Searches for lepton-flavour-violating decays of the Higgs boson in $\sqrt{s}=13$ TeV pp collisions with the ATLAS detector - INSPIRE

DataBETA

Searches for lepton-flavour-violating decays of the Higgs boson in $\sqrt{s}=13$ TeV pp collisions with the ATLAS detector

ATLAS

Collaboration

Jul 13, 2019

39 pages

Published in:

Phys.Lett.B 800 (2020) 135069

Published: Jan 10, 2020

e-Print:

1907.06131 [hep-ex]

DOI:

10.1016/j.physletb.2019.135069 (publication)

PDG:

{{\mathit H}}

\rightarrow

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

Report number:

CERN-EP-2019-126

Experiments:

CERN-LHC-ATLAS

View in:

reference search96 citations

Citations per year

Abstract: (Elsevier)

This Letter presents direct searches for lepton flavour violation in Higgs boson decays, H→eτ and H→μτ , performed with the ATLAS detector at the LHC. The searches are based on a data sample of proton–proton collisions at a centre-of-mass energy s=13 TeV, corresponding to an integrated luminosity of 36.1 fb−1 . No significant excess is observed above the expected background from Standard Model processes. The observed (median expected) 95% confidence-level upper limits on the lepton-flavour-violating branching ratios are 0.47% ( 0.34−0.10+0.13% ) and 0.28% ( 0.37−0.10+0.14% ) for H→eτ and H→μτ , respectively.

Note:

39 pages in total, author list starting page 23, 5 figures, 6 tables. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2017-08

p p: colliding beams
Higgs particle: rare decay
p p: scattering
Higgs particle: leptonic decay
lepton: flavor: violation
Higgs particle: branching ratio
branching ratio: upper limit
ATLAS
CERN LHC Coll
background

References(87)

Figures(18)

[1]

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

ATLAS

Collaboration

•

Georges Aad
(
- Freiburg U.
)

et al.

- Phys.Lett.B 716 (2012) 1-29
•
e-Print:
- 1207.7214
•
DOI:
- 10.1016/j.physletb.2012.08.020

[2]

Observation of a New Boson at a Mass of 125 GeV with the CMS Experiment at the LHC

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 716 (2012) 30-61
•
e-Print:
- 1207.7235
•
DOI:
- 10.1016/j.physletb.2012.08.021

[3]

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

[4]

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

[5]

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

[6]

Higgs-induced lepton flavor violation

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

[7]

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

[8]

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

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 77 (2017) 2, 70
•
e-Print:
- 1604.07730
•
DOI:
- 10.1140/epjc/s10052-017-4624-0

[9]

Search for lepton flavour violating decays of the Higgs boson to $\mu\tau$ and e $\tau$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV

CMS

Collaboration

•

Albert M Sirunyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 06 (2018) 001
•
e-Print:
- 1712.07173
•
DOI:
- 10.1007/JHEP06(2018)001

[10]

Cross-section measurements of the Higgs boson decaying into a pair of $\tau$ -leptons in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

ATLAS

Collaboration

•

Morad Aaboud
(
- Oujda U.
)

et al.

- Phys.Rev.D 99 (2019) 072001
•
e-Print:
- 1811.08856
•
DOI:
- 10.1103/PhysRevD.99.072001

[11]

The ATLAS Experiment at the CERN Large Hadron Collider

ATLAS

Collaboration

•

G. Aad
(
- Marseille, CPPM
)

et al.

- JINST 3 (2008) S08003
•
DOI:
- 10.1088/1748-0221/3/08/S08003

[12]

ATLAS / Design Report / 2010, url: / ATLAS Insertable B-Layer Technical / Design Report Addendum / -ADD-1,, URL: / 1451888

ATLAS Collaboration

Collaboration

•

Technical

et al.

[13]

Production and Integration of the ATLAS Insertable B-Layer

ATLAS IBL

Collaboration

•

B. Abbott
(
- Oklahoma U.
)

et al.

- JINST 13 (2018) 05, T05008
•
e-Print:
- 1803.00844
•
DOI:
- 10.1088/1748-0221/13/05/T05008

[14]

The ATLAS Simulation Infrastructure

ATLAS

Collaboration

•

G. Aad
(
- Freiburg U.
)

et al.

- Eur.Phys.J.C 70 (2010) 823-874
•
e-Print:
- 1005.4568
•
DOI:
- 10.1140/epjc/s10052-010-1429-9

[15]

GEANT4 - A Simulation Toolkit

GEANT4

Collaboration

•

S. Agostinelli
(
- Genoa U.
)

et al.

- Nucl.Instrum.Meth.A 506 (2003) 250-303
•
DOI:
- 10.1016/S0168-9002(03)01368-8

[16]

Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments

ATLAS and
CMS

Collaborations

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Rev.Lett. 114 (2015) 191803
•
e-Print:
- 1503.07589
•
DOI:
- 10.1103/PhysRevLett.114.191803

[17]

Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector

D. de Florian
(
- ICAS, UNSAM, Buenos Aires
)
,
C. Grojean
(
- Barcelona, IFAE and
- Barcelona, IEEC and
- ICREA, Barcelona and
- Humboldt U., Berlin and
- DESY
)
,
F. Maltoni
(
- Louvain U., CP3
)
,
C. Mariotti
(
- INFN, Turin
)
,
A. Nikitenko
(
- Imperial Coll., London
)

et al.

e-Print:
- 1610.07922
•
DOI:
- 10.23731/CYRM-2017-002

[18]

An introduction to PYTHIA 8.2

et al.

- Comput.Phys.Commun. 191 (2015) 159-177
•
e-Print:
- 1410.3012
•
DOI:
- 10.1016/j.cpc.2015.01.024

[19]

A New method for combining NLO QCD with shower Monte Carlo algorithms

Paolo Nason
(
- INFN, Milan
)

- JHEP 11 (2004) 040
•
e-Print:
- hep-ph/0409146
•
DOI:
- 10.1088/1126-6708/2004/11/040

[20]

Matching NLO QCD computations with Parton Shower simulations: the POWHEG method

Stefano Frixione
(
- INFN, Genoa
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Carlo Oleari
(
- INFN, Milan Bicocca and
- Milan Bicocca U.
)

- JHEP 11 (2007) 070
•
e-Print:
- 0709.2092
•
DOI:
- 10.1088/1126-6708/2007/11/070

[21]

A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX

Simone Alioli
(
- DESY, Zeuthen and
- INFN, Milan Bicocca
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Carlo Oleari
(
- Milan Bicocca U. and
- INFN, Milan Bicocca
)
,
Emanuele Re
(
- Durham U., IPPP and
- INFN, Milan Bicocca
)

- JHEP 06 (2010) 043
•
e-Print:
- 1002.2581
•
DOI:
- 10.1007/JHEP06(2010)043

[22]

Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM

E. Bagnaschi
(
- Milan U. and
- INFN, Milan and
- Paris, LPTHE
)
,
G. Degrassi
(
- INFN, Rome3 and
- Rome III U.
)
,
P. Slavich
(
- Paris, LPTHE
)
,
A. Vicini
(
- Milan U. and
- INFN, Milan
)

- JHEP 02 (2012) 088
•
e-Print:
- 1111.2854
•
DOI:
- 10.1007/JHEP02(2012)088

[23]

Finite quark-mass effects in the NNLOPS POWHEG+MiNLO Higgs generator

Keith Hamilton
(
- University Coll. London
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Giulia Zanderighi
(
- CERN
)

- JHEP 05 (2015) 140
•
e-Print:
- 1501.04637
•
DOI:
- 10.1007/JHEP05(2015)140

[24]

NNLOPS simulation of Higgs boson production

Keith Hamilton
(
- University Coll. London and
- CERN
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Emanuele Re
(
- Oxford U., Theor. Phys.
)
,
Giulia Zanderighi
(
- Oxford U., Theor. Phys.
)

- JHEP 10 (2013) 222
•
e-Print:
- 1309.0017
•
DOI:
- 10.1007/JHEP10(2013)222

[25]

PDF4LHC recommendations for LHC Run II

Jon Butterworth
(
- University Coll. London
)
,
Stefano Carrazza
(
- INFN, Milan and
- Milan U.
)
,
Amanda Cooper-Sarkar
(
- Oxford U.
)
,
Albert De Roeck
(
- CERN and
- U. Antwerp (main)
)
,
Joel Feltesse
(
- CEA, DSM, Saclay
)

et al.

- J.Phys.G 43 (2016) 023001
•
e-Print:
- 1510.03865
•
DOI:
- 10.1088/0954-3899/43/2/023001

1-25 of 87
1
2
3
4
25 / page