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Accès ouvert déclaré 2025 article

Observation of the singly Cabibbo-suppressed decay Λc+→pπ0

3Citations signalées, ce qui n’est pas une note de qualité
91Institutions déclarées
17Pays d’affiliation déclarés

Rattachement africain : cn, ru, se, de, it, pl, mn, us, tr, kr, gb, th, pk, cl, nl, in, cy. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

Utilizing 4.5 fb−1 of e+e− annihilation data collected with the BESIII detector at the BEPCII collider at center-of-mass energies between 4.600 and 4.699 GeV, the first observation of the singly Cabibbo-suppressed decay Λc+→pπ0 is presented, with a statistical significance of 5.4σ . The ratio of the branching fractions of Λc+→pπ0 and Λc+→pη is measured as B(Λc+→pπ0)/B(Λc+→pη)=(0.120±0.026stat±0.007syst) . This result resolves the longstanding discrepancy between earlier experimental searches, providing both a decisive conclusion and valuable input for QCD-inspired theoretical models. A sophisticated deep learning approach using a Transformer-based architecture is employed to distinguish the signal from the prevalent hadronic backgrounds, complemented by thorough validation and systematic uncertainty quantification.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Le contrôle bibliographique ouvert

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

Titre Crossref
Observation of the singly Cabibbo-suppressed decay <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi mathvariant="normal">Λ</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup><mml:mo stretchy="false">→</mml:mo><mml:mi>p</mml:mi><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math>
Date Crossref
14/03/2025
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

Institute of High Energy PhysicsSiberian Branch of the Russian Academy of SciencesBudker Institute of Nuclear PhysicsUppsala UniversityRuhr University BochumZhengzhou UniversityJohannes Gutenberg University MainzUniversity of TurinUniversity of Science and Technology of ChinaSoutheast UniversityJoint Institute for Nuclear ResearchIstituto Nazionale di Fisica Nucleare, Sezione di FerraraPeking UniversityUniversity of Chinese Academy of SciencesNational Centre for Nuclear ResearchInstitute of Physics and TechnologyIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiCarnegie Mellon UniversityUniversity of MünsterWuhan UniversityIstinye UniversityNankai UniversityChina University of GeosciencesSoochow UniversityHenan UniversityNorth China Electric Power UniversityNanjing UniversityTsinghua UniversityInstitute of Modern PhysicsJilin UniversityJilin Medical UniversityHunan UniversityChung-Ang UniversityShandong UniversityYunnan UniversityHelmholtz Institute MainzUniversity of South ChinaUniversity of JinanLiaoning UniversityUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Piedmont UniversitySun Yat-sen UniversityNanjing Normal UniversityUniversity of FerraraHenan Normal UniversityUniversity of ManchesterUniversity of OxfordGSI Helmholtz Centre for Heavy Ion ResearchGuangxi UniversityShandong Normal UniversityFudan UniversityIndiana University BloomingtonIndiana UniversityUniversity of Hawaiʻi at MānoaUniversity of Hawaii SystemSuranaree University of TechnologySouth China Normal UniversityUniversity of the PunjabLiaoning Normal UniversityHangzhou Normal UniversityHuangshan UniversityUniversity of TarapacáUniversity of GroningenIndian Institute of Technology MadrasJustus-Liebig-Universität GießenQufu Normal UniversityRenmin University of ChinaLanzhou UniversityHebei UniversitySichuan UniversityGuangxi Normal UniversityShanxi UniversityCentral China Normal UniversityShanxi University of Traditional Chinese MedicineHenan University of Science and TechnologyHenan University of TechnologyCentral South UniversityZhejiang UniversityCOMSATS University IslamabadUniversity of PerugiaIstituto Nazionale di Fisica Nucleare, Sezione di PerugiaHunan Normal UniversityChina Center of Advanced Science and TechnologyShanghai Jiao Tong UniversityNear East UniversityBeihang UniversityInner Mongolia UniversityYantai UniversityUniversity of BristolShanxi Normal UniversityUniversity of Science and Technology Liaoning

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

Les sujets associés

Particle physics theoretical and experimental studiesQuantum Chromodynamics and Particle InteractionsHigh-Energy Particle Collisions Research

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