It is found that the empirical evidence rules out the existence of an anomalous magnetic moment of any significance for the μ-meson.doi:10.1016/0029-5582(56)90064-5G.N. FowlerElsevier B.V.Nuclear PhysicsG. N. Fowler : Nuclear Phys. , 1 , 125 (1956). ADS...
We investigate the impact of incorporating vector-like leptons into the Standard Model, aiming to address longstanding puzzles related to the anomalous mag
摘要: Within the framework of Dyson-Schwinger(DS)approach,we calculate the anomalous magnetic moment for the quarks.The results show that there must be a measurable anomalous magnetic moment for the quarks in the case of spontaneous chiral symmetry breaking....
the muon's anomalous magnetic moment a_{\\mu}, byconsidering single meson contributions beyond the leading pseudo-scalar mesons.We incorporate available experimental input as well as constraints fromlight-by-light scattering sum rules to estimate the effects of axial-vector,scalar, and tensor mesons...
comprehensive study of the vector leptoquark with U(1)B3-L2 on the B-meson and muon g 2 anomalies Recently reported anomalies in various B -meson decays and also in the anomalous magnetic moment of muon (g 2)μ motivate us to consider a particular exte... K Ban,Y Jho,Y Kwon,... ...
]. Due to the existence of the constant vector b µ , the form factors F i do not depend only on the the Lorentz invariant l 2 . Note that in Eq. (5) we have made use of the following Gordon identities, ¯ u(q)γ µ u(p) = 1 2m ¯ u(q) [(p +q) µ +iσ ...
For the other choice of Λ the results can be rescaled by (mtΛ)2. e, et are the electric charge of the electron and the top quark, respectively. σμν is defined as (γμγν−γνγμ)/2 with γμ the Dirac matrices. qν is the photon 4-vector momentum. κtuγ and κ...
Effects of different Form-factors in Meson-Photon-Photon Transitions and the Muon Anomalous Magnetic Moment The exact form of the form-factor associated with a meson-photon-photonvertex is not known. Different suggestions exist, based on constraints from QCDand on recent experiments. Four different ...
C (2022) 82:229 https://doi.org/10.1140/epjc/s10052-022-10148-9 Regular Article - Theoretical Physics Two-loop prediction of the anomalous magnetic moment of the muon in the Two-Higgs Doublet Model with GM2Calc 2 Peter Athron1,2 , Csaba Balazs2 , Adriano Cherchiglia3 , Douglas Jacob...
In particular, we show that for the $\gamma^* ightarrow 3 \pi$ decay, the usual relation $\mathcal{A}^{VMD}_{\gamma3\pi}=(3/2)\mathcal{A}^{WZW}_{\gamma3\pi}$, encodes all the vector contributions and not only the $ho$ meson one. In addition, we find that there is an...