyata, H, Mizuk, R, Mohapatra, D, Moll, A, Muramatsu, N, Nakao, M, Nakazawa, H, Natkaniec, Z, Ng, C, Nishida, S, Nishimura, K, Nitoh, O, Ohshima, T, Okuno, S, Olsen, SL, Onuki, Y, Pakhlova, G, Park, CW, Park, H, Park, HK, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, Röhrken, M, Ryu, S, Sakai, Y, Santel, D, Santelj, L, Sanuki, T, Sato, Y, Schneider, O, Schwanda, C, Senyo, K, Sevior, ME, Shapkin, M, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Smerkol, P, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumiyoshi, T, Tatishvili, G, Teramoto, Y, Trabelsi, K, Tsuboyama, T, Uchida, M, Uehara, S, Uglov, T, Unno, Y, Uno, S, Vahsen, SE, Vanhoefer, P, Varner, G, Wang, CH, Wang, MZ, Wang, P, Watanabe, Y, Williams, KM, Won, E, Yamaoka, J, Yamashita, Y, Zhang, ZP, Zhilich, V & Zhulanov, V 2013, 'Precise measurement of the branching fractions for Bs0→Ds(*) +Ds(*)-and first measurement of the Ds*+Ds*-polarization using e+^e- collisions', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 87, no. 3, 031101. https://doi.org/10.1103/PhysRevD.87.031101

@article{3f2ea63218e1440db9d4625f0d68b190,

title = "Precise measurement of the branching fractions for Bs0→Ds(*) +Ds(*)-and first measurement of the Ds*+Ds*-polarization using e+e- collisions",

abstract = "We have made a precise measurement of the absolute branching fractions of Bs0→Ds(*)+Ds(*)- decays using 121.4 fb-1 of data recorded by the Belle experiment running at the Υ(5S) resonance. The results are B(Bs0→Ds+Ds-)=(0.58-0.09+0.11±0.13)%, B(Bs0→Ds*±Ds{\^a}̂)=(1.76-0.22+0.23±0.40)%, and B(Bs0→Ds*+Ds*-)=(1.98-0.31-0.50+0.33+0.52)%; the sum is B(Bs0→Ds(*)+Ds(*)-)=(4.32-0.39-1.03+0.42+1.04)%. Assuming Bs0→Ds(*)+Ds(*)- saturates decays to CP-even final states, the branching fraction constrains the ratio ΔΓs/ cos{\^a}¡12, where ΔΓs is the difference in widths between the two Bs-{\=B}s mass eigenstates, and 12 is the CP-violating phase in Bs-B{\= }s mixing. We also measure for the first time the longitudinal polarization fraction of Bs0→Ds*+Ds*-; the result is 0.06-0.17+0.18±0.03.",

author = "S. Esen and Schwartz, {A. J.} and H. Aihara and Asner, {D. M.} and T. Aushev and Bakich, {A. M.} and K. Belous and B. Bhuyan and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and V. Chekelian and A. Chen and P. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and Cho, {I. S.} and K. Cho and Y. Choi and J. Dalseno and M. Danilov and Z. Dole{\v z}al and A. Drutskoy and S. Eidelman and M. Feindt and V. Gaur and J. Haba and T. Hara 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 A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Iwashita and T. Julius and Kang, {J. H.} and T. Kawasaki and C. Kiesling and Kim, {H. O.} and Kim, {K. T.} and Kim, {M. J.} and Kim, {Y. J.} and K. Kinoshita and Ko, {B. R.} and S. Koblitz and P. Kody{\v s} and S. Korpar and Kouzes, {R. T.} and P. Kri{\v z}an and P. Krokovny and T. Kuhr and T. Kumita and Kwon, {Y. J.} and Lee, {S. H.} and J. Li and Y. Li and J. Libby and C. Liu and Y. Liu and D. Liventsev and R. Louvot and S. McOnie and H. Miyata and R. Mizuk and D. Mohapatra and A. Moll and N. Muramatsu and M. Nakao and H. Nakazawa and Z. Natkaniec and C. Ng and S. Nishida and K. Nishimura and O. Nitoh and T. Ohshima and S. Okuno and Olsen, {S. L.} and Y. Onuki and G. Pakhlova and Park, {C. W.} and H. Park and Park, {H. K.} and Pedlar, {T. K.} and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and M. R{\"o}hrken and S. Ryu and Y. Sakai and D. Santel and L. Santelj and T. Sanuki and Y. Sato and O. Schneider and C. Schwanda and K. Senyo and Sevior, {M. E.} and M. Shapkin and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and A. Sibidanov and F. Simon and P. Smerkol and Sohn, {Y. S.} and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and T. Sumiyoshi and G. Tatishvili and Y. Teramoto and K. Trabelsi and T. Tsuboyama and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and Vahsen, {S. E.} and P. Vanhoefer and G. Varner and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Y. Watanabe and Williams, {K. M.} and E. Won and J. Yamaoka and Y. Yamashita and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov",

year = "2013",

month = feb,

day = "12",

doi = "10.1103/PhysRevD.87.031101",

language = "English",

volume = "87",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Institute of Physics Publising LLC",

number = "3",

}

TY - JOUR

T1 - Precise measurement of the branching fractions for Bs0→Ds(*) +Ds(*)-and first measurement of the Ds*+Ds*-polarization using e+e- collisions

AU - Esen, S.

AU - Schwartz, A. J.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Belous, K.

AU - Bhuyan, B.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chekelian, V.

AU - Chen, A.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, I. S.

AU - Cho, K.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Doležal, Z.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Feindt, M.

AU - Gaur, V.

AU - Haba, J.

AU - Hara, T.

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 - Ishikawa, A.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Iwashita, T.

AU - Julius, T.

AU - Kang, J. H.

AU - Kawasaki, T.

AU - Kiesling, C.

AU - Kim, H. O.

AU - Kim, K. T.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Koblitz, S.

AU - Kodyš, P.

AU - Korpar, S.

AU - Kouzes, R. T.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuhr, T.

AU - Kumita, T.

AU - Kwon, Y. J.

AU - Lee, S. H.

AU - Li, J.

AU - Li, Y.

AU - Libby, J.

AU - Liu, C.

AU - Liu, Y.

AU - Liventsev, D.

AU - Louvot, R.

AU - McOnie, S.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mohapatra, D.

AU - Moll, A.

AU - Muramatsu, N.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Ng, C.

AU - Nishida, S.

AU - Nishimura, K.

AU - Nitoh, O.

AU - Ohshima, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Pakhlova, G.

AU - Park, C. W.

AU - Park, H.

AU - Park, H. K.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - Röhrken, M.

AU - Ryu, S.

AU - Sakai, Y.

AU - Santel, D.

AU - Santelj, L.

AU - Sanuki, T.

AU - Sato, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Smerkol, P.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Vahsen, S. E.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, Y.

AU - Williams, K. M.

AU - Won, E.

AU - Yamaoka, J.

AU - Yamashita, Y.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

PY - 2013/2/12

Y1 - 2013/2/12

N2 - We have made a precise measurement of the absolute branching fractions of Bs0→Ds(*)+Ds(*)- decays using 121.4 fb-1 of data recorded by the Belle experiment running at the Υ(5S) resonance. The results are B(Bs0→Ds+Ds-)=(0.58-0.09+0.11±0.13)%, B(Bs0→Ds*±Dsâ̂)=(1.76-0.22+0.23±0.40)%, and B(Bs0→Ds*+Ds*-)=(1.98-0.31-0.50+0.33+0.52)%; the sum is B(Bs0→Ds(*)+Ds(*)-)=(4.32-0.39-1.03+0.42+1.04)%. Assuming Bs0→Ds(*)+Ds(*)- saturates decays to CP-even final states, the branching fraction constrains the ratio ΔΓs/ cosâ¡12, where ΔΓs is the difference in widths between the two Bs-B̄s mass eigenstates, and 12 is the CP-violating phase in Bs-B ̄s mixing. We also measure for the first time the longitudinal polarization fraction of Bs0→Ds*+Ds*-; the result is 0.06-0.17+0.18±0.03.

AB - We have made a precise measurement of the absolute branching fractions of Bs0→Ds(*)+Ds(*)- decays using 121.4 fb-1 of data recorded by the Belle experiment running at the Υ(5S) resonance. The results are B(Bs0→Ds+Ds-)=(0.58-0.09+0.11±0.13)%, B(Bs0→Ds*±Dsâ̂)=(1.76-0.22+0.23±0.40)%, and B(Bs0→Ds*+Ds*-)=(1.98-0.31-0.50+0.33+0.52)%; the sum is B(Bs0→Ds(*)+Ds(*)-)=(4.32-0.39-1.03+0.42+1.04)%. Assuming Bs0→Ds(*)+Ds(*)- saturates decays to CP-even final states, the branching fraction constrains the ratio ΔΓs/ cosâ¡12, where ΔΓs is the difference in widths between the two Bs-B̄s mass eigenstates, and 12 is the CP-violating phase in Bs-B ̄s mixing. We also measure for the first time the longitudinal polarization fraction of Bs0→Ds*+Ds*-; the result is 0.06-0.17+0.18±0.03.

UR - http://www.scopus.com/inward/record.url?scp=84874038796&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.87.031101

DO - 10.1103/PhysRevD.87.031101

M3 - Article

AN - SCOPUS:84874038796

SN - 1550-7998

VL - 87

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 3

M1 - 031101

ER -

Precise measurement of the branching fractions for Bs0→Ds() +Ds()-and first measurement of the Ds+Ds-polarization using e+^e- collisions

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