lhc是质子质子对撞，产生w boson需要sea quark；tevatron是质子反质子对撞，两边都是valence quark就够了...
Wbosons mediate the weak interaction, one of the fundamental forces in physics. Because the Standard Model (SM) of particle physics places tight constraints on the mass of theWboson, measuring the mass puts the SM to the test. The Collider Detector at Fermilab (CDF) Collaboration now reports ...
Inspired by the astonishing 7 σ discrepancy between the recent CDF-II measurement and the standard model prediction on the mass of W-boson, we investigate the λ′ -corrections to the vertex of μ→νμ e ν e decay in the context of the R-parity violating ...
It is interesting to note that there is another EW high-precision observable that shows a (slight) discrepancy between the experimental result and the SM prediction, namely the mass of the W boson, MW. The experimental world average is [45] [Math Processing Error]MWexp=80.379±0.012GeV , (...
The recent precision measurement of the W-boson mass reveals an exciting hint for the new physics as of the 3-3-1 model. We indicate that the 3-3-1 model contains distinct sources by itself that may cause the W-mass deviation, as measured, such as the tree-level Z- mixing, the tree...
Therefore, we conclude that the contribution to the W boson mass is limited in the singlet extensions and cannot explain the large discrepancy between the CDF II result and the SM prediction, while it can partially relax the mild tension between the other experiments and the SM prediction. ...
W boson: Is the new measurement for the subatomic particle's mass the first chink in the armour of the Standard Model? Data from an old experiment hints at answers to some of the biggest questions in physics. Indulge in your passions! Get 6 issues o...
论文刚刚发表在了Science上，链接： High-precision measurement of the W boson mass with th…其实...
摘要原文 We study the implications of the recent anomalies in the $W$-boson mass andthe anomalous magnetic moment of the muon on $U(1)_{L_\mu-L_\tau}$ model. Weshow that the introduction of vector-like fermions which mix with muon cansolve both anomalies. ...
A Monte Carlo study of the polar and azimuthal angular distributions of the lepton pair arising from the decay of a $W$ or $Z$ boson produced at high trans... E Mirkes,J Ohnemus - 《Physical Review D Particles & Fields》 被引量: 128发表: 1994年 Phenomenology of bivariate approximants:...