M_W at Hadron Colliders: Theoretical Considerations

25 May 2022, 13:53
23m

Speaker

Tao Han

Description

In light of the recent CDF result on the MW measurement at the Fermilab Tevatron, I discuss some implications from theoretical considerations. I first summarize the current global fit on the EW parameters from the PDG and observe the clear tension with the CDF MW measurement. I then discuss the transverse kinematical variables at hadron colliders, such as PT(e) and MT(en), from which the MW is extracted at hadron colliders. Unlike the invariant mass variable, those transverse variables have a convoluted relation with MW, and depend on the finite W width and the transverse motion of the W. Finally, taking the face value of the CDF MW result, I briefly comment on the possible new physics needed to accommodate the discrepancy.

Presentation materials