# Excitation of physical vacuum through $\bar p p$ annihilation in selected channels

Abstract : In this work we discuss the interest of measuring the ratio of of $p\bar p$ annihilation into kaon and pion pairs near the threshold region, where $S$ state dominates. It is shown that a good agreement with existing data on the ratio of the yields of charged kaon to pion pairs is obtained taking into account not only quark rearrangement in the incident hadrons, but also vacuum excitations.
Document type :
Journal articles

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Submitted on : Thursday, June 21, 2012 - 10:26:21 AM
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### Citation

E. A. Kuraev, E. Tomasi-Gustafsson. Excitation of physical vacuum through $\bar p p$ annihilation in selected channels. Physical Review D, American Physical Society, 2010, 81 (1), pp.017501. ⟨10.1103/PhysRevD.81.017501⟩. ⟨in2p3-00710572⟩

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