Measurement of the τ lepton polarization and R(D*) in the decay B¯→D*τ−ν¯τ with one-prong hadronic τ decays at Belle
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, Journal Article
Hirose, S; Iijima, T; Adachi, I; Adamczyk, K; Aihara, H; Al Said, S; Asner, DM; Atmacan, H; Aushev, T; Ayad, R; Aziz, T; Babu, V; Badhrees, I ...
Published in: Physical Review D
January 1, 2018
With the full data sample of 772×106 BB̄ pairs recorded by the Belle detector at the KEKB electron-positron collider, the decay B̄→D∗τ-ν̄τ is studied with the hadronic τ decays τ-→π-ντ and τ-→ρ-ντ. The τ polarization Pτ(D∗) in two-body hadronic τ decays is measured, as well as the ratio of the branching fractions R(D∗)=B(B̄→D∗τ-ν̄τ)/B(B̄→D∗-ν̄), where - denotes an electron or a muon. Our results, Pτ(D∗)=-0.38±0.51(stat)-0.16+0.21(syst) and R(D∗)=0.270±0.035(stat)-0.025+0.028(syst), are consistent with the theoretical predictions of the standard model. The polarization values of Pτ(D∗)>+0.5 are excluded at the 90% confidence level.
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Published In
Physical Review D
DOI
EISSN
2470-0029
ISSN
2470-0010
Publication Date
January 1, 2018
Volume
97
Issue
1
Citation
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Hirose, S., Iijima, T., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., … Miyabayashi, K. (2018). Measurement of the τ lepton polarization and R(D*) in the decay B¯→D*τ−ν¯τ with one-prong hadronic τ decays at Belle. Physical Review D, 97(1). https://doi.org/10.1103/PhysRevD.97.012004
Hirose, S., T. Iijima, I. Adachi, K. Adamczyk, H. Aihara, S. Al Said, D. M. Asner, et al. “Measurement of the τ lepton polarization and R(D*) in the decay B¯→D*τ−ν¯τ with one-prong hadronic τ decays at Belle.” Physical Review D 97, no. 1 (January 1, 2018). https://doi.org/10.1103/PhysRevD.97.012004.
Hirose S, Iijima T, Adachi I, Adamczyk K, Aihara H, Al Said S, et al. Measurement of the τ lepton polarization and R(D*) in the decay B¯→D*τ−ν¯τ with one-prong hadronic τ decays at Belle. Physical Review D. 2018 Jan 1;97(1).
Hirose, S., et al. “Measurement of the τ lepton polarization and R(D*) in the decay B¯→D*τ−ν¯τ with one-prong hadronic τ decays at Belle.” Physical Review D, vol. 97, no. 1, Jan. 2018. Scopus, doi:10.1103/PhysRevD.97.012004.
Hirose S, Iijima T, Adachi I, Adamczyk K, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Ayad R, Aziz T, Babu V, Badhrees I, Bakich AM, Bansal V, Berger M, Bhardwaj V, Bhuyan B, Biswal J, Bondar A, Bozek A, Bračko M, Browder TE, Červenkov D, Chang MC, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Czank T, Dash N, Di Carlo S, DoleŽal Z, Dutta D, Eidelman S, Fast JE, Ferber T, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Golob B, Guan Y, Guido E, Haba J, Hara K, Hayasaka K, Hayashii H, Hedges MT, Higuchi T, Hou WS, Hsu CL, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Jaegle I, Jeon HB, Jin Y, Julius T, Kang KH, Karyan G, Kawasaki T, Kim DY, Kim JB, Kim SH, Kim YJ, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, KriŽan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kumar R, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Li LK, Li Y, Li Gioi L, Libby J, Liventsev D, Lubej M, Matsuda T, Miyabayashi K. Measurement of the τ lepton polarization and R(D*) in the decay B¯→D*τ−ν¯τ with one-prong hadronic τ decays at Belle. Physical Review D. 2018 Jan 1;97(1).
Published In
Physical Review D
DOI
EISSN
2470-0029
ISSN
2470-0010
Publication Date
January 1, 2018
Volume
97
Issue
1