Direct top-quark decay width measurement in the $t\bar{t}$ lepton+jets channel at $\sqrt{s}$=8 TeV with the ATLAS experiment - INSPIRE

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Direct top-quark decay width measurement in the $t\bar{t}$ lepton+jets channel at $\sqrt{s}$ =8 TeV with the ATLAS experiment

ATLAS

Collaboration

Sep 13, 2017

44 pages

Published in:

Eur.Phys.J.C 78 (2018) 2, 129

Published: Feb 15, 2018

e-Print:

1709.04207 [hep-ex]

DOI:

10.1140/epjc/s10052-018-5595-5

PDG:

{\mathit {\mathit t}}

-quark DECAY WIDTH

Report number:

CERN-EP-2017-187

Experiments:

CERN-LHC-ATLAS

View in:

reference search54 citations

Citations per year

Abstract: (Springer)

This paper presents a direct measurement of the decay width of the top quark using

t\bar{t}

events in the lepton+jets final state. The data sample was collected by the ATLAS detector at the LHC in proton–proton collisions at a centre-of-mass energy of 8 TeV and corresponds to an integrated luminosity of 20.2 fb

^{-1}

. The decay width of the top quark is measured using a template fit to distributions of kinematic observables associated with the hadronically and semileptonically decaying top quarks. The result,

\Gamma _t = 1.76 \pm 0.33~(\text {stat.})~ ^{+0.79-0.68}~(\text {syst.})~\text {GeV}

for a top-quark mass of 172.5 GeV, is consistent with the prediction of the Standard Model.

Note:

44 pages in total, author list starting page 28, 6 figures, 3 tables, published in EPJC, All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2017-02/

p p: scattering
p p: colliding beams
decay: width
top: pair production
top: semileptonic decay
top: hadronic decay
top: width: measured
top: mass
final state: ((n)jet lepton)
ATLAS

References(81)

Figures(4)

[1]

Observation of top quark production in $\bar{p}p$ collisions

CDF

Collaboration

•

F. Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 74 (1995) 2626-2631
•
e-Print:
- hep-ex/9503002
•
DOI:
- 10.1103/PhysRevLett.74.2626

[2]

Observation of the top quark

D0

Collaboration

•

S. Abachi
(
- Fermilab
)

et al.

- Phys.Rev.Lett. 74 (1995) 2632-2637
•
e-Print:
- hep-ex/9503003
•
DOI:
- 10.1103/PhysRevLett.74.2632

[3]

Measurement of the top quark mass in the $t\bar{t}\to$ dilepton channel from $\sqrt{s}=8$ TeV ATLAS data

ATLAS

Collaboration

•

Morad Aaboud
(
- Oujda U.
)

et al.

- Phys.Lett.B 761 (2016) 350-371
•
e-Print:
- 1606.02179
•
DOI:
- 10.1016/j.physletb.2016.08.042

[4]

Measurement of the top quark mass using proton-proton data at ${\sqrt{(s)}}$ = 7 and 8 TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.D 93 (2016) 7, 072004
•
e-Print:
- 1509.04044
•
DOI:
- 10.1103/PhysRevD.93.072004

[5]

Combination of CDF and D0 Results on the Mass of the Top Quark using up to 9.7 fb $^{-1}$ at the Tevatron

CDF and
D0

Collaborations

e-Print:
- 1407.2682

[6]

Second order QCD corrections to Gamma(t ---> W b)

K.G. Chetyrkin
(
- Karlsruhe U., TTP
)
,
R. Harlander
(
- Karlsruhe U., TTP
)
,
T. Seidensticker
(
- Karlsruhe U., TTP
)
,
M. Steinhauser
(
- Bern U.
)

- Phys.Rev.D 60 (1999) 114015
•
e-Print:
- hep-ph/9906273
•
DOI:
- 10.1103/PhysRevD.60.114015

[7]

Two loop QCD corrections to top quark width

Andrzej Czarnecki
(
- Brookhaven
)
,
Kirill Melnikov
(
- Karlsruhe U., TTP
)

- Nucl.Phys.B 544 (1999) 520-531
•
e-Print:
- hep-ph/9806244
•
DOI:
- 10.1016/S0550-3213(98)00844-X

[8]

Review of Particle Physics

C. Patrignani
(
- Bologna U. and
- INFN, Bologna
)
,
K. Agashe
(
- Maryland U.
)
,
G. Aielli
(
- U. Rome 2, Tor Vergata (main)
)
,
C. Amsler
(
- U. Bern, AEC and
- Stefan Meyer Inst. Subatomare Phys.
)
,
M. Antonelli
(
- Frascati
)

et al.

- Chin.Phys.C 40 (2016) 10, 100001
•
DOI:
- 10.1088/1674-1137/40/10/100001

[9]

Top Quark Decay at Next-to-Next-to Leading Order in QCD

Jun Gao
(
- Southern Methodist U.
)
,
Chong Sheng Li
(
- Peking U. and
- Peking U., CAPT
)
,
Hua Xing Zhu
(
- SLAC
)

- Phys.Rev.Lett. 110 (2013) 4, 042001
•
e-Print:
- 1210.2808
•
DOI:
- 10.1103/PhysRevLett.110.042001

[10]

Top quark physics at the LHC

Werner Bernreuther
(
- Aachen, Tech. Hochsch.
)

- J.Phys.G 35 (2008) 083001
•
e-Print:
- 0805.1333
•
DOI:
- 10.1088/0954-3899/35/8/083001

[11]

Looking for the charged Higgs boson

D.P. Roy
(
- Tata Inst.
)

- Mod.Phys.Lett.A 19 (2004) 1813-1828
•
e-Print:
- hep-ph/0406102
•
DOI:
- 10.1142/S0217732304015105

[12]

New physics effects in the flavor-changing neutral couplings of the top quark

- Int.J.Mod.Phys.A 21 (2006) 3473-3494
•
e-Print:
- hep-ph/0605003
•
DOI:
- 10.1142/S0217751X06033039

[13]

Top quark decay via the anomalous coupling $\bar{t} c \gamma$ at hadron colliders

Tao Han
(
- UC, Davis
)
,
K. Whisnant
(
- Iowa State U.
)
,
B.L. Young
(
- Iowa State U. and
- Taiwan, Inst. Phys.
)
,
X. Zhang
(
- Iowa State U.
)

- Phys.Rev.D 55 (1997) 7241-7248
•
e-Print:
- hep-ph/9603247
•
DOI:
- 10.1103/PhysRevD.55.7241

[14]

Indirect heavy SUSY signals in Higgs and top decays

Maria J. Herrero
(
- Madrid, Autonoma U.
)

e-Print:
- hep-ph/0109291

[15]

Is V( $_{tb}$ ) $\simeq$ 1?

et al.

- Eur.Phys.J.C 49 (2007) 791-801
•
e-Print:
- hep-ph/0607115
•
DOI:
- 10.1140/epjc/s10052-006-0137-y

[16]

An Improved determination of the width of the top quark

D0

Collaboration

•

Victor Mukhamedovich Abazov
(
- Dubna, JINR
)

et al.

- Phys.Rev.D 85 (2012) 091104
•
e-Print:
- 1201.4156
•
DOI:
- 10.1103/PhysRevD.85.091104

[17]

Measurement of the ratio $\mathcal B(t \to Wb)/\mathcal B(t \to Wq)$ in pp collisions at $\sqrt{s}$ = 8 TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Lett.B 736 (2014) 33-57
•
e-Print:
- 1404.2292
•
DOI:
- 10.1016/j.physletb.2014.06.076

[18]

Direct Measurement of the Total Decay Width of the Top Quark

CDF

Collaboration

•

Timo Antero Aaltonen
(
- Helsinki Inst. of Phys. and
- Helsinki U.
)

et al.

- Phys.Rev.Lett. 111 (2013) 20, 202001
•
e-Print:
- 1308.4050
•
DOI:
- 10.1103/PhysRevLett.111.202001

[19]

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

[20]

Luminosity determination in pp collisions at $\sqrt{s}$ = 8 TeV using the ATLAS detector at the LHC

ATLAS

Collaboration

•

Morad Aaboud
(
- Oujda U.
)

et al.

- Eur.Phys.J.C 76 (2016) 12, 653
•
e-Print:
- 1608.03953
•
DOI:
- 10.1140/epjc/s10052-016-4466-1

[21]

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

[22]

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

[23]

Thermodynamic Properties of Holographic Multiquark and the Multiquark Star

P. Burikham
(
- Chulalongkorn U. and
- ThEP, Bangkok
)
,
E. Hirunsirisawat
(
- Chulalongkorn U.
)
,
S. Pinkanjanarod
(
- Chulalongkorn U. and
- Bangkok, Kasetsart U.
)

- JHEP 06 (2010) 040
•
e-Print:
- 1003.5470
•
DOI:
- 10.1007/JHEP06(2010)040

[23]

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

[24]

A Positive-weight next-to-leading-order Monte Carlo for heavy flavour hadroproduction

Stefano Frixione
(
- INFN, Genoa
)
,
Paolo Nason
(
- INFN, Milan Bicocca
)
,
Giovanni Ridolfi
(
- Genoa U. and
- INFN, Genoa
)

- JHEP 09 (2007) 126
•
e-Print:
- 0707.3088
•
DOI:
- 10.1088/1126-6708/2007/09/126

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