Abstract
We measure the Born cross sections of the process e+e-→K+K-K+K- at center-of-mass (c.m.) energies, s, between 2.100 and 3.080 GeV. The data were collected using the BESIII detector at the BEPCII collider. An enhancement at s=2.232 GeV is observed, very close to the e+e-→ΛΛ production threshold. A similar enhancement at the same c.m. energy is observed in the e+e-→φK+K- cross section. The energy dependence of the K+K-K+K- and φK+K- cross sections differs significantly from that of e+e-→φπ+π-.
| Original language | English (US) |
|---|---|
| Article number | 032009 |
| Journal | Physical Review D |
| Volume | 100 |
| Issue number | 3 |
| DOIs | |
| State | Published - Aug 30 2019 |
Bibliographical note
Publisher Copyright:© 2019 authors. Published by the American Physical Society.
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Dive into the research topics of 'Cross section measurements of e+e- →k+K-K+K- and φk+K- at center-of-mass energies from 2.10 to 3.08 GeV CROSS SECTION MEASUREMENTS of e+e- →k+K-K+K- ... M. ABLIKIM et al.'. Together they form a unique fingerprint.Cite this
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