Standard

Measurement of the τ Lepton Polarization and R (D∗) in the Decay B →d∗τ- ν τ. / The BELLE collaboration.

In: Physical Review Letters, Vol. 118, No. 21, 211801, 26.05.2017.

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

Harvard

The BELLE collaboration 2017, 'Measurement of the τ Lepton Polarization and R (D∗) in the Decay B →d∗τ- ν τ', Physical Review Letters, vol. 118, no. 21, 211801. https://doi.org/10.1103/PhysRevLett.118.211801

APA

The BELLE collaboration (2017). Measurement of the τ Lepton Polarization and R (D∗) in the Decay B →d∗τ- ν τ. Physical Review Letters, 118(21), [211801]. https://doi.org/10.1103/PhysRevLett.118.211801

Vancouver

The BELLE collaboration. Measurement of the τ Lepton Polarization and R (D∗) in the Decay B →d∗τ- ν τ. Physical Review Letters. 2017 May 26;118(21):211801. doi: 10.1103/PhysRevLett.118.211801

Author

The BELLE collaboration. / Measurement of the τ Lepton Polarization and R (D∗) in the Decay B →d∗τ- ν τ. In: Physical Review Letters. 2017 ; Vol. 118, No. 21.

BibTeX

@article{8d11e67d8141481a987086f26df488d4,
title = "Measurement of the τ Lepton Polarization and R (D∗) in the Decay B →d∗τ- ν τ",
abstract = "We report the first measurement of the τ lepton polarization Pτ(D∗) in the decay B→D∗τ-ντ as well as a new measurement of the ratio of the branching fractions R(D∗)=B(B→D∗τ-ντ)/B(B→D∗-ν), where - denotes an electron or a muon, and the τ is reconstructed in the modes τ-→π-ντ and τ-→ρ-ντ. We use the full data sample of 772×106 BB pairs recorded with the Belle detector at the KEKB electron-positron collider. 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.",
author = "{The BELLE collaboration} and S. Hirose and T. Iijima and I. Adachi and K. Adamczyk and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and Аульченко, {Владимир Михайлович} and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and E. Barberio and P. Behera and M. Berger and B. Bhuyan and J. Biswal and A. Bondar and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and P. Chang and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and Y. Choi and D. Cinabro and M. Danilov and N. Dash and {Di Carlo}, S. and J. Dingfelder and Z. Dole{\v Z}al and Z. Dr{\'a}sal and S. Eidelman and D. Epifanov and N. Gabyshev and A. Garmash and P. Krokovny and D. Matvienko and V. Shebalin and Y. Usov and V. Zhilich and V. Zhulanov",
note = "We acknowledge Y. Sakaki, M. Tanaka, and R. Watanabe for their invaluable suggestions and help. We thank the KEKB group for excellent operation of the accelerator; the KEK cryogenics group for efficient solenoid operations; and the KEK computer group, the NII, and PNNL/EMSL for valuable computing and SINET5 network support. We acknowledge support from MEXT, JSPS and Nagoya's TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, BK21Plus, WCU, RSRI, FLRFAS project and GSDC of KISTI (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (USA). This work is supported by a Grant-in-Aid for Scientific Research (S) {"}Probing New Physics with TauLepton{"} (No. 26220706) and was partly supported by a Grant-in-Aid for JSPS Fellows (No. 25.3096). Publisher Copyright: {\textcopyright} 2017 American Physical Society.",
year = "2017",
month = may,
day = "26",
doi = "10.1103/PhysRevLett.118.211801",
language = "English",
volume = "118",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "21",

}

RIS

TY - JOUR

T1 - Measurement of the τ Lepton Polarization and R (D∗) in the Decay B →d∗τ- ν τ

AU - The BELLE collaboration

AU - Hirose, S.

AU - Iijima, T.

AU - Adachi, I.

AU - Adamczyk, K.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Аульченко, Владимир Михайлович

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Barberio, E.

AU - Behera, P.

AU - Berger, M.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chang, P.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Danilov, M.

AU - Dash, N.

AU - Di Carlo, S.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Krokovny, P.

AU - Matvienko, D.

AU - Shebalin, V.

AU - Usov, Y.

AU - Zhilich, V.

AU - Zhulanov, V.

N1 - We acknowledge Y. Sakaki, M. Tanaka, and R. Watanabe for their invaluable suggestions and help. We thank the KEKB group for excellent operation of the accelerator; the KEK cryogenics group for efficient solenoid operations; and the KEK computer group, the NII, and PNNL/EMSL for valuable computing and SINET5 network support. We acknowledge support from MEXT, JSPS and Nagoya's TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, BK21Plus, WCU, RSRI, FLRFAS project and GSDC of KISTI (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (USA). This work is supported by a Grant-in-Aid for Scientific Research (S) "Probing New Physics with TauLepton" (No. 26220706) and was partly supported by a Grant-in-Aid for JSPS Fellows (No. 25.3096). Publisher Copyright: © 2017 American Physical Society.

PY - 2017/5/26

Y1 - 2017/5/26

N2 - We report the first measurement of the τ lepton polarization Pτ(D∗) in the decay B→D∗τ-ντ as well as a new measurement of the ratio of the branching fractions R(D∗)=B(B→D∗τ-ντ)/B(B→D∗-ν), where - denotes an electron or a muon, and the τ is reconstructed in the modes τ-→π-ντ and τ-→ρ-ντ. We use the full data sample of 772×106 BB pairs recorded with the Belle detector at the KEKB electron-positron collider. 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.

AB - We report the first measurement of the τ lepton polarization Pτ(D∗) in the decay B→D∗τ-ντ as well as a new measurement of the ratio of the branching fractions R(D∗)=B(B→D∗τ-ντ)/B(B→D∗-ν), where - denotes an electron or a muon, and the τ is reconstructed in the modes τ-→π-ντ and τ-→ρ-ντ. We use the full data sample of 772×106 BB pairs recorded with the Belle detector at the KEKB electron-positron collider. 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.

UR - http://www.scopus.com/inward/record.url?scp=85019758244&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.118.211801

DO - 10.1103/PhysRevLett.118.211801

M3 - Article

VL - 118

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 21

M1 - 211801

ER -

ID: 10181141