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135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aConstraints on New Physics in Electron g−2 from a Search for Invisible Decays of a Scalar, Pseudoscalar, Vector, and Axial Vector
_fYu. M. Andreev, D. Banerjee, S. V. Donskov [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 70 tit.]
330 _aWe performed a search for a new generic X boson, which could be a scalar (S), pseudoscalar (P), vector (V), or an axial vector (A) particle produced in the 100 GeV electron scattering off nuclei, e−Z→e−ZX, followed by its invisible decay in the NA64 experiment at CERN. No evidence for such a process was found in the full NA64 dataset of 2.84×1011 electrons on target. We place new bounds on the S, P, V, A coupling strengths to electrons, and set constraints on their contributions to the electron anomalous magnetic moment ae, |ΔaX|≲10−15-10−13 for the X mass region 1  MeV≲mX≲1  GeV. These results are an order of magnitude more sensitive compared to the current accuracy on ae from the electron g−2 experiments and recent high-precision determination of the fine structure constant.
461 _tPhysical Review Letters
463 _tVol. 126, iss. 21
_v[211802, 6 p.]
_d2021
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
701 1 _aAndreev
_bYu. M.
_gYury Mikhaylovich
701 1 _aBanerjee
_bD.
701 1 _aDonskov
_bS. V.
_gSergey Vasiljevich
701 1 _aChumakov
_bA. G.
_cphysicist
_claboratory assistant-researcher of Tomsk Polytechnic University
_f1992-
_gAleksandr Grigorjevich
_2stltpush
_3(RuTPU)RU\TPU\pers\41079
701 1 _aDusaev
_bR. R.
_cspecialist in the field of nuclear physics
_cEngineer of Tomsk Polytechnic University
_f1988-
_gRenat Ramilyevich
_2stltpush
_3(RuTPU)RU\TPU\pers\30972
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 _aTrifonov
_bA. Yu.
_cphysicist, mathematician
_cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences
_f1963-
_gAndrey Yurievich
_2stltpush
_3(RuTPU)RU\TPU\pers\30754
701 1 _aVasilishin
_bB. I.
_cengineer-physicist
_claboratory researcher at Tomsk Polytechnic University
_f1990-
_gBogdan Ivanovich
_2stltpush
_3(RuTPU)RU\TPU\pers\37572
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
_h8118
_2stltpush
_3(RuTPU)RU\TPU\col\23551
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bШкола базовой инженерной подготовки
_bОтделение математики и информатики
_h8031
_2stltpush
_3(RuTPU)RU\TPU\col\23555
801 2 _aRU
_b63413507
_c20220603
_gRCR
856 4 _uhttps://doi.org/10.1103/PhysRevLett.126.211802
942 _cCF