| Title: | Search for ▫$Z^\prime \to \mu^+ \mu^-$▫ in the ▫$L_\mu - L_\tau$▫ gauge-symmetric model at Belle |
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| Authors: | ID Czank, T. (Author)
ID Adamczyk, Karol (Author)
ID Biswal, Jyoti Prakash (Author)
ID Bračko, Marko (Author)
ID Golob, Boštjan (Author)
ID Korpar, Samo (Author)
ID Križan, Peter (Author)
ID Mrvar, Manca (Author)
ID Pestotnik, Rok (Author)
ID Podobnik, Tomaž (Author)
ID Stanič, Samo (Author)
ID Starič, Marko (Author)
ID Šantelj, Luka (Author) |
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| Files: |  Search_for_Z__-__mu(+)mu(-)_in_the-Czank-2022.pdf (725,14 KB)
MD5: CB77FE16A79EC6462C120C8E46EE0836
 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.106.012003
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
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| Abstract: | We search for a new gauge boson Z′ that couples only to heavy leptons and their corresponding neutrinos in the process e+e−→Z′(→μ+μ−)μ+μ−, using a 643 fb−1 data sample collected by the Belle experiment at or near the Υ(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/c2, 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. |
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| Keywords: | Extensions of gauge sector, leptonic, semileptonic & radiative decays |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 20.09.2021 |
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| Article acceptance date: | 28.06.2022 |
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| Publication date: | 08.07.2022 |
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| Publisher: | APS |
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| Year of publishing: | 2022 |
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| Number of pages: | str. 012003-1-012003-10 |
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| Numbering: | Letn. 106, Št. 1 |
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| PID: | 20.500.12556/DKUM-85995  |
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| UDC: | 539.1 |
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| ISSN on article: | 2470-0010 |
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| COBISS.SI-ID: | 142209539 |
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| DOI: | 10.1103/PhysRevD.106.012003 |
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| Publication date in DKUM: | 25.09.2023 |
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| Views: | 634 |
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| Downloads: | 49 |
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| Metadata: |    |
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| Categories: | Misc.
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