Search for lepton flavor violating decays tau+- ---> l+- omega (l = e, mu)

Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A.; Garra Tico, J.; Grauges, E.

doi:10.1103/PhysRevLett.100.071802

Search for lepton flavor violating decays tau+- ---> l+- omega (l = e, mu)

BaBar

Collaboration

Nov, 2007

7 pages

Published in:

Phys.Rev.Lett. 100 (2008) 071802

e-Print:

0711.0980 [hep-ex]

DOI:

10.1103/PhysRevLett.100.071802

PDG:

{{\mathit \tau}^{-}}

\rightarrow

{{\mathit e}^{-}}{{\mathit \omega}}

Report number:

SLAC-PUB-12971,
BABAR-PUB-07-064

Experiments:

SLAC-PEP2-BABAR

View in:

pdf

reference search36 citations

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Abstract: (arXiv)

We have searched for lepton flavor violating decays of a

\tau

to a lighter-mass charged lepton and an

\omega

vector mesonusing 384.1

fb^{-}

of

e^+e^-

annihilation data collected with the BABAR detector at the Stanford Linear Accelerator Center PEP-II storage ring. No signal is found, and the upper limits on the branching ratios are determined to be

{\cal B}(\tau^{\pm} \to \mathrm{e}^{\pm} \omega) < 1.1\times10^{-7}

and

{\cal B}(\tau^{\pm} \to \mu^{\pm} \omega) < 1.0\times10^{-7}

at 90% confidence level.

Note:

7 pages, 2 encapsulated postscript figures, submitted to PRL

13.35.Dx
14.60.Fg
11.30.Hv
electron positron: colliding beams
electron positron: annihilation
tau: pair production
tau: semileptonic decay
omega(783): hadronic decay
flavor: violation
tau: branching ratio

References(26)

Figures(0)

Measurement of the solar electron neutrino flux with the Homestake chlorine detector

B.T. Cleveland
(
- Pennsylvania U.
)
,
Timothy Daily
(
- Pennsylvania U.
)
,
Raymond Davis, Jr.
(
- Pennsylvania U.
)
,
James R. Distel
(
- Pennsylvania U.
)
,
Kenneth Lande
(
- Pennsylvania U.
)

et al.

- Astrophys.J. 496 (1998) 505-526
•
DOI:
- 10.1086/305343

Evidence for oscillation of atmospheric neutrinos

Super-Kamiokande

Collaboration

•

Y. Fukuda
(
- Tokyo U., ICRR
)

et al.

- Phys.Rev.Lett. 81 (1998) 1562-1567
•
e-Print:
- hep-ex/9807003
•
DOI:
- 10.1103/PhysRevLett.81.1562

Direct evidence for neutrino flavor transformation from neutral current interactions in the Sudbury Neutrino Observatory

SNO

Collaboration

•

Q.R. Ahmad

et al.

- Phys.Rev.Lett. 89 (2002) 011301
•
e-Print:
- nucl-ex/0204008
•
DOI:
- 10.1103/PhysRevLett.89.011301

Indications of neutrino oscillation in a 250 km long baseline experiment

K2K

Collaboration

•

M.H. Ahn

et al.

- Phys.Rev.Lett. 90 (2003) 041801
•
e-Print:
- hep-ex/0212007
•
DOI:
- 10.1103/PhysRevLett.90.041801

Lepton flavor violation in the standard model extended by heavy singlet Dirac neutrinos

A. Ilakovac
(
- Zagreb U.
)

- Phys.Rev.D 62 (2000) 036010
•
e-Print:
- hep-ph/9910213
•
DOI:
- 10.1103/PhysRevD.62.036010

Lepton flavor violating leptonic/semileptonic decays of charged leptons in the minimal supersymmetric standard model

Takeshi Fukuyama
(
- Ritsumeikan U., Kusatsu
)
,
Amon Ilakovac
(
- Zagreb U.
)
,
Tatsuru Kikuchi
(
- Ritsumeikan U., Kusatsu
)

- Eur.Phys.J.C 56 (2008) 125-146
•
e-Print:
- hep-ph/0506295
•
DOI:
- 10.1140/epjc/s10052-008-0625-3

Semileptonic lepton number / flavor violating tau decays in Majorana neutrino models

A. Ilakovac
(
- Zagreb U.
)
,
Bernd A. Kniehl
(
- Munich, Max Planck Inst.
)
,
A. Pilaftsis
(
- Rutherford
)

- Phys.Rev.D 52 (1995) 3993-4005
•
e-Print:
- hep-ph/9503456
•
DOI:
- 10.1103/PhysRevD.52.3993

Tau and muon pair production cross-sections in electron-positron annihilations at s**(1/2) = 10.58-GeV

- Phys.Rev.D 77 (2008) 054012
•
e-Print:
- 0706.3235
•
DOI:
- 10.1103/PhysRevD.77.054012

The BaBar detector

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Nucl.Instrum.Meth.A 479 (2002) 1-116
•
e-Print:
- hep-ex/0105044
•
DOI:
- 10.1016/S0168-9002(01)02012-5

Measurement of the mass of the tau lepton

BES

Collaboration

•

J.Z. Bai

et al.

- Phys.Rev.D 53 (1996) 20-34
•
DOI:
- 10.1103/PhysRevD.53.20

Precision calculation for e+ e- ---> 2f: The KK MC project

- Nucl.Phys.B Proc.Suppl. 116 (2003) 73-77,
•
e-Print:
- hep-ph/0211132
•
DOI:
- 10.1016/S0920-5632(03)80147-0

Review of Particle Physics

et al.

- J.Phys.G 33 (2006) 1-1232
•
DOI:
- 10.1088/0954-3899/33/1/001

The tau decay library TAUOLA: Version 2.4

S. Jadach
(
- CERN and
- Cracow, INP
)
,
Z. Was
(
- CERN and
- Cracow, INP
)
,
R. Decker
(
- Karlsruhe U.
)
,
Johann H. Kuhn
(
- Karlsruhe U.
)

- Comput.Phys.Commun. 76 (1993) 361-380
•
DOI:
- 10.1016/0010-4655(93)90061-G

The EvtGen particle decay simulation package

D.J. Lange
(
- LLNL, Livermore
)

- Nucl.Instrum.Meth.A 462 (2001) 152-155
•
DOI:
- 10.1016/S0168-9002(01)00089-4

High-energy physics event generation with PYTHIA 5.7 and JETSET 7.4

Torbjorn Sjostrand
(
- CERN
)

- Comput.Phys.Commun. 82 (1994) 74-90,
- CERN Geneva - TH. 7111 (93/12,rec.Jan.94) 17 p. and e: CERN th-7111-93
•
DOI:
- 10.1016/0010-4655(94)90132-5