Spin correlation in top-quark pairs

Physics Today ◽  
2012 ◽  
Keyword(s):  
Top Quark ◽  
Spin Correlation ◽  
Quark Pairs ◽  
Top Quark Pairs

SPIN CORRELATION EFFECTS IN THE HADROPRODUCTION AND DECAY OF VERY HEAVY TOP QUARK PAIRS

1989 ◽  
Vol 04 (03) ◽  
pp. 617-625 ◽  
Author(s):  
V. BARGER ◽  
J. OHNEMUS ◽  
R. J. N. PHILLIPS
Keyword(s):  
Top Quark ◽  
Spin Correlation ◽  
Weak Decay ◽  
Tree Level ◽  
Matrix Elements ◽  
Correlation Effects ◽  
Quark Pairs ◽  
Quark Spin ◽  
Dilepton Events ◽  
Top Quark Pairs

Density matrix techniques in the helicity basis allow us to write down explicitly the squared matrix elements for tree-level hadroproduction and weak decay of very heavy top quark pairs, that decay before hadronization. This treatment includes the full effects of quark spin correlation. We illustrate the effects of spin correlation on physical distributions in [Formula: see text] dilepton events, [Formula: see text], [Formula: see text], [Formula: see text], for the case mt =120 GeV at [Formula: see text], the energy of the Tevatron collider. The effects of spin correlation are quantitatively small compared to calculations that ignore them, giving corrections of order 10% or less in the physical distributions studied.

Spin correlation in top-quark pairs

Physics Today ◽  
2012 ◽  
Vol 65 (7) ◽  
pp. 17-17
Author(s):  
Bertram M. Schwarzschild
Keyword(s):  
Top Quark ◽  
Spin Correlation ◽  
Quark Pairs ◽  
Top Quark Pairs

scholarly journals Invariant-mass distribution of top-quark pairs and top-quark mass determination

2020 ◽  
Vol 44 (9) ◽  
pp. 091001
Author(s):  
Wan-Li Ju ◽  
Guoxing Wang ◽  
Xing Wang ◽  
Xiaofeng Xu ◽  
Yongqi Xu ◽  
...  
Keyword(s):  
Invariant Mass ◽  
Mass Distribution ◽  
Top Quark ◽  
Quark Mass ◽  
Invariant Mass Distribution ◽  
Mass Determination ◽  
Top Quark Mass ◽  
Quark Pairs ◽  
Top Quark Pairs

scholarly journals Supersymmetric QCD parity nonconservation in top quark pairs at the Tevatron

1998 ◽  
Vol 424 (1-2) ◽  
pp. 76-84 ◽  
Author(s):  
Chong Sheng Li ◽  
C.-P. Yuan ◽  
Hong-Yi Zhou
Keyword(s):  
Top Quark ◽  
Parity Nonconservation ◽  
Quark Pairs ◽  
Top Quark Pairs

scholarly journals High-Precision Differential Predictions for Top-Quark Pairs at the LHC

2016 ◽  
Vol 116 (8) ◽  
Author(s):  
Michal Czakon ◽  
David Heymes ◽  
Alexander Mitov
Keyword(s):  
High Precision ◽  
Top Quark ◽  
Quark Pairs ◽  
Top Quark Pairs

scholarly journals Measurement of the W boson helicity fractions in the decays of top quark pairs to lepton + jets final states produced in pp collisions at s=8TeV

2016 ◽  
Vol 762 ◽  
pp. 512-534 ◽  
Author(s):  
V. Khachatryan ◽  
A.M. Sirunyan ◽  
A. Tumasyan ◽  
W. Adam ◽  
E. Asilar ◽  
...  
Keyword(s):  
Top Quark ◽  
W Boson ◽  
Final States ◽  
Pp Collisions ◽  
Quark Pairs ◽  
Lepton Jets ◽  
Top Quark Pairs
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