Cross sections for the reactions $e^+ e^-\to K_S^0 K_L^0$, $K_S^0 K_L^0 \pi^+\pi^-$, $K_S^0 K_S^0 \pi^+\pi^-$, and $K_S^0 K_S^0 K^+K^-$ from events with initial-state radiation - INSPIRE

DataBETA

Cross sections for the reactions $e^+ e^-\to K_S^0 K_L^0$ , $K_S^0 K_L^0 \pi^+\pi^-$ , $K_S^0 K_S^0 \pi^+\pi^-$ , and $K_S^0 K_S^0 K^+K^-$ from events with initial-state radiation

BaBar

Collaboration

Mar 29, 2014

25 pages

Published in:

Phys.Rev.D 89 (2014) 9, 092002

Published: May 6, 2014

e-Print:

1403.7593 [hep-ex]

DOI:

10.1103/PhysRevD.89.092002

PDG:

{{\mathit \phi}{(1020)}}

\rightarrow

{{\mathit K}_L^0}

{{\mathit K}_S^0}

Report number:

SLAC-PUB-15934

Experiments:

SLAC-PEP2-BABAR

View in:

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reference search91 citations

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Abstract: (APS)

We study the processes e+e-→KS0KL0γ, KS0KL0π+π-γ, KS0KS0π+π-γ, and KS0KS0K+K-γ, where the photon is radiated from the initial state, providing cross section measurements for the hadronic states over a continuum of center-of-mass energies. The results are based on 469 fb-1 of data collected with the BABAR detector at SLAC. We observe the ϕ(1020) resonance in the KS0KL0 final state and measure the product of its electronic width and branching fraction with about 3% uncertainty. We present a measurement of the e+e-→KS0KL0 cross section in the energy range from 1.06 to 2.2 GeV and observe the production of a resonance at 1.67 GeV. We present the first measurements of the e+e-→KS0KL0π+π-, KS0KS0π+π-, and KS0KS0K+K- cross sections and study the intermediate resonance structures. We obtain the first observations of J/ψ decay to the KS0KL0π+π-, KS0KS0π+π-, and KS0KS0K+K- final states.

Note:

28 pages, 42 figures

13.66.Bc
13.25.Jx
14.40.-n
resonance: production
radiation: initial-state interaction
mass spectrum
BaBar
electron positron: annihilation
K0: pair production
K0(L)

References(37)

Figures(50)

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