# Studies of e+e− Collisions with a Hard Initial‐State Photon at BaBar

@article{Berger2005StudiesOE,
title={Studies of e+e− Collisions with a Hard Initial‐State Photon at BaBar},
author={N. Berger},
journal={arXiv: High Energy Physics - Experiment},
year={2005},
volume={814},
pages={523-527}
}
• N. Berger
• Published 2005
• Physics
• arXiv: High Energy Physics - Experiment
We present preliminary BaBar measurements of hadronic cross sections in e+e- annihilation using the radiative return technique. The cross sections for e+e- {yields} pp-bar, 3({pi}+{pi}-), 2({pi}+{pi}-)2{pi}0, and K+K-2({pi}+{pi}-) are measured. Measurements of the proton form factor and of the ratio GE/GM are also shown.
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