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1. B0 meson decays to ρ0K*0 , f0K*0 , and ρ−K*+ , including higher K* resonances

   https://doi.org/10.1103/PhysRevD.85.072005  

   Lees, J. P. ; Poireau, V. ; Tisserand, V. ; Garra Tico, J. ; Grauges, E. ; Martinelli, M. ; Milanes, D. A. ; Palano, A. ; Pappagallo, M. ; Eigen, G. ; et al ( April 2012 , Physical Review D)
2. Collins asymmetries in inclusive charged KK and Kπ pairs produced in e+e− annihilation

   https://doi.org/10.1103/PhysRevD.92.111101  

   Lees, J. P. ; Poireau, V. ; Tisserand, V. ; Grauges, E. ; Palano, A. ; Eigen, G. ; Stugu, B. ; Brown, D. N. ; Kerth, L. T. ; Kolomensky, Yu. G. ; et al ( December 2015 , Physical Review D)
3. Study of CP violation in B∓→Dh∓ ( h=K,π ) with the modes D→K∓π±π0 , D→π+π−π0 and D→K+K−π0

   https://doi.org/10.1103/PhysRevD.91.112014  

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4. Photoproduction of K+K− Pairs in Ultraperipheral Collisions

   https://doi.org/10.1103/PhysRevLett.132.222303  

   Acharya, S ; Adamová, D ; Aglieri_Rinella, G ; Agnello, M ; Agrawal, N ; Ahammed, Z ; Ahmad, S ; Ahn, S U ; Ahuja, I ; Akindinov, A ; et al ( May 2024 , Physical Review Letters)

   $K^{+}{K}^{-}$pairs may be produced in photonuclear collisions, either from the decays of photoproduced$\varphi (1020)$mesons or directly as nonresonant$K^{+}{K}^{-}$pairs. Measurements of$K^{+}{K}^{-}$photoproduction probe the couplings between the$\varphi (1020)$and charged kaons with photons and nuclear targets. The kaon-proton scattering occurs at energies far above those available elsewhere. We present the first measurement of coherent photoproduction of$K^{+}{K}^{-}$pairs on lead ions in ultraperipheral collisions using the ALICE detector, including the first investigation of direct$K^{+}{K}^{-}$production. There is significant$K^{+}{K}^{-}$production at low transverse momentum, consistent with coherent photoproduction on lead targets. In the mass range$1.1<M_{KK}<1.4\mathrm{GeV}/c^2$above the$\varphi (1020)$resonance, for rapidity$|y_{KK}|<0.8$and$p_{T,KK}<0.1\mathrm{GeV}/c$, the measured coherent photoproduction cross section is$\mathrm{d}\sigma /\mathrm{d}y=3.37\pm 0.61(\text{stat})\pm 0.15(\mathrm{syst})\mathrm{mb}$. The center-of-mass energy per nucleon of the photon-nucleus (Pb) system$W_{\gamma \mathrm{Pb},n}$ranges from 33 to 188 GeV, far higher than previous measurements on heavy-nucleus targets. The cross section is larger than expected for$\varphi (1020)$photoproduction alone. The mass spectrum is fit to a cocktail consisting of$\varphi (1020)$decays, direct$K^{+}{K}^{-}$photoproduction, and interference between the two. The confidence regions for the amplitude and relative phase angle for direct$K^{+}{K}^{-}$photoproduction are presented.

   © 2024 CERN, for the ALICE Collaboration2024CERN 

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5. Photoproduction of K+K− meson pairs on the proton

   https://doi.org/10.1103/PhysRevD.98.052009  

   Lombardo, S. ; Battaglieri, M. ; Celentano, A. ; D’Angelo, A. ; De Vita, R. ; Filippi, A. ; Glazier, D. I. ; Hughes, S. M. ; Mathieu, V. ; Rizzo, A. ; et al ( September 2018 , Physical Review D)