@misc{10481/77380,
year = {2022},
month = {8},
url = {https://hdl.handle.net/10481/77380},
abstract = {Several observables sensitive to the fragmentation of b quarks into b hadrons are measured using 36  fb−1 of √s=13  TeV proton-proton collision data collected with the ATLAS detector at the LHC. Jets containing b hadrons are obtained from a sample of dileptonic t¯t events, and the associated set of charged-particle tracks is separated into those from the primary pp interaction vertex and those from the displaced b-decay secondary vertex. This division is used to construct observables that characterize the longitudinal and transverse momentum distributions of the b hadron within the jet. The measurements have been corrected for detector effects and provide a test of heavy-quark-fragmentation modeling at the LHC in a system where the top-quark decay products are color connected to the proton beam remnants. The unfolded distributions are compared with the predictions of several modern Monte Carlo parton-shower generators and generator tunes, and a wide range of agreement with the data is observed, with p values varying from 5×10−4 to 0.98. These measurements complement similar measurements from e+e− collider experiments in which the b quarks originate from a color singlet Z/γ∗},
organization = {CEA-DRF},
organization = {Cantons of Bern and Geneva},
organization = {DNSRC
	IN2P3-CNRS},
organization = {EU-ESF},
organization = {GIF, Israel},
organization = {GenT Programmes Generalitat Valenciana, Spain},
organization = {IRFU},
organization = {La Caixa Banking Foundation},
organization = {MES of Russia},
organization = {MIZŠ},
organization = {Norwegian Financial Mechanism
	2014-2021},
organization = {PROMETEO},
organization = {RGC},
organization = {Wallenberg Foundation},
organization = {National Science Foundation},
organization = {U.S. Department of Energy},
organization = {Alexander von Humboldt-Stiftung},
organization = {Canarie},
organization = {H2020 Marie Skłodowska-Curie Actions},
organization = {Multiple Sclerosis Scientific Research Foundation},
organization = {CERN},
organization = {Compute Canada},
organization = {Göran Gustafssons Stiftelser},
organization = {Azərbaycan Milli Elmlər Akademiyası},
organization = {Natural Sciences and Engineering Research Council of Canada},
organization = {National Research Council Canada},
organization = {Canada Foundation for Innovation},
organization = {Science and Technology Facilities Council},
organization = {Leverhulme Trust},
organization = {European Research Council},
organization = {European Cooperation in Science and Technology},
organization = {Australian Research Council},
organization = {National Stroke Foundation},
organization = {Neurosurgical Research Foundation},
organization = {Helmholtz-Gemeinschaft},
organization = {Deutsche Forschungsgemeinschaft},
organization = {Agence Nationale de la Recherche},
organization = {Japan Society for the Promotion of Science},
organization = {Ministry of Education, Culture, Sports, Science and Technology},
organization = {Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung},
organization = {Danmarks Grundforskningsfond},
organization = {Fundação de Amparo à Pesquisa do Estado de São Paulo},
organization = {National Natural Science Foundation of China},
organization = {Ministerstvo Školství, Mládeže a Tělovýchovy},
organization = {Fundação para a Ciência e a Tecnologia},
organization = {Bundesministerium für Bildung und Forschung},
organization = {Chinese Academy of Sciences},
organization = {Austrian Science Fund},
organization = {Generalitat de Catalunya},
organization = {Agencia Nacional de Promoción Científica y Tecnológica},
organization = {Nederlandse Organisatie voor Wetenschappelijk Onderzoek},
organization = {Bundesministerium für Wissenschaft, Forschung und Wirtschaft},
organization = {Conselho Nacional de Desenvolvimento Científico e Tecnológico},
organization = {Joint Institute for Nuclear Research},
organization = {Nella and Leon Benoziyo Center for Neurological Diseases, Weizmann Institute of Science},
organization = {Israel Science Foundation},
organization = {Instituto Nazionale di Fisica Nucleare},
organization = {Narodowe Centrum Nauki},
organization = {Javna Agencija za Raziskovalno Dejavnost RS},
organization = {Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja},
organization = {Ministry of Science and Technology, Taiwan},
organization = {Ministerio de Ciencia e Innovación},
organization = {Centre National pour la Recherche Scientifique et Technique},
organization = {Staatssekretariat für Bildung, Forschung und Innovation},
organization = {Horizon 2020},
organization = {British Columbia Knowledge Development Fund},
organization = {European Regional Development Fund},
organization = {Defence Science Institute},
organization = {Council on grants of the President of the Russian Federation},
organization = {National Research Center "Kurchatov Institute"},
organization = {Narodowa Agencja Wymiany Akademickiej},
organization = {Agencia Nacional de Investigación y Desarrollo},
organization = {Royal Society of South Australia},
publisher = {American Physical Society},
title = {Measurements of jet observables sensitive to b-quark fragmentation in t¯t events at the LHC with the ATLAS detector},
doi = {10.1103/PhysRevD.106.032008},
author = {Aad, G. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration},
}