Lepton Flavour Violation and Baryon Number Non-conservation in τ → Λ + h

G. D. Lafferty

doi:10.1016/j.nuclphysbps.2007.02.111

Lepton Flavour Violation and Baryon Number Non-conservation in τ → Λ + h

G. D. Lafferty

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

Abstract

We have searched for the violation of baryon number B and lepton number L in the (B-L)-conserving modes τ- → over(Λ, -) π- and τ- → over(Λ, -) K- as well as the (B-L)-violating modes τ- → Λ π- and τ- → Λ K- using 237 fb-1 of data collected with the BaBar detector at the PEP-II asymmetric-energy e+ e- storage rings. We do not observe any signal and we determine preliminary upper limits on the branching fractions B (τ- → over(Λ, -) π-) <5.9 × 10-8, B (τ- → Λ π-) <5.8 × 10-8, B (τ- → over(Λ, -) K-) <7.2 × 10-8, and B (τ- → Λ K-) <15 × 10-8 at 90% confidence level. © 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	186-191
Number of pages	5
Journal	Nuclear Physics B - Proceedings Supplements
Volume	169
DOIs	https://doi.org/10.1016/j.nuclphysbps.2007.02.111
Publication status	Published - Jul 2007

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title = "Lepton Flavour Violation and Baryon Number Non-conservation in τ → Λ + h",

abstract = "We have searched for the violation of baryon number B and lepton number L in the (B-L)-conserving modes τ- → over(Λ, -) π- and τ- → over(Λ, -) K- as well as the (B-L)-violating modes τ- → Λ π- and τ- → Λ K- using 237 fb-1 of data collected with the BaBar detector at the PEP-II asymmetric-energy e+ e- storage rings. We do not observe any signal and we determine preliminary upper limits on the branching fractions B (τ- → over(Λ, -) π-) <5.9 × 10-8, B (τ- → Λ π-) <5.8 × 10-8, B (τ- → over(Λ, -) K-) <7.2 × 10-8, and B (τ- → Λ K-) <15 × 10-8 at 90% confidence level. {\textcopyright} 2007 Elsevier B.V. All rights reserved.",

author = "Lafferty, {G. D.}",

year = "2007",

month = jul,

doi = "10.1016/j.nuclphysbps.2007.02.111",

language = "English",

volume = "169",

pages = "186--191",

journal = "Nuclear Physics B - Proceedings Supplements",

issn = "1873-3832",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Lepton Flavour Violation and Baryon Number Non-conservation in τ → Λ + h

AU - Lafferty, G. D.

PY - 2007/7

Y1 - 2007/7

N2 - We have searched for the violation of baryon number B and lepton number L in the (B-L)-conserving modes τ- → over(Λ, -) π- and τ- → over(Λ, -) K- as well as the (B-L)-violating modes τ- → Λ π- and τ- → Λ K- using 237 fb-1 of data collected with the BaBar detector at the PEP-II asymmetric-energy e+ e- storage rings. We do not observe any signal and we determine preliminary upper limits on the branching fractions B (τ- → over(Λ, -) π-) <5.9 × 10-8, B (τ- → Λ π-) <5.8 × 10-8, B (τ- → over(Λ, -) K-) <7.2 × 10-8, and B (τ- → Λ K-) <15 × 10-8 at 90% confidence level. © 2007 Elsevier B.V. All rights reserved.

AB - We have searched for the violation of baryon number B and lepton number L in the (B-L)-conserving modes τ- → over(Λ, -) π- and τ- → over(Λ, -) K- as well as the (B-L)-violating modes τ- → Λ π- and τ- → Λ K- using 237 fb-1 of data collected with the BaBar detector at the PEP-II asymmetric-energy e+ e- storage rings. We do not observe any signal and we determine preliminary upper limits on the branching fractions B (τ- → over(Λ, -) π-) <5.9 × 10-8, B (τ- → Λ π-) <5.8 × 10-8, B (τ- → over(Λ, -) K-) <7.2 × 10-8, and B (τ- → Λ K-) <15 × 10-8 at 90% confidence level. © 2007 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.nuclphysbps.2007.02.111

DO - 10.1016/j.nuclphysbps.2007.02.111

M3 - Article

SN - 1873-3832

VL - 169

SP - 186

EP - 191

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

ER -

Lepton Flavour Violation and Baryon Number Non-conservation in τ → Λ + h

Abstract

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