Search for $\mathrm{t\overline{t}H}$ production in the $\mathrm{H}\rightarrow \mathrm{b\overline{b}}$ decay channel with $\sqrt{s}=13~\mathrm{TeV}$ pp collisions at the CMS experiment - INSPIRE

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Search for $\mathrm{t\overline{t}H}$ production in the $\mathrm{H}\rightarrow \mathrm{b\overline{b}}$ decay channel with $\sqrt{s}=13~\mathrm{TeV}$ pp collisions at the CMS experiment

CMS

Collaboration

2016

31 pages

Report number:

CMS-PAS-HIG-16-004

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

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Abstract:

First results of the search for the associated production of a Higgs boson with a top quark-antiquark pair (

\mathrm{t\overline{t}H}

) in proton-proton collisions at a center-of-mass energy of

\sqrt{s} = 13~\mathrm{TeV}

are presented. The data correspond to an integrated luminosity of

2.7~\mathrm{fb}^{-1}

recorded with the CMS experiment in 2015. Candidate

\mathrm{t\overline{t}H}

events are selected with criteria enhancing the lepton+jets or dileptonic decay channels of the

\mathrm{t\overline{t}}

system and the decay of the Higgs boson into a bottom quark-antiquark pair (

\mathrm{H}\rightarrow \mathrm{b\overline{b}}

). In order to increase the sensitivity of the search, selected events are split into several categories with different expected signal and background rates. In each category signal and background events are separated using a multivariate approach that combines a physics-motivated method (matrix element method, MEM) with methods from machine learning (boosted decision trees, BDTs). The result is presented in terms of the

\mathrm{t\overline{t}H}

signal strength modifier

\mu

, the ratio of the observed

\mathrm{t\overline{t}H}

production cross section relative to the value expected for a 125 GeV standard model Higgs boson. A combined fit of multivariate discriminant templates in all categories to data results in an observed (expected) upper limit of

\mu < 2.6~(3.6)

at the

95\%

confidence level.

Note:

Preliminary results

Data
p p: colliding beams
p p: scattering
top: pair production
Higgs particle: hadronic decay
jet: bottom
bottom: particle identification
Higgs particle: associated production
final state: ((n)jet lepton)
final state: ((n)jet dilepton)

References(76)

Figures(38)

[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]

Evidence for the direct decay of the 125 GeV Higgs boson to fermions

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Nature Phys. 10 (2014) 557-560
•
e-Print:
- 1401.6527
•
DOI:
- 10.1038/nphys3005

[4]

Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- JHEP 04 (2015) 117
•
e-Print:
- 1501.04943
•
DOI:
- 10.1007/JHEP04(2015)117

[5]

Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC

ATLAS

Collaboration

•

Georges Aad
(
- Freiburg U.
)

et al.

- Phys.Lett.B 726 (2013) 88-119,
- Phys.Lett.B 734 (2014) 406-406 (erratum)
•
e-Print:
- 1307.1427
•
DOI:
- 10.1016/j.physletb.2014.05.011

[6]

Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 $\,\text {TeV}$

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Eur.Phys.J.C 75 (2015) 5, 212
•
e-Print:
- 1412.8662
•
DOI:
- 10.1140/epjc/s10052-015-3351-7

[7]

Evidence for the spin-0 nature of the Higgs boson using ATLAS data

ATLAS

Collaboration

•

Georges Aad
(
- Freiburg U.
)

et al.

- Phys.Lett.B 726 (2013) 120-144
•
e-Print:
- 1307.1432
•
DOI:
- 10.1016/j.physletb.2013.08.026

[8]

Constraints on the spin-parity and anomalous HVV couplings of the Higgs boson in proton collisions at 7 and 8 TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.D 92 (2015) 1, 012004
•
e-Print:
- 1411.3441
•
DOI:
- 10.1103/PhysRevD.92.012004

[9]

Handbook of LHC Higgs Cross Sections: 3. Higgs Properties

S Heinemeyer
(
- Cantabria Inst. of Phys.
)
(ed.)
,
C Mariotti
(
- INFN, Turin
)
(ed.)
,
G Passarino
(
- Turin U. and
- INFN, Turin
)
(ed.)
,
R Tanaka
(
- Orsay, LAL
)
(ed.)
,
J R Andersen
(
- Durham U., IPPP
)

et al.

e-Print:
- 1307.1347
•
DOI:
- 10.5170/CERN-2013-004

[10]

Large Hadron Collider tests of a little Higgs model

Gustavo Burdman
(
- LBL, Berkeley and
- UC, Berkeley
)
,
Maxim Perelstein
(
- LBL, Berkeley and
- UC, Berkeley
)
,
Aaron Pierce
(
- SLAC
)

- Phys.Rev.Lett. 90 (2003) 241802,
- Phys.Rev.Lett. 92 (2004) 049903 (erratum)
•
e-Print:
- hep-ph/0212228
•
DOI:
- 10.1103/PhysRevLett.90.241802

[11]

Phenomenology of the little Higgs model

Tao Han
(
- Wisconsin U., Madison
)
,
Heather E. Logan
(
- Wisconsin U., Madison
)
,
Bob McElrath
(
- Wisconsin U., Madison
)
,
Lian-Tao Wang
(
- Wisconsin U., Madison
)

- Phys.Rev.D 67 (2003) 095004
•
e-Print:
- hep-ph/0301040
•
DOI:
- 10.1103/PhysRevD.67.095004

[12]

Top quarks and electroweak symmetry breaking in little Higgs models

Maxim Perelstein
(
- Cornell U., LEPP
)
,
Michael E. Peskin
(
- SLAC
)
,
Aaron Pierce
(
- SLAC
)

- Phys.Rev.D 69 (2004) 075002
•
e-Print:
- hep-ph/0310039
•
DOI:
- 10.1103/PhysRevD.69.075002

[13]

Top partners in little Higgs theories with T-parity

Hsin-Chia Cheng
(
- Harvard U., Phys. Dept. and
- UC, Davis
)
,
Ian Low
(
- Princeton, Inst. Advanced Study
)
,
Lian-Tao Wang
(
- Harvard U., Phys. Dept.
)

- Phys.Rev.D 74 (2006) 055001
•
e-Print:
- hep-ph/0510225
•
DOI:
- 10.1103/PhysRevD.74.055001

[14]

Near extremal correlators and vanishing supergravity couplings in AdS / CFT

Eric D'Hoker
(
- UCLA
)
,
Johanna Erdmenger
(
- MIT, LNS
)
,
Daniel Z. Freedman
(
- MIT, LNS and
- MIT
)
,
Manuel Perez-Victoria
(
- MIT, LNS
)

- Nucl.Phys.B 589 (2000) 3-37
•
e-Print:
- hep-th/0003218
•
DOI:
- 10.1016/S0550-3213(00)00534-4

[14]

Electroweak symmetry breaking and extra dimensions

Hsin-Chia Cheng
(
- Chicago U., EFI
)
,
Bogdan A. Dobrescu
(
- Fermilab and
- Santa Barbara, KITP
)
,
Christopher T. Hill
(
- Chicago U., EFI and
- Fermilab
)

- Nucl.Phys.B 589 (2000) 249-268
•
e-Print:
- hep-ph/9912343
•
DOI:
- 10.1016/S0550-3213(00)00401-6

[15]

Light Kaluza Klein States in Randall-Sundrum Models with Custodial SU(2)

Marcela Carena
(
- Fermilab
)
,
Eduardo Ponton
(
- Columbia U.
)
,
Jose Santiago
(
- Fermilab
)
,
Carlos E.M. Wagner
(
- Argonne and
- Chicago U., EFI and
- Chicago U., KICP
)

- Nucl.Phys.B 759 (2006) 202-227
•
e-Print:
- hep-ph/0607106
•
DOI:
- 10.1016/j.nuclphysb.2006.10.012

[16]

Light custodians in natural composite Higgs models

Roberto Contino
(
- Rome U. and
- INFN, Rome
)
,
Leandro Da Rold
(
- Sao Paulo U.
)
,
Alex Pomarol
(
- Barcelona, IFAE
)

- Phys.Rev.D 75 (2007) 055014
•
e-Print:
- hep-ph/0612048
•
DOI:
- 10.1103/PhysRevD.75.055014

[17]

Electroweak Symmetry Breaking from a Holographic Fourth Generation

Gustavo Burdman
(
- Sao Paulo U.
)
,
Leandro Da Rold
(
- Sao Paulo U.
)

- JHEP 12 (2007) 086
•
e-Print:
- 0710.0623
•
DOI:
- 10.1088/1126-6708/2007/12/086

[18]

Topcolor: Top quark condensation in a gauge extension of the standard model

Christopher T. Hill
(
- Fermilab
)

- Phys.Lett.B 266 (1991) 419-424
•
DOI:
- 10.1016/0370-2693(91)91061-Y

[19]

New Higgs Production Mechanism in Composite Higgs Models

Adrian Carmona
(
- Granada U., Theor. Phys. Astrophys. and
- CAFPE, Granada
)
,
Mikael Chala
(
- Granada U., Theor. Phys. Astrophys. and
- CAFPE, Granada
)
,
Jose Santiago
(
- Granada U., Theor. Phys. Astrophys. and
- CAFPE, Granada
)

- JHEP 07 (2012) 049
•
e-Print:
- 1205.2378
•
DOI:
- 10.1007/JHEP07(2012)049

[20]

Search for the associated production of the Higgs boson with a top-quark pair

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 09 (2014) 087,
- JHEP 10 (2014) 106 (erratum)
•
e-Print:
- 1408.1682
•
DOI:
- 10.1007/JHEP09(2014)087

[21]

Search for the associated production of the Higgs boson with a top quark pair in multilepton final states with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Lett.B 749 (2015) 519-541
•
e-Print:
- 1506.05988
•
DOI:
- 10.1016/j.physletb.2015.07.079

[22]

Search for a Standard Model Higgs Boson Produced in Association with a Top-Quark Pair and Decaying to Bottom Quarks Using a Matrix Element Method

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Eur.Phys.J.C 75 (2015) 6, 251
•
e-Print:
- 1502.02485
•
DOI:
- 10.1140/epjc/s10052-015-3454-1

[23]

Search for the Standard Model Higgs boson produced in association with top quarks and decaying into $b\bar{b}$ in pp collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Eur.Phys.J.C 75 (2015) 7, 349
•
e-Print:
- 1503.05066
•
DOI:
- 10.1140/epjc/s10052-015-3543-1

[24]

Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables

et al.

e-Print:
- 1101.0593
•
DOI:
- 10.5170/CERN-2011-002

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