Observation of B±→χc1π± and search for direct CP violation

R. Kumar, J. B. Singh, K. Abe, K. Abe, H. Aihara, D. Anipko, T. Aushev, T. Aziz, A. M. Bakich, V. Balagura, M. Barbero, A. Bay, I. Bedny, K. Belous, U. Bitenc, S. Blyth, A. Bozek, M. Bračko, T. E. Browder, M. C. Chang & 121 others A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, S. Cole, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, A. Gorišek, H. Ha, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, T. Iijima, A. Imoto, K. Inami, R. Itoh, Y. Iwasaki, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, K. Kinoshita, P. Krokovny, C. C. Kuo, Y. J. Kwon, G. Leder, S. W. Lin, D. Liventsev, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, J. Mueller, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Noguchi, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, G. Pakhlova, H. Palka, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, T. Schietinger, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, R. Seidl, M. Shapkin, H. Shibuya, B. Shwartz, V. Sidorov, A. Sokolov, A. Somov, N. Soni, M. Starič, H. Stoeck, S. Suzuki, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, S. Uno, Y. Usov, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M. Z. Wang, Y. Watanabe, Eunil Won, Q. L. Xie, A. Yamaguchi, Y. Yamashita, M. Yamauchi, C. C. Zhang, L. M. Zhang, Z. P. Zhang, A. Zupanc

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We report the first observation of B±→χc1π±, a Cabibbo- and color-suppressed decay in a data sample of 386×106 BB̄ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We observe 55±10 signal events with a statistical significance of 6.3σ including systematic uncertainties. The measured branching fraction and charge-asymmetry is B(B±→χc1π ±)=(2.2±0.4±0.3)×10-5 and Aπ=0.07±0. 18±0.02, respectively. We also determine the ratio B(B±→χ c1π±)/B(B±→χc1K±)=(4.3±0.8±0.3)%.

Original languageEnglish
Article number051103
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume74
Issue number5
DOIs
Publication statusPublished - 2006 Sep 15

Fingerprint

CP Violation
CP violation
Statistical Significance
Asymmetry
Branching
Detector
Charge
asymmetry
Decay
color
Uncertainty
detectors
decay
Energy
Observation
energy
Color

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Observation of B±→χc1π± and search for direct CP violation. / Kumar, R.; Singh, J. B.; Abe, K.; Abe, K.; Aihara, H.; Anipko, D.; Aushev, T.; Aziz, T.; Bakich, A. M.; Balagura, V.; Barbero, M.; Bay, A.; Bedny, I.; Belous, K.; Bitenc, U.; Blyth, S.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, M. C.; Chen, A.; Chen, W. T.; Cheon, B. G.; Chistov, R.; Choi, Y.; Cole, S.; Dalseno, J.; Dash, M.; Drutskoy, A.; Eidelman, S.; Fratina, S.; Gabyshev, N.; Gershon, T.; Gokhroo, G.; Golob, B.; Gorišek, A.; Ha, H.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W. S.; Iijima, T.; Imoto, A.; Inami, K.; Itoh, R.; Iwasaki, Y.; Kang, J. H.; Katayama, N.; Kawai, H.; Kawasaki, T.; Khan, H. R.; Kichimi, H.; Kinoshita, K.; Krokovny, P.; Kuo, C. C.; Kwon, Y. J.; Leder, G.; Lin, S. W.; Liventsev, D.; Mandl, F.; Marlow, D.; Matsumoto, T.; Matyja, A.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Mueller, J.; Nakano, E.; Nakao, M.; Nishida, S.; Nitoh, O.; Noguchi, S.; Ohshima, T.; Okabe, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Palka, H.; Park, H.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Schietinger, T.; Schneider, O.; Schümann, J.; Schwanda, C.; Schwartz, A. J.; Seidl, R.; Shapkin, M.; Shibuya, H.; Shwartz, B.; Sidorov, V.; Sokolov, A.; Somov, A.; Soni, N.; Starič, M.; Stoeck, H.; Suzuki, S.; Takasaki, F.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tian, X. C.; Tikhomirov, I.; Trabelsi, K.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Ueno, K.; Uno, S.; Usov, Y.; Varner, G.; Villa, S.; Wang, C. C.; Wang, C. H.; Wang, M. Z.; Watanabe, Y.; Won, Eunil; Xie, Q. L.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Zhang, C. C.; Zhang, L. M.; Zhang, Z. P.; Zupanc, A.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 74, No. 5, 051103, 15.09.2006.

Research output: Contribution to journalArticle

Kumar, R, Singh, JB, Abe, K, Abe, K, Aihara, H, Anipko, D, Aushev, T, Aziz, T, Bakich, AM, Balagura, V, Barbero, M, Bay, A, Bedny, I, Belous, K, Bitenc, U, Blyth, S, Bozek, A, Bračko, M, Browder, TE, Chang, MC, Chen, A, Chen, WT, Cheon, BG, Chistov, R, Choi, Y, Cole, S, Dalseno, J, Dash, M, Drutskoy, A, Eidelman, S, Fratina, S, Gabyshev, N, Gershon, T, Gokhroo, G, Golob, B, Gorišek, A, Ha, H, Haba, J, Hara, T, Hayasaka, K, Hayashii, H, Hazumi, M, Heffernan, D, Hokuue, T, Hoshi, Y, Hou, S, Hou, WS, Iijima, T, Imoto, A, Inami, K, Itoh, R, Iwasaki, Y, Kang, JH, Katayama, N, Kawai, H, Kawasaki, T, Khan, HR, Kichimi, H, Kinoshita, K, Krokovny, P, Kuo, CC, Kwon, YJ, Leder, G, Lin, SW, Liventsev, D, Mandl, F, Marlow, D, Matsumoto, T, Matyja, A, Mitaroff, W, Miyabayashi, K, Miyake, H, Miyata, H, Miyazaki, Y, Mizuk, R, Moloney, GR, Mueller, J, Nakano, E, Nakao, M, Nishida, S, Nitoh, O, Noguchi, S, Ohshima, T, Okabe, T, Okuno, S, Olsen, SL, Onuki, Y, Ozaki, H, Pakhlov, P, Pakhlova, G, Palka, H, Park, H, Park, KS, Pestotnik, R, Piilonen, LE, Sakai, Y, Schietinger, T, Schneider, O, Schümann, J, Schwanda, C, Schwartz, AJ, Seidl, R, Shapkin, M, Shibuya, H, Shwartz, B, Sidorov, V, Sokolov, A, Somov, A, Soni, N, Starič, M, Stoeck, H, Suzuki, S, Takasaki, F, Tanaka, M, Taylor, GN, Teramoto, Y, Tian, XC, Tikhomirov, I, Trabelsi, K, Tsuboyama, T, Tsukamoto, T, Uehara, S, Uglov, T, Ueno, K, Uno, S, Usov, Y, Varner, G, Villa, S, Wang, CC, Wang, CH, Wang, MZ, Watanabe, Y, Won, E, Xie, QL, Yamaguchi, A, Yamashita, Y, Yamauchi, M, Zhang, CC, Zhang, LM, Zhang, ZP & Zupanc, A 2006, 'Observation of B±→χc1π± and search for direct CP violation', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 74, no. 5, 051103. https://doi.org/10.1103/PhysRevD.74.051103
Kumar, R. ; Singh, J. B. ; Abe, K. ; Abe, K. ; Aihara, H. ; Anipko, D. ; Aushev, T. ; Aziz, T. ; Bakich, A. M. ; Balagura, V. ; Barbero, M. ; Bay, A. ; Bedny, I. ; Belous, K. ; Bitenc, U. ; Blyth, S. ; Bozek, A. ; Bračko, M. ; Browder, T. E. ; Chang, M. C. ; Chen, A. ; Chen, W. T. ; Cheon, B. G. ; Chistov, R. ; Choi, Y. ; Cole, S. ; Dalseno, J. ; Dash, M. ; Drutskoy, A. ; Eidelman, S. ; Fratina, S. ; Gabyshev, N. ; Gershon, T. ; Gokhroo, G. ; Golob, B. ; Gorišek, A. ; Ha, H. ; Haba, J. ; Hara, T. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Heffernan, D. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W. S. ; Iijima, T. ; Imoto, A. ; Inami, K. ; Itoh, R. ; Iwasaki, Y. ; Kang, J. H. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Khan, H. R. ; Kichimi, H. ; Kinoshita, K. ; Krokovny, P. ; Kuo, C. C. ; Kwon, Y. J. ; Leder, G. ; Lin, S. W. ; Liventsev, D. ; Mandl, F. ; Marlow, D. ; Matsumoto, T. ; Matyja, A. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Moloney, G. R. ; Mueller, J. ; Nakano, E. ; Nakao, M. ; Nishida, S. ; Nitoh, O. ; Noguchi, S. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S. L. ; Onuki, Y. ; Ozaki, H. ; Pakhlov, P. ; Pakhlova, G. ; Palka, H. ; Park, H. ; Park, K. S. ; Pestotnik, R. ; Piilonen, L. E. ; Sakai, Y. ; Schietinger, T. ; Schneider, O. ; Schümann, J. ; Schwanda, C. ; Schwartz, A. J. ; Seidl, R. ; Shapkin, M. ; Shibuya, H. ; Shwartz, B. ; Sidorov, V. ; Sokolov, A. ; Somov, A. ; Soni, N. ; Starič, M. ; Stoeck, H. ; Suzuki, S. ; Takasaki, F. ; Tanaka, M. ; Taylor, G. N. ; Teramoto, Y. ; Tian, X. C. ; Tikhomirov, I. ; Trabelsi, K. ; Tsuboyama, T. ; Tsukamoto, T. ; Uehara, S. ; Uglov, T. ; Ueno, K. ; Uno, S. ; Usov, Y. ; Varner, G. ; Villa, S. ; Wang, C. C. ; Wang, C. H. ; Wang, M. Z. ; Watanabe, Y. ; Won, Eunil ; Xie, Q. L. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Zhang, C. C. ; Zhang, L. M. ; Zhang, Z. P. ; Zupanc, A. / Observation of B±→χc1π± and search for direct CP violation. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2006 ; Vol. 74, No. 5.
@article{4c6c70de92ea4bff8a71f1fc92890ab6,
title = "Observation of B±→χc1π± and search for direct CP violation",
abstract = "We report the first observation of B±→χc1π±, a Cabibbo- and color-suppressed decay in a data sample of 386×106 BB̄ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We observe 55±10 signal events with a statistical significance of 6.3σ including systematic uncertainties. The measured branching fraction and charge-asymmetry is B(B±→χc1π ±)=(2.2±0.4±0.3)×10-5 and Aπ=0.07±0. 18±0.02, respectively. We also determine the ratio B(B±→χ c1π±)/B(B±→χc1K±)=(4.3±0.8±0.3){\%}.",
author = "R. Kumar and Singh, {J. B.} and K. Abe and K. Abe and H. Aihara and D. Anipko and T. Aushev and T. Aziz and Bakich, {A. M.} and V. Balagura and M. Barbero and A. Bay and I. Bedny and K. Belous and U. Bitenc and S. Blyth and A. Bozek and M. Bračko and Browder, {T. E.} and Chang, {M. C.} and A. Chen and Chen, {W. T.} and Cheon, {B. G.} and R. Chistov and Y. Choi and S. Cole and J. Dalseno and M. Dash and A. Drutskoy and S. Eidelman and S. Fratina and N. Gabyshev and T. Gershon and G. Gokhroo and B. Golob and A. Gorišek and H. Ha and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and M. Hazumi and D. Heffernan and T. Hokuue and Y. Hoshi and S. Hou and Hou, {W. S.} and T. Iijima and A. Imoto and K. Inami and R. Itoh and Y. Iwasaki and Kang, {J. H.} and N. Katayama and H. Kawai and T. Kawasaki and Khan, {H. R.} and H. Kichimi and K. Kinoshita and P. Krokovny and Kuo, {C. C.} and Kwon, {Y. J.} and G. Leder and Lin, {S. W.} and D. Liventsev and F. Mandl and D. Marlow 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 J. Mueller and E. Nakano and M. Nakao and S. Nishida and O. Nitoh and S. Noguchi and T. Ohshima and T. Okabe and S. Okuno and Olsen, {S. L.} and Y. Onuki and H. Ozaki and P. Pakhlov and G. Pakhlova and H. Palka and H. Park and Park, {K. S.} and R. Pestotnik and Piilonen, {L. E.} and Y. Sakai and T. Schietinger and O. Schneider and J. Sch{\"u}mann and C. Schwanda and Schwartz, {A. J.} and R. Seidl and M. Shapkin and H. Shibuya and B. Shwartz and V. Sidorov and A. Sokolov and A. Somov and N. Soni and M. Starič and H. Stoeck and S. Suzuki and F. Takasaki and M. Tanaka and Taylor, {G. N.} and Y. Teramoto and Tian, {X. C.} and I. Tikhomirov and K. Trabelsi and T. Tsuboyama and T. Tsukamoto and S. Uehara and T. Uglov and K. Ueno and S. Uno and Y. Usov and G. Varner and S. Villa and Wang, {C. C.} and Wang, {C. H.} and Wang, {M. Z.} and Y. Watanabe and Eunil Won and Xie, {Q. L.} and A. Yamaguchi and Y. Yamashita and M. Yamauchi and Zhang, {C. C.} and Zhang, {L. M.} and Zhang, {Z. P.} and A. Zupanc",
year = "2006",
month = "9",
day = "15",
doi = "10.1103/PhysRevD.74.051103",
language = "English",
volume = "74",
journal = "Physical review D: Particles and fields",
issn = "0556-2821",
publisher = "American Institute of Physics Publising LLC",
number = "5",

}

TY - JOUR

T1 - Observation of B±→χc1π± and search for direct CP violation

AU - Kumar, R.

AU - Singh, J. B.

AU - Abe, K.

AU - Abe, K.

AU - Aihara, H.

AU - Anipko, D.

AU - Aushev, T.

AU - Aziz, T.

AU - Bakich, A. M.

AU - Balagura, V.

AU - Barbero, M.

AU - Bay, A.

AU - Bedny, I.

AU - Belous, K.

AU - Bitenc, U.

AU - Blyth, S.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, M. C.

AU - Chen, A.

AU - Chen, W. T.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Choi, Y.

AU - Cole, S.

AU - Dalseno, J.

AU - Dash, M.

AU - Drutskoy, A.

AU - Eidelman, S.

AU - Fratina, S.

AU - Gabyshev, N.

AU - Gershon, T.

AU - Gokhroo, G.

AU - Golob, B.

AU - Gorišek, A.

AU - Ha, H.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hazumi, M.

AU - Heffernan, D.

AU - Hokuue, T.

AU - Hoshi, Y.

AU - Hou, S.

AU - Hou, W. S.

AU - Iijima, T.

AU - Imoto, A.

AU - Inami, K.

AU - Itoh, R.

AU - Iwasaki, Y.

AU - Kang, J. H.

AU - Katayama, N.

AU - Kawai, H.

AU - Kawasaki, T.

AU - Khan, H. R.

AU - Kichimi, H.

AU - Kinoshita, K.

AU - Krokovny, P.

AU - Kuo, C. C.

AU - Kwon, Y. J.

AU - Leder, G.

AU - Lin, S. W.

AU - Liventsev, D.

AU - Mandl, F.

AU - Marlow, D.

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 - Mueller, J.

AU - Nakano, E.

AU - Nakao, M.

AU - Nishida, S.

AU - Nitoh, O.

AU - Noguchi, S.

AU - Ohshima, T.

AU - Okabe, T.

AU - Okuno, S.

AU - Olsen, S. L.

AU - Onuki, Y.

AU - Ozaki, H.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Palka, H.

AU - Park, H.

AU - Park, K. S.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Sakai, Y.

AU - Schietinger, T.

AU - Schneider, O.

AU - Schümann, J.

AU - Schwanda, C.

AU - Schwartz, A. J.

AU - Seidl, R.

AU - Shapkin, M.

AU - Shibuya, H.

AU - Shwartz, B.

AU - Sidorov, V.

AU - Sokolov, A.

AU - Somov, A.

AU - Soni, N.

AU - Starič, M.

AU - Stoeck, H.

AU - Suzuki, S.

AU - Takasaki, F.

AU - Tanaka, M.

AU - Taylor, G. N.

AU - Teramoto, Y.

AU - Tian, X. C.

AU - Tikhomirov, I.

AU - Trabelsi, K.

AU - Tsuboyama, T.

AU - Tsukamoto, T.

AU - Uehara, S.

AU - Uglov, T.

AU - Ueno, K.

AU - Uno, S.

AU - Usov, Y.

AU - Varner, G.

AU - Villa, S.

AU - Wang, C. C.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Watanabe, Y.

AU - Won, Eunil

AU - Xie, Q. L.

AU - Yamaguchi, A.

AU - Yamashita, Y.

AU - Yamauchi, M.

AU - Zhang, C. C.

AU - Zhang, L. M.

AU - Zhang, Z. P.

AU - Zupanc, A.

PY - 2006/9/15

Y1 - 2006/9/15

N2 - We report the first observation of B±→χc1π±, a Cabibbo- and color-suppressed decay in a data sample of 386×106 BB̄ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We observe 55±10 signal events with a statistical significance of 6.3σ including systematic uncertainties. The measured branching fraction and charge-asymmetry is B(B±→χc1π ±)=(2.2±0.4±0.3)×10-5 and Aπ=0.07±0. 18±0.02, respectively. We also determine the ratio B(B±→χ c1π±)/B(B±→χc1K±)=(4.3±0.8±0.3)%.

AB - We report the first observation of B±→χc1π±, a Cabibbo- and color-suppressed decay in a data sample of 386×106 BB̄ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We observe 55±10 signal events with a statistical significance of 6.3σ including systematic uncertainties. The measured branching fraction and charge-asymmetry is B(B±→χc1π ±)=(2.2±0.4±0.3)×10-5 and Aπ=0.07±0. 18±0.02, respectively. We also determine the ratio B(B±→χ c1π±)/B(B±→χc1K±)=(4.3±0.8±0.3)%.

UR - http://www.scopus.com/inward/record.url?scp=33748517412&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33748517412&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.74.051103

DO - 10.1103/PhysRevD.74.051103

M3 - Article

VL - 74

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 5

M1 - 051103

ER -