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Precision measurement of the mass difference between light nuclei and anti-nuclei

69Citations signalées, ce qui n’est pas une note de qualité
138Institutions déclarées
35Pays d’affiliation déclarés

Rattachement africain : am, mx, ca, ua, in, ru, us, cn, fr, no, cu, it, es, cz, pk, kr, nl, ch, se, de, ro, pl, hu, sk, fi, jp, dk, gb, Afrique du Sud, tr, gr, hr, pe, th, br. Niveau de preuve : code pays fourni par la source.

Le résumé fourni par la source

The abundant production of (anti-)nuclei in relativistic heavy-ion collisions provides a platform to test the CPT invariance of nucleon–nucleon interactions—offering the highest precision measurement to date in the light-nuclei sector. The measurement of the mass differences for systems bound by the strong force has reached a very high precision with protons and anti-protons1,2. The extension of such measurement from (anti-)baryons to (anti-)nuclei allows one to probe any difference in the interactions between nucleons and anti-nucleons encoded in the (anti-)nuclei masses. This force is a remnant of the underlying strong interaction among quarks and gluons and can be described by effective theories3, but cannot yet be directly derived from quantum chromodynamics. Here we report a measurement of the difference between the ratios of the mass and charge of deuterons (d) and anti-deuterons ( ), and 3He and nuclei carried out with the ALICE (A Large Ion Collider Experiment)4 detector in Pb–Pb collisions at a centre-of-mass energy per nucleon pair of 2.76 TeV. Our direct measurement of the mass-over-charge differences confirms CPT invariance to an unprecedented precision in the sector of light nuclei5,6. This fundamental symmetry of nature, which exchanges particles with anti-particles, implies that all physics laws are the same under the simultaneous reversal of charge(s) (charge conjugation C), reflection of spatial coordinates (parity transformation P) and time inversion (T).

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Le contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Precision measurement of the mass difference between light nuclei and anti-nuclei
Date Crossref
17/08/2015
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 il ne compte pas comme une seconde source scientifique indépendante.

Les institutions déclarées

A. Alikhanyan National LaboratoryBenemérita Universidad Autónoma de PueblaCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalInstitute of Particle PhysicsBogolyubov Institute for Theoretical PhysicsBose InstituteBudker Institute of Nuclear PhysicsCalifornia Polytechnic State UniversityCentral China Normal UniversityCentre National de la Recherche ScientifiqueUniversité Clermont AuvergneLaboratoire de Physique de Clermont AuvergneClermont UniversitéLaboratoire de Physique Subatomique et des Technologies AssociéesInstitut National de Physique Nucléaire et de Physique des ParticulesNantes UniversitéUniversity of BergenCentre de Calcul de l’Institut National de Physique Nucléaire et de Physique des ParticulesCentro de Aplicaciones Tecnológicas y Desarrollo NuclearIstituto Nazionale di Fisica Nucleare, Sezione di TorinoCentro de Investigaciones Energéticas, Medioambientales y TecnológicasUniversidad Nacional Autónoma de MéxicoCzech Technical University in PragueCentro Ricerche Enrico FermiIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of SalernoChicago State UniversityChina Institute of Atomic EnergyCommissariat à l'Énergie Atomique et aux Énergies AlternativesInstitut de Recherche sur les Lois Fondamentales de l'UniversCOMSATS University IslamabadUniversidade de Santiago de CompostelaAligarh Muslim UniversityThe Ohio State UniversitySejong UniversityUniversity of OsloIstituto Nazionale di Fisica Nucleare, Sezione di BariIstituto Nazionale di Fisica Nucleare, Sezione di Roma IIstituto Nazionale di Fisica Nucleare, Sezione di CagliariIstituto Nazionale di Fisica Nucleare, Sezione di PadovaIstituto Nazionale di Fisica Nucleare, Sezione di TriesteUtrecht UniversityEuropean Organization for Nuclear ResearchUniversity of HoustonIstituto Nazionale di Fisica Nucleare, Sezione di CataniaUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro”Lund UniversityOak Ridge National LaboratoryUniversity of TübingenInstitute of Space Science - INFLPR SubsidiaryInstitute of Nuclear Physics, Polish Academy of SciencesUniversité Paris-SudInstitut de PhysiqueHeidelberg UniversityHUN-REN Wigner Research Centre for PhysicsHungarian Academy of SciencesGSI Helmholtz Centre for Heavy Ion ResearchUniversity of MünsterExcellence Cluster UniverseTechnical University of MunichHøgskolen i BergenComenius University BratislavaUniversity of Pavol Jozef ŠafárikVestfold University CollegeGoethe University FrankfurtFrankfurt Institute for Advanced StudiesGangneung–Wonju National UniversityKorea Institute of Science & Technology InformationUniversity of JyväskyläGauhati UniversityHelsinki Institute of PhysicsHiroshima UniversityIndian Institute of Technology BombayIndian Institute of Technology IndoreInha UniversitySaha Institute of Nuclear PhysicsNational Institute for Subatomic PhysicsInstitut Pluridisciplinaire Hubert CurienUniversité de StrasbourgInstitute for Nuclear ResearchWayne State UniversityThe University of Texas at AustinUniversity of CopenhagenInstitute for Theoretical and Experimental PhysicsJoint Institute for Nuclear ResearchSlovak Academy of SciencesInstitute of Experimental Physics of the Slovak Academy of SciencesUniversity of BirminghamCzech Academy of SciencesFZU ‒ Institute of Physics of the Academy of Sciences of the Czech RepublicInstitute of Physics, BhubaneshwarUniversity of Tennessee at KnoxvilleNational Research FoundationKonkuk UniversityYale UniversityPusan National UniversityKTO Karatay UniversityLaboratoire de Physique Subatomique et de CosmologieUniversité Grenoble AlpesIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali di LegnaroLawrence Berkeley National LaboratoryLawrence Livermore National LaboratoryInstitute of Engineering PhysicsNational Research Nuclear University MEPhIKurchatov InstituteNational Centre for Nuclear ResearchNational Institute of Science Education and ResearchPanjab UniversityVariable Energy Cyclotron CentreUniversity of JammuDaresbury LaboratoryCzech Academy of Sciences, Nuclear Physics InstitutePetersburg Nuclear Physics InstituteCreighton UniversityNational and Kapodistrian University of AthensUniversity of Cape TownUniversity of RajasthanPolitecnico di TorinoPurdue University West LafayetteRuđer Bošković InstituteAll-Russian Scientific Research Institute of Technical PhysicsPontificia Universidad Católica del PerúSuranaree University of TechnologyUniversity of SplitUniversidad Autónoma de SinaloaHospital Universitário da Universidade de São PauloUniversidade Estadual de Campinas (UNICAMP)University of LiverpoolUniversity of the WitwatersrandThe University of TokyoUniversity of TsukubaUniversity of ZagrebLyon 1 UniversitéSt Petersburg UniversityWarsaw University of TechnologyYonsei UniversityUniversity of Applied Sciences Worms

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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