Search for lepton-flavour-violating decays of the Higgs and $Z$ bosons with the ATLAS detector - INSPIRE

DataBETA

Search for lepton-flavour-violating decays of the Higgs and $Z$ bosons with the ATLAS detector

ATLAS

Collaboration

Apr 26, 2016

46 pages

Published in:

Eur.Phys.J.C 77 (2017) 2, 70

Published: Feb 4, 2017

e-Print:

1604.07730 [hep-ex]

DOI:

10.1140/epjc/s10052-017-4624-0

PDG:

{{\mathit H}}

\rightarrow

{{\mathit e}}{{\mathit \tau}}

Report number:

CERN-EP-2016-055

Experiments:

CERN-LHC-ATLAS

View in:

reference search163 citations

Citations per year

Abstract: (Springer)

Direct searches for lepton flavour violation in decays of the Higgs and Z bosons with the ATLAS detector at the LHC are presented. The following three decays are considered:

H\rightarrow e\tau

,

H\rightarrow \mu \tau

, and

Z\rightarrow \mu \tau

. The searches are based on the data sample of proton–proton collisions collected by the ATLAS detector corresponding to an integrated luminosity of 20.3

\mathrm{fb}^{-1}

at a centre-of-mass energy of

\sqrt{s}=8

TeV. No significant excess is observed, and upper limits on the lepton-flavour-violating branching ratios are set at the 95

\%

confidence level: Br

(H\rightarrow e\tau )<1.04\%

, Br

(H\rightarrow \mu \tau )<1.43\%

, and Br

(Z\rightarrow \mu \tau )<1.69\times 10^{-5}

.

Note:

28 pages plus cover page plus author list (46 pages total), 6 figures, 9 tables, published in EPJC, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2015-09

p p: scattering
p p: colliding beams
Higgs particle: hadroproduction
Higgs particle: leptonic decay
Z0: hadroproduction
Z0: leptonic decay
lepton: flavor: violation
ATLAS
Higgs particle: branching ratio: upper limit
Z0: branching ratio: upper limit

References(69)

Figures(2)

[1]

A Mechanism for Nonconservation of Muon Number

J.D. Bjorken
(
- SLAC
)
,
Steven Weinberg
(
- Stanford U., Phys. Dept.
)

- Phys.Rev.Lett. 38 (1977) 622
•
DOI:
- 10.1103/PhysRevLett.38.622

[2]

Lepton flavor violating decays of Higgs bosons beyond the standard model

- Phys.Rev.D 62 (2000) 116005
•
e-Print:
- hep-ph/9910233
•
DOI:
- 10.1103/PhysRevD.62.116005

[3]

Non-decoupling SUSY in LFV Higgs decays: a window to new physics at the LHC

M. Arana-Catania
(
- CSIC, Madrid and
- Madrid, IFT
)
,
E. Arganda
(
- La Plata U. and
- Buenos Aires, CONICET
)
,
M.J. Herrero
(
- CSIC, Madrid and
- Madrid, IFT
)

- JHEP 09 (2013) 160,
- JHEP 10 (2015) 192 (erratum)
•
e-Print:
- 1304.3371
•
DOI:
- 10.1007/JHEP09(2013)160

[4]

Comprehensive analysis on lepton flavor violating Higgs boson to $\mu^\mp \tau^\pm$ decay in supersymmetry without $R$ parity

Abdesslam Arhrib
(
- Tanger U.
)
,
Yifan Cheng
(
- Taiwan, Natl. Central U.
)
,
Otto C.W. Kong
(
- Taiwan, Natl. Central U.
)

- Phys.Rev.D 87 (2013) 1, 015025
•
e-Print:
- 1210.8241
•
DOI:
- 10.1103/PhysRevD.87.015025

[5]

Composite Higgs-Mediated FCNC

Kaustubh Agashe
(
- Maryland U.
)
,
Roberto Contino
(
- Rome U. and
- INFN, Rome and
- CERN
)

- Phys.Rev.D 80 (2009) 075016
•
e-Print:
- 0906.1542
•
DOI:
- 10.1103/PhysRevD.80.075016

[6]

Higgs Mediated FCNC's in Warped Extra Dimensions

- Phys.Rev.D 80 (2009) 035016
•
e-Print:
- 0906.1990
•
DOI:
- 10.1103/PhysRevD.80.035016

[7]

Non-Abelian Discrete Symmetries in Particle Physics

Hajime Ishimori
(
- Niigata U., Grad. Sch. Sci. Tech.
)
,
Tatsuo Kobayashi
(
- Kyoto U.
)
,
Hiroshi Ohki
(
- Kyoto U.
)
,
Yusuke Shimizu
(
- Niigata U., Grad. Sch. Sci. Tech.
)
,
Hiroshi Okada
(
- British U. in Egypt
)

et al.

- Prog.Theor.Phys.Suppl. 183 (2010) 1-163
•
e-Print:
- 1003.3552
•
DOI:
- 10.1143/PTPS.183.1

[8]

Natural Neutrino Masses and Mixings from Warped Geometry

- JHEP 01 (2009) 077
•
e-Print:
- 0805.4652
•
DOI:
- 10.1088/1126-6708/2009/01/077

[9]

$\Delta$ F=2 Observables and Fine-Tuning in a Warped Extra Dimension with Custodial Protection

Monika Blanke
(
- Munich, Tech. U. and
- Munich, Max Planck Inst.
)
,
Andrzej J. Buras
(
- Munich, Tech. U.
)
,
Bjoern Duling
(
- Munich, Tech. U.
)
,
Stefania Gori
(
- Munich, Tech. U. and
- Munich, Max Planck Inst.
)
,
Andreas Weiler
(
- Cornell U., LEPP
)

- JHEP 03 (2009) 001
•
e-Print:
- 0809.1073
•
DOI:
- 10.1088/1126-6708/2009/03/001

[10]

Higgs-dependent Yukawa couplings

Gian F. Giudice
(
- CERN
)
,
Oleg Lebedev
(
- CERN
)

- Phys.Lett.B 665 (2008) 79-85
•
e-Print:
- 0804.1753
•
DOI:
- 10.1016/j.physletb.2008.05.062

[11]

A Minimal set of top-Higgs anomalous couplings

J.A. Aguilar-Saavedra
(
- Granada U., Theor. Phys. Astrophys. and
- CAFPE, Granada
)

- Nucl.Phys.B 821 (2009) 215-227
•
e-Print:
- 0904.2387
•
DOI:
- 10.1016/j.nuclphysb.2009.06.022

[12]

Electroweak and Flavour Structure of a Warped Extra Dimension with Custodial Protection

Michaela E. Albrecht
(
- Munich, Tech. U.
)
,
Monika Blanke
(
- Munich, Tech. U. and
- Munich, Max Planck Inst.
)
,
Andrzej J. Buras
(
- Munich, Tech. U. and
- TUM-IAS, Munich
)
,
Bjorn Duling
(
- Munich, Tech. U.
)
,
Katrin Gemmler
(
- Munich, Tech. U.
)

- JHEP 09 (2009) 064
•
e-Print:
- 0903.2415
•
DOI:
- 10.1088/1126-6708/2009/09/064

[13]

Higgs-induced lepton flavor violation

- Phys.Lett.B 707 (2012) 369-374
•
e-Print:
- 1111.1715
•
DOI:
- 10.1016/j.physletb.2011.12.059

[14]

Modified Higgs branching ratios versus CP and lepton flavor violation

David McKeen
(
- Victoria U.
)
,
Maxim Pospelov
(
- Victoria U. and
- Perimeter Inst. Theor. Phys.
)
,
Adam Ritz
(
- Victoria U.
)

- Phys.Rev.D 86 (2012) 113004
•
e-Print:
- 1208.4597
•
DOI:
- 10.1103/PhysRevD.86.113004

[15]

Addressing the LHC flavor anomalies with horizontal gauge symmetries

Andreas Crivellin
(
- CERN
)
,
Giancarlo D'Ambrosio
(
- CERN and
- INFN, Naples
)
,
Julian Heeck
(
- Brussels U.
)

- Phys.Rev.D 91 (2015) 7, 075006
•
e-Print:
- 1503.03477
•
DOI:
- 10.1103/PhysRevD.91.075006

[16]

Explaining $h\to\mu^\pm\tau^\mp$ , $B\to K^* \mu^+\mu^-$ and $B\to K \mu^+\mu^-/B\to K e^+e^-$ in a two-Higgs-doublet model with gauged $L_\mu-L_\tau$

Andreas Crivellin
(
- CERN
)
,
Giancarlo D'Ambrosio
(
- CERN and
- INFN, Naples
)
,
Julian Heeck
(
- Brussels U.
)

- Phys.Rev.Lett. 114 (2015) 151801
•
e-Print:
- 1501.00993
•
DOI:
- 10.1103/PhysRevLett.114.151801

[17]

Charged lepton flavor violation from massive neutrinos in Z decays

Jose I. Illana
(
- DESY and
- Granada U., Theor. Phys. Astrophys.
)
,
T. Riemann
(
- DESY
)

- Phys.Rev.D 63 (2001) 053004
•
e-Print:
- hep-ph/0010193
•
DOI:
- 10.1103/PhysRevD.63.053004

[18]

Lepton Flavor Violating Decays of $\Z^0$ and $\tau$

Tzee-Ke Kuo
(
- Purdue U.
)
,
N. Nakagawa
(
- Purdue U.
)

- Phys.Rev.D 32 (1985) 306
•
DOI:
- 10.1103/PhysRevD.32.306

[19]

$\Z^0 \to b \bar{s}$ and $\Z^0 \to \tau \bar{\mu}$ in {SUSY}: Are They Observable?

- Phys.Lett.B 214 (1988) 398-402
•
DOI:
- 10.1016/0370-2693(88)91384-6

[20]

Review of Particle Physics

et al.

- Chin.Phys.C 38 (2014) 090001
•
DOI:
- 10.1088/1674-1137/38/9/090001

[21]

Search for Lepton-Flavour-Violating Decays of the Higgs Boson

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 749 (2015) 337-362
•
e-Print:
- 1502.07400
•
DOI:
- 10.1016/j.physletb.2015.07.053

[22]

Search for lepton-flavour-violating H → μτ decays of the Higgs boson with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- JHEP 11 (2015) 211
•
e-Print:
- 1508.03372
•
DOI:
- 10.1007/JHEP11(2015)211

[23]

New constraint on the existence of the $\mu^+ \to e^+\gamma$ decay

MEG

Collaboration

•

J. Adam
(
- PSI, Villigen and
- Zurich, ETH
)

et al.

- Phys.Rev.Lett. 110 (2013) 201801
•
e-Print:
- 1303.0754
•
DOI:
- 10.1103/PhysRevLett.110.201801

[24]

Flavor Violating Higgs Decays

Roni Harnik
(
- Fermilab
)
,
Joachim Kopp
(
- Heidelberg, Max Planck Inst. and
- Fermilab
)
,
Jure Zupan
(
- Cincinnati U.
)

- JHEP 03 (2013) 026
•
e-Print:
- 1209.1397
•
DOI:
- 10.1007/JHEP03(2013)026

[25]

Flavour-Changing Decays of a 125 GeV Higgs-like Particle

Gianluca Blankenburg
(
- Rome III U. and
- CERN
)
,
John Ellis
(
- King's Coll. London and
- CERN
)
,
Gino Isidori
(
- Frascati and
- CERN
)

- Phys.Lett.B 712 (2012) 386-390
•
e-Print:
- 1202.5704
•
DOI:
- 10.1016/j.physletb.2012.05.007

1-25 of 69
1
2
3
25 / page