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Study of τ− → h−h−h+ντ decays. / The BELLE collaboration.

In: Nuclear and Particle Physics Proceedings, Vol. 287-288, 01.06.2017, p. 221-223.

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Harvard

The BELLE collaboration 2017, 'Study of τ− → h−h−h+ντ decays', Nuclear and Particle Physics Proceedings, vol. 287-288, pp. 221-223. https://doi.org/10.1016/j.nuclphysbps.2017.04.001

APA

The BELLE collaboration (2017). Study of τ− → h−h−h+ντ decays. Nuclear and Particle Physics Proceedings, 287-288, 221-223. https://doi.org/10.1016/j.nuclphysbps.2017.04.001

Vancouver

The BELLE collaboration. Study of τ− → h−h−h+ντ decays. Nuclear and Particle Physics Proceedings. 2017 Jun 1;287-288:221-223. doi: 10.1016/j.nuclphysbps.2017.04.001

Author

The BELLE collaboration. / Study of τ− → h−h−h+ντ decays. In: Nuclear and Particle Physics Proceedings. 2017 ; Vol. 287-288. pp. 221-223.

BibTeX

@article{3b2793fb2a4e4a67bff196d4d262b0bb,
title = "Study of τ− → h−h−h+ντ decays",
abstract = "We present a new study of the τ−→h−h−h+ντ decays at Belle. Previous measurements of the branching fractions of these decays at Belle and BABAR showed significant difference, especially for the τ−→K−K+K−ντ mode. The dominant systematic uncertainty is related to the K/π identification (PID). There are two sources of the PID uncertainty: insufficient accuracy of the experimental misidentification efficiency correction for the low momentum pions from τ decays and impact of the additional γ-s on the identification. To improve the accuracy of the misidentification efficiency correction we utilize KS 0(→π+π−) sample. Additional γ-s in the vicinity of the track give notable impact on the PID, hence we apply special γ-veto. The systematic uncertainties are monitored by specially constructed estimator.",
keywords = "K/π identification, tau decays, K/pi identification",
author = "{The BELLE collaboration} and Alexander Bobrov",
year = "2017",
month = jun,
day = "1",
doi = "10.1016/j.nuclphysbps.2017.04.001",
language = "English",
volume = "287-288",
pages = "221--223",
journal = "Nuclear and Particle Physics Proceedings",
issn = "2405-6014",
publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - Study of τ− → h−h−h+ντ decays

AU - The BELLE collaboration

AU - Bobrov, Alexander

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We present a new study of the τ−→h−h−h+ντ decays at Belle. Previous measurements of the branching fractions of these decays at Belle and BABAR showed significant difference, especially for the τ−→K−K+K−ντ mode. The dominant systematic uncertainty is related to the K/π identification (PID). There are two sources of the PID uncertainty: insufficient accuracy of the experimental misidentification efficiency correction for the low momentum pions from τ decays and impact of the additional γ-s on the identification. To improve the accuracy of the misidentification efficiency correction we utilize KS 0(→π+π−) sample. Additional γ-s in the vicinity of the track give notable impact on the PID, hence we apply special γ-veto. The systematic uncertainties are monitored by specially constructed estimator.

AB - We present a new study of the τ−→h−h−h+ντ decays at Belle. Previous measurements of the branching fractions of these decays at Belle and BABAR showed significant difference, especially for the τ−→K−K+K−ντ mode. The dominant systematic uncertainty is related to the K/π identification (PID). There are two sources of the PID uncertainty: insufficient accuracy of the experimental misidentification efficiency correction for the low momentum pions from τ decays and impact of the additional γ-s on the identification. To improve the accuracy of the misidentification efficiency correction we utilize KS 0(→π+π−) sample. Additional γ-s in the vicinity of the track give notable impact on the PID, hence we apply special γ-veto. The systematic uncertainties are monitored by specially constructed estimator.

KW - K/π identification

KW - tau decays

KW - K/pi identification

UR - http://www.scopus.com/inward/record.url?scp=85020938610&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysbps.2017.04.001

DO - 10.1016/j.nuclphysbps.2017.04.001

M3 - Article

AN - SCOPUS:85020938610

VL - 287-288

SP - 221

EP - 223

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

SN - 2405-6014

ER -

ID: 10183945