First measurement of inclusive B→Xsη decays

K. Nishimura; T. E. Browder; I. Adachi; H. Aihara; K. Arinstein; T. Aushev; A. M. Bakich; V. Balagura; E. Barberio; K. Belous; V. Bhardwaj; M. Bischofberger; A. Bondar; A. Bozek; M. Bračko; M. C. Chang; Y. Chao; A. Chen; K. F. Chen; P. Chen; B. G. Cheon; C. C. Chiang; I. S. Cho; Y. Choi; J. Dalseno; M. Danilov; Z. Dolex̌al; A. Drutskoy; S. Eidelman; N. Gabyshev; B. Golob; H. Ha; J. Haba; T. Hara; K. Hayasaka; H. Hayashii; Y. Horii; Y. Hoshi; W. S. Hou; H. J. Hyun; T. Iijima; K. Inami; R. Itoh; M. Iwabuchi; Y. Iwasaki; N. J. Joshi; T. Julius; J. H. Kang; P. Kapusta; H. Kawai; T. Kawasaki; H. Kichimi; C. Kiesling; H. J. Kim; H. O. Kim; M. J. Kim; Y. J. Kim; K. Kinoshita; B. R. Ko; P. Kodyš; S. Korpar; P. Krix̌an; T. Kumita; A. Kuzmin; Y. J. Kwon; S. H. Kyeong; J. S. Lange; M. J. Lee; S. H. Lee; J. Li; C. Liu; Y. Liu; D. Liventsev; R. Louvot; A. Matyja; S. McOnie; K. Miyabayashi; H. Miyata; Y. Miyazaki; G. B. Mohanty; T. Mori; E. Nakano; M. Nakao; H. Nakazawa; Z. Natkaniec; S. Nishida; S. Ogawa; T. Ohshima; S. L. Olsen; W. Ostrowicz; G. Pakhlova; C. W. Park; H. Park; H. K. Park; K. S. Park; R. Pestotnik; M. Petrič; L. E. Piilonen; M. Röhrken; S. Ryu; H. Sahoo; Y. Sakai; O. Schneider; C. Schwanda; A. J. Schwartz; K. Senyo; O. Seon; M. E. Sevior; M. Shapkin; C. P. Shen; J. G. Shiu; F. Simon; P. Smerkol; A. Sokolov; E. Solovieva; M. Starič; T. Sumiyoshi; S. Suzuki; Y. Teramoto; K. Trabelsi; S. Uehara; T. Uglov; Y. Unno; S. Uno; G. Varner; K. E. Varvell; K. Vervink; C. H. Wang; M. Z. Wang; P. Wang; Y. Watanabe; J. Wicht; K. M. Williams; E. Won; Y. Yamashita; M. Yamauchi; C. C. Zhang; Z. P. Zhang; P. Zhou; V. Zhulanov; T. Zivko; A. Zupanc; O. Zyukova

doi:10.1103/PhysRevLett.105.191803

First measurement of inclusive B→X_sη decays

K. Nishimura^*, T. E. Browder, I. Adachi, H. Aihara, K. Arinstein, T. Aushev, A. M. Bakich, V. Balagura, E. Barberio, K. Belous, V. Bhardwaj, M. Bischofberger, A. Bondar, A. Bozek, M. Bračko, M. C. Chang, Y. Chao, A. Chen, K. F. Chen, P. ChenB. G. Cheon, C. C. Chiang, I. S. Cho, Y. Choi, J. Dalseno, M. Danilov, Z. Dolex̌al, A. Drutskoy, S. Eidelman, N. Gabyshev, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, K. Inami, R. Itoh, M. Iwabuchi, Y. Iwasaki, N. J. Joshi, T. Julius, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, C. Kiesling, H. J. Kim, H. O. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Kodyš, S. Korpar, P. Krix̌an, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Kyeong, J. S. Lange, M. J. Lee, S. H. Lee, J. Li, C. Liu, Y. Liu, D. Liventsev, R. Louvot, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. B. Mohanty, T. Mori, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, S. Ogawa, T. Ohshima, S. L. Olsen, W. Ostrowicz, G. Pakhlova, C. W. Park, H. Park, H. K. Park, K. S. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Röhrken, S. Ryu, H. Sahoo, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, C. P. Shen, J. G. Shiu, F. Simon, P. Smerkol, A. Sokolov, E. Solovieva, M. Starič, T. Sumiyoshi, S. Suzuki, Y. Teramoto, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, G. Varner, K. E. Varvell, K. Vervink, C. H. Wang, M. Z. Wang, P. Wang, Y. Watanabe, J. Wicht, K. M. Williams, E. Won, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, P. Zhou, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

^*Corresponding author for this work

Department of Physics

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

12 Citations (Scopus)

Abstract

We report a first measurement of inclusive B→X_sη decays, where X_s is a charmless state with unit strangeness. The measurement is based on a pseudoinclusive reconstruction technique and uses a sample of 657×106BB̄ pairs accumulated with the Belle detector at the KEKB e⊃+e⊃- collider. For MX_s<2.6GeV/c₂, we measure a branching fraction of [26.1±3.0(stat)-2.1+1.9(syst)-7.1+4. 0(model)]×10^-5 and a direct CP asymmetry of AC _P=-0.13±0.04-0.03+0.02. Over half of the signal occurs in the range MX_s>1.8GeV/c₂.

Original language	English
Article number	191803
Journal	Physical review letters
Volume	105
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.105.191803
Publication status	Published - 2010 Nov 5

Bibliographical note

Funding Information:
This work, supported by European Community under the contract of Association between EURATOM/CEA, was carried out within the framework of the European Fusion Development Agreement (EFDA).

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.105.191803

Cite this

Nishimura, K., Browder, T. E., Adachi, I., Aihara, H., Arinstein, K., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Belous, K., Bhardwaj, V., Bischofberger, M., Bondar, A., Bozek, A., Bračko, M., Chang, M. C., Chao, Y., Chen, A., Chen, K. F., ... Zyukova, O. (2010). First measurement of inclusive B→X_sη decays. Physical review letters, 105(19), Article 191803. https://doi.org/10.1103/PhysRevLett.105.191803

Nishimura, K, Browder, TE, Adachi, I, Aihara, H, Arinstein, K, Aushev, T, Bakich, AM, Balagura, V, Barberio, E, Belous, K, Bhardwaj, V, Bischofberger, M, Bondar, A, Bozek, A, Bračko, M, Chang, MC, Chao, Y, Chen, A, Chen, KF, Chen, P, Cheon, BG, Chiang, CC, Cho, IS, Choi, Y, Dalseno, J, Danilov, M, Dolex̌al, Z, Drutskoy, A, Eidelman, S, Gabyshev, N, Golob, B, Ha, H, Haba, J, Hara, T, Hayasaka, K, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hyun, HJ, Iijima, T, Inami, K, Itoh, R, Iwabuchi, M, Iwasaki, Y, Joshi, NJ, Julius, T, Kang, JH, Kapusta, P, Kawai, H, Kawasaki, T, Kichimi, H, Kiesling, C, Kim, HJ, Kim, HO, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Kodyš, P, Korpar, S, Krix̌an, P, Kumita, T, Kuzmin, A, Kwon, YJ, Kyeong, SH, Lange, JS, Lee, MJ, Lee, SH, Li, J, Liu, C, Liu, Y, Liventsev, D, Louvot, R, Matyja, A, McOnie, S, Miyabayashi, K, Miyata, H, Miyazaki, Y, Mohanty, GB, Mori, T, Nakano, E, Nakao, M, Nakazawa, H, Natkaniec, Z, Nishida, S, Ogawa, S, Ohshima, T, Olsen, SL, Ostrowicz, W, Pakhlova, G, Park, CW, Park, H, Park, HK, Park, KS, Pestotnik, R, Petrič, M, Piilonen, LE, Röhrken, M, Ryu, S, Sahoo, H, Sakai, Y, Schneider, O, Schwanda, C, Schwartz, AJ, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shen, CP, Shiu, JG, Simon, F, Smerkol, P, Sokolov, A, Solovieva, E, Starič, M, Sumiyoshi, T, Suzuki, S, Teramoto, Y, Trabelsi, K, Uehara, S, Uglov, T, Unno, Y, Uno, S, Varner, G, Varvell, KE, Vervink, K, Wang, CH, Wang, MZ, Wang, P, Watanabe, Y, Wicht, J, Williams, KM, Won, E, Yamashita, Y, Yamauchi, M, Zhang, CC, Zhang, ZP, Zhou, P, Zhulanov, V, Zivko, T, Zupanc, A & Zyukova, O 2010, 'First measurement of inclusive B→X_sη decays', Physical review letters, vol. 105, no. 19, 191803. https://doi.org/10.1103/PhysRevLett.105.191803

@article{bd8f1406c44747e58e46235f3ad28d7e,

title = "First measurement of inclusive B→Xsη decays",

abstract = "We report a first measurement of inclusive B→Xsη decays, where Xs is a charmless state with unit strangeness. The measurement is based on a pseudoinclusive reconstruction technique and uses a sample of 657×106B{\=B} pairs accumulated with the Belle detector at the KEKB e⊃+e⊃- collider. For MXs<2.6GeV/c2, we measure a branching fraction of [26.1±3.0(stat)-2.1+1.9(syst)-7.1+4. 0(model)]×10-5 and a direct CP asymmetry of AC P=-0.13±0.04-0.03+0.02. Over half of the signal occurs in the range MXs>1.8GeV/c2.",

author = "K. Nishimura and Browder, \{T. E.\} and I. Adachi and H. Aihara and K. Arinstein and T. Aushev and Bakich, \{A. M.\} and V. Balagura and E. Barberio and K. Belous and V. Bhardwaj and M. Bischofberger and A. Bondar and A. Bozek and M. Bra{\v c}ko and Chang, \{M. C.\} and Y. Chao and A. Chen and Chen, \{K. F.\} and P. Chen and Cheon, \{B. G.\} and Chiang, \{C. C.\} and Cho, \{I. S.\} and Y. Choi and J. Dalseno and M. Danilov and Z. Dole{\v x}al and A. Drutskoy and S. Eidelman and N. Gabyshev and B. Golob and H. Ha and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and Y. Horii and Y. Hoshi and Hou, \{W. S.\} and Hyun, \{H. J.\} and T. Iijima and K. Inami and R. Itoh and M. Iwabuchi and Y. Iwasaki and Joshi, \{N. J.\} and T. Julius and Kang, \{J. H.\} and P. Kapusta and H. Kawai and T. Kawasaki and H. Kichimi and C. Kiesling and Kim, \{H. J.\} and Kim, \{H. O.\} and Kim, \{M. J.\} and Kim, \{Y. J.\} and K. Kinoshita and Ko, \{B. R.\} and P. Kody{\v s} and S. Korpar and P. Kri{\v x}an and T. Kumita and A. Kuzmin and Kwon, \{Y. J.\} and Kyeong, \{S. H.\} and Lange, \{J. S.\} and Lee, \{M. J.\} and Lee, \{S. H.\} and J. Li and C. Liu and Y. Liu and D. Liventsev and R. Louvot and A. Matyja and S. McOnie and K. Miyabayashi and H. Miyata and Y. Miyazaki and Mohanty, \{G. B.\} and T. Mori and E. Nakano and M. Nakao and H. Nakazawa and Z. Natkaniec and S. Nishida and S. Ogawa and T. Ohshima and Olsen, \{S. L.\} and W. Ostrowicz and G. Pakhlova and Park, \{C. W.\} 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 Y. Sakai and O. Schneider and C. Schwanda and Schwartz, \{A. J.\} and K. Senyo and O. Seon and Sevior, \{M. E.\} and M. Shapkin and Shen, \{C. P.\} and Shiu, \{J. G.\} and F. Simon and P. Smerkol and A. Sokolov and E. Solovieva and M. Stari{\v c} and T. Sumiyoshi and S. Suzuki and Y. Teramoto and K. Trabelsi and S. Uehara and T. Uglov and Y. Unno and S. Uno and G. Varner and Varvell, \{K. E.\} and K. Vervink and Wang, \{C. H.\} and Wang, \{M. Z.\} and P. Wang and Y. Watanabe and J. Wicht and Williams, \{K. M.\} and E. Won and Y. Yamashita and M. Yamauchi and Zhang, \{C. C.\} and Zhang, \{Z. P.\} and P. Zhou and V. Zhulanov and T. Zivko and A. Zupanc and O. Zyukova",

note = "Funding Information: This work, supported by European Community under the contract of Association between EURATOM/CEA, was carried out within the framework of the European Fusion Development Agreement (EFDA).",

year = "2010",

month = nov,

day = "5",

doi = "10.1103/PhysRevLett.105.191803",

language = "English",

volume = "105",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "19",

}

TY - JOUR

T1 - First measurement of inclusive B→Xsη decays

AU - Nishimura, K.

AU - Browder, T. E.

AU - Adachi, I.

AU - Aihara, H.

AU - Arinstein, K.

AU - Aushev, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barberio, E.

AU - Belous, K.

AU - Bhardwaj, V.

AU - Bischofberger, M.

AU - Bondar, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Chang, M. C.

AU - Chao, Y.

AU - Chen, A.

AU - Chen, K. F.

AU - Chen, P.

AU - Cheon, B. G.

AU - Chiang, C. C.

AU - Cho, I. S.

AU - Choi, Y.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dolex̌al, Z.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Gabyshev, N.

AU - Golob, B.

AU - Ha, H.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Horii, Y.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hyun, H. J.

AU - Iijima, T.

AU - Inami, K.

AU - Itoh, R.

AU - Iwabuchi, M.

AU - Iwasaki, Y.

AU - Joshi, N. J.

AU - Julius, T.

AU - Kang, J. H.

AU - Kapusta, P.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kiesling, C.

AU - Kim, H. J.

AU - Kim, H. O.

AU - Kim, M. J.

AU - Kim, Y. J.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Kodyš, P.

AU - Korpar, S.

AU - Krix̌an, P.

AU - Kumita, T.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Kyeong, S. H.

AU - Lange, J. S.

AU - Lee, M. J.

AU - Lee, S. H.

AU - Li, J.

AU - Liu, C.

AU - Liu, Y.

AU - Liventsev, D.

AU - Louvot, R.

AU - Matyja, A.

AU - McOnie, S.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Miyazaki, Y.

AU - Mohanty, G. B.

AU - Mori, T.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Nishida, S.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Olsen, S. L.

AU - Ostrowicz, W.

AU - Pakhlova, G.

AU - Park, C. W.

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, Y.

AU - Schneider, O.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Senyo, K.

AU - Seon, O.

AU - Sevior, M. E.

AU - Shapkin, M.

AU - Shen, C. P.

AU - Shiu, J. G.

AU - Simon, F.

AU - Smerkol, P.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Starič, M.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Teramoto, Y.

AU - Trabelsi, K.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Varner, G.

AU - Varvell, K. E.

AU - Vervink, K.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Watanabe, Y.

AU - Wicht, J.

AU - Williams, K. M.

AU - Won, E.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Zhang, C. C.

AU - Zhang, Z. P.

AU - Zhou, P.

AU - Zhulanov, V.

AU - Zivko, T.

AU - Zupanc, A.

AU - Zyukova, O.

N1 - Funding Information: This work, supported by European Community under the contract of Association between EURATOM/CEA, was carried out within the framework of the European Fusion Development Agreement (EFDA).

PY - 2010/11/5

Y1 - 2010/11/5

N2 - We report a first measurement of inclusive B→Xsη decays, where Xs is a charmless state with unit strangeness. The measurement is based on a pseudoinclusive reconstruction technique and uses a sample of 657×106BB̄ pairs accumulated with the Belle detector at the KEKB e⊃+e⊃- collider. For MXs<2.6GeV/c2, we measure a branching fraction of [26.1±3.0(stat)-2.1+1.9(syst)-7.1+4. 0(model)]×10-5 and a direct CP asymmetry of AC P=-0.13±0.04-0.03+0.02. Over half of the signal occurs in the range MXs>1.8GeV/c2.

AB - We report a first measurement of inclusive B→Xsη decays, where Xs is a charmless state with unit strangeness. The measurement is based on a pseudoinclusive reconstruction technique and uses a sample of 657×106BB̄ pairs accumulated with the Belle detector at the KEKB e⊃+e⊃- collider. For MXs<2.6GeV/c2, we measure a branching fraction of [26.1±3.0(stat)-2.1+1.9(syst)-7.1+4. 0(model)]×10-5 and a direct CP asymmetry of AC P=-0.13±0.04-0.03+0.02. Over half of the signal occurs in the range MXs>1.8GeV/c2.

UR - https://www.scopus.com/pages/publications/78149385329

U2 - 10.1103/PhysRevLett.105.191803

DO - 10.1103/PhysRevLett.105.191803

M3 - Article

AN - SCOPUS:78149385329

SN - 0031-9007

VL - 105

JO - Physical review letters

JF - Physical review letters

IS - 19

M1 - 191803

ER -