Exclusive production of π and K meson pairs in two photon collisions is measured with ALEPH data collected between 1992 and 2000. Cross-sections are presented as a function of and invariant mass, for and invariant masses between 2.0 and 6.0 GeV/c2 (2.25 and 4.0 GeV/c2) for pions (kaons). The shape of the distributions are found to be well described by QCD predictions but the data have a significantly higher normalization
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of π and K meson pairs in two photon collisions is measured with ALEPH data col...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of πand K meson pairs in two photon collisions is measured with ALEPH data coll...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of π and K meson pairs in two photon collisions is measured with ALEPH data col...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of pi and K meson pairs in two photon collisions is measured with ALEPH data co...
Exclusive production of πand K meson pairs in two photon collisions is measured with ALEPH data coll...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...
Exclusive production of $\pi$ and K meson pairs in two photon collisions is measured with ALEPH data...