We report the observation of e(+)e(-)->phi eta near root s=10.58 GeV with 6.5 sigma significance in the K+K-gamma gamma final state in a data sample of 224 fb(-1) collected by the BABAR experiment at the PEP-II e(+)e(-) storage rings. We measure the restricted radiation-corrected cross section to be sigma(e(+)e(-)->phi eta)=2.1 +/- 0.4(stat)+/- 0.1(syst) fb within the range vertical bar cos theta(*)vertical bar < 0.8, where theta(*) is the center-of-mass polar angle of the phi meson. The phi meson is required to be in the invariant mass range of 1.008 < m(phi)< 1.035 GeV/c(2). The radiation-corrected cross section in the full cos theta(*) range is extrapolated to be 2.9 +/- 0.5(stat)+/- 0.1(syst) fb.

Observation of the exclusive reaction e(+)e(-)->phi eta at root s=10.58 GeV / Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J.p., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., Stugu, B., Abrams, G.s., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 74:11(2006). [10.1103/PhysRevD.74.111103]

Observation of the exclusive reaction e(+)e(-)->phi eta at root s=10.58 GeV

RAHATLOU, SHAHRAM;BELLINI, Fabio;CAVOTO, Gianluca;DEL RE, Daniele;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;VOENA C;
2006

Abstract

We report the observation of e(+)e(-)->phi eta near root s=10.58 GeV with 6.5 sigma significance in the K+K-gamma gamma final state in a data sample of 224 fb(-1) collected by the BABAR experiment at the PEP-II e(+)e(-) storage rings. We measure the restricted radiation-corrected cross section to be sigma(e(+)e(-)->phi eta)=2.1 +/- 0.4(stat)+/- 0.1(syst) fb within the range vertical bar cos theta(*)vertical bar < 0.8, where theta(*) is the center-of-mass polar angle of the phi meson. The phi meson is required to be in the invariant mass range of 1.008 < m(phi)< 1.035 GeV/c(2). The radiation-corrected cross section in the full cos theta(*) range is extrapolated to be 2.9 +/- 0.5(stat)+/- 0.1(syst) fb.
2006
01 Pubblicazione su rivista::01a Articolo in rivista
Observation of the exclusive reaction e(+)e(-)->phi eta at root s=10.58 GeV / Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J.p., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., Stugu, B., Abrams, G.s., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 74:11(2006). [10.1103/PhysRevD.74.111103]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231894
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