Wide accents in Times font are not positioned correctly

Question

I use txfonts or newtx packages to typeset in Times font (NimbusRomNo9L). However, wide accents in math mode are too wide or placed incorrectly, such that they touch the next symbol.

\documentclass{article}
\usepackage{txfonts}   
\begin{document}
\[ \widehat{T}^2 \]
\end{document}

Solution:

As answered by "Mico", mtpro2 package has better symbols/typesetting for wide accents. However, its Lite version is incomplete. So I used newtx for text and math; and instead of \widehat,\widetilde,... I used the \what,\wtilde,... symbols form "MathTime" package, as defined below:

%%%% Times font (NimbusRomNo9L) for text and math using Newtx package
\usepackage{newtxtext} %
\usepackage{mathtools,amsthm} % AMS packages
\usepackage{textcomp} % required for special glyphs
\usepackage[varg,varbb,cmintegrals,cmbraces]{newtxmath}
\renewcommand{\rmdefault}{ntxrj} %old-style figures in text

%%%% Define wide accents using symbols from Math Time Pro font
\DeclareFontEncoding{LMP2}{}{}
\DeclareFontSubstitution{LMP2}{mtt}{m}{n}
\DeclareFontFamily{LMP2}{mtt}{\skewchar\font48}
\DeclareFontShape{LMP2}{mtt}{m}{n}{<-7> mt2syf <7-9> mt2sys <9-> mt2syt}{\skewchar\font32} 
\DeclareSymbolFont{mtsymbols}{LMP2}{mtt}{m}{n} 
\DeclareMathAccent{\what}  {\mathord}{mtsymbols}{"79}
\DeclareMathAccent{\wtilde}{\mathord}{mtsymbols}{"7A}
\DeclareMathAccent{\wcheck}{\mathord}{mtsymbols}{"7B}
\DeclareMathAccent{\wbar}  {\mathord}{mtsymbols}{"78}

Answer 1

You may want to give the mtpro2 (MathTime Professional II) package a try, as it provides a good-looking "widehat" accents. It does a similarly good job for "widetilde" accents.

Caveat: The full mtpro2 package isn't free; however, the package's "lite" subset, which is all that's needed for this example, is free of charge.

\documentclass{article}
\usepackage{times}        % text font
\usepackage[lite]{mtpro2} % math font
\begin{document}
$ \hat{T}^2 \quad \widehat{T}^2 $
\end{document}

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Addendum: For the sake of comparison, here's what results from running the preceding MWE with the mathptmx package instead of the mtpro2 package: The superscipt "2" sits a tiny little bit lower -- which may be desirable -- but the "widehat" accent is (to my taste) too dominant.