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Measurement of two-photon decay width of xc2(1P) in ??? xc2(1P) ? J/fi at Belle

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476481" target="_blank" >RIV/00216208:11320/23:10476481 - isvavai.cz</a>

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Nf-4Q-oYmE" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Nf-4Q-oYmE</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/JHEP01(2023)160" target="_blank" >10.1007/JHEP01(2023)160</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurement of two-photon decay width of xc2(1P) in ??? xc2(1P) ? J/fi at Belle

  • Original language description

    We report the measurement of the two-photon decay width of chi c2(1P) in two-photon processes at the Belle experiment. We analyze the process gamma gamma -&gt;chi c2(1P)-&gt; J/psi gamma, J/psi -&gt; l(+)l(-) (l=e or mu) using a data sample of 971 fb(-1) collected with the Belle detector at the KEKB e(+)e(-) collider. In this analysis, the product of the two-photon decay width of chi c2(1P) and the branching fraction is determined to be gamma gamma gamma(chi c2(1P))B(chi c2(1P)-&gt; J/psi gamma)B(J/psi -&gt; l(+)l(-))=14.8 +/- 0.3(stat.) +/- 0.7(syst.) eV, which corresponds to gamma gamma gamma(chi c2(1P)) = 653 +/- 13(stat.) +/- 31(syst.) +/- 17(B.R.) eV, where the third uncertainty is from B(chi c2(1P)-&gt; J/psi gamma) and B(J/psi -&gt; l(+)l(-)).

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10300 - Physical sciences

Result continuities

  • Project

    <a href="/en/project/GA22-18469S" target="_blank" >GA22-18469S: Studies of the Beyond Standard Model phenomena in the flavor sector with the Belle II Experiment</a><br>

  • Continuities

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

Others

  • Publication year

    2023

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of High Energy Physics

  • ISSN

    1029-8479

  • e-ISSN

    1029-8479

  • Volume of the periodical

    2023

  • Issue of the periodical within the volume

    01

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    20

  • Pages from-to

    160

  • UT code for WoS article

    000940301200002

  • EID of the result in the Scopus database

    2-s2.0-85147260654