Exclusive production of pi 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 cos theta* and invariant mass, for \ cos theta* \ < 0.6 and invariant masses between 2.0 and 6.0 GeV/c(2) (2.25 and 4.0 GeV/c(2)) 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. (C) 2003 Published by Elsevier B.V
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...
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 π and K meson pairs in two photon collisions is measured with ALEPH data col...
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 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...
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 π and K meson pairs in two photon collisions is measured with ALEPH data col...
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...