Abstract
We investigate top quark pair production near the threshold where the pair invariant mass \( {M}_{t\overline{t}} \) approaches 2mt, which provides sensitive observables to extract the top quark mass mt. Using the effective field theory methods, we derive a factorization and resummation formula for kinematic distributions in the threshold limit up to the next-to- leading power, which resums higher order Coulomb corrections to all orders in the strong coupling constant. Our formula is similar to those in the literature but differs in several important aspects. We apply our formula to the \( {M}_{t\overline{t}} \) distribution, as well as to the double differential cross section with respect to \( {M}_{t\overline{t}} \) and the rapidity of the \( t\overline{t} \) pair. We find that the resummation effects significantly increase the cross sections near the threshold, and lead to predictions better compatible with experimental data than the fixed-order ones. We demonstrate that incorporating resummation effects in the top quark mass determination can shift the extracted value of mt by as large as 1.4 GeV. The shift is much larger than the estimated uncertainties in previous experimental studies, and leads to a value of the top quark pole mass more consistent with the current world average.
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References
Particle Data Group collaboration, Review of Particle Physics, Phys. Rev. D 98 (2018) 030001 [INSPIRE].
P. Nason, The Top Mass in Hadronic Collisions, arXiv:1712.02796 [INSPIRE].
G. Corcella, The top-quark mass: challenges in definition and determination, Front. Phys. 7 (2019) 54 [arXiv:1903.06574] [INSPIRE].
J. Kieseler, K. Lipka and S.-O. Moch, Calibration of the Top-Quark Monte Carlo Mass, Phys. Rev. Lett. 116 (2016) 162001 [arXiv:1511.00841] [INSPIRE].
M. Butenschoen, B. Dehnadi, A.H. Hoang, V. Mateu, M. Preisser and I.W. Stewart, Top Quark Mass Calibration for Monte Carlo Event Generators, Phys. Rev. Lett. 117 (2016) 232001 [arXiv:1608.01318] [INSPIRE].
A.H. Hoang, S. Plätzer and D. Samitz, On the Cutoff Dependence of the Quark Mass Parameter in Angular Ordered Parton Showers, JHEP 10 (2018) 200 [arXiv:1807.06617] [INSPIRE].
M. Boronat et al., Top quark mass measurement in radiative events at electron-positron colliders, Phys. Lett. B 804 (2020) 135353 [arXiv:1912.01275] [INSPIRE].
M. Beneke and V.M. Braun, Heavy quark effective theory beyond perturbation theory: Renormalons, the pole mass and the residual mass term, Nucl. Phys. B 426 (1994) 301 [hep-ph/9402364] [INSPIRE].
M. Beneke, More on ambiguities in the pole mass, Phys. Lett. B 344 (1995) 341 [hep-ph/9408380] [INSPIRE].
M. Beneke, P. Marquard, P. Nason and M. Steinhauser, On the ultimate uncertainty of the top quark pole mass, Phys. Lett. B 775 (2017) 63 [arXiv:1605.03609] [INSPIRE].
A.H. Hoang, C. Lepenik and M. Preisser, On the Light Massive Flavor Dependence of the Large Order Asymptotic Behavior and the Ambiguity of the Pole Mass, JHEP 09 (2017) 099 [arXiv:1706.08526] [INSPIRE].
S. Ferrario Ravasio, P. Nason and C. Oleari, All-orders behaviour and renormalons in top-mass observables, JHEP 01 (2019) 203 [arXiv:1810.10931] [INSPIRE].
A.L. Kataev and V.S. Molokoedov, Multiloop contributions to the on-shell-\( \overline{MS} \)heavy quark mass relation in QCD and the asymptotic structure of the corresponding series, arXiv:1807.05406 [INSPIRE].
A.L. Kataev and V.S. Molokoedov, Dependence of Five- and Six-Loop Estimated QCD Corrections to the Relation between Pole and Running Masses of Heavy Quarks on the Number of Light Flavors, JETP Lett. 108 (2018) 777 [arXiv:1811.02867] [INSPIRE].
ATLAS collaboration, Measurement of lepton differential distributions and the top quark mass in \( t\overline{t} \)production in pp collisions at \( \sqrt{s} \) = 8 TeV with the ATLAS detector, Eur. Phys. J. C 77 (2017) 804 [arXiv:1709.09407] [INSPIRE].
CMS collaboration, Measurement of \( \mathrm{t}\overline{\mathrm{t}} \)normalised multi-differential cross sections in pp collisions at \( \sqrt{s} \) = 13 TeV and simultaneous determination of the strong coupling strength, top quark pole mass and parton distribution functions, arXiv:1904.05237 [INSPIRE].
S. Alioli et al., A new observable to measure the top-quark mass at hadron colliders, Eur. Phys. J. C 73 (2013) 2438 [arXiv:1303.6415] [INSPIRE].
ATLAS collaboration, Determination of the top-quark pole mass using \( t\overline{t} \) + 1-jet events collected with the ATLAS experiment in 7 TeV pp collisions, JHEP 10 (2015) 121 [arXiv:1507.01769] [INSPIRE].
J. Fuster, A. Irles, D. Melini, P. Uwer and M. Vos, Extracting the top-quark running mass using \( t\overline{t} \) + 1-jet events produced at the Large Hadron Collider, Eur. Phys. J. C 77 (2017) 794 [arXiv:1704.00540] [INSPIRE].
G. Bevilacqua, H.B. Hartanto, M. Kraus, M. Schulze and M. Worek, Top quark mass studies with \( t\overline{t} \)j at the LHC, JHEP 03 (2018) 169 [arXiv:1710.07515] [INSPIRE].
ATLAS collaboration, Measurement of the top-quark mass in \( t\overline{t} \)+ 1-jet events collected with the ATLAS detector in pp collisions at \( \sqrt{s} \) = 8 TeV, JHEP 11 (2019) 150 [arXiv:1905.02302] [INSPIRE].
D. Pagani, I. Tsinikos and M. Zaro, The impact of the photon PDF and electroweak corrections on \( t\overline{t} \)distributions, Eur. Phys. J. C 76 (2016) 479 [arXiv:1606.01915] [INSPIRE].
M. Czakon, D. Heymes, A. Mitov, D. Pagani, I. Tsinikos and M. Zaro, Top-pair production at the LHC through NNLO QCD and NLO EW, JHEP 10 (2017) 186 [arXiv:1705.04105] [INSPIRE].
M.L. Czakon et al., Top quark pair production at NNLO+NNLL′ in QCD combined with electroweak corrections, arXiv:1901.08281 [INSPIRE].
P. Bärnreuther, M. Czakon and A. Mitov, Percent Level Precision Physics at the Tevatron: First Genuine NNLO QCD Corrections to t\( q\overline{q}\to t\overline{t} \) + X , Phys. Rev. Lett. 109 (2012) 132001 [arXiv:1204.5201] [INSPIRE].
M. Czakon and A. Mitov, NNLO corrections to top-pair production at hadron colliders: the all-fermionic scattering channels, JHEP 12 (2012) 054 [arXiv:1207.0236] [INSPIRE].
M. Czakon and A. Mitov, NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction, JHEP 01 (2013) 080 [arXiv:1210.6832] [INSPIRE].
M. Czakon, P. Fiedler and A. Mitov, Total Top-Quark Pair-Production Cross Section at Hadron Colliders Through \( O\left({\alpha}_S^4\right) \), Phys. Rev. Lett. 110 (2013) 252004 [arXiv:1303.6254] [INSPIRE].
M. Czakon, P. Fiedler and A. Mitov, Resolving the Tevatron Top Quark Forward-Backward Asymmetry Puzzle: Fully Differential Next-to-Next-to-Leading-Order Calculation, Phys. Rev. Lett. 115 (2015) 052001 [arXiv:1411.3007] [INSPIRE].
M. Czakon, D. Heymes and A. Mitov, High-precision differential predictions for top-quark pairs at the LHC, Phys. Rev. Lett. 116 (2016) 082003 [arXiv:1511.00549] [INSPIRE].
M. Czakon, D. Heymes and A. Mitov, Dynamical scales for multi-TeV top-pair production at the LHC, JHEP 04 (2017) 071 [arXiv:1606.03350] [INSPIRE].
S. Catani, S. Devoto, M. Grazzini, S. Kallweit, J. Mazzitelli and H. Sargsyan, Top-quark pair hadroproduction at next-to-next-to-leading order in QCD, Phys. Rev. D 99 (2019) 051501 [arXiv:1901.04005] [INSPIRE].
S. Catani, S. Devoto, M. Grazzini, S. Kallweit and J. Mazzitelli, Top-quark pair production at the LHC: Fully differential QCD predictions at NNLO, JHEP 07 (2019) 100 [arXiv:1906.06535] [INSPIRE].
N. Kidonakis and G.F. Sterman, Subleading logarithms in QCD hard scattering, Phys. Lett. B 387 (1996) 867 [INSPIRE].
N. Kidonakis and G.F. Sterman, Resummation for QCD hard scattering, Nucl. Phys. B 505 (1997) 321 [hep-ph/9705234] [INSPIRE].
V. Ahrens, A. Ferroglia, M. Neubert, B.D. Pecjak and L.L. Yang, Renormalization-Group Improved Predictions for Top-Quark Pair Production at Hadron Colliders, JHEP 09 (2010) 097 [arXiv:1003.5827] [INSPIRE].
A. Ferroglia, B.D. Pecjak and L.L. Yang, Soft-gluon resummation for boosted top-quark production at hadron colliders, Phys. Rev. D 86 (2012) 034010 [arXiv:1205.3662] [INSPIRE].
B.D. Pecjak, D.J. Scott, X. Wang and L.L. Yang, Resummed differential cross sections for top-quark pairs at the LHC, Phys. Rev. Lett. 116 (2016) 202001 [arXiv:1601.07020] [INSPIRE].
B.D. Pecjak, D.J. Scott, X. Wang and L.L. Yang, Resummation for rapidity distributions in top-quark pair production, JHEP 03 (2019) 060 [arXiv:1811.10527] [INSPIRE].
M. Czakon et al., Resummation for (boosted) top-quark pair production at NNLO+NNLL’ in QCD, JHEP 05 (2018) 149 [arXiv:1803.07623] [INSPIRE].
CMS collaboration, Measurements of \( t\overline{t} \)differential cross sections in proton-proton collisions at \( \sqrt{s} \) = 13 TeV using events containing two leptons, JHEP 02 (2019) 149 [arXiv:1811.06625] [INSPIRE].
ATLAS collaboration, Measurements of \( t\overline{t} \)differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at \( \sqrt{s} \) = 13 TeV using the ATLAS detector, Phys. Rev. D 98 (2018) 012003 [arXiv:1801.02052] [INSPIRE].
CMS collaboration, Measurement of differential cross sections for the production of top quark pairs and of additional jets in lepton+jets events from pp collisions at \( \sqrt{s} \) = 13 TeV, Phys. Rev. D 97 (2018) 112003 [arXiv:1803.08856] [INSPIRE].
CMS collaboration, Measurement of the top quark polarization and \( t\overline{t} \)spin correlations using dilepton final states in proton-proton collisions at \( \sqrt{s} \) = 13 TeV, Phys. Rev. D 100 (2019) 072002 [arXiv:1907.03729] [INSPIRE].
ATLAS collaboration, Measurements of top-quark pair differential and double-differential cross-sections in the ℓ +jets channel with pp collisions at \( \sqrt{s} \) = 13 TeV using the ATLAS detector, Eur. Phys. J. C 79 (2019) 1028 [arXiv:1908.07305] [INSPIRE].
V.S. Fadin, V.A. Khoze and T. Sjöstrand, On the Threshold Behavior of Heavy Top Production, Z. Phys. C 48 (1990) 613 [INSPIRE].
G.T. Bodwin, E. Braaten and G.P. Lepage, Rigorous QCD analysis of inclusive annihilation and production of heavy quarkonium, Phys. Rev. D 51 (1995) 1125 [Erratum ibid. D 55 (1997) 5853] [hep-ph/9407339] [INSPIRE].
A. Petrelli, M. Cacciari, M. Greco, F. Maltoni and M.L. Mangano, NLO production and decay of quarkonium, Nucl. Phys. B 514 (1998) 245 [hep-ph/9707223] [INSPIRE].
K. Hagiwara, Y. Sumino and H. Yokoya, Bound-state Effects on Top Quark Production at Hadron Colliders, Phys. Lett. B 666 (2008) 71 [arXiv:0804.1014] [INSPIRE].
Y. Kiyo, J.H. Kühn, S. Moch, M. Steinhauser and P. Uwer, Top-quark pair production near threshold at LHC, Eur. Phys. J. C 60 (2009) 375 [arXiv:0812.0919] [INSPIRE].
A.H. Hoang and T. Teubner, Top quark pair production close to threshold: Top mass, width and momentum distribution, Phys. Rev. D 60 (1999) 114027 [hep-ph/9904468] [INSPIRE].
M. Beneke, A.P. Chapovsky, A. Signer and G. Zanderighi, Effective theory approach to unstable particle production, Phys. Rev. Lett. 93 (2004) 011602 [hep-ph/0312331] [INSPIRE].
M. Beneke, A.P. Chapovsky, A. Signer and G. Zanderighi, Effective theory calculation of resonant high-energy scattering, Nucl. Phys. B 686 (2004) 205 [hep-ph/0401002] [INSPIRE].
A.H. Hoang and C.J. Reisser, Electroweak absorptive parts in NRQCD matching conditions, Phys. Rev. D 71 (2005) 074022 [hep-ph/0412258] [INSPIRE].
M. Beneke, B. Jantzen and P. Ruiz-Femenia, Electroweak non-resonant NLO corrections to e+ e− → W + W − \( b\overline{b} \)in the \( t\overline{t} \)resonance region, Nucl. Phys. B 840 (2010) 186 [arXiv:1004.2188] [INSPIRE].
M. Beneke, A. Maier, T. Rauh and P. Ruiz-Femenia, Non-resonant and electroweak NNLO correction to the e+ e− top anti-top threshold, JHEP 02 (2018) 125 [arXiv:1711.10429] [INSPIRE].
W.-L. Ju, G. Wang, X. Wang, X. Xu, Y. Xu and L.L. Yang, Invariant-mass distribution of top-quark pairs and top-quark mass determination, arXiv:1908.02179 [INSPIRE].
J.C. Collins, D.E. Soper and G.F. Sterman, Factorization of Hard Processes in QCD, Adv. Ser. Direct. High Energy Phys. 5 (1989) 1 [hep-ph/0409313] [INSPIRE].
A. Buckley et al., LHAPDF6: parton density access in the LHC precision era, Eur. Phys. J. C 75 (2015) 132 [arXiv:1412.7420] [INSPIRE].
P. Nason, S. Dawson and R.K. Ellis, The One Particle Inclusive Differential Cross-Section for Heavy Quark Production in Hadronic Collisions, Nucl. Phys. B 327 (1989) 49 [Erratum ibid. B 335 (1990) 260] [INSPIRE].
M.L. Mangano, P. Nason and G. Ridolfi, Heavy quark correlations in hadron collisions at next-to-leading order, Nucl. Phys. B 373 (1992) 295 [INSPIRE].
S. Frixione, M.L. Mangano, P. Nason and G. Ridolfi, Top quark distributions in hadronic collisions, Phys. Lett. B 351 (1995) 555 [hep-ph/9503213] [INSPIRE].
J.M. Campbell and R.K. Ellis, MCFM for the Tevatron and the LHC, Nucl. Phys. Proc. Suppl. 205-206 (2010) 10 [arXiv:1007.3492] [INSPIRE].
fastNLO collaboration, New features in version 2 of the fastNLO project, arXiv:1208.3641 [INSPIRE].
M. Czakon, D. Heymes and A. Mitov, fastNLO tables for NNLO top-quark pair differential distributions, arXiv:1704.08551 [INSPIRE].
W. Beenakker, A. Denner, W. Hollik, R. Mertig, T. Sack and D. Wackeroth, Electroweak one loop contributions to top pair production in hadron colliders, Nucl. Phys. B 411 (1994) 343 [INSPIRE].
W. Bernreuther, M. Fücker and Z.G. Si, Mixed QCD and weak corrections to top quark pair production at hadron colliders, Phys. Lett. B 633 (2006) 54 [Erratum ibid. B 644 (2007) 386] [hep-ph/0508091] [INSPIRE].
J.H. Kühn, A. Scharf and P. Uwer, Electroweak corrections to top-quark pair production in quark-antiquark annihilation, Eur. Phys. J. C 45 (2006) 139 [hep-ph/0508092] [INSPIRE].
W. Bernreuther, M. Fuecker and Z.-G. Si, Weak interaction corrections to hadronic top quark pair production, Phys. Rev. D 74 (2006) 113005 [hep-ph/0610334] [INSPIRE].
J.H. Kühn, A. Scharf and P. Uwer, Electroweak effects in top-quark pair production at hadron colliders, Eur. Phys. J. C 51 (2007) 37 [hep-ph/0610335] [INSPIRE].
W. Hollik and M. Kollar, NLO QED contributions to top-pair production at hadron collider, Phys. Rev. D 77 (2008) 014008 [arXiv:0708.1697] [INSPIRE].
W. Bernreuther, M. Fücker and Z.-G. Si, Weak interaction corrections to hadronic top quark pair production: Contributions from quark-gluon and b̄b induced reactions, Phys. Rev. D 78 (2008) 017503 [arXiv:0804.1237] [INSPIRE].
W. Bernreuther and Z.-G. Si, Distributions and correlations for top quark pair production and decay at the Tevatron and LHC, Nucl. Phys. B 837 (2010) 90 [arXiv:1003.3926] [INSPIRE].
W. Hollik and D. Pagani, The electroweak contribution to the top quark forward-backward asymmetry at the Tevatron, Phys. Rev. D 84 (2011) 093003 [arXiv:1107.2606] [INSPIRE].
J.H. Kühn and G. Rodrigo, Charge asymmetries of top quarks at hadron colliders revisited, JHEP 01 (2012) 063 [arXiv:1109.6830] [INSPIRE].
A.V. Manohar and M. Trott, Electroweak Sudakov Corrections and the Top Quark Forward-Backward Asymmetry, Phys. Lett. B 711 (2012) 313 [arXiv:1201.3926] [INSPIRE].
W. Bernreuther and Z.-G. Si, Top quark and leptonic charge asymmetries for the Tevatron and LHC, Phys. Rev. D 86 (2012) 034026 [arXiv:1205.6580] [INSPIRE].
J.H. Kühn, A. Scharf and P. Uwer, Weak Interactions in Top-Quark Pair Production at Hadron Colliders: An Update, Phys. Rev. D 91 (2015) 014020 [arXiv:1305.5773] [INSPIRE].
J.M. Campbell, D. Wackeroth and J. Zhou, Electroweak Corrections at the LHC with MCFM, PoS DIS2015 (2015) 130 [arXiv:1508.06247] [INSPIRE].
M. Czakon, D. Heymes, A. Mitov, D. Pagani, I. Tsinikos and M. Zaro, Top-quark charge asymmetry at the LHC and Tevatron through NNLO QCD and NLO EW, Phys. Rev. D 98 (2018) 014003 [arXiv:1711.03945] [INSPIRE].
C. Gütschow, J.M. Lindert and M. Schönherr, Multi-jet merged top-pair production including electroweak corrections, Eur. Phys. J. C 78 (2018) 317 [arXiv:1803.00950] [INSPIRE].
A. Pineda and J. Soto, Effective field theory for ultrasoft momenta in NRQCD and NRQED, Nucl. Phys. Proc. Suppl. 64 (1998) 428 [hep-ph/9707481] [INSPIRE].
N. Brambilla, A. Pineda, J. Soto and A. Vairo, Potential NRQCD: An effective theory for heavy quarkonium, Nucl. Phys. B 566 (2000) 275 [hep-ph/9907240] [INSPIRE].
M. Beneke, Perturbative heavy quark-antiquark systems, hep-ph/9911490 [INSPIRE].
M. Beneke, A. Signer and V.A. Smirnov, Top quark production near threshold and the top quark mass, Phys. Lett. B 454 (1999) 137 [hep-ph/9903260] [INSPIRE].
C.W. Bauer, S. Fleming and M.E. Luke, Summing Sudakov logarithms in B → Xs γ in effective field theory, Phys. Rev. D 63 (2000) 014006 [hep-ph/0005275] [INSPIRE].
C.W. Bauer, S. Fleming, D. Pirjol and I.W. Stewart, An effective field theory for collinear and soft gluons: Heavy to light decays, Phys. Rev. D 63 (2001) 114020 [hep-ph/0011336] [INSPIRE].
C.W. Bauer, D. Pirjol and I.W. Stewart, Soft collinear factorization in effective field theory, Phys. Rev. D 65 (2002) 054022 [hep-ph/0109045] [INSPIRE].
M. Beneke, A.P. Chapovsky, M. Diehl and T. Feldmann, Soft collinear effective theory and heavy to light currents beyond leading power, Nucl. Phys. B 643 (2002) 431 [hep-ph/0206152] [INSPIRE].
M. Beneke and T. Feldmann, Multipole expanded soft collinear effective theory with nonAbelian gauge symmetry, Phys. Lett. B 553 (2003) 267 [hep-ph/0211358] [INSPIRE].
T. Kinoshita, Mass singularities of Feynman amplitudes, J. Math. Phys. 3 (1962) 650 [INSPIRE].
T.D. Lee and M. Nauenberg, Degenerate Systems and Mass Singularities, Phys. Rev. 133 (1964) B1549 [INSPIRE].
M. Beneke, P. Falgari and C. Schwinn, Threshold resummation for pair production of coloured heavy (s)particles at hadron colliders, Nucl. Phys. B 842 (2011) 414 [arXiv:1007.5414] [INSPIRE].
B.A. Kniehl, A.A. Penin, V.A. Smirnov and M. Steinhauser, Potential NRQCD and heavy quarkonium spectrum at next-to-next-to-next-to-leading order, Nucl. Phys. B 635 (2002) 357 [hep-ph/0203166] [INSPIRE].
W. Fischler, Quark-antiquark Potential in QCD, Nucl. Phys. B 129 (1977) 157 [INSPIRE].
A. Billoire, How Heavy Must Be Quarks in Order to Build Coulombic qq̄ Bound States, Phys. Lett. 92B (1980) 343 [INSPIRE].
M. Beneke, M. Czakon, P. Falgari, A. Mitov and C. Schwinn, Threshold expansion of the \( gg\left(q\overline{q}\right)\to \overline{QQ} \) + X cross section at \( O\left({\alpha}_s^4\right) \), Phys. Lett. B 690 (2010) 483 [arXiv:0911.5166] [INSPIRE].
W.-L. Ju and L.L. Yang, Resummation of soft and Coulomb corrections for \( t\overline{t} \)h production at the LHC, JHEP 06 (2019) 050 [arXiv:1904.08744] [INSPIRE].
A. Pineda and A. Signer, Heavy Quark Pair Production near Threshold with Potential Non-Relativistic QCD, Nucl. Phys. B 762 (2007) 67 [hep-ph/0607239] [INSPIRE].
M. Beneke, P. Falgari, S. Klein and C. Schwinn, Hadronic top-quark pair production with NNLL threshold resummation, Nucl. Phys. B 855 (2012) 695 [arXiv:1109.1536] [INSPIRE].
T. Hahn, Generating Feynman diagrams and amplitudes with FeynArts 3, Comput. Phys. Commun. 140 (2001) 418 [hep-ph/0012260] [INSPIRE].
R. Mertig, M. Böhm and A. Denner, FEYN CALC: Computer algebraic calculation of Feynman amplitudes, Comput. Phys. Commun. 64 (1991) 345 [INSPIRE].
V. Shtabovenko, R. Mertig and F. Orellana, New Developments in FeynCalc 9.0, Comput. Phys. Commun. 207 (2016) 432 [arXiv:1601.01167] [INSPIRE].
V. Shtabovenko, R. Mertig and F. Orellana, FeynCalc 9.3: New features and improvements, arXiv:2001.04407 [INSPIRE].
A. von Manteuffel and C. Studerus, Reduze 2 — Distributed Feynman Integral Reduction, arXiv:1201.4330 [INSPIRE].
NNPDF collaboration, Parton distributions from high-precision collider data, Eur. Phys. J. C 77 (2017) 663 [arXiv:1706.00428] [INSPIRE].
M. Beneke and P. Ruiz-Femenia, Threshold singularities, dispersion relations and fixed-order perturbative calculations, JHEP 08 (2016) 145 [arXiv:1606.02434] [INSPIRE].
CMS collaboration, Measurement of the differential cross section for top quark pair production in pp collisions at \( \sqrt{s} \) = 8 TeV, Eur. Phys. J. C 75 (2015) 542 [arXiv:1505.04480] [INSPIRE].
ATLAS collaboration, Measurements of top-quark pair differential cross-sections in the lepton+jets channel in pp collisions at \( \sqrt{s} \) = 8 TeV using the ATLAS detector, Eur. Phys. J. C 76 (2016) 538 [arXiv:1511.04716] [INSPIRE].
G.C. Nayak, J.-W. Qiu and G.F. Sterman, Fragmentation, NRQCD and NNLO factorization analysis in heavy quarkonium production, Phys. Rev. D 72 (2005) 114012 [hep-ph/0509021] [INSPIRE].
G.C. Nayak, J.-W. Qiu and G.F. Sterman, Fragmentation, factorization and infrared poles in heavy quarkonium production, Phys. Lett. B 613 (2005) 45 [hep-ph/0501235] [INSPIRE].
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Ju, WL., Wang, G., Wang, X. et al. Top quark pair production near threshold: single/double distributions and mass determination. J. High Energ. Phys. 2020, 158 (2020). https://doi.org/10.1007/JHEP06(2020)158
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DOI: https://doi.org/10.1007/JHEP06(2020)158