The $e^+ e^-\to 2(π^+π^-)π^0$, 2(π^+π^-)η$, $K^+ K^-π^+π^-π^0$ and $K^+ K^-π^+π^-η$ Cross Sections Measured with Initial-State Radiation

Details The $e^+ e^-\to 2(π^+π^-)π^0$, 2(π^+π^-)η$, $K^+ K^-π^+π^-π^0$ and $K^+ K^-π^+π^-η$ Cross Sections Measured with Initial-State Radiation The $e^+ e^-\to 2(π^+π^-)π^0$, 2(π^+π^-)η$, $K^+ K^-π^+π^-π^0$ and $K^+ K^-π^+π^-η$ Cross Sections Measured with Initial-State Radiation

2007-08-18

arxiv.org/abs/0708.2461v2

Phys.Rev.D76:092005,2007; Erratum-ibid.D77:119902,2008

Physics

High Energy Physics

High Energy Physics - Experiment

30 pages, 43 postscript figures, submitted to Phys.Rev.D

Scientific paper

10.1103/PhysRevD.76.092005

We study the processes $e^+ e^-\to 2(\pi^+\pi^-)\pi^0\gamma$, $2(\pi^+\pi^-)\eta\gamma$, $K^+ K^-\pi^+\pi^-\pi^0\gamma$ and $K^+ K^-\pi^+\pi^-\eta\gamma$ with the hard photon radiated from the initial state. About 20000, 4300, 5500 and 375 fully reconstructed events, respectively, are selected from 232 fb$^{-1}$ of BaBar data. The invariant mass of the hadronic final state defines the effective $e^+ e^-$ center-of-mass energy, so that the obtained cross sections from the threshold to about 5 GeV can be compared with corresponding direct \epem measurements, currently available only for the $\eta\pi^+\pi^-$ and $\omega\pi^+\pi^-$ submodes of the $e^+ e^-\to 2(\pi^+\pi^-)\pi^0$ channel. Studying the structure of these events, we find contributions from a number of intermediate states, and we extract their cross sections where possible. In particular, we isolate the contribution from $e^+ e^-\to\omega(782)\pi^+\pi^-$ and study the $\omega(1420)$ and $\omega(1650)$ resonances. In the charmonium region, we observe the $J/\psi$ in all these final states and several intermediate states, as well as the $\psi(2S)$ in some modes, and we measure the corresponding branching fractions.

Affiliated with

Also associated with

No associations

Rating

The $e^+ e^-\to 2(π^+π^-)π^0$, 2(π^+π^-)η$, $K^+ K^-π^+π^-π^0$ and $K^+ K^-π^+π^-η$ Cross Sections Measured with Initial-State Radiation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The $e^+ e^-\to 2(π^+π^-)π^0$, 2(π^+π^-)η$, $K^+ K^-π^+π^-π^0$ and $K^+ K^-π^+π^-η$ Cross Sections Measured with Initial-State Radiation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The $e^+ e^-\to 2(π^+π^-)π^0$, 2(π^+π^-)η$, $K^+ K^-π^+π^-π^0$ and $K^+ K^-π^+π^-η$ Cross Sections Measured with Initial-State Radiation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-329389