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035 _a(RuTPU)RU\TPU\network\30675
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090 _a660712
100 _a20191014a2019 k y0engy50 ba
101 0 _aeng
102 _aUS
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aBounds on lepton flavor violating physics and decays of neutral mesons from τ(μ)→3ℓ, ℓγγ-decays
_fC. O. Dib [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 32 tit.]
330 _aWe study two- and three-body lepton flavor violating (LFV) decays involving leptons and neutral vector bosons V=ρ0, ω, ϕ, J/ψ, Υ, Z0, as well as pseudoscalar P=π0, η, η′, ηc and scalar S=f0(500), f0(980), a0(980), χc0(1P) mesons, without referring to a specific mechanism of LFV realization. In particular, we relate the rates of the three-body LFV decays τ(μ)→3ℓ, where ℓ=μ or e, to the two-body LFV decays (V,P)→τμ(τe,μe), where V and P play the role of intermediate resonances in the decay process τ(μ)→3ℓ. From the experimental upper bounds for the branching ratios of τ(μ)→3ℓ decays, we derive upper limits for the branching ratios of (V,P)→τμ(τe,μe). We compare our results to the available experimental data and known theoretical upper limits from previous studies of LFV processes and find that some of our limits are several orders of magnitude more stringent. Using the idea of quark-hadron duality, we extract limits on various quark-lepton dimension-six LFV operators from data on lepton decays. Some of these limits are either new or stronger than those existing in the literature.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tPhysical Review D
_ocovering particles, fields, gravitation, and cosmology
463 _tVol. 99, iss. 3
_v[035020, 12 p.]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aмезоны
610 1 _aраспады
610 1 _aлептонные распады
701 1 _aDib
_bC. O.
_gClaudio
701 1 _aGutsche
_bT.
_gThomas
701 1 _aKovalenko
_bS. G.
_gSergey Grigorjevich
701 1 _aLyubovitskiy (Lyubovitskij)
_bV. E.
_cphysicist
_cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany)
_f1963-
_gValery Efimovich
_2stltpush
_3(RuTPU)RU\TPU\pers\33385
701 1 _aSchmidt
_bI. A.
_gIvan
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
_h8118
_2stltpush
_3(RuTPU)RU\TPU\col\23551
801 2 _aRU
_b63413507
_c20191014
_gRCR
856 4 _uhttps://doi.org/10.1103/PhysRevD.99.035020
942 _cCF