<h1>Hartill, Donald L.</h1>
<h2>Article from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2>
<ul>
<li>Cronin-Hennessy, D. and Gao, K. Y., el al. (2007) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20100112-082432249">Study of dipion transitions among Υ(3S), Υ(2S), and Υ(1S) states</a>; Physical Review D; Vol. 76; No. 7; Art. No. 072001; <a href="https://doi.org/10.1103/PhysRevD.76.072001">10.1103/PhysRevD.76.072001</a></li>
<li>Hartill, D. L. and Barish, B. C., el al. (1969) <a href="https://resolver.caltech.edu/CaltechAUTHORS:HARpr69">Antiproton-proton annihilation into electron-positron pairs and gamma-ray pairs</a>; Physical Review; Vol. 184; No. 5; 1415-1423; <a href="https://doi.org/10.1103/PhysRev.184.1415">10.1103/PhysRev.184.1415</a></li>
<li>Barish, B. and Fong, D., el al. (1966) <a href="https://resolver.caltech.edu/CaltechAUTHORS:BARprl66">pp elastic scattering for incident momenta between 1.0 and 2.50 BeV/c</a>; Physical Review Letters; Vol. 17; No. 13; 720-722; <a href="https://doi.org/10.1103/PhysRevLett.17.720">10.1103/PhysRevLett.17.720</a></li>
</ul>