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Differential $$ t\overline{t} $$ cross-section measurements using boosted top quarks in the all-hadronic final state with 139 fb−1 of ATLAS data

descriptionPublicationkeyboard_double_arrow_right Article , Research , Report , Other literature type , Preprint 18 Apr 2023Embargo end date: 01 Jan 2022 Italy, Italy, Norway, Germany, United Kingdom, Spain, Sweden, South Africa, Italy, Denmark, Italy, Germany, United States, Germany, United Kingdom, Italy, Italy, Netherlands, South Africa, Netherlands, Italy, Poland, Italy, Italy, Netherlands, Italy, Norway, France, United Kingdom, Chile, Netherlands, China (People's Republic of), Germany, Italy, China (People's Republic of), Turkey, Australia, Spain, Italy, Italy, Italy Publisher:Springer Science and Business Media LLCJournal:Journal of High Energy Physics, volume 2,023 (eissn: 1029-8479,

Authors: Aad, Georges; Abbott, Braden Keim; Abbott, D. C.; Abed Abud, Adam; Abeling, Kira; Abhayasinghe, Deshan Kavishka; Abidi, Haider; +193 Authors

Aad, Georges; Abbott, Braden Keim; Abbott, D. C.; Abed Abud, Adam; Abeling, Kira; Abhayasinghe, Deshan Kavishka; Abidi, Haider; Aboulhorma, Asmaa; Abramowicz, Halina; Abreu, Henso; Abulaiti, Yiming; Abusleme Hoffman, A. C.; Acharya, Bobby Samir; Achkar, Baida; Adam, Lennart; Adam Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Addepalli, Sagar; Adelman, Jahred; Adiguzel, Aytul; Adorni Braccesi Chiassi, Sofia; Adye, Tim; Affolder, Tony; Affolder, A. A.; Afik, Yoav; Agapopoulou, Christina; Agaras, Merve Nazlim; Agarwala, Jinky; Aggarwal, Anamika; Agheorghiesei, Catalin; Aguilar Saavedra, Juan Antonio; Ahmad, Ammara; Ahmadov, Faig; Ahmed, Waleed Syed; Ai, Xiaocong; Aielli, Giulio; Aizenberg, Iakov; Akatsuka, Shunichi; Akbiyik, Melike; Åkesson, T. P. A.; Akimov, Andrei; Al Khoury, Konie; Alberghi, Gian Luigi; Albert, Justin; Albicocco, Pietro; Alconada Verzini, M. J.; Alderweireldt, Sara; Aleksa, Martin; Aleksandrov, I. N.; Alexa, Calin; Alexopoulos, Theodoros; Alfonsi, Alice; Alfonsi, Fabrizio; Alhroob, Muhammad; Ali, Babar; Ali, Shahzad; Aliev, Malik; Alimonti, Gianluca; Allaire, Corentin; Allbrooke, Benedict; Allport, Philip Patrick; Aloisio, Alberto; Alonso, Francisco; Alpigiani, Cristiano; Alunno Camelia, Elio; Alvarez Estevez, Manuel; Alviggi, Mariagrazia; Do Amaral Coutinho, Yara; Ambler, Alessandro; Ambroz, Luca; Amelung, Christoph; Amidei, Dante; Amor Dos Santos, Susana Patricia; Amoroso, Simone; Amos, Kieran Robert; Amrouche, Cherifa Sabrina; Ananiev, Viktor; Anastopoulos, Christos; Andari, Nansi; Andeen, Timothy Robert; Anders, John Kenneth; Andrean, Stefio Yosse; Andreazza, Attilio; Angelidakis, Stylianos; Angerami, Aaron; Anisenkov, Alexey; Annovi, Alberto; Antel, Claire; Anthony, Matthew Thomas; Antipov, Egor; Antonelli, Mario; Antrim, Daniel Joseph; Anulli, Fabio; Aoki, Masato; Aparisi Pozo, Javier Alberto; Aparo, Marco; Aperio Bella, Ludovica; Aranzabal Barrio, Nordin; Araujo Ferraz, Victor; Arcangeletti, Chiara; Arce, Ayana Tamu; Arena, Eloisa; Arguin, Jean-Francois; Argyropoulos, Spyros; Arling, Jan-Hendrik; Armbruster, Aaron James; Armstrong, Alexander; Arnaez, Olivier; Arnold, Hannah; Arrubarrena Tame, Zulit Paola; Artoni, Giacomo; Asada, Haruka; Asai, Kanae; Asai, Shoji; Asbah, Nedaa Alexandra; Asimakopoulou, Eleni Myrto; Asquith, Lily; Assahsah, Jihad; Assamagan, Ketevi Adikle; Astalos, Robert; Atkin, Ryan Justin; Atkinson, Markus Julian; Atlay, Naim Bora; Atmani, Hicham; Atmasiddha, Prachi; Augsten, Kamil; Auricchio, Silvia; Austrup, Volker Andreas; Avner, Gal; Avolio, Giuseppe; Ayoub, Mohamad Kassem; Azuelos, Georges; Babal, Dominik; Bachacou, Henri; Bachas, Konstantinos; Bachiu, Alexander; Backman, Karl Filip; Badea, Anthony; Bagnaia, Paolo; Bahmani, Marzieh; Bahrasemani, Sina; Bahrasemani, H.; Bailey, A. J.; Bailey, Virginia; Baines, J. T.; Bakalis, Christos; Baker, Keith; Bakker, Pepijn Johannes; Bakos, Evelin; Bakshi Gupta, Debottam; Balaji, Shyam; Balasubramanian, Rahul; Baldin, Evgenii; Balek, Petr; Ballabene, Eric; Balli, Fabrice; Baltes, Lisa Marie; Balunas, William Keaton; Balz, Johannes; Banas, Elzbieta; Bandieramonte, Marilena; Bandyopadhyay, Anjishnu; Bansal, Shubham; Barak, Liron; Barberio, Elisabetta; Barberis, Dario; Barbero, Marlon Benoit; Barbour, Gregory; Barends, Kevin Nicholas; Barillari, Teresa; Barisits, Martin; Barkeloo, Jason Tyler Colt; Barklow, Tim; Barnett, Bruce M.; Barnett, Michael; Baroncelli, Toni; Baroncelli, A.; Barone, Gaetano; Barr, A. J.; Barranco Navarro, Laura; Barreiro Alonso, Fernando; Barreiro Guimaraes Da Costa, Joao; Barron, Uriel; Barsov, Sergey; Bartels, Falk; Bartoldus, Rainer; Bartolini, Giovanni; Barton, Adam Edward; Bartos, Pavol; Basalaev, Artem; Basan, Alexander; Baselga Bacardit, Marta; Bashta, Inna; Bassalat, Ahmed; Basso, Matthew Joseph; Basson, Candice Ruth; Bates, Richard; Batlamous, Souad; Batley, Richard;

doi: 10.1007/jhep04(2023)080 , 10.3204/pubdb-2022-07163 , 10.3204/pubdb-2023-04873 , 10.48550/arxiv.2205.02817 , 10.3204/pubdb-2021-05281 , 10.14288/1.0438354

arXiv: http://arxiv.org/abs/2205.02817

Differential $$ t\overline{t} $$ cross-section measurements using boosted top quarks in the all-hadronic final state with 139 fb−1 of ATLAS data

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Abstract

Abstract Measurements of single-, double-, and triple-differential cross-sections are presented for boosted top-quark pair-production in 13 TeV proton–proton collisions recorded by the ATLAS detector at the LHC. The top quarks are observed through their hadronic decay and reconstructed as large-radius jets with the leading jet having transverse momentum (pT) greater than 500 GeV. The observed data are unfolded to remove detector effects. The particle-level cross-section, multiplied by the $$ t\overline{t}\to WWb\overline{b} $$ t t ¯ → WWb b ¯ branching fraction and measured in a fiducial phase space defined by requiring the leading and second-leading jets to have pT> 500 GeV and pT> 350 GeV, respectively, is 331 ± 3(stat.) ± 39(syst.) fb. This is approximately 20% lower than the prediction of $$ {398}_{-49}^{+48} $$ 398 − 49 + 48 fb by Powheg+Pythia 8 with next-to-leading-order (NLO) accuracy but consistent within the theoretical uncertainties. Results are also presented at the parton level, where the effects of top-quark decay, parton showering, and hadronization are removed such that they can be compared with fixed-order next-to-next-to-leading-order (NNLO) calculations. The parton-level cross-section, measured in a fiducial phase space similar to that at particle level, is 1.94 ± 0.02(stat.) ± 0.25(syst.) pb. This agrees with the NNLO prediction of $$ {1.96}_{-0.17}^{+0.02} $$ 1.96 − 0.17 + 0.02 pb. Reasonable agreement with the differential cross-sections is found for most NLO models, while the NNLO calculations are generally in better agreement with the data. The differential cross-sections are interpreted using a Standard Model effective field-theory formalism and limits are set on Wilson coefficients of several four-fermion operators.

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Italy, Italy, Norway, Germany, United Kingdom, Spain, Sweden, South Africa, Italy, Denmark, Italy, Germany, United States, Germany, United Kingdom, Italy, Italy, Netherlands, South Africa, Netherlands, Italy, Poland, Italy, Italy, Netherlands, Italy, Norway, France, United Kingdom, Chile, Netherlands, China (People's Republic of), Germany, Italy, China (People's Republic of), Turkey, Australia, Spain, Italy, Italy, Italy

Related Organizations

University of Sydney
Australia
University of Edinburgh
United Kingdom
University of Melbourne
Australia
Queen Mary University of London
United Kingdom
University Federico II of Naples
Italy

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Keywords

4902 Mathematical Physics, final state: ((n)jet), 13000 GeV-cms, top physics, QC770-798, transverse momentum dependence, Atomic, Mathematical Sciences, 510, High Energy Physics - Experiment, rapidity dependence, top: decay, Subatomär fysik, High Energy Physics - Experiment (hep-ex), Particle and Plasma Physics, effective field theory, Subatomic Physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], parton, info:eu-repo/classification/ddc/530, Mathematical Physics, hadron-hadron scattering, Hadron-Hadron Scattering; Jet Substructure and Boosted Jets; Top Physics;, Quantum Physics, higher-order: 2, Wilson, Particle physics, higher-order: 1, perturbation theory: higher-order, top: hadronic decay, Particle and High Energy Physics, Top Physics, ATLAS, Nuclear and Plasma Physics, Nuclear & Particles Physics, Settore FIS/01 - FISICA SPERIMENTALE, Nuclear and plasma physics, angular dependence, top: effect, CERN LHC Coll, Top physics, Particle and high energy physics, Hadron-Hadron Scattering , Jet Substructure and Boosted Jets, Top Physics, Mathematical physics, Physical Sciences, numerical calculations: Monte Carlo, top: pair production, 51 Physical Sciences, 5107 Particle and High Energy Physics, Hadron-Hadron Scattering; Jet Substructure and Boosted Jets; Top Physics, p p: scattering, jet substructure and boosted jets, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, momentum dependence, 530, parton: showers, differential cross section: measured, phase space, Nuclear and particle physics. Atomic energy. Radioactivity, 539, Jet Substructure And Boosted Jets, Nuclear, High Energy Physics, High energy physics, quantum chromodynamics: perturbation theory, top: transverse momentum, Hadron-Hadron Scattering, background, Matemática física y química, 500, Molecular, jet: transverse momentum: high, Experimental High Energy Physics, 49 Mathematical Sciences, 5106 Nuclear and Plasma Physics, Jet Substructure and Boosted Jets, p p: colliding beams, top: branching ratio, hadronization, top: boosted particle, experimental results

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