TY  - JOUR
AU  - BABAR Collaboration (Lees, J. P. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Villanueva-Perez, P.
PY  - 2013
DA  - 2013//
TI  - Precision measurement of the e(+)e(-) -> K+K-(gamma) cross section with the initial-state radiation method at BABAR
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 032013
EP  - 28pp
VL  - 88
IS  - 3
PB  - Amer Physical Soc
AB  - A precise measurement of the cross section for the process e(+)e(-) -> K+K-(gamma) from threshold to an energy of 5 GeV is obtained with the initial-state radiation (ISR) method using 232 fb(-1) of data collected with the BABAR detector at e(+)e(-) center-of-mass energies near 10.6 GeV. The measurement uses the effective ISR luminosity determined from the e(+)e(-) -> mu(+)mu(-)(gamma)gamma(ISR) process with the same data set. The corresponding lowest-order contribution to the hadronic vacuum polarization term in the muon magnetic anomaly is found to be a(mu)(KK,LO) = (22.93 +/- 0.18(stat) +/- 0.22(syst)) x 10(-10). The charged kaon form factor is extracted and compared to previous results. Its magnitude at large energy significantly exceeds the asymptotic QCD prediction, while the measured slope is consistent with the prediction.
SN  - 1550-7998
UR  - http://arxiv.org/abs/arXiv:1306.3600
UR  - https://doi.org/10.1103/PhysRevD.88.032013
DO  - 10.1103/PhysRevD.88.032013
LA  - English
N1  - WOS:000323609500003
ID  - BABARCollaborationLees_etal2013
ER  -