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It is discussed from theoretical viewpoint why the aspects of enhancements inthe A-coefficient in the resistivity\cite{Knafo}and the Sommerfeld constant\gamma \cite{AtsushiMiyake,Imajo} observed in UTe2 around the metamagnetictransition at H=H_m are so different. In particular, the discussions arefocused on the reason why the H dependence of the A-coefficient reported inRef.\citen{Knafo} and \gamma reported in Ref.\citen{AtsushiMiyake}is almostsymmetric around H=H_{\rm m}, while \gamma(H) at H\gsim H_m, reported inRef.\citen{Imajo}, is considerably suppressed compared to that at H\lsim H_m. Akey point to solve this seeming paradox is to take properly into account thedifference in time scales of probes used in those measurements of pulsedmagnetic field method with different time scales. Another crucial effect is thetime dependent non-uniform magnetic fluctuations remaining in a certain periodof time after the first-order metamagnetic transition has occurred. Indeed, thetime scales of former measurements in Refs.\citen{Knafo,AtsushiMiyake} are farshorter than that of the latter one in Ref.\citen{Imajo}, which can solve theabove paradox.

On Pulsed Magnetic Field Measurements of Enhanced Sommerfeld Constant \gamma and A-Coefficient around Metamagnetic Transition in UTe2