Energy dependence of e+e- → 6π and ![\boldsymbol{e^+e^- \to N\bar{N}}](/img/latex/de/de300538f58cc3cedcac447c40289a14-v2.png) cross sections near the ![\boldsymbol{N\bar{N}}](/img/latex/f5/f5487b50b02e048b3744f1769108d5bb-v2.png) threshold
A. E. Obrazovsky+, S. I. Serednyakov+*
+Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia *Novosibirsk State University, 630090 Novosibirsk, Russia
Abstract
Using recent BABAR, CMD-3 and SND data, the sum of
e+e- → 3(π+π-),
2(π+π-π0),
cross sections is obtained. Unlike
e+e- → 3(π+π-) and
e+e- → 2(π+π-π0) processes,
no structures in total cross section are found near the
threshold
within the limits of measurement errors.
|