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Accès ouvert déclaré 2023 article

Measurement of e+e− → ωπ+π− cross section at $$ \sqrt{s} $$ = 2.000 to 3.080 GeV

6Citations signalées — pas une note de qualité
80Institutions déclarées
15Pays d’affiliation déclarés

Résumé fourni par la source

Abstract A partial wave analysis on the processe+e−→ωπ+π−is performed using 647 pb−1of data sample collected by using the BESIII detector operating at the BEPCII storage ring at center-of-mass (c.m.) energies from 2.000 GeV to 3.080 GeV. The Born cross section of thee+e−→ωπ+π−process is measured, with precision improved by a factor of 3 compared to that of previous studies. A structure near 2.25 GeV is observed in the energy-dependent cross sections ofe+e−→ωπ+π−andωπ0π0with a statistical significance of 7.6σ, and its determined mass and width are 2232 ± 19 ± 27 MeV/c2and 93 ± 53 ± 20 MeV, respectively, where the first and second uncertainties are statistical and systematic, respectively. By analyzing the cross sections of subprocessese+e−→ωf0(500),ωf0(980),ωf0(1370),ωf2(1270), andb1(1235)π, a structure, with mass M = 2200 ± 11 ± 17 MeV/c2and width Γ = 74 ± 20 ± 24 MeV, is observed with a combined statistical significance of 7.9σ. The measured resonance parameters will help to reveal the nature of vector states around 2.25 GeV.

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Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Measurement of e+e− → ωπ+π− cross section at $$ \sqrt{s} $$ = 2.000 to 3.080 GeV
Date Crossref
20/01/2023
Éditeur
Springer Science and Business Media LLC
Type
journal-article

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

Institutions déclarées

Institute of High Energy PhysicsSiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsUppsala UniversityJohannes Gutenberg University MainzHelmholtz Institute MainzRuhr University BochumUniversity of TurinLiaoning Normal UniversityUniversity of JinanSoutheast UniversityJoint Institute for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIstituto Nazionale di Fisica Nucleare, Sezione di FerraraPeking UniversityMongolian Academy of SciencesInstitute of Physics and TechnologyUniversity of MünsterCarnegie Mellon UniversityWuhan UniversityIstinye UniversityNanjing UniversityInstitute of Modern PhysicsHunan UniversityShandong UniversityYunnan UniversityLiaoning UniversityZhengzhou UniversityUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Sun Yat-sen UniversityUniversity of OxfordUniversity of ManchesterGSI Helmholtz Centre for Heavy Ion ResearchIndiana University BloomingtonNanjing Normal UniversityShandong Normal UniversityFudan UniversityHenan Normal UniversityUniversity of Hawaiʻi at MānoaUniversity of Hawaii SystemSoochow UniversitySuranaree University of TechnologyUniversity of Chinese Academy of SciencesSouth China Normal UniversityUniversity of South ChinaUniversity of the PunjabHuangshan UniversityUniversity of GroningenJustus-Liebig-Universität GießenNational Centre for Nuclear ResearchIndian Institute of Technology MadrasCentral China Normal UniversityHenan University of TechnologyBeijing Institute of Petrochemical TechnologyLanzhou UniversityTsinghua UniversityJilin UniversitySichuan UniversityGuangxi Normal UniversityShanxi UniversityHenan University of Science and TechnologyNankai UniversityZhejiang UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaUniversity of MinnesotaCOMSATS University IslamabadUniversity of PerugiaUniversity of Science and Technology of ChinaUniversity of FerraraHunan Normal UniversityShanxi Normal UniversityNear East UniversityNorth China Electric Power UniversityHangzhou Normal UniversityUniversity of Science and Technology LiaoningShanghai Jiao Tong UniversityChina Center of Advanced Science and TechnologyBeihang UniversityXinyang Normal UniversityMoscow Institute of Physics and Technology

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

Sujets associés

Quantum Chromodynamics and Particle InteractionsParticle physics theoretical and experimental studiesHigh-Energy Particle Collisions Research

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