Search for Lepton-Flavor-Violating τ Decays to a Lepton and an Invisible Boson at Belle II
dc.contributor.author | Adachi, I. | en |
dc.contributor.author | Adamczyk, K. | en |
dc.contributor.author | Aggarwal, L. | en |
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dc.contributor.author | Aihara, H. | en |
dc.contributor.author | Akopov, N. | en |
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dc.contributor.author | Ky, N. Anh | en |
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dc.contributor.author | Chang, M. -C. | en |
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dc.date.accessioned | 2023-12-08T18:14:56Z | en |
dc.date.available | 2023-12-08T18:14:56Z | en |
dc.date.issued | 2023-05-02 | en |
dc.date.issued | 2023-05-02 | en |
dc.description.abstract | We search for lepton-flavor-violating τ-→e-α and τ-→μ-α decays, where α is an invisible spin-0 boson. The search uses electron-positron collisions at 10.58 GeV center-of-mass energy with an integrated luminosity of 62.8 fb-1, produced by the SuperKEKB collider and collected with the Belle II detector. We search for an excess in the lepton-energy spectrum of the known τ-→e-ν¯eντ and τ-→μ-ν¯μντ decays. We report 95% confidence-level upper limits on the branching-fraction ratio B(τ-→e-α)/B(τ-→e-ν¯eντ) in the range (1.1-9.7)×10-3 and on B(τ-→μ-α)/B(τ-→μ-ν¯μντ) in the range (0.7-12.2)×10-3 for α masses between 0 and 1.6 GeV/c2. These results provide the most stringent bounds on invisible boson production from τ decays. | en |
dc.description.version | Published version | en |
dc.format.extent | 7 page(s) | en |
dc.format.medium | en | |
dc.format.mimetype | application/pdf | en |
dc.identifier | ARTN 181803 (Article number) | en |
dc.identifier.doi | https://doi.org/10.1103/PhysRevLett.130.181803 | en |
dc.identifier.eissn | 1079-7114 | en |
dc.identifier.issn | 0031-9007 | en |
dc.identifier.issue | 18 | en |
dc.identifier.orcid | Piilonen, Leo [0000-0001-6836-0748] | en |
dc.identifier.pmid | 37204890 | en |
dc.identifier.uri | https://hdl.handle.net/10919/117131 | en |
dc.identifier.volume | 130 | en |
dc.language.iso | en | en |
dc.publisher | American Physical Society | en |
dc.relation.uri | https://www.ncbi.nlm.nih.gov/pubmed/37204890 | en |
dc.relation.uri | http://dx.doi.org/10.1103/physrevlett.130.181803 | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | Science & Technology | en |
dc.subject | Physical Sciences | en |
dc.subject | Physics, Multidisciplinary | en |
dc.subject | Physics | en |
dc.subject | LOWEST-ORDER CALCULATIONS | en |
dc.subject | RADIATIVE-CORRECTIONS | en |
dc.subject | MONTE-CARLO | en |
dc.subject | FINAL-STATES | en |
dc.subject | SIMULATION | en |
dc.subject | Belle II Collaboration | en |
dc.subject | 5106 Nuclear and Plasma Physics | en |
dc.subject | 5107 Particle and High Energy Physics | en |
dc.subject | 51 Physical Sciences | en |
dc.subject | 40 Engineering | en |
dc.subject | 49 Mathematical sciences | en |
dc.title | Search for Lepton-Flavor-Violating τ Decays to a Lepton and an Invisible Boson at Belle II | en |
dc.title.serial | Physical Review Letters | en |
dc.type | Article - Refereed | en |
dc.type.dcmitype | Text | en |
dc.type.other | Article | en |
dc.type.other | Journal | en |
dcterms.dateAccepted | 2023-02-23 | en |
pubs.organisational-group | /Virginia Tech | en |
pubs.organisational-group | /Virginia Tech/Science | en |
pubs.organisational-group | /Virginia Tech/Science/Physics | en |
pubs.organisational-group | /Virginia Tech/All T&R Faculty | en |
pubs.organisational-group | /Virginia Tech/Science/COS T&R Faculty | en |