Aubert, B;
Barate, R;
Bona, M;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
... BarBar Collaboration; + view all
(2006)
Observation of e(+)e(-) annihilation into the C=+1 hadronic final states rho(0)rho(0) and phi rho(0).
PHYS REV LETT
, 97
(11)
, Article 112002. 10.1103/PhysRevLett.97.112002.
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Abstract
We report the first observation of e(+)e(-) annihilation into states of positive C parity, namely, rho(0)rho(0) and phi rho(0). The two states are observed in the pi(+)pi(-)pi(+)pi(-) and K+K-pi(+)pi(-) final states, respectively, in a data sample of 225 fb(-1) collected by the BABAR experiment at the Positron-Electron Project II e(+)e(-) storage rings at energies near root s=10.58 GeV. The distributions of cos theta(*), where theta(*) is the center-of-mass polar angle of the phi meson or the forward rho(0) meson, suggest production by two-virtual-photon annihilation. We measure cross sections within the range vertical bar cos theta(*)vertical bar < 0.8 of sigma(e(+)e(-)->rho(0)rho(0))=20.7 +/- 0.7(stat)+/- 2.7(syst) fb and sigma(e(+)e(-)->phi rho(0))=5.7 +/- 0.5(stat)+/- 0.8(syst) fb.
| Type: | Article |
|---|---|
| Title: | Observation of e(+)e(-) annihilation into the C=+1 hadronic final states rho(0)rho(0) and phi rho(0) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.97.112002 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.97.112002 |
| Language: | English |
| Additional information: | © 2006 The American Physical Society |
| Keywords: | BHABHA SCATTERING, ENERGIES |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1303804 |
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