Speaker
Description
Precise theoretical predictions for electroweak processes are essential for fully exploiting the physics potential of current and future collider experiments. Next-to-leading order electroweak radiative corrections to the decay
W^+(\uparrow) -> c \bar b of a polarised W boson into a pair of heavy quarks are analysed. The analysis is carried out through the angular distribution of the decay products, with finite fermion masses consistently taken into account throughout the calculation. The nonvanishing masses of the final-state quarks are incorporated and compared with the limit of vanishing quark masses, known as the collinear limit. This comparison highlights the importance of mass effects, which lead to observable deviations from the collinear approximation. These effects provide insight into possible deviations between theoretical predictions and experimental measurements of the total decay rate and branching ratios into massive fermions.
| Theoretical or experimental | Theoretical |
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