scholarly journals Top-quark mass determination from t-channel single top production at the LHC

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Mei Sen Gao ◽  
Shu Run Yuan ◽  
Jun Gao
Keyword(s):  
Top Quark ◽  
Charged Lepton ◽  
Quark Mass ◽  
Top Quark Mass ◽  
Narrow Width Approximation ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production ◽  
Narrow Width

Abstract We study the determination of the top-quark mass using leptonic observables in t-channel single top-quark production at the LHC. We demonstrate sensitivity of transverse momentum of the charged lepton on the input top-quark mass. We present predictions at next-to-next-to-leading order (NNLO) in QCD with narrow width approximation and structure function approach. Further corrections due to parton shower and hadronization, non-resonant and non-factorized contributions are discussed. To reduce impact of SM backgrounds we propose to use the charge weighted distribution for the measurement, i.e., differences between distributions of charged lepton with positive and negative charges. By modeling both signal and background processes, we found the projections for (HL-)LHC to be promising, with a total theoretical uncertainty on the extracted top-quark mass of about 1 ∼ 2 GeV.

scholarly journals Top quark production near threshold and the top quark mass

1999 ◽  
Vol 454 (1-2) ◽  
pp. 137-146 ◽  
Author(s):  
M. Beneke ◽  
A. Signer ◽  
V.A. Smirnov
Keyword(s):  
Top Quark ◽  
Quark Mass ◽  
Top Quark Mass ◽  
Top Quark Production ◽  
Quark Production ◽  
Near Threshold

scholarly journals Evidence for Top Quark Production in pp Collisions at vs = 1.8 TeV

1995 ◽  
Vol 48 (2) ◽  
pp. 207
Author(s):  
Paul L Tipton for the CDF Collaboration
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Quark Mass ◽  
W Boson ◽  
Production Cross ◽  
W Bosons ◽  
Top Quark Mass ◽  
Pp Collisions ◽  
Top Quark Production ◽  
Quark Production

We summarise a search for the top quark with the Collider Detector at Fermilab (CDF) in a sample of pp collisions at Vs = 1� 8 Te V with an integrated luminosity of 19�3 pb ~ 1. We find 12 events consistent with either two W bosons, or a W boson and at least one b jet. Both of these are signatures for tt events. The probability that the measured yield is consistent with the background is 0�26%. Though the statistics are too limited to establish firmly the existence of the top quark, a natural interpretation of the excess is that it is due to tt production. Under this assumption, constrained fits to individual events yield a top quark mass of 174 � lO:::g GeV / c2? The tt production cross section is measured to be 13.9:::~:~ pb.

OBSERVATION OF THE TOP QUARK

1996 ◽  
Vol 11 (21) ◽  
pp. 3819-3848
Author(s):  
SOO-BONG KIM
Keyword(s):  
Top Quark ◽  
Quark Mass ◽  
Production Cross ◽  
Top Quark Mass ◽  
Text Production ◽  
Top Quark Production ◽  
Top Quark Decay ◽  
Quark Production ◽  
Quark Decay ◽  
Kinematic Properties

Top-quark production is observed in [Formula: see text] collisions at [Formula: see text] at the Fermilab Tevatron. The CDF and DØ collaborations observe signals consistent with [Formula: see text] to [Formula: see text] but inconsistent with the background prediction by 4.8σ (CDF) and 4.6σ (DØ). Additional evidence for the top quark is provided by a peak in the reconstructed mass distribution. The kinematic properties of the excess events are consistent with the top-quark decay. The top-quark mass has been measured to be 176±8 (stat.) ±10 (sys.) GeV /c2 (CDF) and [Formula: see text]±22(sys.)GeV/c2 (DØ), and the [Formula: see text]-production cross section to be [Formula: see text] and 6.4±2.2 pb (DØ).

scholarly journals TOP QUARK PHYSICS

2008 ◽  
Vol 23 (27n28) ◽  
pp. 4421-4433 ◽  
Author(s):  
◽  
ERICH W. VARNES
Keyword(s):  
Top Quark ◽  
Production Cross ◽  
New Physics ◽  
Recent Measurement ◽  
Top Quark Mass ◽  
Text Production ◽  
Single Top ◽  
The Standard Model ◽  
Top Quark Production ◽  
Quark Production

A review is presented of the current experimental status of the top quark sector of the Standard Model. The measurements summarized include searches for electroweak single top production, the latest results on the [Formula: see text] production cross-section, and searches for new physics in top quark production and decay. In addition, the recent measurement of the top quark mass to a precision of 0.7% is highlighted.

scholarly journals Evidence fors-Channel Single-Top-Quark Production in Events with One Charged Lepton and Two Jets at CDF

2014 ◽  
Vol 112 (23) ◽  
Author(s):  
T. Aaltonen ◽  
S. Amerio ◽  
D. Amidei ◽  
A. Anastassov ◽  
A. Annovi ◽  
...  
Keyword(s):  
Top Quark ◽  
Charged Lepton ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production ◽  
Two Jets

scholarly journals Determination of the top-quark mass from hadro-production of single top-quarks

2016 ◽  
Vol 763 ◽  
pp. 341-346 ◽  
Author(s):  
S. Alekhin ◽  
S. Moch ◽  
S. Thier
Keyword(s):  
Top Quark ◽  
Quark Mass ◽  
Top Quarks ◽  
Top Quark Mass ◽  
Single Top

scholarly journals Search for FCNC single top-quark production at s=7 TeV with the ATLAS detector

2012 ◽  
Vol 712 (4-5) ◽  
pp. 351-369 ◽  
Author(s):  
G. Aad ◽  
B. Abbott ◽  
J. Abdallah ◽  
A.A. Abdelalim ◽  
A. Abdesselam ◽  
...  
Keyword(s):  
Top Quark ◽  
Atlas Detector ◽  
Single Top ◽  
Top Quark Production ◽  
Quark Production
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