@Article{BABARCollaborationLees_etal2015,
author="BABAR Collaboration (Lees, J. P. et al
and Martinez-Vidal, F.
and Oyanguren, A.",
title="Study of the e(+)e(-) -> K+K- reaction in the energy range from 2.6 to 8.0 GeV",
journal="Physical Review D",
year="2015",
publisher="Amer Physical Soc",
volume="92",
number="7",
pages="072008--16pp",
abstract="The e(+)e(-) -> K+K- cross section and charged-kaon electromagnetic form factor are measured in the e(+)e(-) center-of-mass energy range (E) from 2.6 to 8.0 GeV using the initial-state radiation technique with an undetected photon. The study is performed using 469 fb(-1) of data collected with the BABAR detector at the PEP-II2 e(+)e(-) collider at center-of-mass energies near 10.6 GeV. The form factor is found to decrease with energy faster than 1/E-2 and approaches the asymptotic QCD prediction. Production of the K+K- final state through the J/psi and psi(2S) intermediate states is observed. The results for the kaon form factor are used together with data from other experiments to perform a model-independent determination of the relative phases between electromagnetic (single-photon) and strong amplitudes in J/psi and psi(2S). K+K- decays. The values of the branching fractions measured in the reaction e(+)e(-) -> K+K- are shifted relative to their true values due to interference between resonant and nonresonant amplitudes. The values of these shifts are determined to be about +/- 5{\%} for the J/psi meson and +/- 15{\%} for the psi(2S) meson.",
optnote="WOS:000363014900002",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2413), last updated on Thu, 05 Nov 2015 13:42:29 +0000",
issn="1550-7998",
doi="10.1103/PhysRevD.92.072008",
opturl="http://arxiv.org/abs/1507.04638",
opturl="https://doi.org/10.1103/PhysRevD.92.072008",
archivePrefix="arXiv",
eprint="1507.04638",
language="English"
}