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Observation and Properties of L = 1 B(1) and B*(2) Mesons.

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F07%3A04144324" target="_blank" >RIV/68407700:21340/07:04144324 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Observation and Properties of L = 1 B(1) and B*(2) Mesons.

  • Original language description

    Excited B mesons B_1 and B_2* are observed directly for the first time as two separate states in fully reconstructed decays to B+(*) pi-. The mass of B_1 is measured to be (5720.6 +- 2.4 +- 1.4) MeV/c^2 and the mass difference DeltaM between B_2* and B_1is (26.2 +- 3.1 +- 0.9) MeV/c^2. The production rate for B_1 and B_2* mesons is determined to be a fraction (13.9 +- 1.9 +- 3.2)% of the production rate of the B+ meson.

  • Czech name

    Pozorování a vlastnosti L = 1 B(1) a B*(2) Mezonů.

  • Czech description

    První přímé pozorování B mezonů B_1 a B_2* jako samostatných stavů z rekonstrukce rozpadu B+(*) pi-. Byla změřena hmota B_1 5720.6 +/- 2.4 +/-1.4 MeV/c^2 a rozdíl mezi B_1 a B_2* 26.2 +/- 3.1 +/- 0.9 MeV/c^2. Produkce B_1 a B_2* byla určena jako poměr (13.9 +/- 1.9 +/- 3.2)% produkce B+ mezonu.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BF - Elementary particle theory and high energy physics

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2007

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physical Review Letters

  • ISSN

    0031-9007

  • e-ISSN

  • Volume of the periodical

    99

  • Issue of the periodical within the volume

    17

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    7

  • Pages from-to

    172001-172008

  • UT code for WoS article

  • EID of the result in the Scopus database