The influence of the scalar unparticle and polarization on the exclusive W boson hadronic decays in the final state at muon colliders in the Randall-Sundrum model
Bui Thi Ha Giang, Dang Van Soa
公開日: 2024/8/19
Abstract
An attempt is made to present the effect of unparticle physics and polarization on the exclusive decays of W boson at high energy colliders in the Randall-Sundrum (RS) model. By using Feynman diagram techniques we have evaluated the influence of the scalar unparticle and polarization on the exclusive W boson hadronic decays of $W^{\pm} \rightarrow \pi^{\pm}\gamma$, $W^{\pm} \rightarrow K^{\pm}\gamma$ and $W^{\pm} \rightarrow \rho^{\pm}\gamma$ at the high energy muon colliders in the RS model. The result shows that with fixed collision energies, the total cross-section for hadronic productions in the final state depends strongly on the parameters of the unparticle physics and muon beam polarizes. With a center-of-mass energy of 10 TeV, the total cross-sections achieve the maximum value when the benchmark background as $(\Lambda_{U}, d_{U})$ $= (1 TeV, 1.9)$ and the polarization coefficient as $(P_{\mu^{-}}, P_{\mu^{+}} )= (1,1)$. The numerical evaluation for the statistical significance is given in detail which indicates that the effect can be detected in the future experiments with moderately high energy colliders.