Search for Z' -> mu(+)mu(-) in the L-mu - L-tau gauge-symmetric model at Belle

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10454504" target="_blank" >RIV/00216208:11320/22:10454504 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=o6BEJK5V.p" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=o6BEJK5V.p</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.106.012003" target="_blank" >10.1103/PhysRevD.106.012003</a>

Result language
angličtina
Original language name
Search for Z' -> mu(+)mu(-) in the L-mu - L-tau gauge-symmetric model at Belle
Original language description
We search for a new gauge boson Z' that couples only to heavy leptons and their corresponding neutrinos in the process e(+)e(-) -> Z'(-> mu(+)mu(-))mu(+)mu(-), using a 643 fb(-1) data sample collected by the Belle experiment at or near the gamma(1S; 2S; 3S; 4S; 5S) resonances at the KEKB collider. While previous searches for Z' performed a data-based estimation of the initial state radiation effect, our search for the Z' is the first to include effects due to initial state radiation in the signal simulated samples that were used in estimating the detection efficiency. No signal is observed in the Z' mass range of 0.212-10 GeV/c(2), and we set an upper limit on the coupling strength, g', constraining the possible Z' contribution to the anomalous magnetic dipole moment of the muon.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences

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)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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