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Accès ouvert déclaré 2019 article

Measurement of b hadron fractions in 13 TeV pp collisions

116Citations signalées, ce qui n’est pas une note de qualité
87Institutions déclarées
16Pays d’affiliation déclarés

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Le résumé fourni par la source

The production fractions of ${\overline{B}}_{s}^{0}$ and ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}$ hadrons, normalized to the sum of ${B}^{\ensuremath{-}}$ and ${\overline{B}}^{0}$ fractions, are measured in 13 TeV $pp$ collisions using data collected by the LHCb experiment, corresponding to an integrated luminosity of $1.67\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. These ratios, averaged over the $b$ hadron transverse momenta from 4 to 25 GeV and pseudorapidity from 2 to 5, are $0.122\ifmmode\pm\else\textpm\fi{}0.006$ for ${\overline{B}}_{s}^{0}$, and $0.259\ifmmode\pm\else\textpm\fi{}0.018$ for ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}$, where the uncertainties arise from both statistical and systematic sources. The ${\mathrm{\ensuremath{\Lambda}}}_{b}^{0}$ ratio depends strongly on transverse momentum, while the ${\overline{B}}_{s}^{0}$ ratio shows a mild dependence. Neither ratio shows variations with pseudorapidity. The measurements are made using semileptonic decays to minimize theoretical uncertainties. In addition, the ratio of ${D}^{+}$ to ${D}^{0}$ mesons produced in the sum of ${\overline{B}}^{0}$ and ${B}^{\ensuremath{-}}$ semileptonic decays is determined as $0.359\ifmmode\pm\else\textpm\fi{}0.006\ifmmode\pm\else\textpm\fi{}0.009$, where the uncertainties are statistical and systematic.

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.

Titre Crossref
Measurement of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>b</mml:mi></mml:mrow></mml:math> hadron fractions in 13 TeV <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>p</mml:mi><mml:mi>p</mml:mi></mml:mrow></mml:math> collisions
Date Crossref
27/08/2019
Éditeur
American Physical Society (APS)
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

National Institute for Subatomic PhysicsUniversity of ZurichUniversidade de Santiago de CompostelaUniversity of BristolUniversity of MichiganSyracuse UniversityCentre National de la Recherche ScientifiqueUniversité Clermont AuvergneInstitut National de Physique Nucléaire et de Physique des ParticulesUniversity of CincinnatiIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiTU Dortmund UniversityEuropean Organization for Nuclear ResearchUniversity of GlasgowUniversitat de BarcelonaPetersburg Nuclear Physics InstituteImperial College LondonUniversidade Federal do Rio de JaneiroIstituto Nazionale di Fisica Nucleare, Sezione di PadovaUniversité Paris-SaclayIstituto Nazionale di Fisica Nucleare, Sezione di FirenzeÉcole Polytechnique Fédérale de LausanneIstituto Nazionale di Fisica Nucleare, Sezione di FerraraUniversity of Maryland, College ParkAix-Marseille UniversitéCentre de physique des particules de MarseilleInstitute for High Energy PhysicsYandex School of Data AnalysisIstituto Nazionale di Fisica Nucleare, Sezione di CagliariHeidelberg UniversityUniversity of WarwickUniversity of ManchesterIstituto Nazionale di Fisica Nucleare, Sezione di GenovaNational University of Science and TechnologyInstitute for Theoretical and Experimental PhysicsNational Centre for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di PisaCentro Brasileiro de Pesquisas FísicasUniversity of Chinese Academy of SciencesIstituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaDélégation Paris 7Université Paris CitéSorbonne UniversitéSorbonne Paris CitéLaboratoire de Physique Nucléaire et de Hautes ÉnergiesRWTH Aachen UniversityLomonosov Moscow State UniversityIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of CambridgeInstitute of Nuclear Physics, Polish Academy of SciencesUniversity of BirminghamUniversity of OxfordIstituto Nazionale di Fisica Nucleare, Sezione di Roma IMassachusetts Institute of TechnologySiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsUniversity of LiverpoolWuhan UniversityTsinghua UniversityIstituto Nazionale di Fisica Nucleare, Roma Tor VergataUniversité Savoie Mont BlancUniversité Grenoble AlpesUniversity of EdinburghHoria Hulubei National Institute for R and D in Physics and Nuclear EngineeringLos Alamos National LaboratoryIstituto Nazionale di Fisica Nucleare, Sezione di BariMax Planck Institute for Nuclear PhysicsAGH University of KrakowNational Research University Higher School of EconomicsCentral China Normal UniversityKharkiv Institute of Physics and TechnologyRutherford Appleton LaboratoryInstitute for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di MilanoUniversitat de ValènciaInstituto de Física CorpuscularPontifícia Universidade Católica do Rio de JaneiroUniversity of RostockInstitute for Nuclear ResearchInstitute of High Energy PhysicsKurchatov InstituteSouth China Normal UniversityUniversity College DublinUniversidad Nacional de ColombiaUniversity of GroningenNational Research Tomsk State UniversityTomsk Polytechnic University

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

Particle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions

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