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.

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 | SummarXiv | SummarXiv