Measurement of the CP asymmetry in B → Xsγ

S. Nishida; K. Abe; K. Abe; T. Abe; H. Aihara; Y. Asano; T. Aushev; S. Bahinipati; A. M. Bakich; Y. Ban; E. Banas; A. Bay; U. Bitenc; I. Bizjak; S. Blyth; A. Bondar; A. Bozek; M. Bračko; J. Brodzicka; T. E. Browder; M. C. Chang; P. Chang; K. F. Chen; B. G. Cheon; R. Chistov; S. K. Choi; Y. Choi; A. Chuvikov; S. Cole; M. Danilov; M. Dash; L. Y. Dong; J. Dragic; S. Eidelman; V. Eiges; Y. Enari; D. Epifanov; F. Fang; S. Fratina; A. Garmash; T. Gershon; G. Gokhroo; B. Golob; J. Haba; T. Hara; N. C. Hastings; H. Hayashii; M. Hazumi; T. Higuchi; L. Hinz; Y. Hoshi; W. S. Hou; Y. B. Hsiung; T. Iijima; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; M. Iwasaki; Y. Iwasaki; J. H. Kang; J. S. Kang; P. Kapusta; S. U. Kataoka; N. Katayama; T. Kawasaki; H. Kichimi; H. J. Kim; S. K. Kim; T. H. Kim; P. Koppenburg; S. Korpar; P. Križan; P. Krokovny; A. Kuzmin; Y. J. Kwon; J. S. Lange; G. Leder; S. E. Lee; S. H. Lee; J. Li; S. W. Lin; J. MacNaughton; G. Majumder; F. Mandl; T. Matsumoto; A. Matyja; W. Mitaroff; H. Miyake; R. Mizuk; D. Mohapatra; G. R. Moloney; A. Murakami; T. Nagamine; Y. Nagasaka; E. Nakano; M. Nakao; H. Nakazawa; Z. Natkaniec; O. Nitoh; T. Nozaki; S. Ogawa; T. Ohshima; T. Okabe; S. Okuno; S. L. Olsen; H. Ozaki; P. Pakhlov; H. Palka; C. W. Park; H. Park; M. Peters; L. E. Piilonen; F. J. Ronga; M. Rozanska; Y. Sakai; O. Schneider; J. Schümann; C. Schwanda; S. Semenov; R. Seuster; M. E. Sevior; H. Shibuya; B. Shwartz; A. Somov; N. Soni; R. Stamen; S. Stanič; M. Starič; A. Sugiyama; T. Sumiyoshi; S. Suzuki; O. Tajima; F. Takasaki; K. Tamai; M. Tanaka; Y. Teramoto; T. Tomura; K. Trabelsi; T. Tsuboyama; T. Tsukamoto; S. Uehara; T. Uglov; K. Ueno; Y. Unno; S. Uno; Y. Ushiroda; G. Varner; K. E. Varvell; C. H. Wang; M. Z. Wang; Y. Watanabe; B. D. Yabsley; Y. Yamada; A. Yamaguchi; Y. Yamashita; M. Yamauchi; Heyoung Yang; J. Ying; Z. P. Zhang; V. Zhilich; T. Ziegler; D. Žontar; D. Zürcher

doi:10.1103/PhysRevLett.93.031803

Measurement of the CP asymmetry in B → X_sγ

S. Nishida, K. Abe, K. Abe, T. Abe, H. Aihara, Y. Asano, T. Aushev, S. Bahinipati, A. M. Bakich, Y. Ban, E. Banas, A. Bay, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. BrowderM. C. Chang, P. Chang, K. F. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, A. Chuvikov, S. Cole, M. Danilov, M. Dash, L. Y. Dong, J. Dragic, S. Eidelman, V. Eiges, Y. Enari, D. Epifanov, F. Fang, S. Fratina, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, J. Haba, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, T. Higuchi, L. Hinz, Y. Hoshi, W. S. Hou, Y. B. Hsiung, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, T. H. Kim, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, A. Kuzmin, Y. J. Kwon, J. S. Lange, G. Leder, S. E. Lee, S. H. Lee, J. Li, S. W. Lin, J. MacNaughton, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyake, R. Mizuk, D. Mohapatra, G. R. Moloney, A. Murakami, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, M. Peters, L. E. Piilonen, F. J. Ronga, M. Rozanska, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, S. Semenov, R. Seuster, M. E. Sevior, H. Shibuya, B. Shwartz, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, A. Sugiyama, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, K. Tamai, M. Tanaka, Y. Teramoto, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, C. H. Wang, M. Z. Wang, Y. Watanabe, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Heyoung Yang, J. Ying, Z. P. Zhang, V. Zhilich, T. Ziegler, D. Žontar, D. Zürcher

Department of Physics

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

47 Citations (Scopus)

Abstract

The CP asymmetry in the B → X_sγ, where hadronic recoil system X_s is reconstructed, was investigated using pseudoreconstruction technique. Negligible contamination from b → dγ decays was observed, which were expected to have larger CP asymmetry. The qq̄ and BB̄ distributions were obtained from off-resonance data and Monte Carlo (MC) simulation. The results show that 50% error is assigned to Gaussian width and to ratio of the Gaussian and ARGUS function for rare B decays.

Original language	English
Article number	031803
Pages (from-to)	031803-1-031803-6
Journal	Physical review letters
Volume	93
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.93.031803
Publication status	Published - 2004 Jul 16

Bibliographical note

Funding Information:
We thank the KEKB group for the excellent operation of the accelerator, the KEK Cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the NII for valuable computing and Super-SINET network support. We acknowledge support from MEXT and JSPS (Japan); ARC and DEST (Australia); NSFC (Contract No. 10175071, China); DST (India); the BK21 program of MOEHRD and the CHEP SRC program of KOSEF (Korea); KBN (Contract No. 2P03B 01324, Poland); MIST (Russia); MESS (Slovenia); NSC and MOE (Taiwan); and DOE (U.S.).

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1103/PhysRevLett.93.031803

Cite this

Nishida, S., Abe, K., Abe, K., Abe, T., Aihara, H., Asano, Y., Aushev, T., Bahinipati, S., Bakich, A. M., Ban, Y., Banas, E., Bay, A., Bitenc, U., Bizjak, I., Blyth, S., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., ... Zürcher, D. (2004). Measurement of the CP asymmetry in B → X_sγ. Physical review letters, 93(3), 031803-1-031803-6. Article 031803. https://doi.org/10.1103/PhysRevLett.93.031803

@article{c146d022740a4091bc93d097ea181e7c,

title = "Measurement of the CP asymmetry in B → Xsγ",

abstract = "The CP asymmetry in the B → Xsγ, where hadronic recoil system Xs is reconstructed, was investigated using pseudoreconstruction technique. Negligible contamination from b → dγ decays was observed, which were expected to have larger CP asymmetry. The q{\=q} and B{\=B} distributions were obtained from off-resonance data and Monte Carlo (MC) simulation. The results show that 50% error is assigned to Gaussian width and to ratio of the Gaussian and ARGUS function for rare B decays.",

author = "S. Nishida and K. Abe and K. Abe and T. Abe and H. Aihara and Y. Asano and T. Aushev and S. Bahinipati and Bakich, {A. M.} and Y. Ban and E. Banas and A. Bay and U. Bitenc and I. Bizjak and S. Blyth and A. Bondar and A. Bozek and M. Bra{\v c}ko and J. Brodzicka and Browder, {T. E.} and Chang, {M. C.} and P. Chang and Chen, {K. F.} and Cheon, {B. G.} and R. Chistov and Choi, {S. K.} and Y. Choi and A. Chuvikov and S. Cole and M. Danilov and M. Dash and Dong, {L. Y.} and J. Dragic and S. Eidelman and V. Eiges and Y. Enari and D. Epifanov and F. Fang and S. Fratina and A. Garmash and T. Gershon and G. Gokhroo and B. Golob and J. Haba and T. Hara and Hastings, {N. C.} and H. Hayashii and M. Hazumi and T. Higuchi and L. Hinz and Y. Hoshi and Hou, {W. S.} and Hsiung, {Y. B.} and T. Iijima and K. Inami and A. Ishikawa and H. Ishino and R. Itoh and M. Iwasaki and Y. Iwasaki and Kang, {J. H.} and Kang, {J. S.} and P. Kapusta and Kataoka, {S. U.} and N. Katayama and T. Kawasaki and H. Kichimi and Kim, {H. J.} and Kim, {S. K.} and Kim, {T. H.} and P. Koppenburg and S. Korpar and P. Kri{\v z}an and P. Krokovny and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and G. Leder and Lee, {S. E.} and Lee, {S. H.} and J. Li and Lin, {S. W.} and J. MacNaughton and G. Majumder and F. Mandl and T. Matsumoto and A. Matyja and W. Mitaroff and H. Miyake and R. Mizuk and D. Mohapatra and Moloney, {G. R.} and A. Murakami and T. Nagamine and Y. Nagasaka and E. Nakano and M. Nakao and H. Nakazawa and Z. Natkaniec and O. Nitoh and T. Nozaki and S. Ogawa and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.} and H. Ozaki and P. Pakhlov and H. Palka and Park, {C. W.} and H. Park and M. Peters and Piilonen, {L. E.} and Ronga, {F. J.} and M. Rozanska and Y. Sakai and O. Schneider and J. Sch{\"u}mann and C. Schwanda and S. Semenov and R. Seuster and Sevior, {M. E.} and H. Shibuya and B. Shwartz and A. Somov and N. Soni and R. Stamen and S. Stani{\v c} and M. Stari{\v c} and A. Sugiyama and T. Sumiyoshi and S. Suzuki and O. Tajima and F. Takasaki and K. Tamai and M. Tanaka and Y. Teramoto and T. Tomura and K. Trabelsi and T. Tsuboyama and T. Tsukamoto and S. Uehara and T. Uglov and K. Ueno and Y. Unno and S. Uno and Y. Ushiroda and G. Varner and Varvell, {K. E.} and Wang, {C. H.} and Wang, {M. Z.} and Y. Watanabe and Yabsley, {B. D.} and Y. Yamada and A. Yamaguchi and Y. Yamashita and M. Yamauchi and Heyoung Yang and J. Ying and Zhang, {Z. P.} and V. Zhilich and T. Ziegler and D. {\v Z}ontar and D. Z{\"u}rcher",

note = "Funding Information: We thank the KEKB group for the excellent operation of the accelerator, the KEK Cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the NII for valuable computing and Super-SINET network support. We acknowledge support from MEXT and JSPS (Japan); ARC and DEST (Australia); NSFC (Contract No. 10175071, China); DST (India); the BK21 program of MOEHRD and the CHEP SRC program of KOSEF (Korea); KBN (Contract No. 2P03B 01324, Poland); MIST (Russia); MESS (Slovenia); NSC and MOE (Taiwan); and DOE (U.S.).",

year = "2004",

month = jul,

day = "16",

doi = "10.1103/PhysRevLett.93.031803",

language = "English",

volume = "93",

pages = "031803--1--031803--6",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "3",

}

Nishida, S, Abe, K, Abe, K, Abe, T, Aihara, H, Asano, Y, Aushev, T, Bahinipati, S, Bakich, AM, Ban, Y, Banas, E, Bay, A, Bitenc, U, Bizjak, I, Blyth, S, Bondar, A, Bozek, A, Bračko, M, Brodzicka, J, Browder, TE, Chang, MC, Chang, P, Chen, KF, Cheon, BG, Chistov, R, Choi, SK, Choi, Y, Chuvikov, A, Cole, S, Danilov, M, Dash, M, Dong, LY, Dragic, J, Eidelman, S, Eiges, V, Enari, Y, Epifanov, D, Fang, F, Fratina, S, Garmash, A, Gershon, T, Gokhroo, G, Golob, B, Haba, J, Hara, T, Hastings, NC, Hayashii, H, Hazumi, M, Higuchi, T, Hinz, L, Hoshi, Y, Hou, WS, Hsiung, YB, Iijima, T, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwasaki, M, Iwasaki, Y, Kang, JH, Kang, JS, Kapusta, P, Kataoka, SU, Katayama, N, Kawasaki, T, Kichimi, H, Kim, HJ, Kim, SK, Kim, TH, Koppenburg, P, Korpar, S, Križan, P, Krokovny, P, Kuzmin, A, Kwon, YJ, Lange, JS, Leder, G, Lee, SE, Lee, SH, Li, J, Lin, SW, MacNaughton, J, Majumder, G, Mandl, F, Matsumoto, T, Matyja, A, Mitaroff, W, Miyake, H, Mizuk, R, Mohapatra, D, Moloney, GR, Murakami, A, Nagamine, T, Nagasaka, Y, Nakano, E, Nakao, M, Nakazawa, H, Natkaniec, Z, Nitoh, O, Nozaki, T, Ogawa, S, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlov, P, Palka, H, Park, CW, Park, H, Peters, M, Piilonen, LE, Ronga, FJ, Rozanska, M, Sakai, Y, Schneider, O, Schümann, J, Schwanda, C, Semenov, S, Seuster, R, Sevior, ME, Shibuya, H, Shwartz, B, Somov, A, Soni, N, Stamen, R, Stanič, S, Starič, M, Sugiyama, A, Sumiyoshi, T, Suzuki, S, Tajima, O, Takasaki, F, Tamai, K, Tanaka, M, Teramoto, Y, Tomura, T, Trabelsi, K, Tsuboyama, T, Tsukamoto, T, Uehara, S, Uglov, T, Ueno, K, Unno, Y, Uno, S, Ushiroda, Y, Varner, G, Varvell, KE, Wang, CH, Wang, MZ, Watanabe, Y, Yabsley, BD, Yamada, Y, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Yang, H, Ying, J, Zhang, ZP, Zhilich, V, Ziegler, T, Žontar, D & Zürcher, D 2004, 'Measurement of the CP asymmetry in B → X_sγ', Physical review letters, vol. 93, no. 3, 031803, pp. 031803-1-031803-6. https://doi.org/10.1103/PhysRevLett.93.031803

TY - JOUR

T1 - Measurement of the CP asymmetry in B → Xsγ

AU - Nishida, S.

AU - Abe, K.

AU - Abe, T.

AU - Aihara, H.

AU - Asano, Y.

AU - Aushev, T.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Ban, Y.

AU - Banas, E.

AU - Bay, A.

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, M. C.

AU - Chang, P.

AU - Chen, K. F.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, S. K.

AU - Choi, Y.

AU - Chuvikov, A.

AU - Cole, S.

AU - Danilov, M.

AU - Dash, M.

AU - Dong, L. Y.

AU - Dragic, J.

AU - Eidelman, S.

AU - Eiges, V.

AU - Enari, Y.

AU - Epifanov, D.

AU - Fang, F.

AU - Fratina, S.

AU - Garmash, A.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Golob, B.

AU - Haba, J.

AU - Hara, T.

AU - Hastings, N. C.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Higuchi, T.

AU - Hinz, L.

AU - Hoshi, Y.

AU - Hou, W. S.

AU - Hsiung, Y. B.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Ishino, H.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Kang, J. S.

AU - Kapusta, P.

AU - Kataoka, S. U.

AU - Katayama, N.

AU - Kawasaki, T.

AU - Kichimi, H.

AU - Kim, H. J.

AU - Kim, S. K.

AU - Kim, T. H.

AU - Koppenburg, P.

AU - Korpar, S.

AU - Križan, P.

AU - Krokovny, P.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Leder, G.

AU - Lee, S. E.

AU - Lee, S. H.

AU - Li, J.

AU - Lin, S. W.

AU - MacNaughton, J.

AU - Majumder, G.

AU - Mandl, F.

AU - Matsumoto, T.

AU - Matyja, A.

AU - Mitaroff, W.

AU - Miyake, H.

AU - Mizuk, R.

AU - Mohapatra, D.

AU - Moloney, G. R.

AU - Murakami, A.

AU - Nagamine, T.

AU - Nagasaka, Y.

AU - Nakano, E.

AU - Nakao, M.

AU - Nakazawa, H.

AU - Natkaniec, Z.

AU - Nitoh, O.

AU - Nozaki, T.

AU - Ogawa, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Palka, H.

AU - Park, C. W.

AU - Park, H.

AU - Peters, M.

AU - Piilonen, L. E.

AU - Ronga, F. J.

AU - Rozanska, M.

AU - Sakai, Y.

AU - Schneider, O.

AU - Schümann, J.

AU - Schwanda, C.

AU - Semenov, S.

AU - Seuster, R.

AU - Sevior, M. E.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Somov, A.

AU - Soni, N.

AU - Stamen, R.

AU - Stanič, S.

AU - Starič, M.

AU - Sugiyama, A.

AU - Sumiyoshi, T.

AU - Suzuki, S.

AU - Tajima, O.

AU - Takasaki, F.

AU - Tamai, K.

AU - Tanaka, M.

AU - Teramoto, Y.

AU - Tomura, T.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Ueno, K.

AU - Unno, Y.

AU - Uno, S.

AU - Ushiroda, Y.

AU - Varner, G.

AU - Varvell, K. E.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Watanabe, Y.

AU - Yabsley, B. D.

AU - Yamada, Y.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Yang, Heyoung

AU - Ying, J.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Ziegler, T.

AU - Žontar, D.

AU - Zürcher, D.

N1 - Funding Information: We thank the KEKB group for the excellent operation of the accelerator, the KEK Cryogenics group for the efficient operation of the solenoid, and the KEK computer group and the NII for valuable computing and Super-SINET network support. We acknowledge support from MEXT and JSPS (Japan); ARC and DEST (Australia); NSFC (Contract No. 10175071, China); DST (India); the BK21 program of MOEHRD and the CHEP SRC program of KOSEF (Korea); KBN (Contract No. 2P03B 01324, Poland); MIST (Russia); MESS (Slovenia); NSC and MOE (Taiwan); and DOE (U.S.).

PY - 2004/7/16

Y1 - 2004/7/16

N2 - The CP asymmetry in the B → Xsγ, where hadronic recoil system Xs is reconstructed, was investigated using pseudoreconstruction technique. Negligible contamination from b → dγ decays was observed, which were expected to have larger CP asymmetry. The qq̄ and BB̄ distributions were obtained from off-resonance data and Monte Carlo (MC) simulation. The results show that 50% error is assigned to Gaussian width and to ratio of the Gaussian and ARGUS function for rare B decays.

AB - The CP asymmetry in the B → Xsγ, where hadronic recoil system Xs is reconstructed, was investigated using pseudoreconstruction technique. Negligible contamination from b → dγ decays was observed, which were expected to have larger CP asymmetry. The qq̄ and BB̄ distributions were obtained from off-resonance data and Monte Carlo (MC) simulation. The results show that 50% error is assigned to Gaussian width and to ratio of the Gaussian and ARGUS function for rare B decays.

UR - http://www.scopus.com/inward/record.url?scp=80051544696&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80051544696&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.93.031803

DO - 10.1103/PhysRevLett.93.031803

M3 - Article

AN - SCOPUS:80051544696

SN - 0031-9007

VL - 93

SP - 031803-1-031803-6

JO - Physical review letters

JF - Physical review letters

IS - 3

M1 - 031803

ER -