Measurement of Michel parameters in leptonic τ decays at Belle

Belle Collaboration

doi:10.1016/j.nuclphysbps.2017.03.033

Measurement of Michel parameters in leptonic τ decays at Belle

Belle Collaboration

Лаборатория по изучению физики В- и D-мезонов МЦФЭЧиАФФ

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

2 Цитирования (Scopus)

Аннотация

We present a study of Michel parameters in leptonic τ decays using experimental information collected at the Belle detector. Michel parameters are extracted in the unbinned maximum likelihood fit of the (τ^∓→ℓ^∓νν τ^±→π^±π⁰ν) (ℓ=e, μ) events in the full nine-dimensional phase space. We exploit the spin-spin correlation of tau leptons to extract ξ_ρξ and ξ_ρξδ in addition to the ρ and η parameters. Sensitivity of the method and systematic effects will be discussed.

Язык оригинала	английский
Страницы (с-по)	7-10
Число страниц	4
Журнал	Nuclear and Particle Physics Proceedings
Том	287-288
DOI	https://doi.org/10.1016/j.nuclphysbps.2017.03.033
Состояние	Опубликовано - 1 июн 2017
Событие	14th International Workshop on Tau Lepton Physics (Tau) - Beijing Продолжительность: 19 сен 2016 → 23 сен 2016

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10.1016/j.nuclphysbps.2017.03.033

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@article{e05af1c14bcc4885ac429e9e621ba9b8,

title = "Measurement of Michel parameters in leptonic τ decays at Belle",

abstract = "We present a study of Michel parameters in leptonic τ decays using experimental information collected at the Belle detector. Michel parameters are extracted in the unbinned maximum likelihood fit of the (τ∓→ℓ∓νν τ±→π±π0ν) (ℓ=e, μ) events in the full nine-dimensional phase space. We exploit the spin-spin correlation of tau leptons to extract ξρξ and ξρξδ in addition to the ρ and η parameters. Sensitivity of the method and systematic effects will be discussed.",

keywords = "charged weak interaction, Michel parameter, tau lepton, RADIATIVE-CORRECTIONS, MUON DECAY, PAIR",

author = "{The BELLE collaboration} and Epifanov, {D. A.}",

year = "2017",

month = jun,

day = "1",

doi = "10.1016/j.nuclphysbps.2017.03.033",

language = "English",

volume = "287-288",

pages = "7--10",

journal = "Nuclear and Particle Physics Proceedings",

issn = "2405-6014",

publisher = "Elsevier Science B.V.",

note = "14th International Workshop on Tau Lepton Physics (Tau) ; Conference date: 19-09-2016 Through 23-09-2016",

}

TY - JOUR

T1 - Measurement of Michel parameters in leptonic τ decays at Belle

AU - The BELLE collaboration

AU - Epifanov, D. A.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We present a study of Michel parameters in leptonic τ decays using experimental information collected at the Belle detector. Michel parameters are extracted in the unbinned maximum likelihood fit of the (τ∓→ℓ∓νν τ±→π±π0ν) (ℓ=e, μ) events in the full nine-dimensional phase space. We exploit the spin-spin correlation of tau leptons to extract ξρξ and ξρξδ in addition to the ρ and η parameters. Sensitivity of the method and systematic effects will be discussed.

AB - We present a study of Michel parameters in leptonic τ decays using experimental information collected at the Belle detector. Michel parameters are extracted in the unbinned maximum likelihood fit of the (τ∓→ℓ∓νν τ±→π±π0ν) (ℓ=e, μ) events in the full nine-dimensional phase space. We exploit the spin-spin correlation of tau leptons to extract ξρξ and ξρξδ in addition to the ρ and η parameters. Sensitivity of the method and systematic effects will be discussed.

KW - charged weak interaction

KW - Michel parameter

KW - tau lepton

KW - RADIATIVE-CORRECTIONS

KW - MUON DECAY

KW - PAIR

UR - http://www.scopus.com/inward/record.url?scp=85020862293&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysbps.2017.03.033

DO - 10.1016/j.nuclphysbps.2017.03.033

M3 - Article

AN - SCOPUS:85020862293

VL - 287-288

SP - 7

EP - 10

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

SN - 2405-6014

T2 - 14th International Workshop on Tau Lepton Physics (Tau)

Y2 - 19 September 2016 through 23 September 2016

ER -

Measurement of Michel parameters in leptonic τ decays at Belle

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